Research on the Features and Driving Factors of Shallow Groundwater Quality in Arid Areas, Northwest China

Water, Journal Year: 2025, Volume and Issue: 17(7), P. 934 - 934

Published: March 22, 2025

Given the increasing threat of groundwater pollution, comprehending trends and influencing factors quality variation is essential for effective mitigation strategies. This study addresses variations in Beichuan River, a critical area China’s arid region. Using hydrochemical analysis multivariate statistics, we identified key quality. Groundwater mildly alkaline, with HCO3−-Ca as dominant type. The concentrations major ions increase during high-flow period due to rainfall effects. dissolution rock salt primarily contributes presence Na+ Cl− ions. Meanwhile, weathering silicate carbonate rocks main origin Ca2+, Mg2+, HCO3− Additionally, evaporite principal source SO42−. Human activities, particularly sewage discharge fertilization, significantly contribute nitrate contamination. Principal component revealed that industrial activities are controlling season, while hydrochemistry low-flow season mainly influenced by rocks, salt. Our findings provide scientific basis preventing deterioration ecological environmental protection regions.

Language: Английский

Anthropogenic exogenous nitric and sulfuric acids in karst plateau reservoirs and their impact on carbon sinks

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 133394 - 133394

Published: April 1, 2025

Language: Английский