Evaluating the use of diurnal groundwater fluctuations for estimating evapotranspiration in wetland environments: case studies in southeast England and northeast Germany
Mould, D.J.; Frahm, E.; Salzmann, Th.; Miegel, K.; Acreman, M.C.. 2010 Evaluating the use of diurnal groundwater fluctuations for estimating evapotranspiration in wetland environments: case studies in southeast England and northeast Germany. Ecohydrology, 3. 294-305. 10.1002/eco.108Before downloading, please read NORA policies.
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Wetlands are characterised by frequent saturated conditions, dense vegetation growth and thus high evapotranspiration (ET) rates. Understanding wetland processes and water re-source implications of wetland management and restoration requires estimates of evapotran-spiration rates. The analysis of diurnal groundwater fluctuations (DGF) for estimating ET has been established for nearly 80 years, yet the method is not yet well-utilised in practice due to inherent limitations. This paper assesses contemporary updates to the method to define a consistent tool and applies this to two contrasting riparian zones, in southeast England and northeast Germany. The method’s accuracy is compared to reference ET evaluation meth-ods and its utility for wetland hydrological management is assessed. Finally, practical guid-ance on how to apply the tool is provided.
|Item Type:||Publication - Article|
|Digital Object Identifier (DOI):||10.1002/eco.108|
|Programmes:||CEH Topics & Objectives 2009 - 2012 > Water > WA Topic 2 - Ecohydrological Processes|
|Additional Keywords:||evapotranspiration, wetlands, phreatophytes, groundwater, specific yield|
|NORA Subject Terms:||Ecology and Environment
|Date made live:||21 Sep 2010 15:26|
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