Spatial modelling integrating agricultural production, costs and hydrology for nitrogen policy assessments - a catchment approach

TY - CHAP

T1 - Spatial modelling integrating agricultural production, costs and hydrology for nitrogen policy assessments - a catchment approach

AU - Hasler, Berit

AU - Hansen, Line Block

AU - Konrad, Maria Theresia Hedegaard

AU - Andersen, Hans Estrup

AU - Termansen, Mette

PY - 2017

Y1 - 2017

N2 - Nutrient loads cause eutrophication, and the non-point characteristics of this pollution problem has been studied for decades. Efforts have been made to reduce nutrient loads and eutrophication in Europe, US and elsewhere, but additional actions are required to achieve good water quality aimed for in water quality policies. Spatial data describing the relationships between biophysical andhydrological factors and agricultural production have been used to develop an ecological-economic model of the non-point pollution and the spatial configuration of the costs to reduce the loads. The model has been developed to analyze the cost-effective choice of abatement measures taking the nonpoint and diffuse distribution of the loads of nitrogen to the sea into account. The model is a cost-minimization model at a fine spatial resolution which identifies spatial distributions of the costeffective implementation of abatement measures. The model is developed to analyze and compare the costs and effects of uniform regulation versus spatially differentiated implementation of abatement measures, as well as how model assumptions affect the model solutions. Both types ofanalyses are regarded important for the use of this type of models in policy advise.

AB - Nutrient loads cause eutrophication, and the non-point characteristics of this pollution problem has been studied for decades. Efforts have been made to reduce nutrient loads and eutrophication in Europe, US and elsewhere, but additional actions are required to achieve good water quality aimed for in water quality policies. Spatial data describing the relationships between biophysical andhydrological factors and agricultural production have been used to develop an ecological-economic model of the non-point pollution and the spatial configuration of the costs to reduce the loads. The model has been developed to analyze the cost-effective choice of abatement measures taking the nonpoint and diffuse distribution of the loads of nitrogen to the sea into account. The model is a cost-minimization model at a fine spatial resolution which identifies spatial distributions of the costeffective implementation of abatement measures. The model is developed to analyze and compare the costs and effects of uniform regulation versus spatially differentiated implementation of abatement measures, as well as how model assumptions affect the model solutions. Both types ofanalyses are regarded important for the use of this type of models in policy advise.

M3 - Book chapter

BT - International Nitrogen Initiative Conference - Conference proceedings

T2 - International Nitrogen Initiative Conference

Y2 - 4 December 2016 through 8 December 2016

ER -