| Abstrakt: |
The excess of nutrients in the Netherlands, mainly from agriculturalactivities, leads to widespread acidification and eutrophication, affecting biodiversity and drinking water resources. Policy measures are aimed at decreasing nutrient emission and spatial planning is directed to decreasing land use for agriculture, for the benefit of naturedevelopment and urbanization. Decision Support Systems (DSS) are developed to evaluate, integrate and design policy scenarios with respect to social-economy, environmental protection, spatial planning and nature development. Two examples are given. STONE is a DSS for nitrateand phosphorus in agricultural areas, which integrates the predictive models and data for emission, atmospheric deposition and leaching of N and P. The `Nature Planner', is a DSS for the multistress effectsof acidification, eutrophication and desiccation on, until now, terrestrial nature. It is shown that with the Nature Planner environmental scenario's can be evaluated in terms of biodiversity indicators. Integration of STONE and the Nature Planner into one DSS will give a still more powerful policy analysis tool. With this new DSS scenarios for the conversion of agricultural land into nature can be evaluated. [ABSTRACT FROM AUTHOR] |
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