研究者詳細 - 山本　一清

論文 - 山本　一清

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Integrating personal laser scanning with uncrewed aerial vehicle-based photogrammetry or laser scanning for accurate stem volume estimation in temperate coniferous forests. 査読有り国際誌

Hoshikawa, T., Suzuki, S., Yajima, J., Mochizuki, H., & Yamamoto, K.

Journal of Forest Research 29 巻 ( 5 ) 頁： 1 - 9 2024年4月

深層学習を用いたUAV空撮画像からの植栽木自動確認手法の開発 ―撮影時期ごとの検出精度の検討― 査読有り

大槻峻介, 山本一清

日本森林学会誌 106 巻 ( 2 ) 頁： 31 - 36 2024年4月

The penetration rate of laser pulses transmitted from a small-footprint airborne LiDAR: a case study in closed canopy, middle-aged pure sugi (Cryptomeria japonica D. Don) and hinoki cypress (Chamaecyparis obtusa Sieb. et Zucc.) stands in Japan. 査読有り

Tomoaki Takahashi, Kazukiyo Yamamoto, Yosuke Miyachi, Yoshimichi Senda, Masashi Tsuzuku

Journal of Forest Research 11 巻 ( 2 ) 頁： 117-123 2006年4月

Predicting individual stem volumes of sugi (Cryptomeria japonica D. Don) plantations in mountainous areas using small-footprint airborne LiDAR 査読有り

Tomoaki Takahashi, Kazukiyo Yamamoto, Yoshimichi Senda, Masashi Tsuzuku

Journal of Forest Research 10 巻 ( 4 ) 頁： 305-312 2005年8月

Estimating individual tree heights of sugi (Cryptomeria japonica D. Don) plantations in mountainous areas using small-footprint airborne LiDAR 査読有り

Tomoaki Takahashi, Kazukiyo Yamamoto, Yoshimichi Senda, Masashi Tsuzuku

Journal of Forest Research 10 巻 ( 2 ) 頁： 135-142 2005年4月

記述言語：英語掲載種別：研究論文（学術雑誌）

Recently, it was shown that individual tree heights could be accurately estimated using small-footprint airborne light detection and ranging (LiDAR) remote sensing. Because most of the areas studied previously were limited to flat terrain, we investigated the accuracy of LiDAR-derived individual tree height estimates for different types of topographical features in mountainous forests with a steeper and more complex topography. Several middle-aged (40–50 years old) sugi (Cryptomeria japonica D. Don) plantations are found in the mountainous regions in Japan; hence, we chose 48-year-old sugi plantations to investigate the accuracy of these estimates. The surveyed area was divided into three types of topographical features; steep slope (mean slope SD; 37.6° 5.8°), gentle slope (15.6° 3.7°), and gentle yet rough terrain (16.8° 7.8°). Before estimating tree heights, the number of detected trees within each topographical feature was researched. In each of these terrains, the percentage of trees detected correctly was 74%, 86%, and 92%; the average error between LiDAR-derived and field-measured tree heights was 0.227 m, 0.473 m, and 0.183 m; and the accuracy of the
LiDAR-derived tree height estimates, given as root mean square error (RMSE), was 0.901 m, 0.846 m, and 0.576 m,
respectively. Consequently, the procedure presented in this
study could detect most canopy trees and estimate individual tree heights with an accuracy better than 1 m, even in a forest with a mean slope angle of approximately 38°; thus, indicating that small-footprint airborne LiDAR will be a useful tool for accurately estimating the heights of individual canopy trees in sugi plantations in mountainous
areas.

