Effects of forest management intensity on carbon and nitrogen content in different soil size fractions of a North Florida Spodosol
Pine plantations of the southeastern USA are regional carbon (C) sinks. In spite of large increases in woody biomass due to advanced growing systems, studies have shown little or even negative effects on the C content of the extremely sandy soils of this region. Hence, it is important to understand...
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| Veröffentlicht in: | Plant and soil 2007-05, Vol.294 (1-2), p.291-303 |
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| creator | Sarkhot, D. V Comerford, N. B Jokela, E. J Reeves, J. B. III |
| description | Pine plantations of the southeastern USA are regional carbon (C) sinks. In spite of large increases in woody biomass due to advanced growing systems, studies have shown little or even negative effects on the C content of the extremely sandy soils of this region. Hence, it is important to understand the mechanisms that determine the impact of intensive forest management on soil organic carbon (SOC) sequestration. This study was conducted to examine the C profile in a 4-year-old loblolly pine (Pinus taeda L.) plantation managed under two levels of management intensity (chemical understory control and fertilizer inputs). Soil organic C and nitrogen (N) pools were evaluated using two size fractionation methods, dry and wet sieving (2000-250 μm, 250-150 μm, 150-53 μm and |
| doi_str_mv | 10.1007/s11104-007-9255-z |
| format | Article |
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V ; Comerford, N. B ; Jokela, E. J ; Reeves, J. B. III</creator><creatorcontrib>Sarkhot, D. V ; Comerford, N. B ; Jokela, E. J ; Reeves, J. B. III</creatorcontrib><description>Pine plantations of the southeastern USA are regional carbon (C) sinks. In spite of large increases in woody biomass due to advanced growing systems, studies have shown little or even negative effects on the C content of the extremely sandy soils of this region. Hence, it is important to understand the mechanisms that determine the impact of intensive forest management on soil organic carbon (SOC) sequestration. This study was conducted to examine the C profile in a 4-year-old loblolly pine (Pinus taeda L.) plantation managed under two levels of management intensity (chemical understory control and fertilizer inputs). Soil organic C and nitrogen (N) pools were evaluated using two size fractionation methods, dry and wet sieving (2000-250 μm, 250-150 μm, 150-53 μm and <53 μm). Dry sieving was preferred over wet sieving for soil size fractionation, as it preserved more structure and water-soluble SOC components such as esters and amides and did not affect the N distribution. Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) spectra were used to examine the chemical composition of the size fractions, which showed the presence of recently added organic matter in the largest sand fraction, as well as more decomposed organic matter in the <53 μm fraction. Intensive forest management reduced SOC in all three 2000-53 μm fractions, most likely due to reduced root input of understory plants that were controlled using herbicides. The 2000-250 μm fractions contained nearly half of the total SOC and showed a 23% decrease in C content due to the intensive management regime. Results from this study indicated the significance and responsiveness of sand size SOC fractions in Florida Spodosols. Results also showed that reductions in SOC due to intensive management occurred after four years and highlighted the need to understand the long-term impacts and the mechanisms responsible.</description><identifier>ISSN: 0032-079X</identifier><identifier>EISSN: 1573-5036</identifier><identifier>DOI: 10.1007/s11104-007-9255-z</identifier><identifier>CODEN: PLSOA2</identifier><language>eng</language><publisher>Dordrecht: Dordrecht : Kluwer Academic Publishers</publisher><subject>Agricultural soils ; Agronomy. Soil science and plant productions ; Amides ; Animal, plant and microbial ecology ; Biological and medical sciences ; Carbon ; carbon sequestration ; Chemical composition ; DRIFTS ; Esters ; Fertilization and chemical weed control ; Forest management ; Forest soils ; Fourier transforms ; Fractionation ; Fundamental and applied biological sciences. Psychology ; Herbicides ; Intensive silviculture loblolly pine ; Nitrogen ; Organic carbon ; Organic matter ; Organic soils ; Pine ; Pine trees ; Pinus taeda ; Plantations ; Sand ; Sand soils ; Sandy soils ; Sieving ; Size fractionation ; Soil biochemistry ; Soil depth ; Soil organic matter ; Soils ; Spectrum analysis ; Spodosols ; Understory</subject><ispartof>Plant and soil, 2007-05, Vol.294 (1-2), p.291-303</ispartof><rights>Springer Science+Business Media B.V.