Hydrological impact assessment of afforestation and change in tree-species composition: A regional case study for the Federal State of Brandenburg (Germany)

Martin Wattenbach, Marc Zebisch, Fred Hattermann, Pia Gottschalk, Horst Goemann, Peter Kreins, Franz Badeck, Petra Lasch, Felicitas Suckow, Frank Wechsung

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Policy changes are often implemented without the assessment of their full environmental impact. We investigate the hydrological effects of changes in forest area triggered by shifts in European agricultural policy, and changes in species composition caused by decisions of regional forest authorities. The scenarios were modelled for the Federal State of Brandenburg (Germany) on a 50 m grid scale using the SWIM (Soil Water Integrated Model) model utilising spatially-explicit land-use patterns.

The results suggest a negative impact of afforestation on abandoned arable land (9.4% total state area) on the regional water balance, causing an increase in mean annual. evapotranspiration of 3.7% at 100% afforestation when compared to no afforestation. The retatively small. annual change covers a much more pronounced seasonal effect, leading to an increase in evapotranspiration by 25.1% in spring with a strong feedback to other hydrological. components. In contrast, a change in species composition in existing forest (29.2% total state area) from predominantly Scots Pine to Common Oak decreased the evapotranspiration by 3.4%, accompanied by a much weaker but apparent seasonal pattern. The changes show a high spatial heterogeneity that is masked by a linear mean response for the total state area. (c) 2007 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)1-17
Number of pages17
JournalJournal of Hydrology
Volume346
Issue number1-2
DOIs
Publication statusPublished - 15 Nov 2007

Keywords

  • land use change
  • CAP
  • evapotranspiration
  • groundwater recharge
  • Scots Pine
  • Common Oak
  • land-use change
  • ecohydrological model swim
  • water yield
  • vegetation changes
  • climate-change
  • catchment
  • environment
  • forests
  • carbon
  • sequestration

Cite this

Hydrological impact assessment of afforestation and change in tree-species composition : A regional case study for the Federal State of Brandenburg (Germany). / Wattenbach, Martin; Zebisch, Marc; Hattermann, Fred; Gottschalk, Pia; Goemann, Horst; Kreins, Peter; Badeck, Franz; Lasch, Petra; Suckow, Felicitas; Wechsung, Frank.

In: Journal of Hydrology, Vol. 346, No. 1-2, 15.11.2007, p. 1-17.

Research output: Contribution to journalArticle

Wattenbach, M, Zebisch, M, Hattermann, F, Gottschalk, P, Goemann, H, Kreins, P, Badeck, F, Lasch, P, Suckow, F & Wechsung, F 2007, 'Hydrological impact assessment of afforestation and change in tree-species composition: A regional case study for the Federal State of Brandenburg (Germany)', Journal of Hydrology, vol. 346, no. 1-2, pp. 1-17. https://doi.org/10.1016/j.jhydrol.2007.08.005
Wattenbach, Martin ; Zebisch, Marc ; Hattermann, Fred ; Gottschalk, Pia ; Goemann, Horst ; Kreins, Peter ; Badeck, Franz ; Lasch, Petra ; Suckow, Felicitas ; Wechsung, Frank. / Hydrological impact assessment of afforestation and change in tree-species composition : A regional case study for the Federal State of Brandenburg (Germany). In: Journal of Hydrology. 2007 ; Vol. 346, No. 1-2. pp. 1-17.
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AB - Policy changes are often implemented without the assessment of their full environmental impact. We investigate the hydrological effects of changes in forest area triggered by shifts in European agricultural policy, and changes in species composition caused by decisions of regional forest authorities. The scenarios were modelled for the Federal State of Brandenburg (Germany) on a 50 m grid scale using the SWIM (Soil Water Integrated Model) model utilising spatially-explicit land-use patterns.The results suggest a negative impact of afforestation on abandoned arable land (9.4% total state area) on the regional water balance, causing an increase in mean annual. evapotranspiration of 3.7% at 100% afforestation when compared to no afforestation. The retatively small. annual change covers a much more pronounced seasonal effect, leading to an increase in evapotranspiration by 25.1% in spring with a strong feedback to other hydrological. components. In contrast, a change in species composition in existing forest (29.2% total state area) from predominantly Scots Pine to Common Oak decreased the evapotranspiration by 3.4%, accompanied by a much weaker but apparent seasonal pattern. The changes show a high spatial heterogeneity that is masked by a linear mean response for the total state area. (c) 2007 Elsevier B.V. All rights reserved.

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