Universität zu Köln

Dorau, Kristof ORCID: 0000-0002-1815-1929, Gelhausen, Henrik, Esploer, Dirk and Mansfeldt, Tim (2015). Wetland restoration management under the aspect of climate change at a mesotrophic fen in Northern Germany. Ecol. Eng., 84. S. 84 - 92. AMSTERDAM: ELSEVIER SCIENCE BV. ISSN 1872-6992

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Abstract

Wetland restoration management is an important tool for stakeholders and practitioners to mitigate climate change and preserve ecological functioning. Various approaches to modifying the water management of a catchment for restoration purposes exist and were performed in a preservation area in northwest Germany. To validate the effect of the re-wetting practice, a monitoring network of 46 wells was established and monthly readings were taken from 1997 onwards. A declining trend in water table depth was present at 39 wells and equaled on average a lowering of 20 cm during the study period from 1997 to 2012. So far, half of the trend lines are above 40 cm below ground, which is an indicator of an effective re-wetting practice, but they will decline below this threshold until 2032 according to linear regression analysis. The progress of water table depths might be accelerated by climate change. According to the meteorological forecast, air temperatures will rise and the annual precipitation pattern will change. Thus, the climatic water balance tends toward more negative values in the summer and positive values in the winter, favoring an earlier and more intense water table draw-down. Because root water extraction from shallow groundwater is limited to a certain depth, the forecast of water table depth development according to the recent trend depicts a worst-case scenario. Nevertheless, the results emphasize that restoration management should be validated and has to be adapted in certain ways when mitigating the impact of climate change. (C) 2015 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Dorau, Kristof UNSPECIFIED orcid.org/0000-0002-1815-1929 UNSPECIFIED Gelhausen, Henrik UNSPECIFIED UNSPECIFIED UNSPECIFIED Esploer, Dirk UNSPECIFIED UNSPECIFIED UNSPECIFIED Mansfeldt, Tim UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-388219
DOI:	10.1016/j.ecoleng.2015.07.017
Journal or Publication Title:	Ecol. Eng.
Volume:	84
Page Range:	S. 84 - 92
Date:	2015
Publisher:	ELSEVIER SCIENCE BV
Place of Publication:	AMSTERDAM
ISSN:	1872-6992
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language WATER-TABLE DYNAMICS; CARBON-DIOXIDE; PEATLAND; SOILS; BOG; HYDROLOGY; EMISSIONS; TRENDS; QUEBEC Multiple languages Ecology; Engineering, Environmental; Environmental Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/38821