AI Article Synopsis
- Surface water in the Hulan River basin is crucial for irrigation and drinking water in rural communities, making its water quality a key concern for sustainable development.
- Researchers used various analytical methods to assess the spatial and temporal distribution of water quality, revealing trends such as medium-weakly alkaline conditions and low mineralization.
- Major factors impacting water quality include topography, land use changes, pesticide and fertilizer application, and tourism development, alongside findings that non-point source pollution levels rise downstream, highlighting the need for better pollution control strategies.
Article Abstract
Surface water is the main source of irrigation and drinking water for rural communities by the Hulan River basin, an important grain-producing region in northeastern China. Understanding the spatial and temporal distribution of water quality and its driving forces is critical for sustainable development and the protection of water resources in the basin. Following sample collection and testing, the spatial distribution and driving forces of water quality were investigated using cluster analysis, hydrochemical feature partitioning, and Gibbs diagrams. The results demonstrated that the surface waters of the Hulan River Basin tend to be medium-weakly alkaline with a low degree of mineralization and water-rock interaction. Changes in topography and land use, confluence, application of pesticides and fertilizers, and the development of tourism were found to be important driving forces affecting the water quality of the basin. Non-point source pollution load fluxes of nitrogen (N) and phosphorus (P) were simulated using the Soil Water and Assessment Tool. The simulation demonstrated that the non-point source pollution loading is low upstream and increases downstream. The distributions of N and P loading varied throughout the basin. The findings of this study provide information regarding the spatial distribution of water quality in the region and present a scientific basis for future pollution control.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7033256 | PMC |
| http://dx.doi.org/10.1038/s41598-020-59980-7 | DOI Listing |
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