Simulation Analysis of Carbon Emission Effect and Land Use Change in Guiyang City
The change in land use structure affects the land carbon emission effect.Analyzing the spatiotemporal characteristics of the land use change has practical significance for evaluating the impact of urban land carbon emissions.By using the land change data in Guiyang,this paper evaluated the spatiotemporal pattern of carbon emissions and the impact of human activities,analyzed the risk and pressure index of land carbon emissions,and simulated the pattern and ecological risk of future land use changes.The results showed that,from 2000 to 2020,the total value of carbon emission from the land use in Guiyang City showed an increasing trend,and the urban development faced enormous ecological risks.The construction land and arable land were the main types of changes,and the transfer of construction land mainly came from the decrease in the arable land.At the same time,the areas of forest and grassland also showed a gradually decreasing trend.The main types of land use evolution in Guiyang City from 2025 to 2030 were still the construction land and arable land,and ecological risks of the land use had evolved from the urban center to the periphery.The future land use of Guiyang City should focuse on low-carbon emission reduction,improve the coordination of low-carbon emis-sion reduction and ecological environment,and promote the sustainable economic and urban development.
Land use changeCarbon emission effectCarbon footprint pressure indexCA-Markov modelSimulation and prediction