Spatiotemporal Distribution Pattern of Water Yield in the Henan Section of Shaying River Basin and Future Multi-scenario Simulation
Henan section of Shaying River Basin was selected as the study area,and used the In VEST model to assess the function of water yield services from 1990 to 2020,and combined with the PLUS model to predict the evolutionary characteristics of land use/cover and the trend of future changes in water production services under the three scenarios in 2030 and 2050,and the results of the study show that from 1990 to 2020,the depth of water production showed a tendency of increasing and decreasing,and the average water production depth of the section increased and decreased.The water yield depth showed a trend of increasing and then decreasing,showing a spatial distribution characteristic of high in the east and low in the west.The water yielding capacity of land use types,from strong to weak,is unused land,construction land,arable land,grassland,forest land,and watershed,and cultivated land and construction land were the main types of water production services in the study area,accounting for 77％and 18％of the total water yield.Under the three scenarios,the total amount of water production in the study area by 2050 is in descending order:urban development scenario,business-as-usual,and cropland protection scenario.This study can provide support for the regional development of land use policies,water resource management measures,and territorial spatial gover-nance programmes.
water yieldInVEST modelland use changePLUS modelHenan section of Shaying River Basin
万方数据
维普
