Vegetation Restoration Monitoring in Yingxiu Landslide Area after the 2008 Wenchuan Earthquake

作者：HE Jing,ZHANG Keke,LIU Xiuju,LIU Gang,ZHAO Xuqiang,XIE Zhongyuan,LU Heng

摘要：A total of more than 50000 landslides has occurred in Sichuan province since the"5·12"Wenchuan earthquake,resulting in serious damage to the surface vegetation in southwestern China.In this study,we select Yingxiu,the epicenter of Wenchuan earthquake,as the experimental area.The vegetation coverage information of the experimental area is extracted from the remote sensing images collected in the year of 2005,2011 and 2013,respectively.The surface vegetation coverage in different periods is analyzed,and the vegetation recovery rate of the whole area is calculated.The experimental results show that in the first three years after the earthquake,the speed of vegetation restoration is slow,and the vegetation coverage rate is less than 20%better than 0.241,while in 2013,the vegetation coverage increases significantly.

發文機構：College of Earth Sciences State Key Laboratory of Geohazard Prevention and Geoenvironment Protection China Petroleum Engineering and Construction Corp.Southwest Company Chengdu Planning Information Technic Center State Key Laboratory of Hydraulics and Mountain River Engineering College of Hydraulic and Hydroelectric Engineering

關鍵詞：WENCHUANEARTHQUAKEYingxiuLANDSLIDEareaNDVIVEGETATIONRESTORATION

分類號： P31[天文地球—固體地球物理學][天文地球—地球物理學]