Updated on 2024/03/21

写真a

 
IWANAGA Seiji
 
Organization
Graduate School of Bioagricultural Sciences Department of Forest and Environmental Resources Sciences Associate professor
Graduate School
Graduate School of Bioagricultural Sciences
Undergraduate School
School of Agricultural Sciences Department of Bioenvironmental Sciences
Title
Associate professor

Degree 3

  1. 博士(農学) ( 2012.5   筑波大学 ) 

  2. 修士(環境科学) ( 2007.3   筑波大学 ) 

  3. 学士(経済学) ( 2004.3   横浜国立大学 ) 

Research Interests 6

  1. 木材加工産業

  2. domestic timber export

  3. plywood

  4. tropical timber

  5. enterprise strategy

  6. ベトナム

Research Areas 4

  1. Environmental Science/Agriculture Science / Environmental agriculture

  2. Humanities & Social Sciences / Area studies

  3. Environmental Science/Agriculture Science / Environmental policy and social systems

  4. Environmental Science/Agriculture Science / Rural sociology and agricultural structure

Current Research Project and SDGs 2

  1. 合板・木質ボードに利用される原料(原木)の動向とそれにかかわる企業戦略

  2. ベトナムの木材産業:認証・植林・伐採から加工・輸出まで

Research History 5

  1. 国立研究開発法人森林研究・整備機構森林総合研究所   林業経営・政策研究領域林業システム研究室   主任研究員

    2016.10 - 2020.3

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    Country:Japan

  2. 国立研究開発法人森林総合研究所   林業経営・政策研究領域林業システム研究室   研究員

    2015.4 - 2016.9

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    Country:Japan

  3. University of Tsukuba   Designated assistant professor

    2013.11 - 2015.3

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    Country:Japan

  4. 財団法人 林業経済研究所   研究員

    2013.6 - 2013.10

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    Country:Japan

  5. 日本学術振興会特別研究員   特別研究員

    2011.4 - 2013.3

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    Country:Japan

Professional Memberships 5

  1. 森林計画学会

    2021.7

  2. JAPAN SOCIETY OF TROPICAL ECOLOGY

  3. THE JAPANESE FOREST SOCIETY

  4. 中部森林学会

  5. THE JAPANESE FOREST ECONOMIC SOCIETY

Committee Memberships 22

  1. 林業経済学会   林業経済学会 2021年秋季大会実行委員  

    2021.12   

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    Committee type:Academic society

  2. 中部森林学会   第11回中部森林学会大会運営委員  

    2021.11   

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    Committee type:Academic society

  3. 林野庁 中部森林管理局   事業評価技術検討会委員  

    2021.7   

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    Committee type:Government

  4. 一社)緑の循環認証会議(SGEC)   一社)緑の循環認証会議(SGEC) 評議員  

    2021.6   

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    Committee type:Other

  5. 中部森林学会   林政担当編集委員  

    2020.12   

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    Committee type:Other

  6. 林業経済学会   林業経済学会 2020年秋季大会実行委員  

    2020.12   

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    Committee type:Academic society

  7. 林業経済学会   学会大会運営委員  

    2020.11 - 2020.12   

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    Committee type:Academic society

  8. 林業経済学会   総務主事  

    2020.4   

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    Committee type:Academic society

  9. The Japanese Forest Economic Society   General affairs  

    2020.3   

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    Committee type:Academic society

  10. 日本森林学会   ダイバーシティ推進委員  

    2019.6   

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    Committee type:Academic society

  11. 日本森林学会   森林科学編集委員(林政担当)  

    2019.4 - 2020.3   

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    Committee type:Academic society

  12. 林業経済学会   2018年秋季大会実行委員  

    2018.11   

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    Committee type:Academic society

  13. 日本森林学会   タイバーシティー推進委員  

    2018.6   

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    Committee type:Academic society

  14. 日本森林学会   会計主事  

    2018.6 - 2020.5   

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    Committee type:Academic society

  15. 日本森林学会   会計担当主事  

    2018.6 - 2020.5   

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    Committee type:Academic society

  16. 一社)緑の循環認証会議(SGEC)   専門部会作業部会員  

    2016.7 - 2017.3   

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    Committee type:Other

  17. 全国木材組合連合会   違法伐採対策・合法木材普及推進委員会委員  

    2016.7 - 2017.3   

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    Committee type:Other

  18. 日本森林学会   男女共同参画担当主事  

    2016.6 - 2018.5   

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    Committee type:Academic society

  19. 日本熱帯生態学会   第26回大会実行委員  

    2016.6   

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    Committee type:Academic society

  20. 木材利用システム研究会   総務担当常任幹事および事務局  

    2015.9 - 2020.3   

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    Committee type:Other

  21. 日本熱帯生態学会   監事  

    2014.4 - 2015.3   

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    Committee type:Academic society

  22. 独)森林総合研究所   林野庁補助事業「REDD推進体制緊急整備事業」 政策分科会委員  

    2014.2 - 2015.3   

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    Committee type:Other

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Awards 2

  1. 林業経済学会奨励賞

    2015   林業経済学会  

    岩永 青史

  2. 林業経済学会学生論文賞

    2012   林業経済学会  

    岩永 青史

 

Papers 53

  1. Incentives for forest certifications in Vietnam: a case of the North Central region

    Iwanaga S., Long T.V., Le T.T.T., Van Minh N., Tuan H.H.

    Journal of Forest Research     2024

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Journal of Forest Research  

    The area of planted forests is continuously expanding to meet the demand for timber, while curbing the loss of natural forests. Additionally, the sustainability of timber production is also attracting attention, and the number of forest certifications acquired by local people is increasing. In the North Central Region of Vietnam, where forest certification has been most actively acquired by the local people, participation accelerators and bottlenecks for the forest certification group were extracted by identifying the incentives for 50 group members to acquire forest certification, the reasons for not acquiring forest certification for 47 non-members, and the process of acquiring land rights for planted forests by conducting semi-structured interviews. Consequently, many members joined the certification group for economic reasons, while more than 60% of the non-members did not join because of the longer harvesting rotation. By focusing on the land use rights acquisition process, it became clear that outsiders buy land use rights and plant trees. The land they acquired was larger than the land owned by the villagers, and all were forest certified. It can be said that out-of-village landowners contribute significantly to the expansion of forest certification. However, there are concerns that the overconcentration of land rights will widen economic disparities within regions and that forests, which serve as a safety net for local people, will disappear.

    DOI: 10.1080/13416979.2024.2324207

    Scopus

  2. A study of trail maintenance utilizing volunteers in Chubusangaku National Park

    Hori Akiho, Iwanaga Seiji, Harada Kazuhiro

    The Japanese Forest Society Congress   Vol. 134 ( 0 ) page: 87   2023.5

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:THE JAPANESE FORESTRY SOCIETY  

    <p>[in Japanese]</p>

    DOI: 10.11519/jfsc.134.0_87

    CiNii Research

  3. Trends of private forest ownership and the role of forest owners’ associations in Norway

    Iwanaga Seiji, Sato Noriko, Koga Shiori

        page: 46 - 53   2023.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    This study gives insight into the trends of individual private forest ownership and forest management in Norway. Contrary to Japanese forest management, larger forest areas are actively managed by private owners and forest owners’ association (FA) are more active in Norway. The questionnaire survey using Google Form was conducted for members of two of the four FAs in Norway. One of the FAs is Glommen Mjøsen Skog (64 respondents with an average forest area of 453 ha). The members of Glommen Mjøsen Skog own larger properties suitable for forestry. The other is Allskog (41 respondents with an average forest area of 198 ha). Allskog’s members are located on the west coast of Norway where forestry is more difficult due to many steep slopes and the smaller properties. Both FAs’ members were interested in expanding their properties for the purpose of “expanding forestry management” and “asset formation”. In Allskog, 10 of the respondents (24%) purchased 114 ha on average in the past five years. On the other hand, 15 of the respondents in Glommen Mjøsen Skog answered that they expanded their property with 187 ha on average. More than 50% of the respondents in Glommen Mjøsen Skog have successors, while 40% in Allskog. The results indicate that there is a difference in the attractiveness of forest ownership and forestry. Regarding the operation of forest management, 47% and 59% answered “done by respondents themselves or their family members” in Glommen Mjøsen Skog and in Allskog, respectively. Similarly, 19% and 41% answered that harvesting was implemented by “respondents themselves or their family members” in Glommen Mjøsen Skog and in Allskog, respectively. Because members in Allskog own smaller properties, it seems that forest owners have a tendency to carry out all operations by themselves or their family members.

