Nitrogen Elimination in Two Deep Eutrophic Lakes
Nitrogen elimination was investigated in two eutrophic Swiss lakes with different hypolimnetic oxygen conditions. Nitrogen burial was estimated from sediment-trap and sediment-core studies. Denitrification and NO3 --ammonification rates were quantified with15NO 3 -and acetylene incubation experiment...
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| Veröffentlicht in: | Limnology and oceanography 1997-11, Vol.42 (7), p.1530-1543 |
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| container_title | Limnology and oceanography |
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| creator | Mengis, Martin Gachter, Rene Wehrli, Bernhard Bernasconi, Stefano |
| description | Nitrogen elimination was investigated in two eutrophic Swiss lakes with different hypolimnetic oxygen conditions. Nitrogen burial was estimated from sediment-trap and sediment-core studies. Denitrification and NO3
--ammonification rates were quantified with15NO
3
-and acetylene incubation experiments and whole-lake mass balances. The study confirmed earlier reports that the acetylene-block technique yields denitrification rates that are systematically too low. Denitrification rates obtained from isotope tracer experiments were compatible with nitrogen consumption rates observed in flux chamber experiments and whole-lake mass balances. The NO3
--ammonification contributed |
| doi_str_mv | 10.4319/lo.1997.42.7.1530 |
| format | Article |
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--ammonification rates were quantified with15NO
3
-and acetylene incubation experiments and whole-lake mass balances. The study confirmed earlier reports that the acetylene-block technique yields denitrification rates that are systematically too low. Denitrification rates obtained from isotope tracer experiments were compatible with nitrogen consumption rates observed in flux chamber experiments and whole-lake mass balances. The NO3
--ammonification contributed <5% to the NO3
-consumption rate in Lake Baldegg. Coupled nitrification-denitrification seemed to be insignificant at the deepest station of Lake Baldegg. The comparison of in situ denitrification rates measured at the deepest site (4.3 mmol m-2 d-1) with the denitrification rate obtained from whole-lake mass balances (6.1 mmol m-2 d-1) indicates that enhanced denitrification may be present in shallower sediments with a better supply of O2. Mass transfer coefficients for NO3
-were similar in both lakes (21.7 and 21.4 m yr-1). The NO3
-concentration seems to be a key parameter in determining denitrification rates.</description><identifier>ISSN: 0024-3590</identifier><identifier>EISSN: 1939-5590</identifier><identifier>DOI: 10.4319/lo.1997.42.7.1530</identifier><identifier>CODEN: LIOCAH</identifier><language>eng</language><publisher>Waco, TX: American Society of Limnology and Oceanography</publisher><subject>Basins ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; Freshwater ; Geochemistry ; Hydrology ; Hydrology. Hydrogeology ; Isotopes ; Marine ; Mass balance ; Mineralogy ; Nitrates ; Nitrification ; Nitrogen ; Oxygen ; Sediment core samples ; Sediments ; Silicates ; Water depth ; Water geochemistry</subject><ispartof>Limnology and oceanography, 1997-11, Vol.42 (7), p.1530-1543</ispartof><rights>Copyright 1997 American Society of Limnology and Oceanography, Inc.</rights><rights>1997, by the Association for the Sciences of Limnology and Oceanography, Inc.</rights><rights>1998 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5200-494284f62d91558c95405d6ff8a9bd8f4af248086c6191bc4739721caa95fa853</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/2839153$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/2839153$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,1411,1427,27903,27904,45553,45554,46388,46812,57996,58229</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2261600$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Mengis, Martin</creatorcontrib><creatorcontrib>Gachter, Rene</creatorcontrib><creatorcontrib>Wehrli, Bernhard</creatorcontrib><creatorcontrib>Bernasconi, Stefano</creatorcontrib><title>Nitrogen Elimination in Two Deep Eutrophic Lakes</title><title>Limnology and oceanography</title><description>Nitrogen elimination was investigated in two eutrophic Swiss lakes with different hypolimnetic oxygen conditions. Nitrogen burial was estimated from sediment-trap and sediment-core studies. Denitrification and NO3
--ammonification rates were quantified with15NO
3
-and acetylene incubation experiments and whole-lake mass balances. The study confirmed earlier reports that the acetylene-block technique yields denitrification rates that are systematically too low. Denitrification rates obtained from isotope tracer experiments were compatible with nitrogen consumption rates observed in flux chamber experiments and whole-lake mass balances. The NO3
--ammonification contributed <5% to the NO3
-consumption rate in Lake Baldegg. Coupled nitrification-denitrification seemed to be insignificant at the deepest station of Lake Baldegg. The comparison of in situ denitrification rates measured at the deepest site (4.3 mmol m-2 d-1) with the denitrification rate obtained from whole-lake mass balances (6.1 mmol m-2 d-1) indicates that enhanced denitrification may be present in shallower sediments with a better supply of O2. Mass transfer coefficients for NO3
