Abstract
The spatial database of landslides in Fengdu County of the reservoir region of the Three Gorges project (TGP) on the Yangtze River was compiled from a variety of different sources including field investigations on landslides, existing catalogues and archives on landslides, reports of meteorological events and human engineering activities that triggered slope failures. The major factors that are found to have affected the slope stabilities are outlined, and an assessment and zonation of landslide hazards of the region is made using an integrated information model, which is divided into destructive, disastrous, likely disastrous and essentially non-disastrous areas from the assessment of landslide hazards. The destructive and disastrous areas are respectively 1.9 and 13.8% of the total region, mostly being nearby townships, highways along the south bank of the Yangtze River and residential quarters along two flanks of the Yangtze River and its distributaries, that will impose direct impact to highway transportation and residential lives, and may effect to some degree the navigation of the Yangtze River, reservoir banks, and building of cities and towns.
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Acknowledgments
This work was supported by grants from the China Geological Survey (Z1.6), the Ministry of Science and Technology (2001DIA20027) and the National Natural Science Foundation of China (40272130). The authors are most grateful to Prof Chen Qingxuan, member of the Chinese Academy of Sciences for his suggestions in the revision of the manuscript.
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Wu, S., Jin, Y., Zhang, Y. et al. Investigations and assessment of the landslide hazards of Fengdu county in the reservoir region of the Three Gorges project on the Yangtze River. Env Geol 45, 560–566 (2004). https://doi.org/10.1007/s00254-003-0911-1
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DOI: https://doi.org/10.1007/s00254-003-0911-1