Loading…
River water infiltration enhances denitrification efficiency in riparian groundwater
Nitrate contamination in ground- and surface water is a persistent problem in countries with intense agriculture. The transition zone between rivers and their riparian aquifers, where river water and groundwater interact, may play an important role in mediating nitrate exports, as it can facilitate...
Saved in:
| Published in: | Water research (Oxford) 2018-03, Vol.130, p.185-199 |
|---|---|
| Main Authors: | , , , , , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| cited_by | cdi_FETCH-LOGICAL-c362t-3aee80e7792f021af01ebf1ea38ca420d21eb577ae3df7e25021679e6f5003eb3 |
|---|---|
| cites | cdi_FETCH-LOGICAL-c362t-3aee80e7792f021af01ebf1ea38ca420d21eb577ae3df7e25021679e6f5003eb3 |
| container_end_page | 199 |
| container_issue | |
| container_start_page | 185 |
| container_title | Water research (Oxford) |
| container_volume | 130 |
| creator | Trauth, Nico Musolff, Andreas Knöller, Kay Kaden, Ute S. Keller, Toralf Werban, Ulrike Fleckenstein, Jan H. |
| description | Nitrate contamination in ground- and surface water is a persistent problem in countries with intense agriculture. The transition zone between rivers and their riparian aquifers, where river water and groundwater interact, may play an important role in mediating nitrate exports, as it can facilitate intensive denitrification, which permanently removes nitrate from the aquatic system. However, the in-situ factors controlling riparian denitrification are not fully understood, as they are often strongly linked and their effects superimpose each other. In this study, we present the evaluation of hydrochemical and isotopic data from a 2-year sampling period of river water and groundwater in the riparian zone along a 3rd order river in Central Germany. Based on bi- and multivariate statistics (Spearman's rank correlation and partial least squares regression) we can show, that highest rates for oxygen consumption and denitrification in the riparian aquifer occur where the fraction of infiltrated river water and at the same time groundwater temperature, are high. River discharge and depth to groundwater are additional explanatory variables for those reaction rates, but of minor importance. Our data and analyses suggest that at locations in the riparian aquifer, which show significant river water infiltration, heterotrophic microbial reactions in the riparian zone may be fueled by bioavailable organic carbon derived from the river water. We conclude that interactions between rivers and riparian groundwater are likely to be a key control of nitrate removal and should be considered as a measure to mitigate high nitrate exports from agricultural catchments.
[Display omitted]
•Hydrochemical and isotopic data of 2-year sampling period in a riparian zone.•Temperature can explain 67.8% of the variance in DO and 66.2% in δ15N.•The higher the river water content in groundwater the higher is δ15N enrichment.•Reactions depend on bioavailable carbon delivered by infiltrating river water. |
| doi_str_mv | 10.1016/j.watres.2017.11.058 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1975038398</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0043135417309867</els_id><sourcerecordid>1975038398</sourcerecordid><originalsourceid>FETCH-LOGICAL-c362t-3aee80e7792f021af01ebf1ea38ca420d21eb577ae3df7e25021679e6f5003eb3</originalsourceid><addsrcrecordid>eNp9kE1LxDAQhoMo7rr6D0R69NI6SdomvQgifsGCIOs5ZNuJZumma9Ku7L83-6FHL8kM877vMA8hlxQyCrS8WWTfuvcYMgZUZJRmUMgjMqZSVCnLc3lMxgA5Tykv8hE5C2EBAIzx6pSMWBULkNWYzN7sGn0So-JrnbFt73VvO5eg-9SuxpA06GzvrbH1YWBiadHVm2hIvF1pb7VLPnw3uGYXdE5OjG4DXhz-CXl_fJjdP6fT16eX-7tpWvOS9SnXiBJQiIoZYFQboDg3FDWXtc4ZNCz2hRAaeWMEsiKKSlFhaQoAjnM-Idf73JXvvgYMvVraUGPbaofdEBStRAFc8kpGab6X1r4LwaNRK2-X2m8UBbXlqRZqz1NteSpKVeQZbVeHDcN8ic2f6RdgFNzuBRjvXFv0KuzYYGM91r1qOvv_hh_lkYqX</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1975038398</pqid></control><display><type>article</type><title>River water infiltration enhances denitrification efficiency in riparian groundwater</title><source>Elsevier</source><creator>Trauth, Nico ; Musolff, Andreas ; Knöller, Kay ; Kaden, Ute S. ; Keller, Toralf ; Werban, Ulrike ; Fleckenstein, Jan H.</creator><creatorcontrib>Trauth, Nico ; Musolff, Andreas ; Knöller, Kay ; Kaden, Ute S. ; Keller, Toralf ; Werban, Ulrike ; Fleckenstein, Jan H.