Dynamic Changes of Land Ecological Carrying Capacity Based on the Ecological Footprint in Chengdu City

The ecological footprint of Chengdu City in the past ten years was calculated and analyzed from the spatial and temporal dimensions based on statistical data from 1998 to 2008,by the way of the ecological footprint method,ecological carrying capacity and the GIS spatial analysis method,regression analysis method.The ecological footprint and ecological carrying capacity values from 2009 to 2019 in Chengdu City was predicted through calculation results in the past ten years.The results showed that the ecological footprint and ecological deficit of land use from 1998 to 2008 increased in Chengdu City.The ecological deficit of land use within the city center had always maintained at a high level in the past ten years,and the increase of ecological deficit was especially significant in Shuangliu County,Chongzhou City and Qingyang District,and the areas with high ecological deficit presented a fan-like distribution.In conclusion,the economy,society and natural ecosystem of Chengdu City are in an unsustainable state,and the value of ecological footprint is unevenly distributed in space.