Lateral transport of soil carbon and land-atmosphere CO^sub 2^ flux induced by water erosion in China
Soil erosion by water impacts soil organic carbon stocks and alters CO^sub 2^ fluxes exchanged with the atmosphere. The role of erosion as a net sink or source of atmospheric CO^sub 2^ remains highly debated, and little information is available at scales larger than small catchments or regions. This...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Yao Yue [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Proceedings of the National Academy of Sciences of the United States of America - Washington, DC : NAS, 1877, 113(2016), 24, Seite 6617 |
|---|---|
| Übergeordnetes Werk: |
volume:113 ; year:2016 ; number:24 ; pages:6617 |
| Links: |
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| 245 | 1 | 0 | |a Lateral transport of soil carbon and land-atmosphere CO^sub 2^ flux induced by water erosion in China |
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| 520 | |a Soil erosion by water impacts soil organic carbon stocks and alters CO^sub 2^ fluxes exchanged with the atmosphere. The role of erosion as a net sink or source of atmospheric CO^sub 2^ remains highly debated, and little information is available at scales larger than small catchments or regions. This study attempts to quantify the lateral transport of soil carbon and consequent land-atmosphere CO^sub 2^ fluxes at the scale of China, where severe erosion has occurred for several decades. Based on the distribution of soil erosion rates derived from detailed national surveys and soil carbon inventories, here we show that water erosion in China displaced 180 ± 80 Mt C.y^sup -1^ of soil organic carbon during the last two decades, and this resulted a net land sink for atmospheric CO^sub 2^ of 45 ± 25 Mt C.y^sup -1^, equivalent to 8-37% of the terrestrial carbon sink previously assessed in China. Interestingly, the "hotspots," largely distributed in mountainous regions in the most intensive sink areas (>40 g C.m^sup -2^.y^sup -1^), occupy only 1.5% of the total area suffering water erosion, but contribute 19.3% to the national erosion-induced CO^sub 2^ sink. The erosion-induced CO^sub 2^ sink underwent a remarkable reduction of about 16% from the middle 1990s to the early 2010s, due to diminishing erosion after the implementation of large-scale soil conservation programs. These findings demonstrate the necessity of including erosion-induced CO^sub 2^ in the terrestrial budget, hence reducing the level of uncertainty. | ||
| 650 | 4 | |a Soil erosion | |
| 650 | 4 | |a Carbon dioxide | |
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| 700 | 0 | |a Yichu Wang |4 oth | |
| 700 | 0 | |a Adrian Chappell |4 oth | |
| 700 | 0 | |a Kristof Van Oost |4 oth | |
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PQ20160719 (DE-627)OLC1978651694 (DE-599)GBVOLC1978651694 (PRQ)proquest_journals_17992320520 (KEY)0583363920160000113002406617lateraltransportofsoilcarbonandlandatmospherecosub DE-627 ger DE-627 rakwb eng 500 DNB 570 AVZ LING fid BIODIV fid Yao Yue verfasserin aut Lateral transport of soil carbon and land-atmosphere CO^sub 2^ flux induced by water erosion in China 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Soil erosion by water impacts soil organic carbon stocks and alters CO^sub 2^ fluxes exchanged with the atmosphere. The role of erosion as a net sink or source of atmospheric CO^sub 2^ remains highly debated, and little information is available at scales larger than small catchments or regions. This study attempts to quantify the lateral transport of soil carbon and consequent land-atmosphere CO^sub 2^ fluxes at the scale of China, where severe erosion has occurred for several decades. Based on the distribution of soil erosion rates derived from detailed national surveys and soil carbon inventories, here we show that water erosion in China displaced 180 ± 80 Mt C.y^sup -1^ of soil organic carbon during the last two decades, and this resulted a net land sink for atmospheric CO^sub 2^ of 45 ± 25 Mt C.y^sup -1^, equivalent to 8-37% of the terrestrial carbon sink previously assessed in China. Interestingly, the "hotspots," largely distributed in mountainous regions in the most intensive sink areas (>40 g C.m^sup -2^.y^sup -1^), occupy only 1.5% of the total area suffering water erosion, but contribute 19.3% to the national erosion-induced CO^sub 2^ sink. The erosion-induced CO^sub 2^ sink underwent a remarkable reduction of about 16% from the middle 1990s to the early 2010s, due to diminishing erosion after the implementation of large-scale soil conservation programs. These findings demonstrate the necessity of including erosion-induced CO^sub 2^ in the terrestrial budget, hence reducing the level of uncertainty. Soil erosion Carbon dioxide Atmosphere Water Jinren Ni oth Philippe Ciais oth Shilong Piao oth Tao Wang oth Mengtian Huang oth Alistair G L Borthwick oth Tianhong Li oth Yichu Wang oth Adrian Chappell oth Kristof Van Oost oth Enthalten in Proceedings of the National Academy of Sciences of the United States of America Washington, DC : NAS, 1877 113(2016), 24, Seite 6617 (DE-627)129505269 (DE-600)209104-5 (DE-576)014909189 0027-8424 nnns volume:113 year:2016 number:24 pages:6617 http://search.proquest.com/docview/1799232052 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-LING FID-BIODIV SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-MAT SSG-OPC-FOR GBV_ILN_40 GBV_ILN_59 AR 113 2016 24 6617 |
