Approaches to valuing the hidden hydrological services of wetland ecosystems |
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| Affiliation: | 1. Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Science, Beijing 100101, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. Chinese Research Academy of Environmental Sciences, Beijing 100012, China;1. School of Biological Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen AB24 3UU, Scotland, UK;2. The James Hutton Institute, Craigiebuckler, Aberdeen AB15 8 QH, UK;3. Carbon Foundation of East Africa, Plot 15 Lubowa Estate, Kampala, Uganda;4. Scotland’s Rural College, W Mains Rd, Edinburgh EH9 3JG, Scotland, UK;1. Aarhus University, Foulum, Department of Agroecology, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark;2. Aarhus University, Department of Bioscience, Ny Munkegade 116, DK-8000 Aarhus C, Denmark;1. School of Economics and Management, Zhejiang University of Science and Technology, Hangzhou 310023, China;2. College of Economics and Management, Zhejiang University of Technology, Hangzhou 310023, China;1. PBL Netherlands Environmental Assessment Agency, P.O. Box 30314, 2500 GH The Hague, The Netherlands;2. Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), P.O. Box 50, 6700 AB Wageningen, The Netherlands;3. Aquatic Ecosystems Group, IHE Delft Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands;4. Aquatic Ecology and Water Quality Management Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, The Netherlands;5. Institute for Land, Water and Society, Charles Sturt University, Albury, NSW, Australia;6. Water Systems and Global Change Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, The Netherlands;7. Ecology and Biodiversity, Institute of Environmental Biology, Utrecht University, Padualaan 8, NL-3584 CH Utrecht, The Netherlands |
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| Abstract: | This paper investigates the role of the production function approach in capturing the value of hydrological services of wetland ecosystems. Hydrological research in the Hadejia-Nguru wetlands in northern Nigeria suggests that the major role of the wet season inundation of the wetlands is in recharging the underlying aquifers. This paper shows that the hydrological services extend beyond direct use values, and have a significant economic value associated with them. Whereas the direct benefits provided by the wetlands, such as floodplain agriculture, fishing and forestry, have previously been assessed, this paper synthesizes the results of two approaches to capture the value of indirect benefits derived from the role of the wetlands in replenishing and maintaining groundwater resources within the wetland area. |
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