Free-Air CO2 Enrichment of Sorghum: Soil Carbon and Nitrogen Dynamics
The positive impact of elevated atmospheric CO2 concentration on crop biomass production suggests more carbon inputs to soil. Further study on the effect of elevated CO2 on soil carbon and nitrogen dynamics is key to understanding the potential for long-term carbon storage in soil. Soil samples (0-...
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| Veröffentlicht in: | Journal of environmental quality 2008-05, Vol.37 (3), p.753-758 |
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| creator | Prior, S.A Torbert, H.A Runion, G.B Rogers, H.H Kimball, B.A |
| description | The positive impact of elevated atmospheric CO2 concentration on crop biomass production suggests more carbon inputs to soil. Further study on the effect of elevated CO2 on soil carbon and nitrogen dynamics is key to understanding the potential for long-term carbon storage in soil. Soil samples (0- to 5-, 5- to 10-, and 10- to 20-cm depths) were collected after 2 yr of grain sorghum [Sorghum bicolor (L.) Moench.] production under two atmospheric CO2 levels: (370 [ambient] and 550 μL L-1 [free-air CO2 enrichment; FACE]) and two water treatments (ample water and limited water) on a Trix clay loam (fine, loamy, mixed [calcareous], hyperthermic Typic Torrifluvents) at Maricopa, AZ. In addition to assessing treatment effects on soil organic C and total N, potential C and N mineralization and C turnover were determined in a 60-d laboratory incubation study. After 2 yr of FACE, soil C and N were significantly increased at all soil depths. Water regime had no effect on these measures. Increased total N in the soil was associated with reduced N mineralization under FACE. Results indicated that potential C turnover was reduced under water deficit conditions at the top soil depth. Carbon turnover was not affected under FACE, implying that the observed increase in soil C with elevated CO2 may be stable relative to ambient CO2 conditions. Results suggest that, over the short-term, a small increase in soil C storage could occur under elevated atmospheric CO2 conditions in sorghum production systems with differing water regimes. |
| doi_str_mv | 10.2134/jeq2007.0276 |
| format | Article |
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Further study on the effect of elevated CO2 on soil carbon and nitrogen dynamics is key to understanding the potential for long-term carbon storage in soil. Soil samples (0- to 5-, 5- to 10-, and 10- to 20-cm depths) were collected after 2 yr of grain sorghum [Sorghum bicolor (L.) Moench.] production under two atmospheric CO2 levels: (370 [ambient] and 550 μL L-1 [free-air CO2 enrichment; FACE]) and two water treatments (ample water and limited water) on a Trix clay loam (fine, loamy, mixed [calcareous], hyperthermic Typic Torrifluvents) at Maricopa, AZ. In addition to assessing treatment effects on soil organic C and total N, potential C and N mineralization and C turnover were determined in a 60-d laboratory incubation study. After 2 yr of FACE, soil C and N were significantly increased at all soil depths. Water regime had no effect on these measures. Increased total N in the soil was associated with reduced N mineralization under FACE. Results indicated that potential C turnover was reduced under water deficit conditions at the top soil depth. Carbon turnover was not affected under FACE, implying that the observed increase in soil C with elevated CO2 may be stable relative to ambient CO2 conditions. Results suggest that, over the short-term, a small increase in soil C storage could occur under elevated atmospheric CO2 conditions in sorghum production systems with differing water regimes.