Valuation of Ecosystem Services Provided by Biodiversity Conservation: An Integrated Hydrological and Economic Model to Value the Enhanced Nitrogen Retention in Renaturated Streams

Ingo Bräuer and Rainer Marggraf
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Ingo Bräuer: Department of Agricultural Economics, Environmental and Resource Economics Research Unit, Georg-August University
Rainer Marggraf: Department of Agricultural Economics, Environmental and Resource Economics Research Unit, Georg-August University

No 2004.54, Working Papers from Fondazione Eni Enrico Mattei

Abstract: The importance of ecosystem functions for humankind is well known. But only few attempts have been undertaken to estimate the economic value of these ecosystem services. In particular, indirect methods are rarely used, even though they are most suitable for the task. This discrepancy is because quantitative knowledge of changes in ecosystem functions is scarce. This paper presents a user-friendly procedure to quantify the increased N-retention in a renaturated river using easily available data. In a case study of the renaturated River Jossa (Germany) the benefits of increased nitrogen retention caused by beaver reintroduction are determined by using the replacement cost method. The quantification of chemical processes is discussed in detail, as well as the problems of defining an adequate reference scenario for the substitute costs. Results show that economic benefits from the evaluated ecosystem service (€12,000/annum) equal 12% of the total costs of the corresponding conservation scheme.

Keywords: Biodiversity conservation programmes; Cost-benefit-analysis; Replacement cost method; Ecosystem services; Nutrient retention (search for similar items in EconPapers)
JEL-codes: D61 D62 Q2 Q25 (search for similar items in EconPapers)
Date: 2004-03
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Persistent link: https://EconPapers.repec.org/RePEc:fem:femwpa:2004.54

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