Identification of groundwater nitrate sources and its human health risks in a typical agriculture-dominated watershed, North China DOI
Wang Shou, Jing Chen, Fei Liu

et al.

Environmental Geochemistry and Health, Journal Year: 2024, Volume and Issue: 46(12)

Published: Nov. 7, 2024

Language: Английский

Evaluating agricultural non-point source pollution with high-resolution remote sensing technology and SWAT model: A case study in Ningxia Yellow River Irrigation District, China DOI Creative Commons
Song Zhang, Linlin Zhang, Qingyan Meng

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 166, P. 112578 - 112578

Published: Sept. 1, 2024

Language: Английский

Citations

7
Projected land use changes will cause water quality degradation at drinking water intakes across a regional watershed DOI Creative Commons
Elly T. Gay, Katherine L. Martin, Peter V. Caldwell

et al.

PLOS Water, Journal Year: 2025, Volume and Issue: 4(4), P. e0000313 - e0000313

Published: April 23, 2025

Forest conversion to development threatens the ability of watersheds provide stable and clean water supplies. Water managers are targeting forest conservation as a source protection strategy maintain healthy watershed function in developing areas, especially upstream drinking treatment facilities. Understanding role current cover safeguarding these facilities is therefore crucial. We used Soil Assessment Tool (SWAT) examine relationship between downstream resources under both (2020) conditions multiple projected land use scenarios for 2070 Middle Chattahoochee watershed, USA. investigated extent which existing benefits quality at 15 intake within watershed. Our analysis four change revealed that increased resulted higher average annual concentrations total suspended sediment (TSS) nitrogen (TN) 13 out facilities, with potential increases up 318% 220% nitrogen. Conversely, decreased relative baseline when agricultural was converted or new, low-intensity development, suggesting certain types may improve compared maintaining land. results also indicated extreme concentration events – defined days exceeding highest 10th percentile could become 3.6 6.6 times more frequent future, respectively. Notably, new intakes smaller subwatersheds reduce utilities serving towns rural have limited managing this challenge. findings highlight vulnerable locations underscore benefit future change.

Language: Английский

Citations

0
From Reduction to Rebalancing: Insights into the Long-term Effects of Sediment Dredging on Nitrogen Transformations in River Ecosystems DOI

Zhuo Hao,

Shibo Chen, Qingwen Zhang

et al.

Water Research, Journal Year: 2024, Volume and Issue: 267, P. 122460 - 122460

Published: Sept. 16, 2024

Language: Английский

Citations

3
Integrating isotope mixing and hydrologic models towards a more accurate riverine nitrate source apportionment DOI

Yulong Li,

Hongbo Li, Dezhi Wang

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 483, P. 136636 - 136636

Published: Nov. 27, 2024

Language: Английский

Citations

1
Unveiling seasonal nitrate contamination dynamics in cropland sub-watersheds: A geo-morphological analysis of the bilate agricultural watershed DOI Creative Commons
Bereket Geberselassie Assa, Anirudh Bhowmick, Bisrat Elias Cholo

et al.

Environmental Advances, Journal Year: 2024, Volume and Issue: 17, P. 100572 - 100572

Published: July 24, 2024

Cropland sub-watershed surface and groundwater contamination are pressing issues for water management. This study examines the impact of sediment transport indices (STI) on nitrate concentration in downstream bodies. The research highlights rainfall's significant role predicting seasonal levels. Employing GIS-SWPT tools hydro-geomorphologic analysis, cropland sub-watersheds, particularly sub-watersheds one three, prioritized their high contribution to contamination, with prioritization values 105.58 180.63, respectively. Statistical conducted using Python's scikit-learn library, validated findings study, model's F-statistic 79.63 a corresponding p-value 0.0147 underscoring its overall significance. However, while STI alone showed parametric correlation coefficient 0.5077, suggesting other external factors also contribute loading, strong relationship between was revealed (R² 0.993). integrated approach enhances understanding how geomorphologic parameters influence quality downstream. By clarifying complex interactions concentration, evidence-based strategies can be developed mitigate pollution. provides valuable insights into pollution dynamics informs targeted management interventions.

Language: Английский

Citations

0
A review on curbing non-point source pollution in watershed—the answer lies at the root DOI

Yuekui Ding,

Zhaoxin Song,

Yan Hu

et al.

Environment Development and Sustainability, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 14, 2024

Language: Английский

Citations

0
Identification of groundwater nitrate sources and its human health risks in a typical agriculture-dominated watershed, North China DOI
Wang Shou, Jing Chen, Fei Liu

et al.

Environmental Geochemistry and Health, Journal Year: 2024, Volume and Issue: 46(12)

Published: Nov. 7, 2024

Language: Английский

Citations

0