</description><identifier>ISSN: 0047-2425</identifier><identifier>EISSN: 1537-2537</identifier><identifier>DOI: 10.2134/jeq2007.0276</identifier><identifier>PMID: 18453395</identifier><identifier>CODEN: JEVQAA</identifier><language>eng</language><publisher>Madison: American Society of Agronomy, Crop Science Society of America, Soil Science Society</publisher><subject>Carbon ; Carbon - chemistry ; Carbon dioxide ; Carbon Dioxide - chemistry ; carbon nitrogen ratio ; Carbon sequestration ; Clay loam ; clay loam soils ; Crops ; Environmental conditions ; Fossil fuels ; grain sorghum ; Long term ; Mineralization ; Nitrogen ; Nitrogen - chemistry ; Soil ; Soil depth ; soil nutrient balance ; soil nutrient dynamics ; soil water regimes ; Soils ; Sorghum ; Sorghum - chemistry ; Sorghum bicolor ; Studies ; Water deficit ; Water depth ; water stress ; Water treatment</subject><ispartof>Journal of environmental quality, 2008-05, Vol.37 (3), p.753-758</ispartof><rights>American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America</rights><rights>Copyright American Society of Agronomy May/Jun 2008</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.2134%2Fjeq2007.0276$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.2134%2Fjeq2007.0276$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18453395$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Prior, S.A</creatorcontrib><creatorcontrib>Torbert, H.A</creatorcontrib><creatorcontrib>Runion, G.B</creatorcontrib><creatorcontrib>Rogers, H.H</creatorcontrib><creatorcontrib>Kimball, B.A</creatorcontrib><title>Free-Air CO2 Enrichment of Sorghum: Soil Carbon and Nitrogen Dynamics</title><title>Journal of environmental quality</title><addtitle>J Environ Qual</addtitle><description>The positive impact of elevated atmospheric CO2 concentration on crop biomass production suggests more carbon inputs to soil. Further study on the effect of elevated CO2 on soil carbon and nitrogen dynamics is key to understanding the potential for long-term carbon storage in soil. Soil samples (0- to 5-, 5- to 10-, and 10- to 20-cm depths) were collected after 2 yr of grain sorghum [Sorghum bicolor (L.) Moench.] production under two atmospheric CO2 levels: (370 [ambient] and 550 μL L-1 [free-air CO2 enrichment; FACE]) and two water treatments (ample water and limited water) on a Trix clay loam (fine, loamy, mixed [calcareous], hyperthermic Typic Torrifluvents) at Maricopa, AZ. In addition to assessing treatment effects on soil organic C and total N, potential C and N mineralization and C turnover were determined in a 60-d laboratory incubation study. After 2 yr of FACE, soil C and N were significantly increased at all soil depths. Water regime had no effect on these measures. Increased total N in the soil was associated with reduced N mineralization under FACE. Results indicated that potential C turnover was reduced under water deficit conditions at the top soil depth. Carbon turnover was not affected under FACE, implying that the observed increase in soil C with elevated CO2 may be stable relative to ambient CO2 conditions. Results suggest that, over the short-term, a small increase in soil C storage could occur under elevated atmospheric CO2 conditions in sorghum production systems with differing water regimes.</description><subject>Carbon</subject><subject>Carbon - chemistry</subject><subject>Carbon dioxide</subject><subject>Carbon Dioxide - chemistry</subject><subject>carbon nitrogen ratio</subject><subject>Carbon sequestration</subject><subject>Clay loam</subject><subject>clay loam soils</subject><subject>Crops</subject><subject>Environmental conditions</subject><subject>Fossil fuels</subject><subject>grain sorghum</subject><subject>Long term</subject><subject>Mineralization</subject><subject>Nitrogen</subject><subject>Nitrogen - chemistry</subject><subject>Soil</subject><subject>Soil depth</subject><subject>soil nutrient balance</subject><subject>soil nutrient dynamics</subject><subject>soil water regimes</subject><subject>Soils</subject><subject>Sorghum</subject><subject>Sorghum - chemistry</subject><subject>Sorghum bicolor</subject><subject>Studies</subject><subject>Water deficit</subject><subject>Water depth</subject><subject>water stress</subject><subject>Water treatment</subject><issn>0047-2425</issn><issn>1537-2537</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNqFkU1P3DAQhi1EVbbQG-c26oFbYDzjxDY3tF3aIgSqKGfLcZzFq3yAs1G1_x6vdhFSLz14PB_PO5L9MnbK4Rw5iYuVf0EAeQ4oywM24wXJHFM4ZDMAkXKBxRH7NI4rAI4gy4_siCtREOlixhbX0fv8KsRsfo_Zoo_BPXW-X2dDkz0Mcfk0dZcpCW02t7Ea-sz2dXYX1nFY-j77vultF9x4wj40th395_19zB6vF3_mP_Pb-x-_5le3eUOSyhwRy8IR59ZLRY6LRqJSpLium9oKdKSqhnjtUKumELrW5CqlfaldKStwdMzOdnuf4_Ay-XFtujA637a298M0mlJzhSD0f0GuSQqSkMBv_4CrYYp9ekRipABRSpmgL3toqjpfm-cYOhs35u0bE6B3wN_Q-s37HMzWIrO3yGwtMjeL37g9qbGtk_brTtvYwdhlDKN5fEDgBKC0RkJ6BZO1iqI</recordid><startdate>200805</startdate><enddate>200805</enddate><creator>Prior, S.A</creator><creator>Torbert, H.A</creator><creator>Runion, G.B</creator><creator>Rogers, H.H</creator><creator>Kimball, B.A</creator><general>American Society of Agronomy, Crop Science Society of America, Soil Science Society</general><general>American Society of Agronomy</general><scope>FBQ</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>3V.