Universität zu Köln

Sanchez-Arcos, Carlos ORCID: 0000-0001-7576-8063, Ueberschaar, Nico and Pohnert, Georg (2022). Aquifer system and depth specific chemical patterns in fractured-rock groundwater from the Critical Zone revealed by untargeted LC-MS-based metabolomics. Water Res., 219. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 1879-2448

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Abstract

In the Earth's Critical Zone, water plays an essential role as a collector and transporter of metabolites and their transformation products. It is generally believed that the chemical profiles of groundwater are strongly impacted by land use. However, predictors for the effects of above-ground natural and anthropogenic activities on belowground chemistry are rare. We reasoned that comparing groundwater metabolomes from different land-use sites and depths can give insight into this coupling of above and below-ground processes in the Critical Zone. This study used an LC-MS-based untargeted metabolomic approach to identify links between groundwater metabolomes from monitoring wells in fractured carbonate-/siliciclastic alternations along a hillslope of the Hainich Critical Zone Exploratory (CZE) in Thuringia, Germany. Our results identify the land-use type, aquifer system, and sampling depth as critical factors determining the differences among groundwater metabolomes. We established five groundwater metabolic clusters and correlated these to the aquifer systems, hydrogeochemistry, and microbial community composition. Our untargeted metabolomic approach reveals the limited connectivity of groundwater chemical profiles with above-ground activities and illustrates how deep the input signals can travel.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Sanchez-Arcos, Carlos UNSPECIFIED orcid.org/0000-0001-7576-8063 UNSPECIFIED Ueberschaar, Nico UNSPECIFIED UNSPECIFIED UNSPECIFIED Pohnert, Georg UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-666099
DOI:	10.1016/j.watres.2022.118566
Journal or Publication Title:	Water Res.
Volume:	219
Date:	2022
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication:	OXFORD
ISSN:	1879-2448
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language DISSOLVED ORGANIC-MATTER; EARTHS CRITICAL ZONE; LAND-USE CHANGES; TRANSFORMATION PRODUCTS; SPECTROMETRY DATA; STREPTOGRAMIN-B; SOIL; QUALITY; MACROLIDE; IMPACT Multiple languages Engineering, Environmental; Environmental Sciences; Water Resources Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/66609