Study on Ecosystem Service Value of Xiang River Basin Based on Land Use Change
Based on the 2000,2005,2010,2015,and 2020 land use data of the Xiang River basin,using the ArcGIS spatial analysis method combined with the revised ecosystem service value equivalent,the value of ecosystem services in the study area was estimated and its spatio-temporal changes were discussed.The results showed that:①from 2000 to 2020,the area of cultivated land in the Xiang River basin decreased the most,while the area of construction land increased the most.The intensity of land-use change from strong to weak were as follows:con-struction land＞unused land＞grassland＞cultivated land＞water area＞forest land;②from 2000 to 2020,the amount of ESV in the Xiang River basin increased by 62 million yuan.The order of total amount of ESV from high to low is:forest＞water＞farmland＞grassland＞unused land＞construction land.From high to low,the ESV of individual services are:regulation services＞support services＞supply services＞cultural services.The distribution of high and low values of ESV was consistent with that of land type.The high values were con-centrated in the periphery of woodland and water area,and the low values were concentrated in the vicinity of construction land and unused land;③in spatial distribution,ESV types showed positive correlation and clustering distribution,high and low clustering in general,high and low clustering in local.The main reason of ESV profit and loss is the mutual transfer between different types.The analysis of LUCC and ESV can provide a solid sup-port and scientific reference for the improvement of ecological quality and regional sustainable development in the Xiang River basin.
land use changeecosystem service valuespatial autocorrelation analysisXiang River basintempo-ral and spatial evolution
NETL
NSTL
万方数据