</scope><scope>7ST</scope><scope>7T7</scope><scope>7TG</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>88I</scope><scope>8AF</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KL.</scope><scope>L6V</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>M2P</scope><scope>M7S</scope><scope>MBDVC</scope><scope>P64</scope><scope>PATMY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope><scope>S0X</scope><scope>SOI</scope><scope>7TV</scope><scope>7U6</scope><scope>7X8</scope></search><sort><creationdate>200805</creationdate><title>Free-Air CO2 Enrichment of Sorghum: Soil Carbon and Nitrogen Dynamics</title><author>Prior, S.A ; Torbert, H.A ; Runion, G.B ; Rogers, H.H ; Kimball, B.A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-f3736-22265c311ae783c14f72883819dfda42c38bf31dc298f549d93cb89e69c67b0c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Carbon</topic><topic>Carbon - 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Academic</collection><jtitle>Journal of environmental quality</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Prior, S.A</au><au>Torbert, H.A</au><au>Runion, G.B</au><au>Rogers, H.H</au><au>Kimball, B.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Free-Air CO2 Enrichment of Sorghum: Soil Carbon and Nitrogen Dynamics</atitle><jtitle>Journal of environmental quality</jtitle><addtitle>J Environ Qual</addtitle><date>2008-05</date><risdate>2008</risdate><volume>37</volume><issue>3</issue><spage>753</spage><epage>758</epage><pages>753-758</pages><issn>0047-2425</issn><eissn>1537-2537</eissn><coden>JEVQAA</coden><abstract>The positive impact of elevated atmospheric CO2 concentration on crop biomass production suggests more carbon inputs to soil. Further study on the effect of elevated CO2 on soil carbon and nitrogen dynamics is key to understanding the potential for long-term carbon storage in soil. Soil samples (0- to 5-, 5- to 10-, and 10- to 20-cm depths) were collected after 2 yr of grain sorghum [Sorghum bicolor (L.) Moench.] production under two atmospheric CO2 levels: (370 [ambient] and 550 μL L-1 [free-air CO2 enrichment; FACE]) and two water treatments (ample water and limited water) on a Trix clay loam (fine, loamy, mixed [calcareous], hyperthermic Typic Torrifluvents) at Maricopa, AZ. In addition to assessing treatment effects on soil organic C and total N, potential C and N mineralization and C turnover were determined in a 60-d laboratory incubation study. After 2 yr of FACE, soil C and N were significantly increased at all soil depths. Water regime had no effect on these measures. Increased total N in the soil was associated with reduced N mineralization under FACE. Results indicated that potential C turnover was reduced under water deficit conditions at the top soil depth. Carbon turnover was not affected under FACE, implying that the observed increase in soil C with elevated CO2 may be stable relative to ambient CO2 conditions. Results suggest that, over the short-term, a small increase in soil C storage could occur under elevated atmospheric CO2 conditions in sorghum production systems with differing water regimes.</abstract><cop>Madison</cop><pub>American Society of Agronomy, Crop Science Society of America, Soil Science Society</pub><pmid>18453395</pmid><doi>10.2134/jeq2007.0276</doi><tpages>6</tpages></addata></record> |
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| subjects | Carbon Carbon - chemistry Carbon dioxide Carbon Dioxide - chemistry carbon nitrogen ratio Carbon sequestration Clay loam clay loam soils Crops Environmental conditions Fossil fuels grain sorghum Long term Mineralization Nitrogen Nitrogen - chemistry Soil Soil depth soil nutrient balance soil nutrient dynamics soil water regimes Soils Sorghum Sorghum - chemistry Sorghum bicolor Studies Water deficit Water depth water stress Water treatment |
| title | Free-Air CO2 Enrichment of Sorghum: Soil Carbon and Nitrogen Dynamics |
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