Abstract:
Land use change is a direct factor affecting carbon storage, and the change of carbon storage will directly affect the urban climate, social economy and ecosystem service function. Therefore, reasonable land use planning and management has important strategic significance for maintaining and increasing carbon storage. Taking Yantai City as an example, three periods of land use data were selected, and GIS and other software were used to analyze the characteristics of land use change. The InVEST-FLUS coupling model was used to analyze the land use change and carbon storage distribution in Yantai City in 2035 under the two scenarios of natural evolution and ecological protection. The results show that from 2000 to 2020, the cultivated land, grassland and other land in Yantai City continued to decrease, the forest land, water area and construction land continued to increase, and the carbon storage continued to decrease, with an overall decrease of 18.01×10
6 t. Cultivated land is the main land type with reduced carbon storage. Under different scenario simulation comparison, the forest land and grassland under the ecological protection scenario are increased, the cultivated land, construction land and other land are reduced, and the utilization degree of other land is reduced. The carbon storage under the ecological protection scenario and the natural evolution scenario decreased by 10.06×10
6 t and 11.37×10
6 t, respectively, and the development of carbon storage under the two scenarios was not much different.