Relationship between groundwater levels and oxygen availability in fen peat soils
•Ground water levels cannot be directly translated into oxygen availability.•The hypoxic zone is of different extent above groundwater levels (GWL).•Full oxygen saturation never occurred in 20 cm soil depth, even at GWL of −80 cm.•The offset between groundwater level and oxygen availability is site...
Gespeichert in:
| Veröffentlicht in: | Ecological engineering 2018-09, Vol.120, p.85-93 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 93 |
|---|---|
| container_issue | |
| container_start_page | 85 |
| container_title | Ecological engineering |
| container_volume | 120 |
| creator | Dickopp, Jan Lengerer, Andreas Kazda, Marian |
| description | •Ground water levels cannot be directly translated into oxygen availability.•The hypoxic zone is of different extent above groundwater levels (GWL).•Full oxygen saturation never occurred in 20 cm soil depth, even at GWL of −80 cm.•The offset between groundwater level and oxygen availability is site specific.•Higher groundwater levels are needed for anoxic conditions on extensified sites.
Groundwater levels (GWL) are a major controlling factor for aeration and organic matter turnover in wetland soils but little is known about this relationship under field conditions. This study tested how the O2 availability in fen peat soils is related to groundwater levels. The study encompassed five sites over a wide range of land use intensity. Ground water levels and soil oxygen saturation in 5 cm and 20 cm depth were measured biweekly in three replicates per site over periods of 2–3 years.
The O2 levels were not linearly proportional to the GWL, but changed sharply from anoxic to nearly atmospheric levels depending on the positions of water table. Binary logistic regression analyses (LRA) were calculated for the individual sites in order to predict the threshold GWL for defined probabilities of hypoxic or oxic conditions in 5 cm depth. The GWLs for 95% probability of oxic conditions were markedly lower for the managed grasslands (−116 cm and −89 cm to surface level, respectively) than for the unmanaged pasture and the sedge fen (−60 cm and −38 cm). Hypoxic conditions required GWLs close to the surface (7 cm and −2 cm for the pasture and the restored site, respectively) while in 5 cm soil depth managed grasslands remained hypoxic even at GWLs of −8 cm and −28 cm. In 20 cm soil depth, full oxygen saturation never occurred even at GWL as low as 80 cm. Threshold GWL required for 95% probability of oxic conditions was higher with increasing porosity and rooting density. The offset between GWL and oxic conditions can be used for hydrological wetland management, especially for restoration efforts. |
| doi_str_mv | 10.1016/j.ecoleng.2018.05.033 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2124116893</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0925857418301952</els_id><sourcerecordid>2124116893</sourcerecordid><originalsourceid>FETCH-LOGICAL-c374t-55306e79de31e0caf30acecfab1ab51347bee084a4ca06aaf59e7ab5236dc1f83</originalsourceid><addsrcrecordid>eNqFkFtLwzAUx4MoOKcfQQj43Jo0TS9PIsMbDETR53Cans6U2tQk29y3N2N79-nA-V8O50fINWcpZ7y47VPUdsBxlWaMVymTKRPihMx4VWZJUdfZKZmxOpNJJcv8nFx43zPGykzWM_L2jgMEY0f_ZSbaYNgijnTl7HpstxDQ0QE3OHgKY0vt724VVdiAGaAxgwk7akbaxd2EEKi3ZvCX5KyDwePVcc7J5-PDx-I5Wb4-vSzul4kWZR4SKQUrsKxbFByZhk4w0Kg7aDg0kou8bBBZlUOugRUAnayxjEomilbzrhJzcnPonZz9WaMPqrdrN8aTKuNZznlR1SK65MGlnfXeYacmZ77B7RRnak9P9epIT-3pKSZVpBdzd4dc_B03Bp3y2uCosTUOdVCtNf80_AEfX30a</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2124116893</pqid></control><display><type>article</type><title>Relationship between groundwater levels and oxygen availability in fen peat soils</title><source>Elsevier ScienceDirect Journals</source><creator>Dickopp, Jan ; Lengerer, Andreas ; Kazda, Marian</creator><creatorcontrib>Dickopp, Jan ; Lengerer, Andreas ; Kazda, Marian</creatorcontrib><description>•Ground water levels cannot be directly translated into oxygen availability.•The hypoxic zone is of different extent above groundwater levels (GWL).•Full oxygen saturation never occurred in 20 cm soil depth, even at GWL of −80 cm.•The offset between groundwater level and oxygen availability is site specific.•Higher groundwater levels are needed for anoxic conditions on extensified sites.
