Spatiotemporal changes of ecosystem services and their response to urbanization in Xinzhou City
In order to investigate the spatial and temporal changes of ecosystem services(ESs)in Xinzhou City and analyze the response of ESs to urbanization,three urbanization indicators and four ESs indicators were selected based on six periods of land use data from 1995 to 2020,while ESs were assessed with the help of the InVEST model and the Revised Universal Soil Loss Equation(RUSLE).Moreover,K-means clustering was used to identify ecosystem services bundles(ESB).Besides,Pearson correlation coefficient was used to analyze the trade-offs and synergies among ESs and their responses to urbanization.The results showed that:(1)Land use types in Xinzhou City were dominated by grassland,arable land and forest,with construction land expanding by 280.7km2,forest increasing by 1201.4km2,grassland increasing by 511.4km2,and arable land and water area decreasing in the period from 1995 to 2020.There was a greater shift from arable land to grassland and from grassland to forest.(2)Construction land,GDP and population continued to grow,and 2005～2015 was a period of rapid urbanization.1995～2020 the food provision steadily improved,carbon stock significantly increased after 2015,habitat quality firstly increased and then decreased,soil retention firstly decreased and then increased.(3)The area of grassland-based functional complex ecosystem services bundles accounted for 51.4％,with mainly synergistic relationships among ESs,and negative correlation between habitat quality-urbanization and soil retention-urbanization.The results of this study can provide scientific basis for land management and ecological protection in Xinzhou City.
ecosystem services(ESs)urbanizationland use changeecosystem services bundle(ESB)Xinzhou City
万方数据
维普
