Faculty Profiles - TANIKAWA, Hiroki

Toward a low carbon-dematerialization society Reviewed

Shi Feng, Huang Tao, Tanikawa Hiroki, Han Ji, Hashimoto Seiji, Moriguchi Yuichi

Journal of Industrial Ecology Vol. 16 ( 4 ) page： 493 - 505 2012.8

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

Rapid industrialization and urbanization has been occurring in China since the introduction of the opening-up policy in 1978. The demands of building and infrastructure construction have increased rapidly, especially in the transportation and housing sectors in China. Large amounts of construction materials have been required in building construction and maintenance of the railway and road systems, especially steel and cement. Continued cement and steel production will require heavy raw material resource consumption and will emit a great deal of carbon dioxide (CO 2). This study forecasts future steel and cement demand and related resource consumption and CO 2 emissions for building and transportation infrastructure based on a material flow analysis of China. Furthermore, the effect of prolonging the lifetime of building and transportation infrastructure is appraised. The results indicate that building and transportation infrastructure will increase sharply through 2030. Although the demand for new construction will then decrease, steel and cement consumption will remain at a high level through 2050 because these are needed to maintain roads and railways. I

DOI： 10.1111/j.1530-9290.2012.00523.x

経年GISデータベースを用いた道路構造物の物質量推計に関する研究 Reviewed

Analysis of Material Stock Accumulated in Residential Building & Transport Infrastructures and its Regional Disparity in China Reviewed

Licheng ZHENG, Ji HAN, Hiroki TANIKAWA

Journal of Environmental Information Science Vol. 40 ( 5 ) page： 51-60 2012.4

早川容平, 韓驥, 谷川寛樹

環境情報科学 = Environmental information science Vol. 40 ( 4 ) page： 73 2012.1

標高の変化に基づく土石移動量の推計に関する研究 Reviewed

黒岩史, 韓驥, 谷川寛樹

環境情報科学 = Environmental information science Vol. 40 ( 4 ) page： 66 2012.1

名古屋都市圏における建設系排出物の地域循環圏構築に関する基礎的研究 Reviewed

三宅悠介, 奥岡桂次郎, 韓驥, 白川博章, 谷川寛樹

環境情報科学 = Environmental information science Vol. 40 ( 4 ) page： 63 2012.1

日本全国の橋梁の物質ストックの推計に関する研究 Reviewed

田中健介, 奥岡桂次郎, 韓驥, 白川博章, 谷川寛樹

環境情報科学 = Environmental information science Vol. 40 ( 4 ) page： 70 2012.1

人工林管理と木造住宅の炭素固定効果の空間分析 Reviewed

有川美穂, 韓驥, 白川博章, 谷川寛樹

環境情報科学 = Environmental information science Vol. 40 ( 4 ) page： 67 2012.1

ヒートアイランド緩和策による影響の評価 Reviewed

鬼頭祥平, 韓驥, 白川博章, 谷川寛樹

環境情報科学 = Environmental information science Vol. 40 ( 4 ) page： 64 2012.1

MSIASMを用いた地域の持続可能性評価 : 日本の都道府県を対象としたケーススタディ Reviewed

鬼頭祐介, 韓驥, 白川博章, 谷川寛樹

環境情報科学 = Environmental information science Vol. 40 ( 4 ) page： 53 2012.1

Going beyond energy accounting for sustainability: Energy, fund elements and the economic process Reviewed

Kozo Mayumi and Hiroki Tanikawa

Energy Vol. 37 ( 1 ) page： 18-26 2012.1

Going beyond energy accounting for sustainability: Energy, fund elements and the economic process Reviewed

Kozo Mayumi, Hiroki Tanikawa

ENERGY Vol. 37 ( 1 ) page： 18 - 26 2012.1

Language：English Publishing type：Research paper (scientific journal) Publisher：PERGAMON-ELSEVIER SCIENCE LTD

The main purpose of this paper is to examine to what extent the widely used energy accounting schemes are useful for dealing with sustainability issues in view of Georgescu-Roegen's production process and its implications for the evolutionary aspects of the economic process. The first part critically examines the concept of "net energy" in relation to material elements produced and consumed in the economic process in light of Georgescu-Roegen's bioeconomics. The first part also considers the issue of what is produced in the economic process and emphasizes the importance of matter in bulk. The second part first compares the theoretical basis of embodied energy analysis (EEA) from the point of view of Piero Sraffa, a point of view not examined by Georgescu-Roegen. The second part also examines EEA critically in terms of Georgescu-Roegen's flow-fund model and compares Sraffa's analysis and Georgescu-Roegen's flow-fund model. (C) 2011 Elsevier Ltd. All rights reserved.