</rights><rights>2008 INIST-CNRS</rights><rights>Springer Science+Business Media B.V. 2007.</rights><rights>Springer Science+Business Media B.V. 2007</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c440t-6dd08b359fa28c0221130179a601dfcfba348cbf9ec7a2cfb9d9a0c6345112f33</citedby><cites>FETCH-LOGICAL-c440t-6dd08b359fa28c0221130179a601dfcfba348cbf9ec7a2cfb9d9a0c6345112f33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/24125604$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/24125604$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,27923,27924,58016,58249</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18797014$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Sarkhot, D. V</creatorcontrib><creatorcontrib>Comerford, N. B</creatorcontrib><creatorcontrib>Jokela, E. J</creatorcontrib><creatorcontrib>Reeves, J. B. III</creatorcontrib><title>Effects of forest management intensity on carbon and nitrogen content in different soil size fractions of a North Florida Spodosol</title><title>Plant and soil</title><description>Pine plantations of the southeastern USA are regional carbon (C) sinks. In spite of large increases in woody biomass due to advanced growing systems, studies have shown little or even negative effects on the C content of the extremely sandy soils of this region. Hence, it is important to understand the mechanisms that determine the impact of intensive forest management on soil organic carbon (SOC) sequestration. This study was conducted to examine the C profile in a 4-year-old loblolly pine (Pinus taeda L.) plantation managed under two levels of management intensity (chemical understory control and fertilizer inputs). Soil organic C and nitrogen (N) pools were evaluated using two size fractionation methods, dry and wet sieving (2000-250 μm, 250-150 μm, 150-53 μm and <53 μm). Dry sieving was preferred over wet sieving for soil size fractionation, as it preserved more structure and water-soluble SOC components such as esters and amides and did not affect the N distribution. Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) spectra were used to examine the chemical composition of the size fractions, which showed the presence of recently added organic matter in the largest sand fraction, as well as more decomposed organic matter in the <53 μm fraction. Intensive forest management reduced SOC in all three 2000-53 μm fractions, most likely due to reduced root input of understory plants that were controlled using herbicides. The 2000-250 μm fractions contained nearly half of the total SOC and showed a 23% decrease in C content due to the intensive management regime. Results from this study indicated the significance and responsiveness of sand size SOC fractions in Florida Spodosols. Results also showed that reductions in SOC due to intensive management occurred after four years and highlighted the need to understand the long-term impacts and the mechanisms responsible.</description><subject>Agricultural soils</subject><subject>Agronomy. Soil science and plant productions</subject><subject>Amides</subject><subject>Animal, plant and microbial ecology</subject><subject>Biological and medical sciences</subject><subject>Carbon</subject><subject>carbon sequestration</subject><subject>Chemical composition</subject><subject>DRIFTS</subject><subject>Esters</subject><subject>Fertilization and chemical weed control</subject><subject>Forest management</subject><subject>Forest soils</subject><subject>Fourier transforms</subject><subject>Fractionation</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Herbicides</subject><subject>Intensive silviculture loblolly pine</subject><subject>Nitrogen</subject><subject>Organic carbon</subject><subject>Organic matter</subject><subject>Organic soils</subject><subject>Pine</subject><subject>Pine trees</subject><subject>Pinus taeda</subject><subject>Plantations</subject><subject>Sand</subject><subject>Sand soils</subject><subject>Sandy soils</subject><subject>Sieving</subject><subject>Size fractionation</subject><subject>Soil biochemistry</subject><subject>Soil depth</subject><subject>Soil