Nitrogen (N) is a key input to food production. Nearly half of N fertilizer input is not used by
crops and is lost into the environment via emission of gases or by polluting water bodies. It is …

Synthetic fertilizers have been revolutionary in the way that the increased production of food
crops has increased as a result of the application of synthetic fertilizers. Despite the fact that …

The identification of nitrate (NO 3−) sources and biogeochemical transformations is critical
for understanding the different nitrogen (N) pathways, and thus, for controlling diffuse …

Over the past few decades, the La Paz aquifer system in Baja California Sur, Mexico, has
been under severe pressure due to overexploitation for urban water supply and agriculture; …

Intensive agriculture and urbanization have led to the excessive and repeated input of
nitrogen (N) into soil and further increased the amount of nitrate (NO 3−) leaching into …

Clarifying the biogeochemical mechanism of nitrate (NO 3−) in the vadose zone-
groundwater system, particularly in agricultural contexts, is crucial for mitigating groundwater …

Groundwater contamination by heavy metals (HMs) released by weathering and mineral
dissolution of granite, gneisses, ultramafic, and basaltic rock composition causes human …

Remediation of nitrate pollution of Earth's rivers and aquifers is hampered by cumulative
biogeochemical processes and nitrogen sources. Isotopes (δ 15N, δ 18O) help unravel …

Abstract Groundwater nitrate (NO 3-) pollution has attracted widespread attention; however,
accurately evaluating the sources of NO 3-and their contribution patterns in regional …

Groundwater table fluctuation alters the biochemical environment and nitrogen
transformation, leading to periodic changes in groundwater nitrate concentration. A …