The Impact of Catastrophic Natural Disaster on Land-Use Changes of Qingping Town and the Selection of Suitable Land for Settlement Construction  

作　　者：YU Hui LIU Shaoquan GUO Shili HU Ying ZHENG Zhijun SHE Tao 

机构地区：[1]Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu 610041,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]The Geological Environment Monitoring Station,Chengdu 610041,China [4]The Institute of Exploration Technology,Chinese Academy of Geological Sciences,Chengdu 610041,China

出　　处：《Journal of Mountain Science》2012年第6期827-834,共8页山地科学学报（英文）

基　　金：supported by the Directional Project (Grant No. KZCX2-EW-317);Western Light Project (Grant No. 09R2340340) of Chinese Academy of Sciences;National Natural Science Funds (Grant No. 41071350,41101552)

摘　　要：A Ms 8.0 large earthquake occurred in Sichuan,China on May 12,2008（hereafter called 5.12 Earthquake）,and then a large debris flow happened in the quake-hit Qingping Township of Mianzhu county on August 13,2008（hereafter called 8.13 Debris Flow）.The influence of two disasters on the changes in land use were analyzed by using highresolution aerial photos and satellite remote sensing images taken before and after the 5.12 Earthquake and 8.13 Debris Flow,the selection of suitable construction land were studied by learning experiences and lessons from the selection of resettlement areas and through field surveys and with land use transfer model and analytical model in combination with RS and GIS.The results showed that the influence of the 5.12 Earthquake on ecological environment was far greater than that of the 8.13 Debris Flow;there were more salient conflicts between population and land after the earthquake.Sites for post-disaster reconstruction should not be in disaster-prone areas or in gully-facing areas.Suitable land for settlement construction in I-1~I-5 low-hazard zones is optimal settlement areas for post-disaster reconstruction.

关 键 词：EARTHQUAKE Debris flow Land use Settlement construction 

分 类 号：P315.2[天文地球—地震学] X171.1[天文地球—固体地球物理学]