    CiNii Research

  4. ノルウェーの森と

    岩永 青史

    農中総研 調査と情報   Vol. 2023.01 ( 94 ) page: 22 - 23   2023.1

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:株式会社 農林中金総合研究所  

    DOI: 10.57542/bullnochuri.2023.01.94_22

    CiNii Research

  5. Report on the 133nd Annual JFS Meeting Workshop “Gather! Forest of Conference”

    Takada Noriyo, Iwanaga Seiji, Kimura Megumi, Yamagawa Hiromi, Nanko Kazuki, Takeuchi Hiroe, Takayama Norimasa

    Journal of the Japanese Forest Society   Vol. 105 ( 5 ) page: 187 - 190   2023

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Japanese Forest Society  

    DOI: 10.4005/jjfs.105.187

    Scopus

    CiNii Research

  6. Statistical analysis regarding contribution of local timber to timber self-sufficiency rate rising Reviewed

    IWANAGA Seiji

      Vol. 70   page: 47 - 50   2022.6

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    Authorship:Lead author, Last author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  7. Determinants and Challenges of Community Sand Forest Management in Vietnam Reviewed International coauthorship International journal

    Hoang Huy Tuan, Nguyen Van Minh, Nguyen Thi Hong Mai, Tran Thi Thuy Hang, Seiji Iwanaga

    Forests   Vol. 13 ( 4 ) page: 561 - 561   2022.4

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3390/f13040561

    Web of Science

    Scopus

  8. Determinants and Challenges of Community Sand Forest Management in Vietnam Reviewed International coauthorship

    Hoang Huy Tuan, Nguyen Van Minh, Nguyen Thi Hong Mai, Tran Thi Thuy Hang, Seiji Iwanaga

    forests   Vol. 13   page: 561   2022.3

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: doi.org/10.3390/f13040561

  9. Domestic large-diameter log use in the Japanese lumber manufacturing industry: focusing on regional differences Reviewed International journal

    Seiji Iwanaga, Masato Hayafune, Wataru Tanaka, Yuji Ikami

    Journal of Forest Research   Vol. 27 ( 1 ) page: 8 - 14   2022.1

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Informa UK Limited  

    Japan's postwar policies with respect to forestry management have led to the aging of planted forests and a shift toward large-diameter logs that has created a challenge for how to use such logs in the lumber manufacturing industry. In recent years, medium-diameter logs have been the predominant type, and there has been less demand for large-diameter logs. This study examines the Japanese lumber manufacturing industry's consumption of domestic timber using survey data from 21 member companies of the Domestic Timber Sawmill Association. The results suggest that regional characteristics and the tree species consumed are the two main factors that drive the decision to use large-diameter logs. While current demand for large-diameter logs is considered low, the results show that demand is present, and there are signs of growing consumption of these logs within the lumber manufacturing industry. As the current machinery that handles medium-diameter logs depreciates, it is expected that companies will respond by either introducing machinery that can accommodate large-diameter logs or changing their products.

    DOI: 10.1080/13416979.2021.1998949

    Web of Science

    Scopus

  10. 再利用木材の流通と市場における課題に関する研究

    佐野 百香, 岩永 青史

    木材利用システム研究   Vol. 8 ( 0 ) page: 9 - 12   2022

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:木材利用システム研究会  

    DOI: 10.34494/jwus.8.0_9

    CiNii Research

  11. Participation of Local People in the Payment for Forest Environmental Services Program: A Case Study in Central Vietnam Invited Reviewed International coauthorship International journal

    Hoang Phan Bich Ngoc, Takahiro Fujiwara, Seiji Iwanaga, Noriko Sato

    Sustainability   Vol. 13 ( 22 ) page: 12731 - 12731   2021.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3390/su132212731

    Web of Science

    Scopus

  12. Actual situations and challenges of timber legality assurance system in Indonesia

    Kitayama Shun, Iwanaga Seiji, Harada Kazuhiro

    Japanese Journal of International Forest and Forestry   Vol. 111 ( 0 ) page: 3   2021.8

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Japan International Forestry Promotion and Cooperation Center  

    DOI: 10.32205/jjjiff.111.0_3

    CiNii Research

  13. Challenges of the Payment for Forest Environmental Services (PFES) program in forest conservation: a case study in Central Vietnam Reviewed International coauthorship International journal

    Hoang Phan Bich Ngoc, Takahiro Fujiwara, Seiji Iwanaga, Noriko Sato

    Journal of Forest Research   Vol. 26 ( 6 ) page: 1 - 10   2021.8

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Informa UK Limited  

    DOI: 10.1080/13416979.2021.1955438

    Web of Science

    Scopus

  14. Changes in the Vietnamese Timber Processing Industry: A Case of Quang Tri Province, North Central Region Reviewed International coauthorship International journal

    Seiji Iwanaga, Dang Thai Hoang, Hirofumi Kuboyama, Dang Thai Duong, Hoang Huy Tuan, Nguyen Van Minh

    Forests   Vol. 12 ( 8 ) page: 984 - 984   2021.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:MDPI AG  

    Vietnam’s forestry policies have expanded the area of planted forests in order to meet the supply of raw materials for the timber processing industry. However, the diversity and volume of demand in the industry have also increased, and a shortage of raw materials can be assumed. For clarifying the correspondence of stakeholders, we explore changes in the resource supply behavior of forestry companies and procurement strategies of companies that manufacture lumber for glued laminated timber, medium density fiberboard (MDF) and wood pellets. Next, we discuss issues and future developments surrounding the supply and demand for timber from planted forests. According to a survey of Quang Tri Province, both industrial and on-farm tree planting play an important role in Vietnam’s wood industry. The origin of the supply has been categorized according to its purpose (products). On the other hand, with the declining supply of imported timber and natural forest timber, inquiries from sawmills and glued laminated timber factories for timber from planted forests have increased, and wood pellet manufacturers are facing competition for raw material procurement with MDF manufacturers, and the supply of timber from planted forests is becoming scarce. The key to the solution lies in improving the low productivity of current on-farm tree planting. To this end, forming farmer groups upon the acquisition of forest certification will help achieve economies of scale and bargaining power.

