Denitrification and Nitrous Oxide Production in a Coastal Marine Ecosystem
Denitrification was measured directly as the flux of $N_2$ from sediment cores collected at various times of year at three stations in the Narragansett Bay, R.I., area. Rates of $N_2$ production ranged from about 10 to $115 \mumol N\cdot m^-2 \cdot h^-1$, with lowest values at $2^\circ C$ in winter...
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| Veröffentlicht in: | Limnol. Oceanogr.; (United States) 1984-01, Vol.29 (1), p.73-83 |
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| container_title | Limnol. Oceanogr.; (United States) |
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| creator | Seitzinger, Sybil P. Nixon, Scott W. Michael E. Q. Pilson |
| description | Denitrification was measured directly as the flux of $N_2$ from sediment cores collected at various times of year at three stations in the Narragansett Bay, R.I., area. Rates of $N_2$ production ranged from about 10 to $115 \mumol N\cdot m^-2 \cdot h^-1$, with lowest values at $2^\circ C$ in winter and highest at $15^\circ C$ in summer. Denitrification represents a major sink for fixed N in the bay; annually the $N_2$ production is equal to about 50% of the fixed inorganic N loading to the bay from rivers, land, and sewage. About 35% of the organic nitrogen mineralized in the sediments is removed from the ecosystem by dentrification. The percentage of organic nitrogen being mineralized in the sediments as $N_2 O$ relative to $N_2$ or $NO_3^- + NO_2^-$ is higher in polluted sediments than in relatively unpolluted sediments, but in all cases is |
| doi_str_mv | 10.4319/lo.1984.29.1.0073 |
| format | Article |
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Q. Pilson</creator><creatorcontrib>Seitzinger, Sybil P. ; Nixon, Scott W. ; Michael E. Q. Pilson ; Univ. of Rhode Island, Narragansett</creatorcontrib><description>Denitrification was measured directly as the flux of $N_2$ from sediment cores collected at various times of year at three stations in the Narragansett Bay, R.I., area. Rates of $N_2$ production ranged from about 10 to $115 \mumol N\cdot m^-2 \cdot h^-1$, with lowest values at $2^\circ C$ in winter and highest at $15^\circ C$ in summer. Denitrification represents a major sink for fixed N in the bay; annually the $N_2$ production is equal to about 50% of the fixed inorganic N loading to the bay from rivers, land, and sewage. About 35% of the organic nitrogen mineralized in the sediments is removed from the ecosystem by dentrification. The percentage of organic nitrogen being mineralized in the sediments as $N_2 O$ relative to $N_2$ or $NO_3^- + NO_2^-$ is higher in polluted sediments than in relatively unpolluted sediments, but in all cases is <10%.</description><identifier>ISSN: 0024-3590</identifier><identifier>DOI: 10.4319/lo.1984.29.1.0073</identifier><language>eng</language><publisher>United States: American Society of Limnology and Oceanography</publisher><subject>520200 - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989) ; Alkynes ; BIOSYNTHESIS ; CHALCOGENIDES ; CHEMICAL ANALYSIS ; CHEMICAL REACTIONS ; COASTAL REGIONS ; DENITRIFICATION ; ENVIRONMENTAL SCIENCES ; FEDERAL REGION I ; Marine ; Marine ecosystems ; Marine sediments ; NITRATES ; Nitrification ; Nitrogen ; NITROGEN COMPOUNDS ; NITROGEN CYCLE ; NITROGEN DIOXIDE ; NITROGEN OXIDES ; NITROUS OXIDE ; NORTH AMERICA ; OXIDES ; Oxygen ; OXYGEN COMPOUNDS ; POLLUTION ; RHODE ISLAND ; SAMPLING ; Sea water ; SEDIMENTS ; SYNTHESIS ; USA ; WATER POLLUTION</subject><ispartof>Limnol. 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Pilson</creatorcontrib><creatorcontrib>Univ. of Rhode Island, Narragansett</creatorcontrib><title>Denitrification and Nitrous Oxide Production in a Coastal Marine Ecosystem</title><title>Limnol. Oceanogr.; (United States)</title><description>Denitrification was measured directly as the flux of $N_2$ from sediment cores collected at various times of year at three stations in the Narragansett Bay, R.I., area. Rates of $N_2$ production ranged from about 10 to $115 \mumol N\cdot m^-2 \cdot h^-1$, with lowest values at $2^\circ C$ in winter and highest at $15^\circ C$ in summer. Denitrification represents a major sink for fixed N in the bay; annually the $N_2$ production is equal to about 50% of the fixed inorganic N loading to the bay from rivers, land, and sewage. About 35% of the organic nitrogen mineralized in the sediments is removed from the ecosystem by dentrification. The percentage of organic nitrogen being mineralized in the sediments as $N_2 O$ relative to $N_2$ or $NO_3^- + NO_2^-$ is higher in polluted sediments than in relatively unpolluted sediments, but in all cases is <10%.