organic matter</subject><subject>Soils</subject><subject>Spectrum analysis</subject><subject>Spodosols</subject><subject>Understory</subject><issn>0032-079X</issn><issn>1573-5036</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kU2LFDEQhoMoOK7-AA9iUFy8tFalO0nnuCy7q7DoYV3w1mTSyZihJxmTzGHn6C83bS8Kgp7q66m3qCpCniO8QwD5PiMidE11G8U4b44PyAq5bBsOrXhIVgAta0Cqr4_Jk5y3MMcoVuTHhXPWlEyjoy4mmwvd6aA3dmdDoT4UG7IvdzQGanRaV6PDSIMvKW5szcWZmEE6-qqU5iBHP9Hsj5a6pE3xMfyS1_RTTOUbvZxi8qOmN_s4xhynp-SR01O2z-7tCbm9vPhy_qG5_nz18fzsujFdB6UR4wj9uuXKadYbYAyxBZRKC8DRGbfWbdebtVPWSM1qrEalwYi244jMte0JOV109yl-P9RNh53Pxk6TDjYe8oCqF9ArVsG3_wehTkKhmKroq7_QbTykUNcYJEcGkktZodf_gpgQnRBK4iyFC2VSzDlZN-yT3-l0V-cN84-H5cfD7M4_Ho615829ss5GT_Xcwfj8p7GXSgJ2lXuxcNtcYvpdZx0yLmCuv1zqTsdBb1LVuL1hUA8MUvKuLvoTEcq6Mg</recordid><startdate>20070501</startdate><enddate>20070501</enddate><creator>Sarkhot, D. 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Psychology</topic><topic>Herbicides</topic><topic>Intensive silviculture loblolly pine</topic><topic>Nitrogen</topic><topic>Organic carbon</topic><topic>Organic matter</topic><topic>Organic soils</topic><topic>Pine</topic><topic>Pine trees</topic><topic>Pinus taeda</topic><topic>Plantations</topic><topic>Sand</topic><topic>Sand soils</topic><topic>Sandy soils</topic><topic>Sieving</topic><topic>Size fractionation</topic><topic>Soil biochemistry</topic><topic>Soil depth</topic><topic>Soil organic matter</topic><topic>Soils</topic><topic>Spectrum analysis</topic><topic>Spodosols</topic><topic>Understory</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sarkhot, D. V</creatorcontrib><creatorcontrib>Comerford, N. B</creatorcontrib><creatorcontrib>Jokela, E. J</creatorcontrib><creatorcontrib>Reeves, J. B. 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This study was conducted to examine the C profile in a 4-year-old loblolly pine (Pinus taeda L.) plantation managed under two levels of management intensity (chemical understory control and fertilizer inputs). Soil organic C and nitrogen (N) pools were evaluated using two size fractionation methods, dry and wet sieving (2000-250 μm, 250-150 μm, 150-53 μm and <53 μm). Dry sieving was preferred over wet sieving for soil size fractionation, as it preserved more structure and water-soluble SOC components such as esters and amides and did not affect the N distribution. Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS) spectra were used to examine the chemical composition of the size fractions, which showed the presence of recently added organic matter in the largest sand fraction, as well as more decomposed organic matter in the <53 μm fraction. Intensive forest management reduced SOC in all three 2000-53 μm fractions, most likely due to reduced root input of understory plants that were controlled using herbicides. The 2000-250 μm fractions contained nearly half of the total SOC and showed a 23% decrease in C content due to the intensive management regime. Results from this study indicated the significance and responsiveness of sand size SOC fractions in Florida Spodosols. Results also showed that reductions in SOC due to intensive management occurred after four years and highlighted the need to understand the long-term impacts and the mechanisms responsible.</abstract><cop>Dordrecht</cop><pub>Dordrecht : Kluwer Academic Publishers</pub><doi>10.1007/s11104-007-9255-z</doi><tpages>13</tpages></addata></record> |
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| ispartof | Plant and soil, 2007-05, Vol.294 (1-2), p.291-303 |
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| subjects | Agricultural soils Agronomy. Soil science and plant productions Amides Animal, plant and microbial ecology Biological and medical sciences Carbon carbon sequestration Chemical composition DRIFTS Esters Fertilization and chemical weed control Forest management Forest soils Fourier transforms Fractionation Fundamental and applied biological sciences. Psychology Herbicides Intensive silviculture loblolly pine Nitrogen Organic carbon Organic matter Organic soils Pine Pine trees Pinus taeda Plantations Sand Sand soils Sandy soils Sieving Size fractionation Soil biochemistry Soil depth Soil organic matter Soils Spectrum analysis Spodosols Understory |
| title | Effects of forest management intensity on carbon and nitrogen content in different soil size fractions of a North Florida Spodosol |
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