Spatial and temporal evolution of habitat quality and multi-scenario simulation in Chaohu Lake Basin
The PLUS model was used to simulate the land use change in the Chaohu Lake Basin,and the InVEST model was coupled to explore the change law of habitat quality under multiple scenarios.The results showed that from 2000 to 2020,cultivated land contributed the highest value to construction land.Under the natural development scenario,cultivated land and forest land de-creased.Under the economic development scenario,the loss of cultivated land was the most se-rious,reaching 410.45 km2.Under the green development scenario,the area of forest land in-creased from decreasing.From 2000 to 2020,the average values of habitat quality were 0.243,0.236 and 0.231,respectively,and low-quality areas were the main grade types affecting habitat quality.The mean values of habitat quality index were 0.228,0.226 and 0.229 under each scena-rio,and the low and low quality areas were the main components of habitat quality deterioration in the natural development scenario.Under the economic development scenario,the transfer of low-quality and low-quality areas is drastic.Under the green development scenario,the transfer of culti-vated land to forest land is the key to improving habitat quality,and it is the development scenario with the greatest potential for habitat optimization.