Financial costs and benefits of a program of measures to implement a National Strategy on Biological Diversity in Germany
2014
Wüstemann, Henry | Meyerhoff, Jürgen | Rühs, Michael | Schäfer, Achim | Hartje, Volkmar
The implementation of the National Biodiversity Strategies and Actions Plans (NBSAP), as required by Article 6 of the UN Convention on Biological Diversity (CBD), would improve the base for political decisions by quantifying the costs and benefits of biodiversity conservation in monetary terms and by illustrating the benefits of related ecosystem services (ESS). However, so far the costs and benefits of the NBSAP have not been routinely estimated. This paper presents results from research quantifying the financial costs and benefits of implementing a set of measures based on the National Strategy on Biological Diversity in Germany (NBS). Based on the NBS and the Quality Status Reports of the EU Habitat Directive, a conservation program was developed consisting of land use changes for six ecosystems/land use types: forests, arable land, grassland, peatlands, wetlands and dry habitats. In addition to the benefits of maintaining biodiversity, two potential ESS benefits of the NBS, water purification and climate mitigation, are estimated as well as the financial costs of implementation. A nationwide contingent valuation study was undertaken to determine the benefits of maintaining biodiversity as a result of the conservation program. The benefits of the conservation program with regard to the ESS water purification are calculated for N-reduction in the leachate and based on abatement costs. The contribution of nature conservation to climate mitigation is calculated for the avoidance of greenhouse gas (GHG) emissions and based on damage costs. The results of the study indicate that the implementation of the NBS would lead to significant financial costs, but the benefits would exceed the financial costs of measures.
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