Through the field survey, previous researches and interpretation of aerial photos, a landslide information database of Xiaojiang Valley, Yunnan Province was set up based on the remote sensing (RS) and geographic infor...Through the field survey, previous researches and interpretation of aerial photos, a landslide information database of Xiaojiang Valley, Yunnan Province was set up based on the remote sensing (RS) and geographic information system (GIS) technologies. In the paper, a quantitative model for the landslide hazard assessment and zoning was presented, in which the potential energy could be obtained on basis of thorough analysis of the potential sliding volume, distance and direction of the landslide body. Taking landslide potential energy as the index of the hazard severity zonation, the study area was divided into severe, heavy, medium and light hazard zones.展开更多
It is well known that the plum rains are a climatic phenomenon of great importance in the Changjiang-Huai river valley. It has distinct interannual oscillation in rainfall amount, pluvial on-set and ending dates, and ...It is well known that the plum rains are a climatic phenomenon of great importance in the Changjiang-Huai river valley. It has distinct interannual oscillation in rainfall amount, pluvial on-set and ending dates, and brings about economic effects on agricultural production in this region. Although researches on plum rains have been展开更多
基金Supported by the Special Project of Chinese Academy of sciences for Mountain Hazards: Debris Flow and Landslide and Oriented Project of Knowledge Innovation of Chinese Academy of sciences(KZCX2-SW-319)
文摘Through the field survey, previous researches and interpretation of aerial photos, a landslide information database of Xiaojiang Valley, Yunnan Province was set up based on the remote sensing (RS) and geographic information system (GIS) technologies. In the paper, a quantitative model for the landslide hazard assessment and zoning was presented, in which the potential energy could be obtained on basis of thorough analysis of the potential sliding volume, distance and direction of the landslide body. Taking landslide potential energy as the index of the hazard severity zonation, the study area was divided into severe, heavy, medium and light hazard zones.
文摘It is well known that the plum rains are a climatic phenomenon of great importance in the Changjiang-Huai river valley. It has distinct interannual oscillation in rainfall amount, pluvial on-set and ending dates, and brings about economic effects on agricultural production in this region. Although researches on plum rains have been
