Tracing the source of heavy metal pollution in water sources of Tourist Attractions Based on GIS remote sensing

To effectively prevent heavy metal pollution in water sources tourist attractions, clarify the degree of control sources, and improve accuracy tracing results, a GIS-based remote sensing method attractions is proposed. Using GIS spatial analysis method, DEM elevation data monitored by obtained, watershed geographic information compiled, GPS obtains longitude latitude coordinates to locate source pollution. The plug-in application framework designed, are integrated build platform. According mixing direction pollutants after entering source, migration diffusion coordinate system established. spatial-temporal distribution function model constructed through migration, transformation, concentration sources. results scenic spots obtained. showed that order variation coefficient elements was Cr > Cd Cu Ni Zn Pb. extremely uneven. There certain positive correlation between Cr, 0.78. very significant, homology strong. Moreover, identification result proposed close real value, which can accurately trace with small error high evaluation.