The ecological security evaluation research of Shangri-La based on GIS and RS

Shangri-La is an important water source area in China; the change of the local ecological environment will take very big effect to our country. In this paper, the ecological footprint model is used to calculate the Shangri-La County´s ecological footprint and ecological carrying capacity of 2003 and 2012. This article in acquiring land productive land used the remote sensing (RS) and Geographic Information System (GIS) technology, which makes the area of land more accurate. The ecological footprint of Shangri-la county changed from 1.15 in 2003 to 3.80 in 2012, and the ecological carrying capacity charged from 5.90 in 2003 to 4.74 in 2012, it can be seen that the ecological environment of Shangri-la county is developing in the direction of fragile.