    DOI: 10.3390/f12080984

    Web of Science

    Scopus

  15. 3. Vietnamese Forest Resource Strategies: Shift in Raw Materials to Plantation Forest Timber (The 2020 Spring Symposium held by the Japanese Forest Economic Society “Southeast Asian Forestry in the Post-natural Forest Era”)

    IWANAGA Seiji

    FOREST ECONOMY   Vol. 74 ( 5 ) page: 15 - 15   2021

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:FOREST ECONOMIC RESEARCH INSTITUTE  

    DOI: 10.19013/rinrin.74.5_15_1

    CiNii Research

  16. 製材業における国産大径材利用の実態と課題 Reviewed

    岩永青史, 早舩真智, 田中亘, 伊神裕司

    中部森林研究   Vol. 68   page: 57 - 58   2020.6

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  17. Impact of policies on raw material procurement in the Vietnamese timber processing industry: a case study of sawmills in Hue City Reviewed International coauthorship International journal

    Seiji Iwanaga, Dang Thai Duong, Ngyen Van Minh

    Journal of Forest Research   Vol. 25 ( 2 ) page: 59 - 68   2020.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

  18. Vietnamese Forest Resource Strategies: Shift in Raw Materials to Plantation Forest Timber Invited Reviewed

    Seiji IWANAGA

    Journal of Forest Economics   Vol. 66 ( 1 ) page: 35 - 44   2020.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

  19. Policy effects for forest conservation and local livelihood improvements in Vietnam: a case study on Bach Ma National Park Reviewed International coauthorship International journal

    Seiji Iwanaga, Shigeki Yokoyama, Dang Thai Duong, Nguyen Van Minh

    Journal of Forest Research   Vol. 24 ( 5 ) page: 267 - 274   2019.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

  20. 東南アジアにおける木質面材の生産、消費、輸出入の動向

    岩永青史, 早舩真智

    木材情報   Vol. 339   page: 10-13   2019.8

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    Language:English   Publishing type:Research paper (scientific journal)  

  21. 南洋材丸太および合板をめぐる近年の動向と日本の合板産業

    岩永青史, 早舩真智

    木材情報   Vol. 338   page: 16-19   2019.7

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    Language:English   Publishing type:Research paper (scientific journal)  

  22. The tendency of expanding forest certification in Vietnam: Case analysis of certification holders in Quang Tri Province Reviewed International coauthorship

    Iwanaga S, Duong DT, Ha TH, Minh NV

    JARQ   Vol. 53 ( 1 ) page: 67 - 78   2019

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

  23. Impact of the change in raw material supply on enterprise strategies of the Japanese plywood industry Reviewed International journal

    Iwanaga S, Tsuzuki N, Kuboyama H

    Journal of Forest Research   Vol. 23 ( 6 ) page: 1 - 11   2018

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

  24. Diverse aspects of the forestry management reorganization - Suggestion for forestry business -

    OTSUKA Ikumi, HORI Yasuto, YAMADA Shigeki, IWANAGA Seiji, AMANO Tomomasa, KOMAKI Takaaki, MOCHIDA Haruyuki

    Bulletin of the Forestry and Forest Products Research Institute   Vol. 17 ( 3 ) page: 233 - 248   2018

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:国立研究開発法人森林研究・整備機構 森林総合研究所  

    Downturns in Japanese timber prices are currently discouraging the participation of Japan&#039;s forest owners inmanagement practices, to the extent that timberlands are being sold and reforestation and renewal projects are being abandoned. In contrast, some corporate entities that actively require a timber supply are engaging in, and evenexpanding, forest management investment; long-term forest management are also being established. Thus, Japan&#039;sapproach to forest management is undergoing reorganization.In 2008, we had an opportunity to discuss with two major financial institutions about the possibility of the foresttrust in Japan. This study aims to clarify the factors regarding main difficulties of the forestry business through theforest trust indicated by major financial institutions. The obstacles that these institutions faced included uncertaintyin securing cash flow for forestry projects, a potential shortage of cooperating experts and financial institutions, andinstability in the physical status of and rights to the forest properties. In the context of these issues, we describe the conditions affecting the commodification of the forest industry, which has allowed the formation of forestry business active in Japan today.

  25. 米国における建築用面材利用の歴史的展開から見る日本の合板産業

    岩永青史, 久保山裕史, 都築伸行

    木材情報   Vol. 326   page: 19-22   2018

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    Language:English   Publishing type:Research paper (scientific journal)  

  26. Social Safeguards in National and Sub-national REDD plus Initiatives: A comparison based on literature review Reviewed

    Seiji Iwanaga, Yasuhiro Yokota, Kimihiko Hyakumura

    JARQ-JAPAN AGRICULTURAL RESEARCH QUARTERLY   Vol. 51 ( 1 ) page: 31 - 43   2017.1

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:JAPAN INT RESEARCH CENTER AGRICULTURAL SCIENCES  

    REDD+ is an approach to reduce deforestation and forest degradation, using economic incentives to influence behavior. The need for safeguards has emerged to avoid the negative social and environmental impacts caused by an overemphasis of such economic incentives. In the context of safeguards, in addition to the UNFCCC's official efforts, voluntary activities (initiatives) by many organizations have attempted to formulate principles, criteria, indicators and guidelines. In this article, we clarified the elements to enhance social safeguards and discussed how those elements are included in each initiative. We reviewed the literature on the SEPC, SESA and REDD+ SES initiatives, and clarified the focal points and problems relating to social safeguards. We found that benefit-sharing is an important aspect of social safeguards, and that more discussions are needed to enhance initiatives. The REDD+ SES initiative has received little criticism in literature to date and has the best-covered elements including "benefit-sharing" among the three initiatives. If more countries adopt REDD+ SES and more cases can be accumulated to identify problems and solutions, it could become a popular initiative in the international community to enhance the social safeguards in REDD+.

    DOI: 10.6090/jarq.51.31

    Web of Science

  27. A Consideration on the Function of Oil Palm Plantation Development as Land Sparing for Protected Areas (Academic Article):A Case Study in Gunung Palung National Park and its Surrounding Area in West Kalimantan, Indonesia Reviewed

    ONDA Nariaki, YANAGISAWA Shota, OTA Masahiko, IWANAGA Seiji

    FOREST ECONOMY   Vol. 70 ( 6 ) page: 1 - 21   2017

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:一般財団法人 林業経済研究所  

    「ランド・スペアリング」は、一定の土地の生産性を高めることで、その他の土地の生物多様性保全を図る概念である。ランド・スペアリングのアプローチは、今後予想される人口増加に伴う食糧安全保障と生物多様性保全との両立のあり方を検討する目的で議論されてきた。本研究ではこの概念を援用し、集約的な土地利用の1つであるアブラヤシ農園の開発が自然保護区および地域社会に与えた影響を検討することで、アブラヤシ農園のランド・スペアリングとしての機能を評価した。インドネシア、西カリマンタン州に位置するアブラヤシ農園およびグヌンパルン国立公園に隣接する集落において、60世帯を対象とした訪問面接調査を行った。その結果、アブラヤシ農園の開発に伴い、地域住民の主たる生計手段が違法伐採を含む伐採労働からアブラヤシ農園からの収入へと変化し、国立公園の森林資源保全に寄与したことが確認され、アブラヤシ農園のランド・スペアリングとしての機能が示された。一方、世帯間においてはアブラヤシ農園収入の多寡に応じた経済的格差が認められ、今後さらに拡大することが懸念された。

    DOI: 10.19013/rinrin.70.6_1

  28. 建築用木質製品利用の変遷における合板の位置づけ

    岩永青史, 都築伸行, 久保山裕史

    木材利用システム研究   Vol. 3   page: 15-18   2017

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    Language:English   Publishing type:Research paper (scientific journal)  

  29. <書評>国際資源管理認証:エコラベルがつなぐグローバルとローカル

    岩永 青史

    森林科学   Vol. 79   page: 40-40   2017

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    Language:English   Publishing type:Research paper (scientific journal)  

