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Updated: Jan 15, 2026

Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
[Impacts of Changes of Multi-temporal Land Use/Landscape Patterns on Water Quality in the Yellow River Basin:An
Wei-Tong Zhan1, Yi-Fan Wu1, Wei-Wei Zheng1
1College of Economics and Management, Northwest Agriculture and Forestry University, Yangling 712100, China.
Abstract:
It is of great significance to explore the impacts of the spatiotemporal dynamic evolution of land use/landscape patterns on basin water quality. Based on the panel data and land use data from 78 national surface water quality monitoring stations in the Yellow River Basin from 2017 to 2023, the dynamic influences of human land use on water quality in the 78 sub-basins were investigated using the SWAT model, spatial Durbin model, and geographically weighted regression model. The study produced several significant results: ① The comprehensive index (CWQI) of water quality in the Yellow River Basin showed an increasing and then decreasing trend, and the overall water quality improved. Among the indices, pH, NH3-N (ionic state), TN, and TP varied in the order of upstream > downstream > midstream, and the permanganate index varied as upstream > midstream > downstream. ② Arable land and construction land increased by 1.562×104 km2 and 1.176×104 km2, respectively, in the whole basin, spatial heterogeneity and diversity were low, and no serious landscape fragmentation occurred. ③ The effects of construction land, arable land, and landscape pattern on CWQI were spatially and temporally heterogeneous. There were negative spillover effects on CWQI from construction land, and positive spillover effects from arable land and SHDI. The positive impact of construction land on water quality was mainly concentrated in the downstream area. Positive impacts of arable land on water quality were mainly concentrated in the upstream and midstream areas. Increased diversity had a positive effect on water quality in only 24% of the sub-basins.
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