DOI： 10.1016/j.energy.2011.04.050

Future Scenario Analysis of the Demand for Urban Structural Material Stock in Each Prefecture

ONISHI Akio, KAWAMURA Naoyuki, OKUOKA Keijiro, SHI Feng, TANIKAWA Hiroki

Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) Vol. 68 ( 5 ) page： I_1 - I_13 2012

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers

From the perspective of the finite resources of nature, transition to a stock-based society that reduces the amount of material input and waste is expected in the future. The material cycle in the construction sector is large; thus, it is essential that the material flow in this sector be reduced in order to reduce environmental impacts. Further, in order to understand the trends in the material flow of the construction sector, it is necessary to understand the future demand for material stock on the basis of social and economic factors. In this study, we focus on urban structures and organize the factors affecting the demand for existing structures. Moreover, we estimate future demand for urban structural material stock in each prefecture for each of the multiple scenarios that reflect different social perspectives. The result obtained from the estimation indicates that the reduction in urban structural material stock from 2000 to 2050 was most limited under the "urban concentration scenario" as compared with the other scenarios-BAU and dispersed settlement. Further, there was a substantial increase in the urban structural material stock per capita under this scenario during same period, while there was a decrease in this stock under the other two scenarios.

DOI： 10.2208/jscejer.68.i_1

CiNii Research

中国の土地利用変化による建築マテリアル消費に関する研究:社会経済分析－社会経済分析と地理空間分析を用いて Reviewed

HOU Wanxin, LIANG Hanwei, 韓驥, 谷川寛樹

環境情報科学論文集 Vol. 26 ( 0 ) page： 43-48 2012

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

本研究は中国における国内マテリアル消費量を算出し、1996年から2009年の間にマテリアル消費量の駆動力を検討するためにインデックス分解分析を行った。また、土地利用の変化と国内マテリアル消費量の関係を推定するために、セミパラメトリック分析を行った。結果として、以下のように挙げられる：（1）一人当たりのGDPの寄与率は102.5％に達し、それは建築マテリアル消費増加の主な原因だった。（2）建築マテリアル消費の増加は農地から都市への転換の増加につながる理由の一つであるが、水、草原や湿地から都市へ変換は減少している。

DOI： 10.11492/ceispapers.ceis26.0_43

THE STUDY ON OUTPUT MATERIALS FROM CONSTRUCTION SECTOR IN AICHI, GIFU, MIE PREFECTURES TOWARDS A SOUND MATERIAL-CYCLE BLOCK

OKUOKA Keijiro, MIYAKE Yusuke, ONISHI Akio, HAN Ji, SHIRAKAWA Hiroaki, TANIKAWA Hiroki

Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) Vol. 68 ( 6 ) page： II_147 - II_154 2012

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers

In recent years, a resource-circulating society has gained more attention while the concept of regional recycling society also emerged. Regional infrastructure development produces large amount of construction wastes. Effort to be a regional resource-circulating society will be an effective counter measure to an efficient resource use. In this study, the computational model to go to the regional resource-circulating society is built and estimation of supply and demand of concrete material is mainly focused and done by detail spatial analysis and future projection. As a result, there were three zones in three prefectures to circulate concrete block within 20km.

DOI： 10.2208/jscejer.68.ii_147

CiNii Research

木造住宅の寿命変化による木材需給と炭素固定量への影響に関する研究ー地理情報を用いた和歌山県域でのケーススタディー Reviewed

有川美穂，妙中佐由理，谷川寛樹

土木学会論文集G Vol. 67 ( 6 ) page： 513-522 2011.10

東日本大震災により失った建設ストックの推計 Invited Reviewed

平川隆之，黒岩史，鬼頭祐介，田中健介，谷川寛樹

日本LCA学会誌 Vol. 7 ( 4 ) page： 374-378 2011.10

Analysis of driving forces behind diversified carbon dioxide emission patterns in regions of the mainland of China Reviewed

Xin Tian, Hidefumi Imura, Miao Chang, Feng Shi, Hiroki Tanikawa

FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING IN CHINA Vol. 5 ( 3 ) page： 445 - 458 2011.9

Language：English Publishing type：Research paper (scientific journal) Publisher：HIGHER EDUCATION PRESS

China has large regional disparities in carbon dioxide CO2 emissions with economic development among its 31 provincial mainland regions. This paper investigates these disparities in CO2 emission patterns and identifies the factors underlying the differences. Results show that the 30 study China's mainland provinces (Tibet not included) can be divided into seven groups with three typical CO2 emission patterns. Index decomposition results indicate that changes in economic development, the industrial sector, and technology contribute far more to increased CO2 emissions than do population, energy structure, and other sectors. Close inspection reveals that different industry structures and technology contribute greatly to the differences observed in CO2 emissions between provinces with similar economic output. This study highlights the importance of region-specific industrial structure adjustment policies, especially for regions transitioning to heavy industry and for those still in the primary stages of industrialization. The potential application of a domestic carbon emissions trading system, to encourage regional investment in updated technology, is also discussed.

DOI： 10.1007/s11783-011-0330-6