Abstract Models that simulate water flow and quality, particularly related to nitrate ions, are
commonly used on a catchment-scale. However, tracking nitrate ions is a challenging task …

Freshwater pollution by nitrate is a major threat to human and ecosystem health. Basin-scale
studies on nitrate pollution generally focus separately on surface water or on groundwater …

The Tibetan Plateau is sensitive to climate change, but the feedbacks of nitrogen (N) cycling
to climate conditions on this plateau are not well-understood, especially under varying …

Abstract Elevated riverine nitrate (NO 3−) levels have led to increased eutrophication and
other ecological implications. While high riverine NO 3− levels were generally ascribed to …

Because nitrogen availability limits primary production over much of the global ocean,
understanding the controls on the marine nitrogen inventory and supply to the surface ocean …

Fertilizers increase agricultural productivity and farmers' income. However, intensive
agriculture frequently overuses fertilizers, which in turn can contaminate surface and …

Urban rivers are often characterized by high nitrate (NO 3−) loadings. High NO 3− loadings
cause water quality and ecological damages, which undermines the sustainable …

Nutrient element cycling in the Tibetan Plateau, the highest and largest plateau in the world,
is sensitive to anthropogenic disturbances and climate change. Studying the spatiotemporal …

Due to the complexity of nitrate sources and transformation processes under extensive
human activities and climate change, there are a great number of uncertainties associated …

In the face of increasing discharge standards, sulfur autotrophic denitrification (SAD) is
gradually applied for deep nitrogen removal of electron-donor-deficient waters. However …