</creatorcontrib><description>Nitrate contamination in ground- and surface water is a persistent problem in countries with intense agriculture. The transition zone between rivers and their riparian aquifers, where river water and groundwater interact, may play an important role in mediating nitrate exports, as it can facilitate intensive denitrification, which permanently removes nitrate from the aquatic system. However, the in-situ factors controlling riparian denitrification are not fully understood, as they are often strongly linked and their effects superimpose each other. In this study, we present the evaluation of hydrochemical and isotopic data from a 2-year sampling period of river water and groundwater in the riparian zone along a 3rd order river in Central Germany. Based on bi- and multivariate statistics (Spearman's rank correlation and partial least squares regression) we can show, that highest rates for oxygen consumption and denitrification in the riparian aquifer occur where the fraction of infiltrated river water and at the same time groundwater temperature, are high. River discharge and depth to groundwater are additional explanatory variables for those reaction rates, but of minor importance. Our data and analyses suggest that at locations in the riparian aquifer, which show significant river water infiltration, heterotrophic microbial reactions in the riparian zone may be fueled by bioavailable organic carbon derived from the river water. We conclude that interactions between rivers and riparian groundwater are likely to be a key control of nitrate removal and should be considered as a measure to mitigate high nitrate exports from agricultural catchments.
[Display omitted]
•Hydrochemical and isotopic data of 2-year sampling period in a riparian zone.•Temperature can explain 67.8% of the variance in DO and 66.2% in δ15N.•The higher the river water content in groundwater the higher is δ15N enrichment.•Reactions depend on bioavailable carbon delivered by infiltrating river water.</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/j.watres.2017.11.058</identifier><identifier>PMID: 29223089</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Agriculture ; Denitrification ; Environmental Monitoring ; Fresh Water ; Germany ; Groundwater - chemistry ; Nitrate contamination ; Nitrate stable isotopes ; Nitrates - analysis ; Nitrates - chemistry ; Riparian zone ; River-groundwater interaction ; Rivers - chemistry ; Water Pollutants, Chemical - analysis ; Water Pollutants, Chemical - chemistry ; Water Quality</subject><ispartof>Water research (Oxford), 2018-03, Vol.130, p.185-199</ispartof><rights>2017 Elsevier Ltd</rights><rights>Copyright © 2017 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c362t-3aee80e7792f021af01ebf1ea38ca420d21eb577ae3df7e25021679e6f5003eb3</citedby><cites>FETCH-LOGICAL-c362t-3aee80e7792f021af01ebf1ea38ca420d21eb577ae3df7e25021679e6f5003eb3</cites><orcidid>0000-0002-2958-0147</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,786,790,27957,27958</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29223089$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Trauth, Nico</creatorcontrib><creatorcontrib>Musolff, Andreas</creatorcontrib><creatorcontrib>Knöller, Kay</creatorcontrib><creatorcontrib>Kaden, Ute S.</creatorcontrib><creatorcontrib>Keller, Toralf</creatorcontrib><creatorcontrib>Werban, Ulrike</creatorcontrib><creatorcontrib>Fleckenstein, Jan H.</creatorcontrib><title>River water infiltration enhances denitrification efficiency in riparian groundwater</title><title>Water research (Oxford)</title><addtitle>Water Res</addtitle><description>Nitrate contamination in ground- and surface water is a persistent problem in countries with intense agriculture. The transition zone between rivers and their riparian aquifers, where river water and groundwater interact, may play an important role in mediating nitrate exports, as it can facilitate intensive denitrification, which permanently removes nitrate from the aquatic system. However, the in-situ factors controlling riparian denitrification are not fully understood, as they are often strongly linked and their effects superimpose each other. In this study, we present the evaluation of hydrochemical and isotopic data from a 2-year sampling period of river water and groundwater in the riparian zone along a 3rd order river in Central Germany. Based on bi- and multivariate statistics (Spearman's rank correlation and partial least squares regression) we can show, that highest rates for oxygen consumption and denitrification in the riparian aquifer occur where the fraction of infiltrated river water and at the same time groundwater temperature, are high. River discharge and depth to groundwater are additional explanatory variables for those reaction rates, but of minor importance. Our data and analyses suggest that at locations in the riparian aquifer, which show significant river water infiltration, heterotrophic microbial reactions in the riparian zone may be fueled by bioavailable organic carbon derived from the river water. We conclude that interactions between rivers and riparian groundwater are likely to be a key control of nitrate removal and should be considered as a measure to mitigate high nitrate exports from agricultural catchments.
