We present data from a comprehensive investigation carried out from 2007 to 2010,
focussing on nitrogen pollution in the Oglio River basin (3800 km 2, Po Plain, Northern Italy) …

A nitrogen mass balance, realized for the lower Oglio River basin (Po River Plain, northern
Italy), suggested an elevated impact of agricultural activities in this watershed. Livestock …

Detailed studies on pollutants genesis, path and transformation are needed in agricultural
catchments facing coastal areas. Here, loss of nutrients should be minimized in order to …

This study aims at evaluating sources and processes affecting NO 3− concentrations in the
Oglio River. Five sampling campaigns considered the main watercourse, tributaries, point …

In a catchmnent, nitrogen (N) export from terrestrial ecosystems to rivers is controlled by the
hydrological processes and N balance. In the present paper, the soil system N budget and …

Although representing a paramount mechanism against nitrogen excess in agricultural
landscapes, soil denitrification is still a largely unknown term in nitrogen balances at the …

The identification of nitrate-nitrogen (NO3–N) origin is important in the control of surface and
ground water quality. These are the main sources of available drinking water. Stable …

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 …

Executive summary Nature of the problem (science/management/policy)• Freshwater
ecosystems play a key role in the European nitrogen (N) cycle, both as a reactive agent that …

Wetland ecosystems in agricultural areas often become progressively more isolated from
main water bodies. Stagnation favors the accumulation of organic matter as the supply of …