  30. 特集「現代インドネシアの森林をめぐる所有と利用」

    岩永 青史, 藤原 敬大

    林業経済研究   Vol. 62 ( 1 ) page: .   2016.3

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  31. Forest conservation and rehabilitation policies in Vietnam: their assessments and local responses

    Masuda M, Iwanaga S, Kaida N, Yoshino K

    Tropics   Vol. 24 ( 4 ) page: 139-140   2016

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  32. Sustainability of Timber Production by Farm Forestry in Private Forest : A Case Study in Tasikmalaya, West Java, Indonesia Reviewed

    IWANAGA Seiji

    Journal of Forest Economics   Vol. 62 ( 1 ) page: 75 - 83   2016

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:林業経済学会  

    In Java Island, Indonesia, where shows active utilization of private forest (PF) timber by timber processing industry, the relation between behaviors by the government, timber processing company, sawmill and farmer and the transition of forest area was analyzed. The most effective policy was request for acquisition of certification for a place of timber&#039;s origin. In Tasikmalaya District, the check of certification grasped the real situation of timber utilization. Meanwhile, the demand expansion of PF timber increased amount of timber production by farmers and decreased forest area. Tree planting by farmers increased forest area in 2007. However, because of continuous of purchasing price increase, timber cutting was continued at a faster rate than plantation and it decreased forest area in 2010. Furthermore, sawmills were established in associate with demand expansion and the total capacity of sawmilling was exceed timber supply in amount. As a result, sawmills fell into timber shortage. From these results, the flow &quot;decrease of natural forest area → shortage of timber supply → utilization of PF timber → increase of PF area&quot; and the existence of next scenario &quot;increase of PF timber utilization → decrease of PF area&quot; was clarified.

    CiNii Books

  33. 国産材輸出の現状と望ましい輸出形態の検討

    岩永 青史

    関東森林研究   Vol. 67 ( 1 ) page: 157-158   2016

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  34. The effect of forestland allocation to the livelihoods of local people in the North Central Coast of Vietnam: A case in Nam Dong district Reviewed

    Thi Thuy Phuong Nguyen, Masuda Misa, Iwanaga Seiji

    TROPICS   Vol. 24 ( 4 ) page: 169 - 180   2016

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:JAPAN SOCIETY OF TROPICAL ECOLOGY  

    Forestland allocation (FLA) policy in Vietnam aimed at conserving forests and improving local livelihoods. In regard to the effectiveness of FLA, some authors reported improvements in forest cover and quality, whereas others stated inappropriate implementation process and minor impacts on household income. Hence, this study examined whether disturbances in initial stage still existed, how allocated forestlands were utilized, and how FLA contributed to local livelihoods under different forest management regimes. D village of Nam Dong district, where FLA was introduced in 1995, was selected as a case, and 78 households were randomly selected for household interviews. The results revealed that shifting cultivation, once widely reported in mountainous regions, had already ceased before our survey. Natural forests allocated to groups were mainly utilized for non-wood forest product (NWFP) collection, regardless of whether those users had an allocation. Individually allocated areas were converted to acacia and recently to rubber plantations. The rotation of acacia plantation was five to seven years with intercropping cassava in the initial stage. FLA contributed to adjusting an uneven distribution of farmland and income, but the effect remained nominal. The role of FLA in income generation was limited due to small allocation area per household (1.50ha on average). Switching to rubber trend was another reason of limited income derived from FLA. Therefore NWFP played a more significant role in the household economy than plantation yields. Investment in livestock was first preference of respondents, which suggests the importance of small-scale livestock rearing in the areas facing land shortage.

    DOI: 10.3759/tropics.24.169

    Web of Science

    CiNii Books

    Other Link: https://jlc.jst.go.jp/DN/JLC/20021065888?from=CiNii

  35. Status of forest development and opportunity cost of avoiding forest conversion in Ba Be National Park, Vietnam Reviewed

    Tu Anh Nguyen, Masuda Misa, Iwanaga Seiji

    TROPICS   Vol. 24 ( 4 ) page: 153 - 167   2016

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    This study aimed to discover the status of several types of forest and based on the opportunity costs of REDD+ to identify which greenhouse gas (GHG) emission mitigation options can be implemented in different forest types in Ba Be National Park, Vietnam. From 1990 to 2000, forest in the study area faced a high rate of forest cover loss and degradation. During the next decade from 2000 to 2010, total forest cover increased gradually. However, the natural forest area still decreased. In our household survey (n=103), respondents reported that main drivers of deforestation and forest degradation in those areas were timber extraction for commercial or subsistence purposes, shifting cultivation, inadequate forest management, bribes to forest rangers, felling trees for firewood and bamboo shoots, and conversion to Mo (Manglietia conifera) and other perennial plants. There are some differences in those drivers between the three villages surveyed. From 2000 to 2010, several land use changes such as the conversion of poor timber forest into recovered timber forest, medium timber forest into poor timber forest and planted forest into bare land with scattered trees caused more than 8,000tCO2e emissions per year. In regard to opportunity costs, most of the avoidance options have negative opportunity costs, which mean potential benefits. Within the current carbon market price, the avoidance can be applied to reduce approximately 7,900tCO2e emissions (about 98% reduction) per year in the three communes surveyed.

    DOI: 10.3759/tropics.24.153

    Web of Science

    CiNii Books

    Other Link: https://jlc.jst.go.jp/DN/JLC/20021065932?from=CiNii

  36. Prospects and challenges of reducing emissions from deforestation and forest degradation in Central Kalimantan Province, Indonesia Reviewed

    Motoshi Hiratsuka, Shyam Krishna Paudel, Seiji Iwanaga, Hirofumi Yaginuma, Amano Masahiro

    International Journal of Environment and Sustainable Development   Vol. 15 ( 1 ) page: 49 - 66   2016

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    Indonesia is rapidly progressing in terms of reducing emissions from deforestation and forest degradation (REDD plus) preparedness. We carried out a detailed feasibility study to develop and implement a new mechanism of the REDD plus for Central Kalimantan, a REDD pilot province of Indonesia. Several REDD plus activities were implemented in Paduran Mulia Village of Central Kalimantan. Remote sensing data was used to detect land use changes in the study area and was complemented by ground inventory to assess the actual carbon stock of the forest. The study found that land cover and uses have significantly been changed since last 30 years. Considering 2008 as a base year, we estimated that the total emission reduction would be 9,344 Gg CO2 in the next 20 years (about 450 Gg CO2/year). The results indicated the optimistic scenario with significant emission reduction if the proposed REDD plus activities were implemented successfully.

    DOI: 10.1504/IJESD.2016.073334

    Scopus

  37. Effect of Oil Palm Plantation Development in Establishment Phase on Local People's Livelihood Strategies and Perception of Land Tenure in Peat Land : A Case Study in Kapuas District, Central Kalimantan, Indonesia Reviewed

    IWANAGA Seiji, ANAKURA Natsuko, ONDA Nariaki, AMANO Masahiro

    Journal of Forest Economics   Vol. 61 ( 1 ) page: 75 - 85   2015

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:林業経済学会  

    Oil palm plantation has a negative impact on Global warming on particularly on peat land that is not suitable for agriculture. This survey focuses on two factors that change the source of income and economic condition of the local people in Central Kalimantan where peat land abounds, and the perception that oil palm plantation requires conversion of custom land where traditionally utilized by them. It also clarifies the impact of the establishment phase of oil palm plantations on employment and the local society. And, based on the results, we discuss desirable livelihood strategy for local people. Findings of the survey confirm that the main source of income for young households is oil palm plantations that engage them as labor while the older households&#039; income come from managing small private rubber plantations. However, households engaged as labor in oil palm plantations also wished to own rubber plantations and were concerned about losing custom land that the oil palm plantation companies were buying. The local people are largely dependent on uncertain plantation labor for their livelihood, and as they do not have many alternative sources of income, it is necessary for them to lower any risk by retaining custom land, which is one of their important sources of income.