[Display omitted]
•Hydrochemical and isotopic data of 2-year sampling period in a riparian zone.•Temperature can explain 67.8% of the variance in DO and 66.2% in δ15N.•The higher the river water content in groundwater the higher is δ15N enrichment.•Reactions depend on bioavailable carbon delivered by infiltrating river water.</description><subject>Agriculture</subject><subject>Denitrification</subject><subject>Environmental Monitoring</subject><subject>Fresh Water</subject><subject>Germany</subject><subject>Groundwater - chemistry</subject><subject>Nitrate contamination</subject><subject>Nitrate stable isotopes</subject><subject>Nitrates - analysis</subject><subject>Nitrates - chemistry</subject><subject>Riparian zone</subject><subject>River-groundwater interaction</subject><subject>Rivers - chemistry</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Pollutants, Chemical - chemistry</subject><subject>Water Quality</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LxDAQhoMo7rr6D0R69NI6SdomvQgifsGCIOs5ZNuJZumma9Ku7L83-6FHL8kM877vMA8hlxQyCrS8WWTfuvcYMgZUZJRmUMgjMqZSVCnLc3lMxgA5Tykv8hE5C2EBAIzx6pSMWBULkNWYzN7sGn0So-JrnbFt73VvO5eg-9SuxpA06GzvrbH1YWBiadHVm2hIvF1pb7VLPnw3uGYXdE5OjG4DXhz-CXl_fJjdP6fT16eX-7tpWvOS9SnXiBJQiIoZYFQboDg3FDWXtc4ZNCz2hRAaeWMEsiKKSlFhaQoAjnM-Idf73JXvvgYMvVraUGPbaofdEBStRAFc8kpGab6X1r4LwaNRK2-X2m8UBbXlqRZqz1NteSpKVeQZbVeHDcN8ic2f6RdgFNzuBRjvXFv0KuzYYGM91r1qOvv_hh_lkYqX</recordid><startdate>20180301</startdate><enddate>20180301</enddate><creator>Trauth, Nico</creator><creator>Musolff, Andreas</creator><creator>Knöller, Kay</creator><creator>Kaden, Ute S.</creator><creator>Keller, Toralf</creator><creator>Werban, Ulrike</creator><creator>Fleckenstein, Jan H.</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-2958-0147</orcidid></search><sort><creationdate>20180301</creationdate><title>River water infiltration enhances denitrification efficiency in riparian groundwater</title><author>Trauth, Nico ; Musolff, Andreas ; Knöller, Kay ; Kaden, Ute S. ; Keller, Toralf ; Werban, Ulrike ; Fleckenstein, Jan H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c362t-3aee80e7792f021af01ebf1ea38ca420d21eb577ae3df7e25021679e6f5003eb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Agriculture</topic><topic>Denitrification</topic><topic>Environmental Monitoring</topic><topic>Fresh Water</topic><topic>Germany</topic><topic>Groundwater - chemistry</topic><topic>Nitrate contamination</topic><topic>Nitrate stable isotopes</topic><topic>Nitrates - analysis</topic><topic>Nitrates - chemistry</topic><topic>Riparian zone</topic><topic>River-groundwater interaction</topic><topic>Rivers - chemistry</topic><topic>Water Pollutants, Chemical - analysis</topic><topic>Water Pollutants, Chemical - chemistry</topic><topic>Water Quality</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Trauth, Nico</creatorcontrib><creatorcontrib>Musolff, Andreas</creatorcontrib><creatorcontrib>Knöller, Kay</creatorcontrib><creatorcontrib>Kaden, Ute S.</creatorcontrib><creatorcontrib>Keller, Toralf</creatorcontrib><creatorcontrib>Werban, Ulrike</creatorcontrib><creatorcontrib>Fleckenstein, Jan H.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Water research (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Trauth, Nico</au><au>Musolff, Andreas</au><au>Knöller, Kay</au><au>Kaden, Ute S.