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Groundwater fauna in an urban area – natural or affected?

Koch, Fabien 1; Menberg, Kathrin ORCID iD icon 1; Schweikert, Svenja 1; Spengler, Cornelia; Hahn, Hans Jürgen; Blum, Philipp 1
1 Institut für Angewandte Geowissenschaften (AGW), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

In Germany, 70 % of the drinking water demand is met by groundwater, for which the quality is the product of multiple physical–chemical and biological processes. As healthy groundwater ecosystems help to provide clean drinking water, it is necessary to assess their ecological conditions. This is particularly true for densely populated urban areas, where faunistic groundwater investigations are still scarce. The aim of this study is, therefore, to provide a first assessment of the groundwater fauna in an urban area. Thus, we examine the ecological status of an anthropogenically influenced aquifer by analysing fauna in 39 groundwater monitoring wells in the city of Karlsruhe (Germany). For classification, we apply the groundwater ecosystem status index (GESI), in which a threshold of more than 70 % of crustaceans and less than 20 % of oligochaetes serves as an indication for very good and good ecological conditions. Our study reveals that only 35 % of the wells in the residential, commercial and industrial areas and 50 % of wells in the forested area fulfil these criteria. However, the study did not find clear spatial patterns with respect to land use and other anthropogenic impacts, in particular with respect to groundwater temperature. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000135187
Veröffentlicht am 12.07.2021
DOI: 10.5194/hess-25-3053-2021
Zitationen: 4
Web of Science
Zitationen: 3
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1607-7938
KITopen-ID: 1000135187
Erschienen in Hydrology and earth system sciences
Verlag Copernicus Publications
Band 25
Heft 6
Seiten 3053–3070
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 08.06.2021
Nachgewiesen in Scopus
Web of Science
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