    CiNii Books

  38. Carrying capacity approach to forest management in developing countries

    Masuda M, Iwanaga S, Shiga K, Prasetyo L, Damayanti E

    The international forestry review: Sustaining forests, sustaining people (Abstract of XXIV IUFRO World Congress, 5-11 October 2014, Salt Lake City, USA)   Vol. 16 ( 5 ) page: 464-465   2014

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  39. Circumstances and Possibility of Entry into Melaleuca (Melaleuca cajupti) Timber Market in Indonesia : Toward Generation of New Income Source for Local People in the REDD+ Project Reviewed

    IWANAGA Seiji, HIRATSUKA Motoshi, YAGINUMA Hirofumi

    Journal of Forest Economics   Vol. 60 ( 3 ) page: 25 - 36   2014

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    To improve the livelihood of local people involved in the Reducing Emissions from Deforestation and Forest Degradation and the role of conservation, sustainable management of forests and enhancement of forest carbon stocks in developing countries (REDD+) project, we examined the necessary factors to incorporate Melaleuca (Melaleuca cajupti) timber production as a new income source. At PM Village, with Central Kalimantan as research target, we conducted Project Cycle Management (PCM) to investigate Melaleuca timber production. Findings clarified that the main problem was access to the timber market. Therefore, we conducted market surveys to search for and develop a distribution channel. We discovered two markets for Melaleuca timber; market of a small-diameter timber and a middle-diameter timber. Eventually, it became apparent that there was no room to enter the small-diameter market. In the middle-diameter market, a shortage of timber was occurring simultaneously with an increase in Melaleuca demand because the amount of timber available from Kalimantan (e.g., Meranti: Shorea spp.) had decreased. In PM Village, there were no middle-diameter trees, so forest management (i.e., silviculture) was identified as an objective for the area. Moreover, forest management in this area has become additionality of the REDD+ project. Accordingly, it is anticipated that Melaleuca grown in peatlands will generate profitable income for REDD+ projects in other peatland areas.

    CiNii Books

  40. Estimation of potential GHG emission reduction through corresponded REDD plus activities in Remote Area in Central Kalimantan, Indonesia: Case study in the Paduran Area Reviewed

    Hiratsuka M, Iwanaga S, Tsuzuki H, Yaginuma H

    Open Journal of Forestry   Vol. 4 ( 04 ) page: 338 - 348   2014

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Scientific Research Publishing, Inc.  

    DOI: 10.4236/ojf.2014.44040

    Other Link: http://www.scirp.org/journal/doi.aspx?DOI=10.4236/ojf.2014.44040

  41. <書評>日本・アジアの森林と林業労働, 信州大学森林政策学研究会編, 小池正雄・三木敦朗監修, 川辺書林, 2013年9月, 335ページ, 2,160円(税込), ISBN978-4-906529-76-6

    岩永 青史

    森林科学   Vol. 71 ( 0 ) page: .   2014

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  42. Effect on forest of employment structure and land use in transmigration village, Central Kalimantan, Indonesia : Discussion of problems in implementing REDD plus Reviewed

    Onda Nariaki, Iwanaga Seiji, Anakura Natsuko, Wijaya Chandra Irawadi, Amano Masahiro

    Japanese Journal of Forest Planning   Vol. 46 ( 2 ) page: 45 - 56   2013

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:森林計画学会  

    Large-scale forest development, natural forest harvesting, and oil palm planting have created employment opportunities for rural people in transmigration villages in Indonesia. However, large-scale forest development is expected to decline owing to the introduction of the REDD+ scheme. This study aimed to discuss the problems of implementing REDD+ from the perspective of the livelihood structure and land-use system in the PM transmigration village in Pulang Pisau District, Central Kalimantan Province. The majority of migrant workers in the village were engaged in forest development. In addition, the trend of occupations in Central Kalimantan Province was consistent with its history of forest development. In PM village, 55.3% of owned land was not utilized, and subsistence crop cultivation and rubber planting were conducted on a part of owned land. All cultivation and planting activities were conducted on owned or leased lands in the village; therefore, the surrounding national forest was not required to be cleared for cultivation or rubber-planting activities. Households engaged in migrant work and who had accumulated land abandoned by other villagers were involved in rubber-planting activities. Therefore, in the case of transmigration villages who have accumulated land through population exodus, assistance in tree crop cultivation would be effective to create a future cash income source as an alternative to forest development-related employment opportunities.

    DOI: 10.20659/jjfp.46.2_45

    CiNii Books

  43. Shift in raw materials for the wood processing industry in Java Island, Indonesia: A perspective from the post natural forest era Reviewed

    Iwanaga S, Masuda M

    TROPICS   Vol. 22 ( 3 ) page: 119 - 129   2013

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  44. Effects of contract tree farming by timber processing companies on forest resources:A case study in Tasikmalaya, West Java, Indonesia Reviewed International coauthorship

    Iwanaga S, Wijaya CI

    Proceedings of 12th Science Council of Asia Conference     page: 67 - 68   2013

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

  45. Policies and resource situations of private forests in Indonesia : A case study in Tana Toraja District, South Sulawesi Province

      ( 28 ) page: 101-112   2012.3

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  46. Trial for Local People's Forestry Establishment in Partnership with Timber Processing Company in Indonesia

      Vol. 0 ( 83 ) page: 42-47   2012.1

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  47. Effects of Contract Planting by Timber Processing Companies for Farmers : A Case Study in Tasikmalaya, West Java, Indonesia Reviewed

    IWANAGA Seiji

    Journal of Forest Economics   Vol. 58 ( 2 ) page: 14 - 22   2012

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:林業経済学会  

    In Java, where private forest area has been recently increasing, I examined the relations between Timber Processing Company B and farmers, who produce timber sourced from the private forests, through contract planting that implemented by Company B. A field survey in Tasikmalaya District, where the most contract planting was undertaken as compared to the rest of Java, revealed that, from 1999, farmers had been undertaking tree planting and harvesting according to the prices offered by the company. Because of the lack of supply control, the company resorted to contract planting. Contract planting was undertaken on both private land and government-owned agricultural estate land. The ratio of intercropping, which reflects diverse management strategies, was higher in the latter, as in private land without contract planting. Moreover, households that undertook planting on private land were likely to do so with a focus on timber production. These facts imply that contract planting on private land is quite favorable for the stable supply of timber production. However, there is the risk of the company purchasing the timber at lower prices because it has discretion to decide the time of harvest and purchase price.

