Water resources management—a possibility for drought mitigation in wetlands?

Dietrich, Ottfried; Koch, Hagen; Schweigert, Susanne

doi:10.2495/wrm070061

Cited by 3 publications

(3 citation statements)

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“…, ; Shouse, Ayars, & Šimůnek, ; Stenitzer, Diestel, Zenker, & Schwartengräber, ). Special extensions for existing water management models are used to connect the water management in wetlands with the water balance and management of the river basin (Dietrich, Koch & Schweigert, ; De Lange et al . , ).…”

Section: Introductionmentioning

confidence: 99%

“…Often the variably saturated soil water flow model HYDRUS-1D has been applied for such site conditions (Akhtar, Tischbein, & Awan, 2013;Karimov et al, 2014;Raesa & Deproost, 2003;Schwarzel et al, 2006;Shouse, Ayars, & Šimůnek, 2011;Stenitzer, Diestel, Zenker, & Schwartengräber, 2007). Special extensions for existing water management models are used to connect the water management in wetlands with the water balance and management of the river basin (Dietrich, Koch & Schweigert, 2007;De Lange et al, 2014). Sometimes, however, these hydrological approaches are insufficient to describe the complex relationships at shallow water table sites, including vegetation development.…”

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confidence: 99%

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Impact of groundwater regimes on water balance components of a site with a shallow water table

Dietrich

Kaiser

2017

Ecohydrology

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The management of shallow water table sites is often the subject of discussion between different interest groups, the most controversial topic being the different target groundwater levels. A good level of knowledge about the effects of the different water levels on the water budget components is a precondition for the development of compromises in well‐balanced water resource management. We used groundwater lysimeters to investigate the impact of different water level regimes on the water balance. The lysimeters were installed directly within a typical shallow water table site and had a specially designed system to control the lower boundary condition. This enabled us to simulate different management options in a realistic way. Our results show increasing evapotranspiration with higher water levels but only if the vegetation is adapted to these conditions. Adaptation may take place within a few years of higher water levels. High water levels in spring are linked to increased water storage. This can help to compensate for the higher evapotranspiration for some weeks but not for the entire season. The meteorological conditions have a large short‐term impact on the water budget, which is difficult to compensate for using long‐term water management strategies or slow‐responding vegetation development. Our results underline the complex ecohydrological dependencies in such site conditions and could be an important basis for the development or improvement of ecohydrological models.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Impact of groundwater regimes on water balance components of a site with a shallow water table

Dietrich

Kaiser

2017

Ecohydrology

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“…Further information about WBalMo is given in Kaden et al [20,21]. WBalMo has been applied on the monthly time step in several projects, mostly within the Elbe River catchment [19,22,23]. On the basis of the modelling system WBalMo a model called WBalMo Spree/Schwarze Elster has been developed by the water authorities of the German federal states Saxony, Brandenburg, and Berlin and the Lusatian and Central German Mining Management Company (LMBV) for the catchments of the Spree River, the Schwarze Elster River and the Lusatian Neisse River.…”

Section: Long Term Water Management Modelling With Wbalmomentioning

confidence: 99%

Potential impacts of climate change on natural and managed discharges of the Rivers Spree, Schwarze Elster and Lusatian Neisse, Central Europe

Pohle¹,

Koch²,

Gädeke³

et al. 2013

Water and Society

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The water balance of the Rivers Spree, Schwarze Elster and Lusatian Neisse is profoundly disturbed due to large-scale open-cast lignite mining activities and water management. Together with continental climate conditions this affects water resources and water users in the region. Driven by scenarios of the regional climate model STAR which assume increasing temperature and decreasing precipitation, two hydrological models, the Soil and Water Integrated Model SWIM and the catchment model EGMO simulate declining natural discharges in the region. Thus, decreasing managed discharges are simulated with the long term water management model WBalMo. The refinement of the simulation time step of WBalMo from months to weeks improves the consideration of climate variability and is also associated with higher simulated managed discharges in early summer. Management scenarios in terms of a reduced outlet capacity of a mining lake reservoir result in higher releases from other reservoirs and slightly reduced summer discharges in downstream river sections.

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The impact of global change on the water balance of large wetlands in the Elbe Lowland

2012

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Water resources management—a possibility for drought mitigation in wetlands?

Cited by 3 publications

References 5 publications

Impact of groundwater regimes on water balance components of a site with a shallow water table

Impact of groundwater regimes on water balance components of a site with a shallow water table

Potential impacts of climate change on natural and managed discharges of the Rivers Spree, Schwarze Elster and Lusatian Neisse, Central Europe

The impact of global change on the water balance of large wetlands in the Elbe Lowland

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