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PQ20160719 (DE-627)OLC1978651694 (DE-599)GBVOLC1978651694 (PRQ)proquest_journals_17992320520 (KEY)0583363920160000113002406617lateraltransportofsoilcarbonandlandatmospherecosub DE-627 ger DE-627 rakwb eng 500 DNB 570 AVZ LING fid BIODIV fid Yao Yue verfasserin aut Lateral transport of soil carbon and land-atmosphere CO^sub 2^ flux induced by water erosion in China 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Soil erosion by water impacts soil organic carbon stocks and alters CO^sub 2^ fluxes exchanged with the atmosphere. The role of erosion as a net sink or source of atmospheric CO^sub 2^ remains highly debated, and little information is available at scales larger than small catchments or regions. This study attempts to quantify the lateral transport of soil carbon and consequent land-atmosphere CO^sub 2^ fluxes at the scale of China, where severe erosion has occurred for several decades. Based on the distribution of soil erosion rates derived from detailed national surveys and soil carbon inventories, here we show that water erosion in China displaced 180 ± 80 Mt C.y^sup -1^ of soil organic carbon during the last two decades, and this resulted a net land sink for atmospheric CO^sub 2^ of 45 ± 25 Mt C.y^sup -1^, equivalent to 8-37% of the terrestrial carbon sink previously assessed in China. Interestingly, the "hotspots," largely distributed in mountainous regions in the most intensive sink areas (>40 g C.m^sup -2^.y^sup -1^), occupy only 1.5% of the total area suffering water erosion, but contribute 19.3% to the national erosion-induced CO^sub 2^ sink. The erosion-induced CO^sub 2^ sink underwent a remarkable reduction of about 16% from the middle 1990s to the early 2010s, due to diminishing erosion after the implementation of large-scale soil conservation programs. These findings demonstrate the necessity of including erosion-induced CO^sub 2^ in the terrestrial budget, hence reducing the level of uncertainty. Soil erosion Carbon dioxide Atmosphere Water Jinren Ni oth Philippe Ciais oth Shilong Piao oth Tao Wang oth Mengtian Huang oth Alistair G L Borthwick oth Tianhong Li oth Yichu Wang oth Adrian Chappell oth Kristof Van Oost oth Enthalten in Proceedings of the National Academy of Sciences of the United States of America Washington, DC : NAS, 1877 113(2016), 24, Seite 6617 (DE-627)129505269 (DE-600)209104-5 (DE-576)014909189 0027-8424 nnns volume:113 year:2016 number:24 pages:6617 http://search.proquest.com/docview/1799232052 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-LING FID-BIODIV SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-MAT SSG-OPC-FOR GBV_ILN_40 GBV_ILN_59 AR 113 2016 24 6617 |
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PQ20160719 (DE-627)OLC1978651694 (DE-599)GBVOLC1978651694 (PRQ)proquest_journals_17992320520 (KEY)0583363920160000113002406617lateraltransportofsoilcarbonandlandatmospherecosub DE-627 ger DE-627 rakwb eng 500 DNB 570 AVZ LING fid BIODIV fid Yao Yue verfasserin aut Lateral transport of soil carbon and land-atmosphere CO^sub 2^ flux induced by water erosion in China 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Soil erosion by water impacts soil organic carbon stocks and alters CO^sub 2^ fluxes exchanged with the atmosphere. The role of erosion as a net sink or source of atmospheric CO^sub 2^ remains highly debated, and little information is available at scales larger than small catchments or regions. This study attempts to quantify the lateral transport of soil carbon and consequent land-atmosphere CO^sub 2^ fluxes at the scale of China, where severe erosion has occurred for several decades. Based on the distribution of soil erosion rates derived from detailed national surveys and soil carbon inventories, here we show that water erosion in China displaced 180 ± 80 Mt C.y^sup -1^ of soil organic carbon during the last two decades, and this resulted a net land sink for atmospheric CO^sub 2^ of 45 ± 25 Mt C.y^sup -1^, equivalent to 8-37% of the terrestrial carbon sink previously assessed in China. Interestingly, the "hotspots," largely distributed in mountainous regions in the most intensive sink areas (>40 g C.m^sup -2^.y^sup -1^), occupy only 1.5% of the total area suffering water erosion, but contribute 