    CiNii Books

  48. ポスト天然林時代におけるジャワ島の木材加工産業の資源戦略と私有林の役割 Reviewed

    岩永 青史

    筑波大学     page: 1 - 82   2012

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Doctoral thesis  

  49. Production and distribution system of nipa-shingle in the Philippines Reviewed

    飯田 祥史, 岩永 青史, 増田 美砂

    Bulletin of Tsukuba University Forests   ( 27 ) page: 109 - 122   2011.3

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:筑波大学農林技術センター  

    CiNii Books

  50. Strategy of a timber processing company for ensuring raw materials and supply potential of private land: a case study in Tasikmalaya, West Java, Indonesia Reviewed

    岩永 青史, 赤羽 洋, 御田 成顕

    Bulletin of Tsukuba University Forests   ( 26 ) page: 1 - 16   2010.3

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:筑波大学農林技術センター  

    CiNii Books

  51. Preference of Farmers in a Nation-wide Afforestation Program and the Possibility to Create Private Forests : A Case Study in Wonogiri District, Central Java Reviewed

    IWANAGA Seiji, SHIGA Kaori, DAMAYANTI Ellyn K, MASUDA Misa

    Journal of Forest Economics   Vol. 55 ( 2 ) page: 1 - 9   2009

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:林業経済学会  

    This study aimed at examining what kind of people would support conversion of farmland to tree plantations under the framework of National Movement of Rehabilitation of Forests and Land, a nation-wide afforestation program started in 2003. Wonogiri district, an agricultural marginal area, was selected as the case and interviews to randomly selected participants of the program in 2003 were conducted at three villages. The results revealed that the differences in geographical conditions at village level, either flat easy-access or mountainous hard-access, did not much affect the performance of the program. Significant relations were found at the household level in: (1) gross income from non-agricultural sector and motivations and (2) motivations and arrangement of seedlings. And, it was clarified that the stakeholders, who could create private forest, were people who aimed at plantation itself and who planted according to &quot;government&#039;s manual&quot;. From these results, we concluded that to increase the rate of getting mature forest, it is necessary to decrease given incentive in order to exclude people who do not aim at plantation itself.

    CiNii Books

  52. Conservation, rehabilitation and utilization of tropical forest for the future generation: the session report from the 119th annual congress of the Japanese Forest Society

    Japanese journal of international forest and forestry   ( 72 ) page: 45-49   2008.6

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  53. Production and distribution of nipa shingles in the Philippines:Case study in Camarines Norte province, Bicol Region

    IWANAGA SEIJI, IIDA YOSHIFUMI

    The Japanese Forest Society Congress   Vol. 119 ( 0 ) page: 198-198   2008

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Books 12

  1. 大径材の使い方:丸太段階で強度を予測し、製材、乾燥するための技術集

    山田茂樹, 田中亘, 早舩真智, 岩永青史( Role: Contributor ,  流通・加工業での原木大径化への対応と収益性への影響)

    森林総合研究所  2021.2  ( ISBN:978-4-909941-15-2

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    Total pages:48   Responsible for pages:43-44   Language:Japanese

  2. 大径材の使い方:丸太段階で強度を予測し、製材、乾燥するための技術集

    山田茂樹, 田中亘, 早舩真智, 岩永青史( Role: Sole author ,  流通・加工業での原木大径化への対応と収益性への影響)

    森林総合研究所  2021.2 

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    Language:Japanese

  3. 森林学の百科事典

    岩永青史( Role: Contributor ,  日本の木材貿易の構造変化)

    丸善  2021.1 

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    Total pages:704   Responsible for pages:344-345   Language:Japanese

  4. 森林学の百科事典

    岩永青史( Role: Contributor ,  日本の木材貿易の構造変化)

    丸善  2021.1 

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    Language:Japanese

  5. 現代日本の私有林問題

    早舩真智, 岩永青史( Role: Contributor ,  第3節林産物市場と木材産業の展開)

    J-FIC  2020.11  ( ISBN:978-4889652635

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    Total pages:456   Responsible for pages:60-74   Language:Japanese Book type:Scholarly book

  6. 現代日本の私有林問題

    早舩真智, 岩永青史( Role: Sole author ,  第3節林産物市場と木材産業の展開)

    J-FIC  2020.11 

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    Language:Japanese

  7. 諸外国の森林投資と林業経営

    岩永 青史( Role: Contributor ,  第4章 インドネシアにおける農民造林)

    海青社  2019.9 

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    Language:Japanese

  8. 最新木材工業事典:改訂版

    岩永 青史( Role: Contributor ,  第6章 認証材と合法木材の流通)

    日本木材加工技術協会  2019  ( ISBN:9784889620078

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    Total pages:179   Responsible for pages:12-13頁   Language:Japanese Book type:Dictionary, encyclopedia

  9. Research Manual Vol.3 Social Safeguards

    Furukawa T, Iwanaga S, Okabe K, Toda M( Role: Joint author)

    FFPRI  2017 

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    Language:Japanese

  10. 調査マニュアル Vol.3 社会セーフガード解説.

    岩永青史, 古川拓哉, 岡部貴美子, 戸田美紀( Role: Joint author)

    国立研究開発法人森林総合研究所  2017  ( ISBN:9784905304746

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    Total pages:23   Language:Japanese

  11. REDD+を解析する

    岩永 青史( Role: Joint translator ,  第4章REDD+とグローバル経済:せめぎあう力と政策的選択肢)

    CIFOR  2015  ( ISBN:9786021504635

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    Responsible for pages:51-66頁   Language:Japanese

  12. 木はお金で育つか?「森林減少と森林劣化に由来する排出削減(REDD)」に対する森林減少研究からの示唆

    岩永 青史( Role: Joint translator ,  第4章森林減少と劣化の削減のための政策選択)

    CIFOR  2008  ( ISBN:9789791412575

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    Responsible for pages:29-44頁   Language:Japanese

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MISC 16

  1. 製材業における国産大径材の利用状況 Invited Reviewed

    岩永青史, 早舩真智, 田中亘, 伊神裕司

    木材情報   Vol. 350   page: 1 - 4   2020.7

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    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)  

  2. 「ダイバーシティ推進ランチョン Workshop2019」開催報告

    竹内啓恵, 岩永青史, 木村恵, 武正憲, 玉井幸治, 片桐奈々, 塚原正美, 山川博美, 高山範理

    森林科学   Vol. 89   page: 47 - 50   2020.6

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  3. 東南アジアにおける木質面材の生産、消費、輸出入の動向 Invited

    岩永青史, 早舩真智

    木材情報   Vol. 339   page: 10 - 13   2019.8

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)  

  4. 南洋材丸太および合板をめぐる近年の動向と日本の合板産業 Invited

    岩永青史, 早舩真智

    木材情報   Vol. 338 ( 338 ) page: 16 - 19   2019.7

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Publisher:日本木材総合情報センター  

    CiNii Books

  5. 米国における建築用面材利用の歴史的展開から見る日本の合板産業 Invited

    岩永青史, 久保山裕史, 都築伸行

    木材情報   Vol. 326   page: 19 - 22   2018

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)  

  6. 建築用木質製品利用の変遷における合板の位置づけ

    岩永青史, 都築伸行, 久保山裕史

    木材利用システム研究   Vol. 3   page: 15 - 18   2017

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    Language:Japanese   Publishing type:Research paper, summary (national, other academic conference)  

  7. <書評>国際資源管理認証:エコラベルがつなぐグローバルとローカル Invited

    岩永 青史

    森林科学   Vol. 79   page: 40 - 40   2017

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    Language:Japanese   Publishing type:Book review, literature introduction, etc.  