</au><au>Keller, Toralf</au><au>Werban, Ulrike</au><au>Fleckenstein, Jan H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>River water infiltration enhances denitrification efficiency in riparian groundwater</atitle><jtitle>Water research (Oxford)</jtitle><addtitle>Water Res</addtitle><date>2018-03-01</date><risdate>2018</risdate><volume>130</volume><spage>185</spage><epage>199</epage><pages>185-199</pages><issn>0043-1354</issn><eissn>1879-2448</eissn><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><abstract>Nitrate contamination in ground- and surface water is a persistent problem in countries with intense agriculture. The transition zone between rivers and their riparian aquifers, where river water and groundwater interact, may play an important role in mediating nitrate exports, as it can facilitate intensive denitrification, which permanently removes nitrate from the aquatic system. However, the in-situ factors controlling riparian denitrification are not fully understood, as they are often strongly linked and their effects superimpose each other. In this study, we present the evaluation of hydrochemical and isotopic data from a 2-year sampling period of river water and groundwater in the riparian zone along a 3rd order river in Central Germany. Based on bi- and multivariate statistics (Spearman's rank correlation and partial least squares regression) we can show, that highest rates for oxygen consumption and denitrification in the riparian aquifer occur where the fraction of infiltrated river water and at the same time groundwater temperature, are high. River discharge and depth to groundwater are additional explanatory variables for those reaction rates, but of minor importance. Our data and analyses suggest that at locations in the riparian aquifer, which show significant river water infiltration, heterotrophic microbial reactions in the riparian zone may be fueled by bioavailable organic carbon derived from the river water. We conclude that interactions between rivers and riparian groundwater are likely to be a key control of nitrate removal and should be considered as a measure to mitigate high nitrate exports from agricultural catchments.
[Display omitted]
•Hydrochemical and isotopic data of 2-year sampling period in a riparian zone.•Temperature can explain 67.8% of the variance in DO and 66.2% in δ15N.•The higher the river water content in groundwater the higher is δ15N enrichment.•Reactions depend on bioavailable carbon delivered by infiltrating river water.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>29223089</pmid><doi>10.1016/j.watres.2017.11.058</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0002-2958-0147</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0043-1354 |
| ispartof | Water research (Oxford), 2018-03, Vol.130, p.185-199 |
| issn | 0043-1354 1879-2448 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1975038398 |
| source | Elsevier |
| subjects | Agriculture Denitrification Environmental Monitoring Fresh Water Germany Groundwater - chemistry Nitrate contamination Nitrate stable isotopes Nitrates - analysis Nitrates - chemistry Riparian zone River-groundwater interaction Rivers - chemistry Water Pollutants, Chemical - analysis Water Pollutants, Chemical - chemistry Water Quality |
| title | River water infiltration enhances denitrification efficiency in riparian groundwater |
| url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-09-21T13%3A53%3A11IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=River%20water%20infiltration%20enhances%20denitrification%20efficiency%20in%20riparian%20groundwater&rft.jtitle=Water%20research%20(Oxford)&rft.au=Trauth,%20Nico&rft.date=2018-03-01&rft.volume=130&rft.spage=185&rft.epage=199&rft.pages=185-199&rft.issn=0043-1354&rft.eissn=1879-2448&rft_id=info:doi/10.1016/j.watres.2017.11.058&rft_dat=%3Cproquest_cross%3E1975038398%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c362t-3aee80e7792f021af01ebf1ea38ca420d21eb577ae3df7e25021679e6f5003eb3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1975038398&rft_id=info:pmid/29223089&rfr_iscdi=true |