Dynamics of greenhouse gas formation in relation to freeze/thaw soil depth in a flooded peat marsh of Northeast China
Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and ga...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Yang, Jisong [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2014transfer abstract |
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| Schlagwörter: |
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| Umfang: |
9 |
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| Übergeordnetes Werk: |
Enthalten in: Fabrication of novel hybrid materials based on iron-aluminum modified hemp fibers: Comparison between two proposed methodologies - Viscusi, Gianluca ELSEVIER, 2022, Amsterdam [u.a.] |
|---|---|
| Übergeordnetes Werk: |
volume:75 ; year:2014 ; pages:202-210 ; extent:9 |
| Links: |
|---|
| DOI / URN: |
10.1016/j.soilbio.2014.04.006 |
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| 520 | |a Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. | ||
| 520 | |a Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. | ||
| 650 | 7 | |a Freeze/thaw depth |2 Elsevier | |
| 650 | 7 | |a Flooded marsh |2 Elsevier | |
| 650 | 7 | |a Emission |2 Elsevier | |
| 650 | 7 | |a Concentration |2 Elsevier | |
| 650 | 7 | |a Greenhouse gases |2 Elsevier | |
| 700 | 1 | |a Zhou, Wangming |4 oth | |
| 700 | 1 | |a Liu, Jingshuang |4 oth | |
| 700 | 1 | |a Hu, Xiaojun |4 oth | |
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10.1016/j.soilbio.2014.04.006 doi GBVA2014023000018.pica (DE-627)ELV018114520 (ELSEVIER)S0038-0717(14)00126-6 DE-627 ger DE-627 rakwb eng 570 540 570 DE-600 540 DE-600 540 VZ 35.18 bkl 33.68 bkl 52.78 bkl 58.20 bkl Yang, Jisong verfasserin aut Dynamics of greenhouse gas formation in relation to freeze/thaw soil depth in a flooded peat marsh of Northeast China 2014transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. Freeze/thaw depth Elsevier Flooded marsh Elsevier Emission Elsevier Concentration Elsevier Greenhouse gases Elsevier Zhou, Wangming oth Liu, Jingshuang oth Hu, Xiaojun oth Enthalten in Elsevier Science Viscusi, Gianluca ELSEVIER Fabrication of novel hybrid materials based on iron-aluminum modified hemp fibers: Comparison between two proposed methodologies 2022 Amsterdam [u.a.] (DE-627)ELV007627629 volume:75 year:2014 pages:202-210 extent:9 https://doi.org/10.1016/j.soilbio.2014.04.006 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.18 Kolloidchemie Grenzflächenchemie VZ 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 52.78 Oberflächentechnik Wärmebehandlung VZ 58.20 Chemische Technologien: Allgemeines VZ AR 75 2014 202-210 9 045F 570 |
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10.1016/j.soilbio.2014.04.006 doi GBVA2014023000018.pica (DE-627)ELV018114520 (ELSEVIER)S0038-0717(14)00126-6 DE-627 ger DE-627 rakwb eng 570 540 570 DE-600 540 DE-600 540 VZ 35.18 bkl 33.68 bkl 52.78 bkl 58.20 bkl Yang, Jisong verfasserin aut Dynamics of greenhouse gas formation in relation to freeze/thaw soil depth in a flooded peat marsh of Northeast China 2014transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. Freeze/thaw depth Elsevier Flooded marsh Elsevier Emission Elsevier Concentration Elsevier Greenhouse gases Elsevier Zhou, Wangming oth Liu, Jingshuang oth Hu, Xiaojun oth Enthalten in Elsevier Science Viscusi, Gianluca ELSEVIER Fabrication of novel hybrid materials based on iron-aluminum modified hemp fibers: Comparison between two proposed methodologies 2022 Amsterdam [u.a.] (DE-627)ELV007627629 volume:75 year:2014 pages:202-210 extent:9 https://doi.org/10.1016/j.soilbio.2014.04.006 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.18 Kolloidchemie Grenzflächenchemie VZ 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 52.78 Oberflächentechnik Wärmebehandlung VZ 58.20 Chemische Technologien: Allgemeines VZ AR 75 2014 202-210 9 045F 570 |
| allfields_unstemmed |
10.1016/j.soilbio.2014.04.006 doi GBVA2014023000018.pica (DE-627)ELV018114520 (ELSEVIER)S0038-0717(14)00126-6 DE-627 ger DE-627 rakwb eng 570 540 570 DE-600 540 DE-600 540 VZ 35.18 bkl 33.68 bkl 52.78 bkl 58.20 bkl Yang, Jisong verfasserin aut Dynamics of greenhouse gas formation in relation to freeze/thaw soil depth in a flooded peat marsh of Northeast China 2014transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. Freeze/thaw depth Elsevier Flooded marsh Elsevier Emission Elsevier Concentration Elsevier Greenhouse gases Elsevier Zhou, Wangming oth Liu, Jingshuang oth Hu, Xiaojun oth Enthalten in Elsevier Science Viscusi, Gianluca ELSEVIER Fabrication of novel hybrid materials based on iron-aluminum modified hemp fibers: Comparison between two proposed methodologies 2022 Amsterdam [u.a.] (DE-627)ELV007627629 volume:75 year:2014 pages:202-210 extent:9 https://doi.org/10.1016/j.soilbio.2014.04.006 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.18 Kolloidchemie Grenzflächenchemie VZ 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 52.78 Oberflächentechnik Wärmebehandlung VZ 58.20 Chemische Technologien: Allgemeines VZ AR 75 2014 202-210 9 045F 570 |
| allfieldsGer |
10.1016/j.soilbio.2014.04.006 doi GBVA2014023000018.pica (DE-627)ELV018114520 (ELSEVIER)S0038-0717(14)00126-6 DE-627 ger DE-627 rakwb eng 570 540 570 DE-600 540 DE-600 540 VZ 35.18 bkl 33.68 bkl 52.78 bkl 58.20 bkl Yang, Jisong verfasserin aut Dynamics of greenhouse gas formation in relation to freeze/thaw soil depth in a flooded peat marsh of Northeast China 2014transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. Freeze/thaw depth Elsevier Flooded marsh Elsevier Emission Elsevier Concentration Elsevier Greenhouse gases Elsevier Zhou, Wangming oth Liu, Jingshuang oth Hu, Xiaojun oth Enthalten in Elsevier Science Viscusi, Gianluca ELSEVIER Fabrication of novel hybrid materials based on iron-aluminum modified hemp fibers: Comparison between two proposed methodologies 2022 Amsterdam [u.a.] (DE-627)ELV007627629 volume:75 year:2014 pages:202-210 extent:9 https://doi.org/10.1016/j.soilbio.2014.04.006 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.18 Kolloidchemie Grenzflächenchemie VZ 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 52.78 Oberflächentechnik Wärmebehandlung VZ 58.20 Chemische Technologien: Allgemeines VZ AR 75 2014 202-210 9 045F 570 |