  8. 特集「現代インドネシアの森林をめぐる所有と利用」

    岩永 青史, 藤原 敬大

    林業経済研究   Vol. 62 ( 1 ) page: 40 - 40   2016.3

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    Language:Japanese   Publisher:林業経済学会  

    CiNii Books

  9. Forest conservation and rehabilitation policies in Vietnam: their assessments and local responses

    Masuda M, Iwanaga S, Kaida N, Yoshino K

    Tropics   Vol. 24 ( 4 ) page: 139 - 140   2016

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    Language:English   Publisher:JAPAN SOCIETY OF TROPICAL ECOLOGY  

    DOI: 10.3759/tropics.24.139

  10. 国産材輸出の現状と望ましい輸出形態の検討 Reviewed

    岩永 青史

    関東森林研究   Vol. 67 ( 1 ) page: 157 - 158   2016

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)  

  11. Carrying capacity approach to forest management in developing countries Reviewed

    Masuda M, Iwanaga S, Shiga K, Prasetyo L, Damayanti E

    The international forestry review: Sustaining forests, sustaining people (Abstract of XXIV IUFRO World Congress, 5-11 October 2014, Salt Lake City, USA)   Vol. 16 ( 5 ) page: 464 - 465   2014

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    Language:English   Publishing type:Research paper, summary (international conference)  

  12. <書評>日本・アジアの森林と林業労働, 信州大学森林政策学研究会編, 小池正雄・三木敦朗監修, 川辺書林, 2013年9月, 335ページ, 2,160円(税込), ISBN978-4-906529-76-6 Invited

    岩永 青史

    森林科学   Vol. 71 ( 0 ) page: 45 - 45   2014

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    Language:Japanese   Publishing type:Book review, literature introduction, etc.   Publisher:日本森林学会  

    DOI: 10.11519/jjsk.71.0_45_1

  13. Policies and resource situations of private forests in Indonesia : A case study in Tana Toraja District, South Sulawesi Province

    岩永 青史, 増田 美砂

    筑波大学農林技術センター演習林報告   ( 28 ) page: 101 - 112   2012.3

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (bulletin of university, research institution)   Publisher:筑波大学農林技術センター  

    CiNii Books

  14. Trial for Local People's Forestry Establishment in Partnership with Timber Processing Company in Indonesia

    岩永 青史, 増田 美砂

    海外の森林と林業   Vol. 0 ( 83 ) page: 42 - 47   2012.1

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Publisher:国際緑化推進センター  

    CiNii Books

  15. Conservation, rehabilitation and utilization of tropical forest for the future generation: the session report from the 119th annual congress of the Japanese Forest Society

    岩永 青史

    Japanese journal of international forest and forestry   ( 72 ) page: 45 - 49   2008.6

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Publisher:国際緑化推進センター  

    CiNii Books

  16. Production and distribution of nipa shingles in the Philippines:Case study in Camarines Norte province, Bicol Region

    IWANAGA SEIJI, IIDA YOSHIFUMI

    The Japanese Forest Society Congress   Vol. 119 ( 0 ) page: 198 - 198   2008

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    Language:Japanese   Publishing type:Research paper, summary (national, other academic conference)   Publisher:THE JAPANESE FORESTRY SOCIETY  

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Presentations 14

  1. 中部山岳国立公園における協働による登山道整備に関する研究

    堀彰穂, 岩永青史, 原田一宏

    第133回日本森林学会年次大会  2022.3.29  日本森林学会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン(山形大学・岩手大学)   Country:Japan  

  2. ハチ追いに関わるローカルルールの地域間比較

    新開一馬, 岩永青史, 原田一宏

    第133回日本森林学会年次大会  2022.3.29  日本森林学会

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン(山形大学・岩手大学)   Country:Japan  

  3. 統計に見る木材自給率上昇への自県産材の貢献

    岩永青史

    第11回中部森林学会大会  2021.11.14  中部森林学会

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    Event date: 2021.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン(名古屋大学)   Country:Japan  

  4. 日本森林学会におけるダイバーシティ推進の取り組み Invited

    竹内啓恵, 岩永青史, 玉井幸治, 芦谷竜矢, 小田智基, 及川洋征, 片桐奈々, 木村恵, 鈴木智之, 髙田乃倫予, 武正憲, 田中浩, 南光一樹, 山川博美, 山下詠子, 高山範理

    第19回男女共同参画学協会連絡会シンポジウム  男女共同参画学協会連絡会

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    Event date: 2021.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:オンライン   Country:Japan  

  5. The challenges of K-coefficient distribution under Payment for Forest Environmental Servies (PFES) in Central Vietnam International coauthorship

    Ngoc Hoang Phan Bich, Fujiwara Takahiro, Iwanaga Seiji, Sato Noriko

    2021.3 

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    Event date: 2021.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  6. 建築用木質製品利用の変遷における合板の位置づけ Invited

    岩永青史

    日本材料学会東海支部第3回見学会・講演会  2021.1  日本材料学会東海支部

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    Event date: 2021.1

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:オンライン   Country:Japan  

  7. 合法木材をめぐる国際社会の動向とインドネシアにおける木材合法性証明システムの課題

    北山舜、原田一宏、岩永青史

    林業経済学会2020年秋季大会  2020.12  林業経済学会

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    Event date: 2020.12

    Language:Japanese  

    Venue:ウェブサイト   Country:Japan  

  8. 日本森林学会におけるダイバーシティ推進の取り組み

    竹内啓恵, 玉井幸治, 及川洋征, 岩永青史, 片桐奈々, 木村恵, 鈴木智之, 武正憲, 南光一樹, 山川博美, 高山範理

    第18回男女共同参画学協会連絡会シンポジウム  2020.10  男女共同参画学協会連絡会

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    Event date: 2020.10

    Language:Japanese  

    Venue:オンライン   Country:Japan  

  9. 人工林材へと原料転換が進むベトナムの森林資源戦略 Invited

    岩永青史

    林業経済学会2020年春季大会シンポジウム  2020.9  林業経済学会

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    Event date: 2020.9

    Language:Japanese   Presentation type:Symposium, workshop panel (nominated)  

    Venue:オンライン(名古屋大学)   Country:Japan  

  10. 木材利用に関わる政策について:木は「見た目が9割」か? Invited

    岩永 青史

    木材産業Under30研修会2019  2019.6.17 

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    Event date: 2019.6

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

  11. 木材利用に関わる政策について:木材利用を盛り上げたり盛り下げたりする制度・出来事 Invited

    岩永 青史

    木材産業Under30研修会2018  2018.6.29 

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    Event date: 2018.6

    Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

  12. Creation process, utilization, and production of private forest:A case study in South Sulawesi, Indonesia

    Iwanaga Seiji, djanto Har

    The Japanese Forest Society Congress  2009 

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    Event date: 2009

    Language:Japanese   Presentation type:Oral presentation (general)  

  13. 人工林材へと原料転換が進むベトナムの森林資源戦略 Invited

    岩永青史

    林業経済学会2020年春季大会シンポジウム  2020.9  林業経済学会

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    Language:Japanese   Presentation type:Symposium, workshop panel (nominated)  

    Venue:オンライン   Country:Japan  

  14. The challenges of K-coefficient distribution under Payment for Forest Environmental Services in Central Vietnam International coauthorship

    HOANG PHAN BICH NGOC, Fujiwara Takahiro, Iwanaga Seiji, Sato Noriko

    The Japanese Forest Society Congress  2021.5.24  THE JAPANESE FORESTRY SOCIETY

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    Language:English   Presentation type:Oral presentation (general)  

    <p>[in Japanese]</p>

    DOI: 10.11519/jfsc.132.0_229

    CiNii Research

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Research Project for Joint Research, Competitive Funding, etc. 1

  1. 要求性能に応じた木材を提供するため、国産大径材丸太の強度から建築部材の強度を予測する技術の開発

    2016.4 - 2021.3

    革新的技術開発・緊急展開事業(うち先導プロジェクト) 

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    Authorship:Coinvestigator(s)  Grant type:Other

    Grant amount:\1040000 ( Direct Cost: \800000 、 Indirect Cost:\240000 )

KAKENHI (Grants-in-Aid for Scientific Research) 8

  1. International Comparative Study on the Acceptance and Transformation of Scientific Forestry: Focusing on the Views of Field Foresters on their Work International coauthorship

