Abstract
Jiuzhaigou scenic area, one of the scenic spots in“World Natural Heritage List”, has a long history and important ecological environment resources. However, with the continuous development of the tourism industry and the impact of earthquake disasters, the problem of heavy metal chemical pollution has become increasingly prominent. This paper takes the spatial distribution characteristics of heavy metal chemical pollution in Jiuzhaigou scenic spot as the research object, adopts the methods of literature analysis, field investigation and mathematical statistics, etc., based on the brief introduction of the general situation of Jiuzhaigou scenic spot and the relationship between earthquake and heavy metal pollution, and adopts field survey. Using the method of regular grid-system deployment, 133 sampling sites in the Jiuzhaigou scenic spot were systematically investigated, and soil properties, pH values, and heavy metal contents and their spatial distribution characteristics were analyzed. The study found that the main heavy metal pollution in the Jiuzhaigou scenic spot are Pb, Cu, and Zn, which are mainly concentrated in roads, residential areas and scenic green areas. Finally, some suggestions on the sustainable distribution of scenic spots were proposed based on the investigation results of the spatial distribution of heavy metal chemical pollution in Jiuzhaigou scenic spot.