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10.1016/j.soilbio.2014.04.006 doi GBVA2014023000018.pica (DE-627)ELV018114520 (ELSEVIER)S0038-0717(14)00126-6 DE-627 ger DE-627 rakwb eng 570 540 570 DE-600 540 DE-600 540 VZ 35.18 bkl 33.68 bkl 52.78 bkl 58.20 bkl Yang, Jisong verfasserin aut Dynamics of greenhouse gas formation in relation to freeze/thaw soil depth in a flooded peat marsh of Northeast China 2014transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. Freeze/thaw depth Elsevier Flooded marsh Elsevier Emission Elsevier Concentration Elsevier Greenhouse gases Elsevier Zhou, Wangming oth Liu, Jingshuang oth Hu, Xiaojun oth Enthalten in Elsevier Science Viscusi, Gianluca ELSEVIER Fabrication of novel hybrid materials based on iron-aluminum modified hemp fibers: Comparison between two proposed methodologies 2022 Amsterdam [u.a.] (DE-627)ELV007627629 volume:75 year:2014 pages:202-210 extent:9 https://doi.org/10.1016/j.soilbio.2014.04.006 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.18 Kolloidchemie Grenzflächenchemie VZ 33.68 Oberflächen Dünne Schichten Grenzflächen Physik VZ 52.78 Oberflächentechnik Wärmebehandlung VZ 58.20 Chemische Technologien: Allgemeines VZ AR 75 2014 202-210 9 045F 570 |
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Dynamics of greenhouse gas formation in relation to freeze/thaw soil depth in a flooded peat marsh of Northeast China |
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Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. |
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Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. |
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Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer. |
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GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Flooded peat wetlands are an important global carbon pool and are relatively sensitive to frost degeneration due to global climate change. To study the dynamics of greenhouse gas (GHG) formations in the soil of a flooded peat marsh in response to freeze–thaw processes, CO2, CH4 and N2O fluxes and gas concentrations at different soil depths were measured in a flooded peat marsh in Northeast China during a freeze–thaw period (from November 2004 to July 2005). During the freeze period, the gas concentrations underneath the frozen soil increased as the freeze developed until the soil completely froze in the root (15−35 cm) and peat (35−80 cm) layers. The highest gas concentrations accumulated in the gley layer (80−120 cm) when the greatest freeze depth formed. During the thaw period, the gas concentrations increased above the frozen layer (15−60 cm); in contrast, the gas concentrations underneath the frozen layer (60–120 cm) rapidly decreased when the bottom of the frozen layer began to thaw. GHG emissions from the marsh were not correlated with gas concentrations underneath the frozen layer during the freeze period but were significantly correlated with gas concentrations above the frozen layer (15−60 cm) during the thaw period. The study suggested that large changes in GHG formation dynamics occurred underneath the frost in the flooded peat marsh when the frost began to thaw due to gas physical diffusion within the peat layer.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Freeze/thaw depth</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Flooded marsh</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Emission</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Concentration</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Greenhouse gases</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhou, Wangming</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Liu, Jingshuang</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Hu, Xiaojun</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier Science</subfield><subfield code="a">Viscusi, Gianluca ELSEVIER</subfield><subfield code="t">Fabrication of novel hybrid materials based on iron-aluminum modified hemp fibers: Comparison between two proposed methodologies</subfield><subfield code="d">2022</subfield><subfield code="g">Amsterdam [u.a.]</subfield><subfield code="w">(DE-627)ELV007627629</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:75</subfield><subfield code="g">year:2014</subfield><subfield code="g">pages:202-210</subfield><subfield code="g">extent:9</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.soilbio.2014.04.006</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">35.18</subfield><subfield code="j">Kolloidchemie</subfield><subfield code="j">Grenzflächenchemie</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">33.68</subfield><subfield code="j">Oberflächen</subfield><subfield code="j">Dünne Schichten</subfield><subfield code="j">Grenzflächen</subfield><subfield code="x">Physik</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">52.78</subfield><subfield code="j">Oberflächentechnik</subfield><subfield code="j">Wärmebehandlung</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">58.20</subfield><subfield code="j">Chemische Technologien: Allgemeines</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">75</subfield><subfield code="j">2014</subfield><subfield code="h">202-210</subfield><subfield code="g">9</subfield></datafield><datafield tag="953" ind1=" " ind2=" "><subfield code="2">045F</subfield><subfield code="a">570</subfield></datafield></record></collection>
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