Groundwater levels (GWL) are a major controlling factor for aeration and organic matter turnover in wetland soils but little is known about this relationship under field conditions. This study tested how the O2 availability in fen peat soils is related to groundwater levels. The study encompassed five sites over a wide range of land use intensity. Ground water levels and soil oxygen saturation in 5 cm and 20 cm depth were measured biweekly in three replicates per site over periods of 2–3 years.
The O2 levels were not linearly proportional to the GWL, but changed sharply from anoxic to nearly atmospheric levels depending on the positions of water table. Binary logistic regression analyses (LRA) were calculated for the individual sites in order to predict the threshold GWL for defined probabilities of hypoxic or oxic conditions in 5 cm depth. The GWLs for 95% probability of oxic conditions were markedly lower for the managed grasslands (−116 cm and −89 cm to surface level, respectively) than for the unmanaged pasture and the sedge fen (−60 cm and −38 cm). Hypoxic conditions required GWLs close to the surface (7 cm and −2 cm for the pasture and the restored site, respectively) while in 5 cm soil depth managed grasslands remained hypoxic even at GWLs of −8 cm and −28 cm. In 20 cm soil depth, full oxygen saturation never occurred even at GWL as low as 80 cm. Threshold GWL required for 95% probability of oxic conditions was higher with increasing porosity and rooting density. The offset between GWL and oxic conditions can be used for hydrological wetland management, especially for restoration efforts.</description><identifier>ISSN: 0925-8574</identifier><identifier>EISSN: 1872-6992</identifier><identifier>DOI: 10.1016/j.ecoleng.2018.05.033</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Aeration ; Anoxia ; Availability ; Depth ; Environmental restoration ; Fens ; Grassland management ; Grasslands ; Groundwater ; Groundwater levels ; Groundwater table ; Hydrology ; Hypoxia ; Hypoxic conditions ; Land use ; Organic matter ; Oxic conditions ; Oxygen ; Oxygen content ; Pasture ; Peat ; Peat soils ; Porosity ; Probability theory ; Regression analysis ; Restoration ; Rooting ; Rooting density ; Saturated soils ; Saturation ; Soil ; Soil conservation ; Soil depth ; Soil management ; Soil porosity ; Soil water ; Statistical analysis ; Water levels ; Water table ; Wetland management ; Wetland restoration ; Wetlands</subject><ispartof>Ecological engineering, 2018-09, Vol.120, p.85-93</ispartof><rights>2018 Elsevier B.V.</rights><rights>Copyright Elsevier BV Sep 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c374t-55306e79de31e0caf30acecfab1ab51347bee084a4ca06aaf59e7ab5236dc1f83</citedby><cites>FETCH-LOGICAL-c374t-55306e79de31e0caf30acecfab1ab51347bee084a4ca06aaf59e7ab5236dc1f83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0925857418301952$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Dickopp, Jan</creatorcontrib><creatorcontrib>Lengerer, Andreas</creatorcontrib><creatorcontrib>Kazda, Marian</creatorcontrib><title>Relationship between groundwater levels and oxygen availability in fen peat soils</title><title>Ecological engineering</title><description>•Ground water levels cannot be directly translated into oxygen availability.•The hypoxic zone is of different extent above groundwater levels (GWL).•Full oxygen saturation never occurred in 20 cm soil depth, even at GWL of −80 cm.•The offset between groundwater level and oxygen availability is site specific.•Higher groundwater levels are needed for anoxic conditions on extensified sites.
Groundwater levels (GWL) are a major controlling factor for aeration and organic matter turnover in wetland soils but little is known about this relationship under field conditions. This study tested how the O2 availability in fen peat soils is related to groundwater levels. The study encompassed five sites over a wide range of land use intensity. Ground water levels and soil oxygen saturation in 5 cm and 20 cm depth were measured biweekly in three replicates per site over periods of 2–3 years.
