Abstract
It is necessary that research ecological risk and ecological protection to Three Parallel Rivers world heritage site in China. Select forest fire, landslide and debris flow as a natural ecological risk source, and urban construction, tourism, fuel timber as artificial ecology risk source, we have confirmed the ecological end point. The study area was divided into risk subdistrict, and we have obtained every subdistrict comprehensive ecological risk value with ecological risk calculation model by GIS, Have evaluated ecological risk and spatial distribution in the area. We make ecological safety protection planning. The whole area is divided into three protection level, the first level reserve area is 6 thousand square kilometers, the second level is 12 thousand square kilometers, the third level is 16 thousand square kilometers. We have formulated the biodiversity and cultural diversity protection planning. Research indicates that landscape ecological protection, restoration and reconstruction are key way to building regional ecological security pattern.
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