Dynamic simulation of multi-scenario land use change and carbon storage assessment in Hohhot City based on PLUS-InVEST model
To explore the impact of land use change on ecosystem carbon storage in Hohhot City,this paper simulates and predicts the land use and carbon stock of Hohhot City under four scenarios,namely,natural development,ecological protection,arable land protection,and urban development based on the InVEST and PLUS models.The results showed that the area of land use types,such as impervious surface,forest land,grassland,and water bodies in Hohhot City increased from 1990 to 2020.The area of land types,such as cultivated land,bare land,and shrubs decreased,with shrubs and bare land having the highest land turn-out rate of 93.63%and 98.24%,respectively.The estimation results of the InVEST model indicated that the continuous expansion of anthropogenic ground,erosion of arable land,and other land use high carbon density land types that resulted in a decreasing trend of carbon storage in Hohhot City from 1990 to 2020.The carbon stocks in Hohhot City in 2030 under the abovementioned scenarios are predicted to decrease compared with those in 2020.Carbon stocks in the arable land protection scenario are predicted to decrease the least,followed by the ecological protection scenario,indicating that reasonable protection measures can effectively reduce the decrease of carbon stocks.The arable land conservation scenario can effectively slow down the expansion of urban buildings,while the ecological conservation scenario can effectively increase ecological land such as water bodies and grasslands.The study shows that the implementation of arable land and ecological protection policies,optimization of land use structure,and improvement of land use efficiency are all important for the sustainable development of Hohhot City.
万方数据
维普