Influence of Topographic Conditions on Teak Growth Performance in Mountainous Landscapes of Lao PDR 査読有り国際共著

Vongkhamho Simone, Imaya Akihiro, Yamamoto Kazukiyo, Takenaka Chisato, Yamamoto Hiroyuki

FORESTS 13 巻 ( 1 ) 2022年1月

Comparison of models for estimating stem surface area of coniferous trees grown in old-growth natural forests 査読有り

Inoue Akio, Koyama Ryota, Koshikawa Kazuki, Yamamoto Kazukiyo

JOURNAL OF FOREST RESEARCH 26 巻 ( 1 ) 頁： 1 - 6 2021年1月

Correlations among Tree Quality, Stand Characteristics, and Site Characteristics in Plantation Teak in Mountainous Areas of Lao PDR

Vongkhamho Simone, Imaya Akihiro, Takenaka Chisato, Yamamoto Kazukiyo, Yamamoto Hiroyuki

FORESTS 11 巻 ( 7 ) 2020年7月

地上レーザスキャナによる樹高推定のための望高法の改良査読有り

越河一樹・太田徹志・溝上展也・山本一清・井上昭夫

日本森林学会誌 102 巻 ( 2 ) 頁： 133 - 138 2020年4月

Assessing spatially distributed infiltration capacity to evaluate storm runoff in forested catchments: Implications for hydrological connectivity

Miyata Shusuke, Gomi Takashi, Sidle Roy C., Hiraoka Marino, Onda Yuichi, Yamamoto Kazukiyo, Nonoda Toshiro

SCIENCE OF THE TOTAL ENVIRONMENT 669 巻頁： 148 - 159 2019年6月

航空機LiDARによる単木樹種分類手法の開発査読有り

中武修一,山本一清,吉田夏樹,山口　温,宇野女草太

日本森林学会誌 100 巻 ( 5 ) 頁： 149-157 2018年12月

航空機LiDARによる森林計測手法招待有り査読有り

山本一清

レーザー研究 44 巻 ( 5 ) 頁： 326-330 2016年5月

Using airborne LiDAR to determine total sapwood area for estimating stand transpiration in plantations 査読有り

Takami Saito, Kazukiyo Yamamoto, Misako Komatsu, Hiroki Matsuda, Shuji Yunohara, Hikaru Komatsu, Makiko Tateishi, Yang Xiang, Kyoichi Otsuki and Tomo'omi Kumagai

Hydrological Processes 29 巻 ( 24 ) 頁： 5071-5087 2015年11月

Estimation of relative illuminance within forest using small-footprint airborne LiDAR 査読有り

Yamamoto, K., Murase, Y., Etou, C. and Shibuya, K.

Journal of Forest Research 20 巻 ( 3 ) 頁： 321-327 2015年3月

Applicability of the hemispherical photography to leaf area index estimation in a stand of bamboo, Phyllostachys pubescens 査読有り

Inoue A, Yamamoto K, Mizoue N, Sakuta K, Otsuki K

Journal of Forest Planning 19 巻 ( 2 ) 頁： 53-59 2014年

帯状伐採地における光環境の簡単な推定モデル査読有り

井上昭夫, 高岡華子, 溝上展也, 太田徹志, 作田耕太郎, 山本一清

日本森林学会誌 95 巻 ( 5 ) 頁： 245-252 2013年10月

A method for estimating the stand density in an even-aged pure stand using hemispherical photography 査読有り

Akio Inoue and Kazukiyo Yamamoto

Journal of Forest Planning 19 巻頁： 27-29 2013年

デジタルカメラとスキャナーを用いたヒノキ樹冠のシュートフェノロジーおよび個葉生理活性の観測査読有り

増井僚,小林元, 山本一清,井手玲子

中部森林研究 60 巻頁： 43-44 2012年3月

Relationships of light environment to stand attributes in a stand of bamboo, Phyllostachys pubescens 査読有り

Akio Inoue, Haruka Tateishi, Kotaro Sakuta, Kazukiyo Yamamoto, Nobuya Mizoue, Fumiaki Kitahara

Ecological Engineering 38 巻 ( 1 ) 頁： 135-139 2012年1月

Estimation of mean tree height using small-footprint airborne LiDAR without a digital terrain model 査読有り

Kazukiyo Yamamoto, Tomoaki Takahashi, Yousuke Miyachi, Naoto Kondo, Shinichi Morita, Motohiko Nakao, Takashi Shibayama, Yoshiyuki Takaichi, Masashi Tsuzuku and Naoaki Murate

Journal of Forest Research 16 巻 ( 6 ) 頁： 425-431 2011年12月

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