A multi-approach assessment of land use effects on groundwater quality in a karstic aquifer.

ABSTRACT: Groundwater represents almost half of the drinking water worldwide and more than one third of water used for irrigation. Agro-industrial activities affect water resources in several manners; one of the most important is leaching of agrochemical residues. This research identifies the major contributors of changes in groundwater quality comparing two contrasting land uses in a karstic area of the Yucatan peninsula as case study. Using a multiple approach, we assess the impact of land use with physicochemical data, multivariate analyses, hydrogeochemistry and nitrate isotopic composition. We confirmed that agricultural land use has a greater impact on groundwater quality, observed in higher concentration of nitrates, ammonium, potassium and electrical conductivity. Seasonality has an influenc

SUBMITTER: Smith DNI 

PROVIDER: S-EPMC7266785 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature