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Selecting Sichuan Province as the study area, setting rainfall-induced shallow landslide hazard for the research objectives, choosing slope, fault zone, rivers, lithology, soil type and vegetation as the main evaluation factors of the environmental vulnerability assessment. Based on the landslides disaster database since 5.12 Earthquake in Sichuan Province, the weights of the evaluation factors are...
Regional precipitation-induced landslide is one of the major geologic hazards in our country, which features large areas of damage, simultaneity, sudden breakout and serious consequences. Especially in Sichuan province where has happened earthquake, tectonic changed, secondary disasters happened very frequently. It is essential to carry out the research into the forecast and early warning of precipitation-induced...
The Ms 8.0 Wenchuan earthquake, occurred on 12 May 2008 in Sichuan Province, caused enormous property damages and human casualties. In order to remove threat from the secondary landslides effectively, this study used techniques of remote sensing and GIS to generate susceptibility map, taking the case of Wenchuan County. The factors controlling landslides are obtained from geological maps and DEM,...
The 0908 typhoon “Morakot” heavily attacked Taiwan. It brought strong rainfall which not only caused water level rise in several reservoirs and rivers, but also triggered a large number of landslides, debris flow, collapse and other geological disasters. In this paper, using NDVI(Normal Differential Vegetation Index) subtractive method, together with band combination symbol coding method, “Morakot”...
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