221-2
See more from this Division: ASA Section: Environmental Quality
See more from this Session: Watershed Management Planning: Predicting Nutrient Reductions Due to the Implementation of Best Management Practices
Abstract:
The Danish research and innovation project “iDRAIN” (2011-2017) (www.idrain.dk) aims at improving the understanding on nutrient (N and P) fluxes and transformations at subcatchment scale to facilitate a more targeted cost-efficient environmental regulation. The subcatchment study site (Fensholt, 6 km2) is located with the larger Norsminde Fjord catchment (100 km2) on the east coast of Jutland, Denmark. The Fensholt subcatchment is characterized by hilly terrains and with riparian lowland bordering the main stream which discharges into Norsminde Fjord. The subcatchment is moraine clay xxxxxxx. The major land-use is agriculture (78%) and the subcatchment is heavily tile-drained. To monitor the nutrient fluxes the subcatchment was instrumented with a number of drainage stations, stream stations and shallow piezometers to continuously monitor drainage- and stream discharge, nutrient (N, P) transport and water table dynamics. Based on four years of continuous monitoring (2012-2016) of nutrient fluxes and transformations, a scenario analysis was conducted to compare a targeted mitigation strategy with general measures to reduce agricultural nutrient losses to environmental thresholds.
See more from this Division: ASA Section: Environmental Quality
See more from this Session: Watershed Management Planning: Predicting Nutrient Reductions Due to the Implementation of Best Management Practices