</description><subject>520200 - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989)</subject><subject>Alkynes</subject><subject>BIOSYNTHESIS</subject><subject>CHALCOGENIDES</subject><subject>CHEMICAL ANALYSIS</subject><subject>CHEMICAL REACTIONS</subject><subject>COASTAL REGIONS</subject><subject>DENITRIFICATION</subject><subject>ENVIRONMENTAL SCIENCES</subject><subject>FEDERAL REGION I</subject><subject>Marine</subject><subject>Marine ecosystems</subject><subject>Marine sediments</subject><subject>NITRATES</subject><subject>Nitrification</subject><subject>Nitrogen</subject><subject>NITROGEN COMPOUNDS</subject><subject>NITROGEN CYCLE</subject><subject>NITROGEN DIOXIDE</subject><subject>NITROGEN OXIDES</subject><subject>NITROUS OXIDE</subject><subject>NORTH AMERICA</subject><subject>OXIDES</subject><subject>Oxygen</subject><subject>OXYGEN COMPOUNDS</subject><subject>POLLUTION</subject><subject>RHODE ISLAND</subject><subject>SAMPLING</subject><subject>Sea water</subject><subject>SEDIMENTS</subject><subject>SYNTHESIS</subject><subject>USA</subject><subject>WATER POLLUTION</subject><issn>0024-3590</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1984</creationdate><recordtype>article</recordtype><recordid>eNqNz71OwzAUBWAPIFEKD4DEEDGwJdi-_olHFMqfCmWAOXJsR7hK42K7En17IsoDMB3pnk9XOghdEFwxIOpmCBVRNauoqkiFsYQjNMOYshK4wifoNKU1xlhxzmfo-c6NPkffe6OzD2OhR1u8TpewS8Xq21tXvMVgd-a39FNfNEGnrIfiRUc_umJhQtqn7DZn6LjXQ3LnfzlHH_eL9-axXK4enprbZbmmAnLZCYNB95Z3lkgquKK86znRTlohhFaEEaKZ0GCVw7WUIDvXdYRJ2wtthIU5ujr8DSn7Nhmfnfk0YRydya3gDCsME7o-oG0MXzuXcrvxybhh0KObprUEaiZqoP-BoBTICV4e4DrlENtt9Bsd9y2tQXBO4QcZW3HA</recordid><startdate>19840101</startdate><enddate>19840101</enddate><creator>Seitzinger, Sybil P.</creator><creator>Nixon, Scott W.</creator><creator>Michael E. 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Q. Pilson</creatorcontrib><creatorcontrib>Univ. of Rhode Island, Narragansett</creatorcontrib><collection>Oceanic Abstracts</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>OSTI.GOV</collection><jtitle>Limnol. Oceanogr.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Seitzinger, Sybil P.</au><au>Nixon, Scott W.</au><au>Michael E. Q. Pilson</au><aucorp>Univ. of Rhode Island, Narragansett</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Denitrification and Nitrous Oxide Production in a Coastal Marine Ecosystem</atitle><jtitle>Limnol. Oceanogr.; (United States)</jtitle><date>1984-01-01</date><risdate>1984</risdate><volume>29</volume><issue>1</issue><spage>73</spage><epage>83</epage><pages>73-83</pages><issn>0024-3590</issn><abstract>Denitrification was measured directly as the flux of $N_2$ from sediment cores collected at various times of year at three stations in the Narragansett Bay, R.I., area. Rates of $N_2$ production ranged from about 10 to $115 \mumol N\cdot m^-2 \cdot h^-1$, with lowest values at $2^\circ C$ in winter and highest at $15^\circ C$ in summer. Denitrification represents a major sink for fixed N in the bay; annually the $N_2$ production is equal to about 50% of the fixed inorganic N loading to the bay from rivers, land, and sewage. About 35% of the organic nitrogen mineralized in the sediments is removed from the ecosystem by dentrification. The percentage of organic nitrogen being mineralized in the sediments as $N_2 O$ relative to $N_2$ or $NO_3^- + NO_2^-$ is higher in polluted sediments than in relatively unpolluted sediments, but in all cases is <10%.</abstract><cop>United States</cop><pub>American Society of Limnology and Oceanography</pub><doi>10.4319/lo.1984.29.1.0073</doi><tpages>11</tpages></addata></record> |
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| source | JSTOR Archive Collection A-Z Listing; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | 520200 - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989) Alkynes BIOSYNTHESIS CHALCOGENIDES CHEMICAL ANALYSIS CHEMICAL REACTIONS COASTAL REGIONS DENITRIFICATION ENVIRONMENTAL SCIENCES FEDERAL REGION I Marine Marine ecosystems Marine sediments NITRATES Nitrification Nitrogen NITROGEN COMPOUNDS NITROGEN CYCLE NITROGEN DIOXIDE NITROGEN OXIDES NITROUS OXIDE NORTH AMERICA OXIDES Oxygen OXYGEN COMPOUNDS POLLUTION RHODE ISLAND SAMPLING Sea water SEDIMENTS SYNTHESIS USA WATER POLLUTION |
| title | Denitrification and Nitrous Oxide Production in a Coastal Marine Ecosystem |
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