The regional distribution regularity of landslides and their effects on the environments in the Three Gorges Reservoir Region, China |
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Authors: | He Keqiang Yu Guangming and Li Xiangran |
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Institution: | (1) Department of Civil Engineering, Qingdao Technological University, 266033 Qingdao, Shandong, People’s Republic of China;(2) Yantai University, Yantai, Shandong, People’s Republic of China |
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Abstract: | On the basis of research and analysis of the landslide system of the Three Gorges Reservoir area, this paper systematically
analyzes and studies the temporal–spatial distribution law of landslides of this reservoir area and their impacts on environment
of this area. The paper puts forward that the temporal–spatial distribution of this area’s landslides is mainly controlled
by lithologic characters of strata, geological structure, valley landscape, and types of bank slope structure; landslide deformation
and failure have such characteristics as simultaneity, laggardness, cyclical instability, and stage. Besides, the paper systematically
analyzes and studies the main impacts of landslide on environment and points out that landslides and collapses will bring
about relatively serious impacts on relocation and layout of cities and towns along the banks. These impacts mainly include
the increase of relocation investment, number of migrants, and compensation for losses. Much attention and evaluation should
be paid to the impacts of Xintan Landslide and Lianziya Landslide—large landslides near the Dam—on the construction and safety
of the Three Gorges Project. However, landslides have relatively small impacts on shipping and reservoir capacity. The above-mentioned
research is of great guiding significance for the construction of the Three Georges Project, planning and construction of
cities and towns along the banks, and protection of geological environment. |
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Keywords: | Landslides Effect Environments The Three Gorges Reservoir Region China |
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