-were similar in both lakes (21.7 and 21.4 m yr-1). The NO3
-concentration seems to be a key parameter in determining denitrification rates.</description><subject>Basins</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Freshwater</subject><subject>Geochemistry</subject><subject>Hydrology</subject><subject>Hydrology. Hydrogeology</subject><subject>Isotopes</subject><subject>Marine</subject><subject>Mass balance</subject><subject>Mineralogy</subject><subject>Nitrates</subject><subject>Nitrification</subject><subject>Nitrogen</subject><subject>Oxygen</subject><subject>Sediment core samples</subject><subject>Sediments</subject><subject>Silicates</subject><subject>Water depth</subject><subject>Water geochemistry</subject><issn>0024-3590</issn><issn>1939-5590</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNqFkD1PwzAQhi0EEqXwA5AYMiDEkuCPc2IPDKiUDylqlzJbrmuDSxqHuFXVf0-iVrDBdKfT874nPQhdEpwBI_KuChmRssiAZkVGOMNHaEAkkynnEh-jAcYUUtbtp-gsxiXGWHLOBwhP_LoN77ZOxpVf-VqvfagTXyezbUgerW2S8aYDmg9vklJ_2niOTpyuor04zCF6exrPRi9pOX1-HT2UqeEU4xQkUAEupwtJOBdGcsB8kTsntJwvhAPtKAgscpMTSeYGCiYLSozWkjstOBui231v04avjY1rtfLR2KrStQ2bqEgXLqhghejQm7_RHIADQAeSPWjaEGNrnWpav9LtThGseo2qCqrXqICqQvUau8z1oVxHoyvX6tr4-BOkNCc57rH7Pbb1ld3936vKybS_AC0Ob672-WVch_a3XrDOH2Pfzn2LUg</recordid><startdate>199711</startdate><enddate>199711</enddate><creator>Mengis, Martin</creator><creator>Gachter, Rene</creator><creator>Wehrli, Bernhard</creator><creator>Bernasconi, Stefano</creator><general>American Society of Limnology and Oceanography</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>7QH</scope><scope>H95</scope></search><sort><creationdate>199711</creationdate><title>Nitrogen Elimination in Two Deep Eutrophic Lakes</title><author>Mengis, Martin ; Gachter, Rene ; Wehrli, Bernhard ; Bernasconi, Stefano</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5200-494284f62d91558c95405d6ff8a9bd8f4af248086c6191bc4739721caa95fa853</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Basins</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Freshwater</topic><topic>Geochemistry</topic><topic>Hydrology</topic><topic>Hydrology. Hydrogeology</topic><topic>Isotopes</topic><topic>Marine</topic><topic>Mass balance</topic><topic>Mineralogy</topic><topic>Nitrates</topic><topic>Nitrification</topic><topic>Nitrogen</topic><topic>Oxygen</topic><topic>Sediment core samples</topic><topic>Sediments</topic><topic>Silicates</topic><topic>Water depth</topic><topic>Water geochemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mengis, Martin</creatorcontrib><creatorcontrib>Gachter, Rene</creatorcontrib><creatorcontrib>Wehrli, Bernhard</creatorcontrib><creatorcontrib>Bernasconi, Stefano</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Aqualine</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><jtitle>Limnology and oceanography</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mengis, Martin</au><au>Gachter, Rene</au><au>Wehrli, Bernhard</au><au>Bernasconi, Stefano</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nitrogen Elimination in Two Deep Eutrophic Lakes</atitle><jtitle>Limnology and oceanography</jtitle><date>1997-11</date><risdate>1997</risdate><volume>42</volume><issue>7</issue><spage>1530</spage><epage>1543</epage><pages>1530-1543</pages><issn>0024-3590</issn><eissn>1939-5590</eissn><coden>LIOCAH</coden><abstract>Nitrogen elimination was investigated in two eutrophic Swiss lakes with different hypolimnetic oxygen conditions. Nitrogen burial was estimated from sediment-trap and sediment-core studies. Denitrification and NO3
--ammonification rates were quantified with15NO
3
-and acetylene incubation experiments and whole-lake mass balances. The study confirmed earlier reports that the acetylene-block technique yields denitrification rates that are systematically too low. Denitrification rates obtained from isotope tracer experiments were compatible with nitrogen consumption rates observed in flux chamber experiments and whole-lake mass balances. The NO3
--ammonification contributed <5% to the NO3
-consumption rate in Lake Baldegg. Coupled nitrification-denitrification seemed to be insignificant at the deepest station of Lake Baldegg. The comparison of in situ denitrification rates measured at the deepest site (4.3 mmol m-2 d-1) with the denitrification rate obtained from whole-lake mass balances (6.1 mmol m-2 d-1) indicates that enhanced denitrification may be present in shallower sediments with a better supply of O2. Mass transfer coefficients for NO3
-were similar in both lakes (21.7 and 21.4 m yr-1). The NO3
-concentration seems to be a key parameter in determining denitrification rates.</abstract><cop>Waco, TX</cop><pub>American Society of Limnology and Oceanography</pub><doi>10.4319/lo.1997.42.7.1530</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record> |
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| issn | 0024-3590 1939-5590 |
| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete; Wiley Online Library Free Content; Jstor Complete Legacy; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Basins Earth sciences Earth, ocean, space Exact sciences and technology Freshwater Geochemistry Hydrology Hydrology. Hydrogeology Isotopes Marine Mass balance Mineralogy Nitrates Nitrification Nitrogen Oxygen Sediment core samples Sediments Silicates Water depth Water geochemistry |
| title | Nitrogen Elimination in Two Deep Eutrophic Lakes |
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