Research on Land Use and Habitat Quality Prediction Based on PLUS-InVEST Model-Taking the Three Gorges Reservoir Area(Chongqing Section)as an Example
In this paper,taking the Three Gorges Reservoir Area(Chongqing section)as an example,based on the land use data from 2000 to 2010 to 2020,PLUS model is used to simulate the prediction from four scenarios of natural development,urban development,farmland protection and ecological protection,and then InVEST model is used to evaluate the habitat quality of the Three Gorges Reservoir area(Chongqing section).The results show that:(1)from 2000 to 2020,the main land use types of the Three Gorges Reservoir area(Chongqing section)were cultivated land and forest land,and the conversion among different regions was fierce,and the construction land was significantly expanded;(2)in 2030,the land use varied significantly under the four forecast scenarios,the water area kept increasing,the unused land kept decreasing,the cultivated land only increased under the cultivated land protection scenario,the forest land only decreased under the farmland protection scenario,and the grassland only increased under the ecological protection scenario;(3)among the four simulated scenarios in 2030,the habitat quality in the other three scenarios deteriorated to some extent,except for the improved habitat quality in the ecological protection scenario.
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