The O2 levels were not linearly proportional to the GWL, but changed sharply from anoxic to nearly atmospheric levels depending on the positions of water table. Binary logistic regression analyses (LRA) were calculated for the individual sites in order to predict the threshold GWL for defined probabilities of hypoxic or oxic conditions in 5 cm depth. The GWLs for 95% probability of oxic conditions were markedly lower for the managed grasslands (−116 cm and −89 cm to surface level, respectively) than for the unmanaged pasture and the sedge fen (−60 cm and −38 cm). Hypoxic conditions required GWLs close to the surface (7 cm and −2 cm for the pasture and the restored site, respectively) while in 5 cm soil depth managed grasslands remained hypoxic even at GWLs of −8 cm and −28 cm. In 20 cm soil depth, full oxygen saturation never occurred even at GWL as low as 80 cm. Threshold GWL required for 95% probability of oxic conditions was higher with increasing porosity and rooting density. The offset between GWL and oxic conditions can be used for hydrological wetland management, especially for restoration efforts.</description><subject>Aeration</subject><subject>Anoxia</subject><subject>Availability</subject><subject>Depth</subject><subject>Environmental restoration</subject><subject>Fens</subject><subject>Grassland management</subject><subject>Grasslands</subject><subject>Groundwater</subject><subject>Groundwater levels</subject><subject>Groundwater table</subject><subject>Hydrology</subject><subject>Hypoxia</subject><subject>Hypoxic conditions</subject><subject>Land use</subject><subject>Organic matter</subject><subject>Oxic conditions</subject><subject>Oxygen</subject><subject>Oxygen content</subject><subject>Pasture</subject><subject>Peat</subject><subject>Peat soils</subject><subject>Porosity</subject><subject>Probability theory</subject><subject>Regression analysis</subject><subject>Restoration</subject><subject>Rooting</subject><subject>Rooting density</subject><subject>Saturated soils</subject><subject>Saturation</subject><subject>Soil</subject><subject>Soil conservation</subject><subject>Soil depth</subject><subject>Soil management</subject><subject>Soil porosity</subject><subject>Soil water</subject><subject>Statistical analysis</subject><subject>Water levels</subject><subject>Water table</subject><subject>Wetland management</subject><subject>Wetland restoration</subject><subject>Wetlands</subject><issn>0925-8574</issn><issn>1872-6992</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqFkFtLwzAUx4MoOKcfQQj43Jo0TS9PIsMbDETR53Cans6U2tQk29y3N2N79-nA-V8O50fINWcpZ7y47VPUdsBxlWaMVymTKRPihMx4VWZJUdfZKZmxOpNJJcv8nFx43zPGykzWM_L2jgMEY0f_ZSbaYNgijnTl7HpstxDQ0QE3OHgKY0vt724VVdiAGaAxgwk7akbaxd2EEKi3ZvCX5KyDwePVcc7J5-PDx-I5Wb4-vSzul4kWZR4SKQUrsKxbFByZhk4w0Kg7aDg0kou8bBBZlUOugRUAnayxjEomilbzrhJzcnPonZz9WaMPqrdrN8aTKuNZznlR1SK65MGlnfXeYacmZ77B7RRnak9P9epIT-3pKSZVpBdzd4dc_B03Bp3y2uCosTUOdVCtNf80_AEfX30a</recordid><startdate>20180901</startdate><enddate>20180901</enddate><creator>Dickopp, Jan</creator><creator>Lengerer, Andreas</creator><creator>Kazda, Marian</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7QO</scope><scope>7SN</scope><scope>7T7</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H97</scope><scope>L.G</scope><scope>P64</scope></search><sort><creationdate>20180901</creationdate><title>Relationship between groundwater levels and oxygen availability in fen peat soils</title><author>Dickopp, Jan ; Lengerer, Andreas ; Kazda, Marian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c374t-55306e79de31e0caf30acecfab1ab51347bee084a4ca06aaf59e7ab5236dc1f83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Aeration</topic><topic>Anoxia</topic><topic>Availability</topic><topic>Depth</topic><topic>Environmental restoration</topic><topic>Fens</topic><topic>Grassland management</topic><topic>Grasslands</topic><topic>Groundwater</topic><topic>Groundwater levels</topic><topic>Groundwater table</topic><topic>Hydrology</topic><topic>Hypoxia</topic><topic>Hypoxic conditions</topic><topic>Land use</topic><topic>Organic matter</topic><topic>Oxic conditions</topic><topic>Oxygen</topic><topic>Oxygen content</topic><topic>Pasture</topic><topic>Peat</topic><topic>Peat soils</topic><topic>Porosity</topic><topic>Probability theory</topic><topic>Regression analysis</topic><topic>Restoration</topic><topic>Rooting</topic><topic>Rooting density</topic><topic>Saturated soils</topic><topic>Saturation</topic><topic>Soil</topic><topic>Soil conservation</topic><topic>Soil depth</topic><topic>Soil management</topic><topic>Soil porosity</topic><topic>Soil water</topic><topic>Statistical