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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0109881
论文题名:	Unmanned Aerial Survey of Fallen Trees in a Deciduous Broadleaved Forest in Eastern Japan
作者:	Tomoharu Inoue; Shin Nagai; Satoshi Yamashita; Hadi Fadaei; Reiichiro Ishii; Kimiko Okabe; Hisatomo Taki; Yoshiaki Honda; Koji Kajiwara; Rikie Suzuki
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-10-3
卷:	9, 期:10
语种:	英语
英文关键词:	Trees ; Forests ; Forest ecology ; Ecosystems ; Eyes ; Biodiversity ; Dendrology ; Biogeochemistry
英文摘要:	Since fallen trees are a key factor in biodiversity and biogeochemical cycling, information about their spatial distribution is of use in determining species distribution and nutrient and carbon cycling in forest ecosystems. Ground-based surveys are both time consuming and labour intensive. Remote-sensing technology can reduce these costs. Here, we used high-spatial-resolution aerial photographs (0.5–1.0 cm per pixel) taken from an unmanned aerial vehicle (UAV) to survey fallen trees in a deciduous broadleaved forest in eastern Japan. In nine sub-plots we found a total of 44 fallen trees by ground survey. From the aerial photographs, we identified 80% to 90% of fallen trees that were >30 cm in diameter or >10 m in length, but missed many that were narrower or shorter. This failure may be due to the similarity of fallen trees to trunks and branches of standing trees or masking by standing trees. Views of the same point from different angles may improve the detection rate because they would provide more opportunity to detect fallen trees hidden by standing trees. Our results suggest that UAV surveys will make it possible to monitor the spatial and temporal variations in forest structure and function at lower cost.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0109881&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/18548
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0109881.PDF（5991KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Department of Environmental Geochemical Cycle Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan;Department of Environmental Geochemical Cycle Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan;Department of Forest Entomology, Forestry and Forest Products Research Institute (FFPRI), Tsukuba, Ibaraki, Japan;Department of Environmental Geochemical Cycle Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan;Department of Environmental Geochemical Cycle Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan;Department of Forest Entomology, Forestry and Forest Products Research Institute (FFPRI), Tsukuba, Ibaraki, Japan;Department of Forest Entomology, Forestry and Forest Products Research Institute (FFPRI), Tsukuba, Ibaraki, Japan;Center of Environmental Remote Sensing, Chiba University, Chiba, Japan;Center of Environmental Remote Sensing, Chiba University, Chiba, Japan;Department of Environmental Geochemical Cycle Research, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan

Recommended Citation:

Tomoharu Inoue,Shin Nagai,Satoshi Yamashita,et al. Unmanned Aerial Survey of Fallen Trees in a Deciduous Broadleaved Forest in Eastern Japan[J]. PLOS ONE,2014-01-01,9(10)

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