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Krysanova, Valentina; Wechsung, Frank; Becker, Alfred; Poschenrieder, Werner; Gräfe, Jan

doi:10.1023/a:1019020518977

Cited by 20 publications

(5 citation statements)

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“…Namely, a moderate increase up to < 100 mm yr 21 is expected in the north-western part of the basin, and a decrease down to < 120 mm yr 21 was simulated for the loess subregion located in the central part of the basin (Saxony -Anhalt). In this case we did not account for other possible effects, like decreased water use of plants when they are exposed to higher carbon dioxide levels (see such a study in Krysanova et al (1999); Krysanova and Wechsung (2002)).…”

Section: Resultsmentioning

confidence: 99%

“…The model has proven to be able to reproduce sufficiently well the observed hydrological characteristics (river discharge, groundwater table, evapotranspiration) in meso-and large subbasins of the Elbe and in the total Elbe basin (Krysanova et al 1998;Hattermann et al 2002Hattermann et al , 2004, water quality characteristics (concentrations and loads) in four mesoscale subbasins and crop yield for six major crops in the state of Brandenburg (largely overlaps with the Elbe basin) and the Elbe basin (Krysanova et al 1999(Krysanova et al , 2004. As water quality is an important aspect of this paper, an example of model validation for nitrogen dynamics -a comparison of the simulated and observed NO 3 -N concentrations in the Nuthe River, gauge Babelsberg -is shown in Figure 2.…”

Section: Model Validationmentioning

confidence: 91%

“…There have been numerous studies of the potential impact of climate change on water resources and agriculture at the regional scale over the last decade. They are reported and reviewed by the Intergovernmental Panel on Climate Change (IPCC) (Watson et al 1998;McCarthy et al 2001) and elsewhere (Arnell 1998(Arnell , 1999Reilly and Schimmelpfennig 1999;Krysanova et al 1999;Krysanova and Wechsung 2002). However, in most studies climate change impact was investigated for the hydrological regime and agriculture separately, using different tools, whereas the water quality aspect got much less consideration.…”

Section: Introductionmentioning

confidence: 99%

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Expected changes in water resources availability and water quality with respect to climate change in the Elbe River basin (Germany)

2005

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Reliable modelling of climate–water interactions at the river basin and regional scale requires development of advanced modelling approaches at scales relevant for assessing the potential effects of climate change on the hydrological cycle. These approaches should represent the atmospheric, surface and subsurface hydrological processes and take into account their characteristic temporal and spatial scales of occurrence. The paper presents a climate change impact assessment performed for the Elbe River basin in Germany (about 100 000 km2). The method used for the study combines: (a) a statistical downscaling method driven by GCM-predicted temperature trend for producing climate scenarios, and (b) a simulation technique based on an ecohydrological semi-distributed river basin model, which was thoroughly validated in advance. The overall result of the climate impact study for the basin is that the mean water discharge and the mean groundwater recharge in the Elbe basin will be most likely decreased under the expected climate change and diffuse source pollution will be diminished. Our study confirms that the uncertainty in hydrological and water quality responses to changing climate is generally higher than the uncertainty in climate input. The method is transferable to other basins in the temperate zone.

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Section: Resultsmentioning

confidence: 99%

Section: Model Validationmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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Expected changes in water resources availability and water quality with respect to climate change in the Elbe River basin (Germany)

2005

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“…The eco-hydrological model SWIM SWIM is a process-based, time continuous, semi-distributed watershed model which describes the impact of land use and land management on hydrological fluxes at the landscape scale in conjunction with plant growth dynamics and soil organic carbon and nitrogen turnover. It can be regarded as robust and well evaluated for hydrological conditions of German river-catchments (Krysanova et al, 1998;Krysanova et al, 1999;Hattermann et al, 2005a;Hattermann et al, 2005b;Huang et al, 2010). SWIM integrates the heterogeneous landscape by simulating homogeneous landscape units (i.e.…”

Section: 1mentioning

confidence: 99%

“…The integration of crop simulation approaches into hydrological models has frequently been reported (Arnold et al, 1998;Krysanova et al, 1998;Klocking et al, 2003;Liu et al, 2009;Albano et al, 2017). However, only a few studies have addressed multi-criteria model evaluation, and simultaneously addressed crop yields and hydrological aspects (Krysanova et al, 1999;Huang et al, 2006;Luo et al, 2008;Srinivasan et al, 2010). Vegetation dynamics induce an essential feedbackmechanism for hydrological fluxes in terms of root water uptake and subsequent transpiration.…”

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Evaluation of crop yield simulations of an eco-hydrological model at different scales for Germany

Gottschalk

Lüttger

Huang

et al. 2018

Field Crops Research

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Development of the ecohydrological model SWIM for regional impact studies and vulnerability assessment

Krysanova¹,

Hattermann²,

Wechsung³

2005

Hydrological Processes

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Abstract:In this paper the ecohydrological model SWIM developed for regional impact assessment is presented, and examples of approaches to climate and land use change impact studies are described. SWIM is a continuous-time semidistributed ecohydrological model, integrating hydrological processes, vegetation, nutrients (nitrogen and phosphorus) and sediment transport at the river basin scale. Its spatial disaggregation scheme has three levels: (1) basin, (2) subbasins and (3) hydrotopes within sub-basins. The model was extensively tested and validated for hydrological processes, nitrogen dynamics, crop yield and erosion (mainly in mesoscale sub-basins of the German part of the Elbe River basin). After appropriate validation in representative sub-basins, the model can be applied at the regional scale for impact studies. Particular interest in the global change impact studies is given to effects of expected changes in climate and land use on hydrological processes and agro-ecosystems, including water balance components, water quality and crop yield. This paper (a) introduces the reader to the class of process-based ecohydrological catchment scale models, (b) introduces SWIM as one such model, and (c) presents two examples of impact studies performed with SWIM for the federal state of Brandenburg (Germany), which overlaps with the lowland part of the Elbe drainage area. The impact studies provide a better understanding of the complex interactions between climate, hydrological processes and vegetation, and improve our potential adaptation to the expected changes.

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Cited by 20 publications

References 20 publications

Expected changes in water resources availability and water quality with respect to climate change in the Elbe River basin (Germany)

Expected changes in water resources availability and water quality with respect to climate change in the Elbe River basin (Germany)

Evaluation of crop yield simulations of an eco-hydrological model at different scales for Germany

Development of the ecohydrological model SWIM for regional impact studies and vulnerability assessment

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