    Grant number:22H03847  2022.4 - 2026.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Coinvestigator(s)  Grant type:Competitive

    Grant amount:\1722000 ( Direct Cost: \1400000 、 Indirect Cost:\322000 )

  2. ポリティカル・フォレストの再構築:「森林」領域を空間編成する社会経済的要因は何か

    Grant number:21H03709  2021.4 - 2026.3

    科学研究費助成事業  基盤研究(B)

    藤原 敬大, 岩永 青史, 大田 真彦, 御田 成顕

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    Authorship:Coinvestigator(s) 

    SDGsはあらゆる種類の森林の持続可能な森林経営の促進を掲げている。統一的な定義を用いたFAOの世界森林資源評価の一方、各国の「森林」の定義は多様である。社会経済システムが原初的空間を形式的に取り込む中で生じた矛盾を実質的に包摂する過程で、不均等で異質性をはらむ「領域」が空間編成される。本研究は歴史や社会経済体制、森林の所有形態が異なる熱帯アジアと日本の事例の比較を通じて、各国で「森林」がどのように再構築され、それらの空間の領域的再編を促す社会・経済的要因は何かという学術的な問いに答え、生態的に指定された森林と行政的に指定された森林を区別するポリティカル・フォレストの概念の系統化に貢献する。

  3. Comparative study between Japan and European countries on forest management entities altering owners

    Grant number:19KK0027  2019.10 - 2023.3

    Grants-in-Aid for Scientific Research  Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

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    Authorship:Coinvestigator(s) 

  4. 所有者に代わる森林の管理主体に関する日欧比較研究 International coauthorship

    Grant number:JP19KK0027  2019.4 - 2023.3

    日本学術振興会  科学研究費助成事業・国際共同研究加速基金(国際共同研究強化(B)) 

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    Authorship:Coinvestigator(s)  Grant type:Competitive

    Direct Cost: \2400000 、 Indirect Cost:\720000 )

  5. ベトナムの政策型人工林増加に対する木材加工産業の原木調達戦略 International coauthorship

    Grant number:JP18K18272  2018.4 - 2023.3

    日本学術振興会  科学研究費助成事業・若手研究 

    岩永青史

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\2990000 ( Direct Cost: \2300000 、 Indirect Cost:\690000 )

  6. ベトナムの政策型人工林増加に対する木材加工産業の原木調達戦略

    Grant number:18K18272  2018.4 - 2023.3

    科学研究費助成事業  若手研究

    岩永 青史

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    Authorship:Principal investigator 

    Grant amount:\2990000 ( Direct Cost: \2300000 、 Indirect Cost:\690000 )

    当該年度において、ベトナム北中部地域の住民植林を行っている世帯に対して聞き取り調査を行い、輸入材規制および天然林伐採禁止という一連の政策が世帯の土地利用・人工林経営における施業と人工林材の需給の動向に与えた影響を解明する予定であった。ベトナム国内の共同研究者との連携によって、現地聞き取り調査を実施することができたが、前年に引き続き同様にコロナ感染症拡大の影響によりベトナムへの渡航が困難であったため、、研究代表者が現地を訪問し調査することが叶わず、最終的な分析ができていない状態にある。したがって、研究期間の再延長申請を行った。
    共同研究者との連携によって、約100世帯への聞き取り調査を実施した。研究代表者が渡航できなかったため、聞き取り調査に先立ち、共同研究者と綿密な打ち合わせを行い、調査対象世帯の選定、詳細な聞き取り項目の設定に時間をかけた。
    また、既に調査を行った部分について分析を進め、投稿論文1報が掲載された。
    2022年度においては、可能であれば渡航し、現地において質的な聞き取りを行い、その上で前年度調査結果の分析を行い、成果を公表する予定である。

  7. Creation of community forestry for promoting livelihood improvement of local people under international climate change policy and forest conservation policy

    Grant number:15H05122  2015.4 - 2019.3

    Harada Kazuhiro

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    Authorship:Coinvestigator(s) 

    Southeast and South Asia had various forms of CF in each region, with closely related with policies. CF in Vietnam and Indonesia was related with national parks, and CF in Indonesia was related with certified wood production under the forest certification system. CF in Cambodia was related with conventional forest management. CF in Cambodia was related with international climate change mitigation policies such as REDD +. In some cases, CF had the benefit of providing local people with necessary timbers etc. on a daily basis. However, while CF has not properly provided benefits to local people, and wildlife protection has been emphasized over CF, it was cleared that in some cases local people may not have benefited from CF.

  8. インドネシアの木材加工産業における原木調達戦略の変化が森林経営に与える影響

    2011.4 - 2014.3

    日本学術振興会  科学研究費補助金,特別研究員奨励費 

    岩永 青史

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    Authorship:Principal investigator  Grant type:Competitive

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Teaching Experience (On-campus) 11

  1. 環境問題と人間

    2021

  2. 森林社会共生学

    2020

  3. 卒業論文研究

    2020

  4. 博士論文研究

    2020

  5. 修士論文研究

    2020

  6. 生命農学演習

    2020

  7. 森林資源産業化特論

    2020

  8. 森林社会学特論

    2020

  9. 生物環境科学実験実習

    2020

  10. 生物情報処理演習

    2020

  11. 情報リテラシー入門

    2020

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Teaching Experience (Off-campus) 15

  1. 生物環境科学実験実習

    2021.9 Nagoya University)

  2. 環境問題と人間

    2021.4 Nagoya University)

  3. 森林社会共生学

    2020.10 名古屋大学農学部)

  4. 生物情報処理演習

    2020.10 名古屋大学大学院生命農学研究科)

  5. 森林社会学特論

    2020.10 名古屋大学大学院生命農学研究科)

  6. 森林資源産業化特論

    2020.4 名古屋大学大学院生命農学研究科)

  7. 情報リテラシー

    2020.4 名古屋大学農学部)

  8. 熱帯林保全論

    2013.4 Waseda University)

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    Level:Undergraduate (specialized)  Country:Japan

  9. 熱帯林保全論

    2013.4 早稲田大学人間科学部)

  10. 情報リテラシー II

    東洋大学ライフデザイン学部)

  11. 情報リテラシー I

    東洋大学ライフデザイン学部)

  12. 地域文化B:マレー・インドネシア語とインドネシアの社会と文化

    東洋大学国際地域学部)

  13. 国際技術交流論

    筑波大学生物資源学類)

  14. 日本語研修コース

    ボゴール農科大学(インドネシア共和国 ))

  15. 社会経済学フィールド基礎実習

    筑波大学生物資源学類)

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Social Contribution 1

  1. 木材利用に関わる政策

    Role(s):Lecturer

    瑞陵高校  2020.11

Academic Activities 7

  1. 論文査読 International contribution

    Role(s):Peer review

    日本熱帯生態学会  2022.3

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    Type:Academic society, research group, etc. 

  2. 論文査読 International contribution

    Role(s):Peer review

    Society &Natural Resources  2021.12

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    Type:Academic society, research group, etc. 

  3. 論文査読

    Role(s):Peer review

    日本森林学会  2021.11

  4. 論文査読 International contribution

    Role(s):Peer review

    日本森林学会  2021.8 - 2021.12

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    Type:Academic society, research group, etc. 

  5. 論文査読 International contribution

    Role(s):Peer review

    JARQ(JIRCAS)  2020.8 - 2020.12

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    Type:Peer review 

  6. 論文査読 International contribution

    Role(s):Peer review

    日本森林学会  2020.8 - 2020.9

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    Type:Peer review 

  7. 論文査読 International contribution

    Role(s):Peer review

    Environmental conservation  2020.5 - 2020.8

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