analysis</topic><topic>Water levels</topic><topic>Water table</topic><topic>Wetland management</topic><topic>Wetland restoration</topic><topic>Wetlands</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dickopp, Jan</creatorcontrib><creatorcontrib>Lengerer, Andreas</creatorcontrib><creatorcontrib>Kazda, Marian</creatorcontrib><collection>CrossRef</collection><collection>Aqualine</collection><collection>Biotechnology Research Abstracts</collection><collection>Ecology Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Ecological engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dickopp, Jan</au><au>Lengerer, Andreas</au><au>Kazda, Marian</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Relationship between groundwater levels and oxygen availability in fen peat soils</atitle><jtitle>Ecological engineering</jtitle><date>2018-09-01</date><risdate>2018</risdate><volume>120</volume><spage>85</spage><epage>93</epage><pages>85-93</pages><issn>0925-8574</issn><eissn>1872-6992</eissn><abstract>•Ground water levels cannot be directly translated into oxygen availability.•The hypoxic zone is of different extent above groundwater levels (GWL).•Full oxygen saturation never occurred in 20 cm soil depth, even at GWL of −80 cm.•The offset between groundwater level and oxygen availability is site specific.•Higher groundwater levels are needed for anoxic conditions on extensified sites.
Groundwater levels (GWL) are a major controlling factor for aeration and organic matter turnover in wetland soils but little is known about this relationship under field conditions. This study tested how the O2 availability in fen peat soils is related to groundwater levels. The study encompassed five sites over a wide range of land use intensity. Ground water levels and soil oxygen saturation in 5 cm and 20 cm depth were measured biweekly in three replicates per site over periods of 2–3 years.
The O2 levels were not linearly proportional to the GWL, but changed sharply from anoxic to nearly atmospheric levels depending on the positions of water table. Binary logistic regression analyses (LRA) were calculated for the individual sites in order to predict the threshold GWL for defined probabilities of hypoxic or oxic conditions in 5 cm depth. The GWLs for 95% probability of oxic conditions were markedly lower for the managed grasslands (−116 cm and −89 cm to surface level, respectively) than for the unmanaged pasture and the sedge fen (−60 cm and −38 cm). Hypoxic conditions required GWLs close to the surface (7 cm and −2 cm for the pasture and the restored site, respectively) while in 5 cm soil depth managed grasslands remained hypoxic even at GWLs of −8 cm and −28 cm. In 20 cm soil depth, full oxygen saturation never occurred even at GWL as low as 80 cm. Threshold GWL required for 95% probability of oxic conditions was higher with increasing porosity and rooting density. The offset between GWL and oxic conditions can be used for hydrological wetland management, especially for restoration efforts.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.ecoleng.2018.05.033</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0925-8574 |
| ispartof | Ecological engineering, 2018-09, Vol.120, p.85-93 |
| issn | 0925-8574 1872-6992 |
| language | eng |
| recordid | cdi_proquest_journals_2124116893 |
| source | Elsevier ScienceDirect Journals |
| subjects | Aeration Anoxia Availability Depth Environmental restoration Fens Grassland management Grasslands Groundwater Groundwater levels Groundwater table Hydrology Hypoxia Hypoxic conditions Land use Organic matter Oxic conditions Oxygen Oxygen content Pasture Peat Peat soils Porosity Probability theory Regression analysis Restoration Rooting Rooting density Saturated soils Saturation Soil Soil conservation Soil depth Soil management Soil porosity Soil water Statistical analysis Water levels Water table Wetland management Wetland restoration Wetlands |
| title | Relationship between groundwater levels and oxygen availability in fen peat soils |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-02T03%3A10%3A17IST&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=Relationship%20between%20groundwater%20levels%20and%20oxygen%20availability%20in%20fen%20peat%20soils&rft.jtitle=Ecological%20engineering&rft.au=Dickopp,%20Jan&rft.date=2018-09-01&rft.volume=120&rft.spage=85&rft.epage=93&rft.pages=85-93&rft.issn=0925-8574&rft.eissn=1872-6992&rft_id=info:doi/10.1016/j.ecoleng.2018.05.033&rft_dat=%3Cproquest_cross%3E2124116893%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2124116893&rft_id=info:pmid/&rft_els_id=S0925857418301952&rfr_iscdi=true |