Spatio-Temporal Processes and Characteristics of Vegetation Recovery in the Earthquake Area: A Case Study of Wenchuan, China

The quantitative and qualitative assessment of post-disaster vegetation damage recovery in the core area Wenchuan earthquake is great significance for restoration reconstruction natural ecosystems construction human settlements China. This study used time series analysis to determine MODIS data earthquake. determined images were quantitatively analyze a changes rate before after By applying topographic factors, we analyzed spatial temporal characteristics dynamic disaster area. results show that area’s was correlated factors distance from towns. Besides, overall relatively optimistic. In some areas, level even exceeded coverage disaster. MODIS-NDVI showed specific lag delay effect on image cover. cover significantly with towns factor. Overall, contribute theoretical support affected by