Impact on the distribution of medicinal plant habitat by Wenchuan earthquake

Longmen Shan tectonic belt located in West Sichuan Plateau, which keeps the good forests outlook and provides a unique natural environment for the growth of medicinal plants because of its unique geological features. It is a area that is one of the most abundant biological diversity in China and the whole world range, and also is the one of the most concentrated area of the origin of Chinese herbal medicines in Sichuan Province and China. Wenchuan Earthquake induced thousands of landslides, debris flows, which made a huge impact on the medicinal plant habitat by means of severe fragmentation. In this paper, through evaluating and integrating the multi-period remote sensing image data and basic geographic information data of the Longmen Shan region after earthquake by grid technology, the image group that covers the whole Longmen Shan belt and reflects the different features of ground object is acquired. Characters of Wenchuan earthquake disaster distributing is interpreted and analyzed by geographic information system platform for spatial analysis with the image group. Combine with the life habits of medicinal plants in this area and the main ecological factors impacting the spatial distribution pattern of medicinal plants, the impact on distribution pattern of medicinal plants habits during the disaster discussed, as a result, medicinal plants habitat influenced in the shock in various environmental factors is concluded. It can provide the academic evidence for medicinal plant restoration in earthquake zone.