Evaluation of debris flow risk of Jinsha river basin in Yunnan province
ZHOU Chun-Hua-；Tang-Chuan-；Tie-Yong-Bei
1.College of Resource Environment and Earth Science of Yunnan University,650091,Kunming;2.National Specialty Laboratory of Disaster Prevention and Geoenvironment Protection,610059,Chengdu;3.College of Tourism and Geographical Science,Yunnan Normal University,650092,Kunming: China
Abstract：In order to exactly evaluate debris flow risk in Jinsha river of Yunnan,by estimating unit of district,selecting estimative targets of 43 counties and cities in Jinsha river basin,weight of 8 evaluative indexes were calculated by AHP.Based on basic data of estimative units,8 evaluative indexes of units were classified and quantificationally graded,debris flow risk of every district was calculated out,and that of 43 counties and cities were appraised by determinate standard at last.The results show that debris flow risk are higher at upper and lower reaches in Jinsha rever basin of Yunnan,which are lower comparatively at middle reaches.It provide scientific basis for prevention and controlling of debris flow and land use planning.
2006, Vol. 4 
