会议论文详细信息
8th International Symposium of the Digital Earth
Road-networks, a practical indicator of human impacts on biodiversity in Tropical forests
地球科学;计算机科学
Hosaka, T.^1 ; Yamada, T.^2 ; Okuda, T.^2
Department of Tourism Sciences, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji, Tokyo, 1920397, Japan^1
Graduate School of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima, 739-8521, Japan^2
关键词: Aerial Photographs;    Biodiversity surveys;    Density of road network;    Forest biodiversity;    Forest degradation;    Remote sensing approaches;    Remote sensing techniques;    Tropical rain forest;   
Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/18/1/012092/pdf
DOI  :  10.1088/1755-1315/18/1/012092
学科分类:计算机科学(综合)
来源: IOP
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【 摘 要 】

Tropical forests sustain the most diverse plants and animals in the world, but are also being lost most rapidly. Rapid assessment and monitoring using remote sensing on biodiversity of tropical forests is needed to predict and evaluate biodiversity loss by human activities. Identification of reliable indicators of forest biodiversity and/or its loss is an urgent issue. In the present paper, we propose the density of road networks in tropical forests can be a good and practical indicator of human impacts on biodiversity in tropical forests through reviewing papers and introducing our preliminary survey in peninsular Malaysia. Many previous studies suggest a strong negative impact of forest roads on biodiversity in tropical rainforests since they changes microclimate, soil properties, drainage patterns, canopy openness and forest accessibility. Moreover, our preliminary survey also showed that even a narrow logging road (6 m wide) significantly lowered abundance of dung beetles (well-known bio-indicator in biodiversity survey in tropical forests) near the road. Since these road networks are readily to be detected with remote sensing approach such as aerial photographs and Lider, regulation and monitoring of the road networks using remote sensing techniques is a key to slow down the rate of biodiversity loss due to forest degradation in tropical forests.

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