Effects of land-use patterns on seasonal water quality at multiple spatial scales in the Jialing River, Chongqing, China

Wang, Yuan-Bo; Junaid, Muhammad; Deng, Jiao-Yun; Tang, Qi-Ping; Luo, Lin; Xie, Zhuo-Yuan; Pei, De-Sheng

doi:10.1016/j.catena.2023.107646

Cited by 7 publications

(2 citation statements)

References 32 publications

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“…These high TDS values for both studies may be due to a higher concentration of ions due to the effect of evaporation of the water masses [ 59 ]. On the other hand, in the Jialing River (China), similar results are reported for pH and EC parameters with higher concentration values in the dry season [ 60 ]. In the case of EC concentrations, the higher concentrations in the dry season are due to ion concentration due to increased river temperature and water evaporation [ 61 ].…”

Section: Discussionsupporting

confidence: 62%

Spatio-temporal evaluation of metals and metalloids in the water of high Andean livestock micro-watersheds, Amazonas, Peru

Leiva-Tafur,

Rascón,

Corroto de la Fuente

et al. 2024

Heliyon

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Section: Discussionsupporting

confidence: 62%

Spatio-temporal evaluation of metals and metalloids in the water of high Andean livestock micro-watersheds, Amazonas, Peru

Leiva-Tafur,

Rascón,

Corroto de la Fuente

et al. 2024

Heliyon

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“…Seasonal variations further complicate this relationship. Shi, Wang, and others found that the correlation between land use and water quality was more pronounced during the flood season compared to the non-flood season [22,23]. However the opposite conclusion was reached in the studies of the Three Gorges Reservoir and the Hehuang Valley [24,25].…”

Section: Introductionmentioning

confidence: 99%

Exploring the Impact of Land Use Scales on Water Quality Based on the Random Forest Model: A Case Study of the Shaying River Basin, China

Weng,

Zhang,

et al. 2024

Water

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Optimizing the land use structure is one of the most effective means of improving the surface water aquatic environment. The relationship between land use patterns and water quality is complex due to the influence of dams and sluices. To further investigate the impact of land use patterns on water quality in different basins, we use the Shaying River as an example, which is a typical tributary of the Huai River Basin. Utilizing 2020 land use data and surface water quality monitoring data from two periods, this study employs GIS spatial analysis, the Random Forest Model, redundancy analysis, and Partial Least-Squares Regression to quantitatively explore how different-scale buffer zone land use patterns impact surface water quality. The key findings include: (1) notable seasonal differences in water quality indicators within the basin. The Water Quality Index (WQI) is significantly better in the non-flood season compared to the flood season, with water quality deteriorating towards the lower reaches. Key indicators affecting water quality include dissolved oxygen (DO), ammonia nitrogen (NH3-N), total phosphorus (TP), and turbidity (Tur) in the flood season and NH3-N, permanganate index (CODMn), and electrical conductivity (EC) in the non-flood season. (2) Cultivated land and construction land are the main land uses in the basin. The sub-basin buffer zone was identified as the most effective scale for land use impact on water quality indicators in the Shaying River. (3) Partial Least-Squares Regression (PLSR) analysis revealed that cultivated land, construction land, and grass are the primary land use types influencing surface water quality changes, and the PLSR model is better during the non-flood season. Cultivated and construction lands show a positive correlation with most water quality indicators, while forest land, water bodies, and grasslands correlate positively with DO and negatively with other indicators. The study underscores that rational land use planning in the sub-basin is crucial for enhancing the quality of the surface water environment.

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A critical review of irrigation water quality index and water quality management practices in micro-irrigation for efficient policy making

Anyango,

Bhowmick,

Sahoo Bhattacharya

2024

Desalination and Water Treatment

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Effects of land-use patterns on seasonal water quality at multiple spatial scales in the Jialing River, Chongqing, China

Cited by 7 publications

References 32 publications

Spatio-temporal evaluation of metals and metalloids in the water of high Andean livestock micro-watersheds, Amazonas, Peru

Spatio-temporal evaluation of metals and metalloids in the water of high Andean livestock micro-watersheds, Amazonas, Peru

Exploring the Impact of Land Use Scales on Water Quality Based on the Random Forest Model: A Case Study of the Shaying River Basin, China

A critical review of irrigation water quality index and water quality management practices in micro-irrigation for efficient policy making

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