Values of natural and human-made wetlands: A meta-analysis

Andrea Ghermandi, Jeroen C.J.M. Van Den Bergh, Luke M. Brander, Henri L.F. De Groot, Paulo A.L.D. Nunes

Research output: Contribution to journalArticleResearchpeer-review

148 Citations (Scopus)

Abstract

The values of goods and services provided by wetland ecosystems are examined through a meta-analysis of an expanded database of wetland value estimates and with a focus on human-made wetlands. This study extends and improves upon previous meta-analyses of the wetland valuation literature in terms of the number of observations, geographical coverage, wetland class and integrity, and the measurement of the effects of scarcity and anthropogenic pressure. We find that water quality improvement, nonconsumptive recreation, and provision of natural habitat and biodiversity are highly valued services. Substitution effects are observed through the negative correlation between values and abundance of other wetlands. Wetland values are found to increase with anthropogenic pressure. An extended metaregression model with cross effects shows that the valuation of specific services varies with the type of wetland producing them. Human-made wetlands are highly valued for biodiversity enhancement, water quality improvement, and flood control. Copyright 2010 by the American Geophysical Union.
Original languageEnglish
Article numberW12516
JournalWater Resources Research
Volume46
Issue number12
DOIs
Publication statusPublished - 1 Jan 2010

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