19.3% to the national erosion-induced CO^sub 2^ sink. The erosion-induced CO^sub 2^ sink underwent a remarkable reduction of about 16% from the middle 1990s to the early 2010s, due to diminishing erosion after the implementation of large-scale soil conservation programs. These findings demonstrate the necessity of including erosion-induced CO^sub 2^ in the terrestrial budget, hence reducing the level of uncertainty. Soil erosion Carbon dioxide Atmosphere Water Jinren Ni oth Philippe Ciais oth Shilong Piao oth Tao Wang oth Mengtian Huang oth Alistair G L Borthwick oth Tianhong Li oth Yichu Wang oth Adrian Chappell oth Kristof Van Oost oth Enthalten in Proceedings of the National Academy of Sciences of the United States of America Washington, DC : NAS, 1877 113(2016), 24, Seite 6617 (DE-627)129505269 (DE-600)209104-5 (DE-576)014909189 0027-8424 nnns volume:113 year:2016 number:24 pages:6617 http://search.proquest.com/docview/1799232052 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-LING FID-BIODIV SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-MAT SSG-OPC-FOR GBV_ILN_40 GBV_ILN_59 AR 113 2016 24 6617 |
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PQ20160719 (DE-627)OLC1978651694 (DE-599)GBVOLC1978651694 (PRQ)proquest_journals_17992320520 (KEY)0583363920160000113002406617lateraltransportofsoilcarbonandlandatmospherecosub DE-627 ger DE-627 rakwb eng 500 DNB 570 AVZ LING fid BIODIV fid Yao Yue verfasserin aut Lateral transport of soil carbon and land-atmosphere CO^sub 2^ flux induced by water erosion in China 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Soil erosion by water impacts soil organic carbon stocks and alters CO^sub 2^ fluxes exchanged with the atmosphere. The role of erosion as a net sink or source of atmospheric CO^sub 2^ remains highly debated, and little information is available at scales larger than small catchments or regions. This study attempts to quantify the lateral transport of soil carbon and consequent land-atmosphere CO^sub 2^ fluxes at the scale of China, where severe erosion has occurred for several decades. Based on the distribution of soil erosion rates derived from detailed national surveys and soil carbon inventories, here we show that water erosion in China displaced 180 ± 80 Mt C.y^sup -1^ of soil organic carbon during the last two decades, and this resulted a net land sink for atmospheric CO^sub 2^ of 45 ± 25 Mt C.y^sup -1^, equivalent to 8-37% of the terrestrial carbon sink previously assessed in China. Interestingly, the "hotspots," largely distributed in mountainous regions in the most intensive sink areas (>40 g C.m^sup -2^.y^sup -1^), occupy only 1.5% of the total area suffering water erosion, but contribute 19.3% to the national erosion-induced CO^sub 2^ sink. The erosion-induced CO^sub 2^ sink underwent a remarkable reduction of about 16% from the middle 1990s to the early 2010s, due to diminishing erosion after the implementation of large-scale soil conservation programs. These findings demonstrate the necessity of including erosion-induced CO^sub 2^ in the terrestrial budget, hence reducing the level of uncertainty. Soil erosion Carbon dioxide Atmosphere Water Jinren Ni oth Philippe Ciais oth Shilong Piao oth Tao Wang oth Mengtian Huang oth Alistair G L Borthwick oth Tianhong Li oth Yichu Wang oth Adrian Chappell oth Kristof Van Oost oth Enthalten in Proceedings of the National Academy of Sciences of the United States of America Washington, DC : NAS, 1877 113(2016), 24, Seite 6617 (DE-627)129505269 (DE-600)209104-5 (DE-576)014909189 0027-8424 nnns volume:113 year:2016 number:24 pages:6617 http://search.proquest.com/docview/1799232052 GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-LING FID-BIODIV SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-MAT SSG-OPC-FOR GBV_ILN_40 GBV_ILN_59 AR 113 2016 24 6617 |
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Yao Yue @@aut@@ Jinren Ni @@oth@@ Philippe Ciais @@oth@@ Shilong Piao @@oth@@ Tao Wang @@oth@@ Mengtian Huang @@oth@@ Alistair G L Borthwick @@oth@@ Tianhong Li @@oth@@ Yichu Wang @@oth@@ Adrian Chappell @@oth@@ Kristof Van Oost @@oth@@ |
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Lateral transport of soil carbon and land-atmosphere CO^sub 2^ flux induced by water erosion in China |
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Lateral transport of soil carbon and land-atmosphere CO^sub 2^ flux induced by water erosion in China |
| abstract |
Soil erosion by water impacts soil organic carbon stocks and alters CO^sub 2^ fluxes exchanged with the atmosphere. The role of erosion as a net sink or source of atmospheric CO^sub 2^ remains highly debated, and little information is available at scales larger than small catchments or regions. This study attempts to quantify the lateral transport of soil carbon and consequent land-atmosphere CO^sub 2^ fluxes at the scale of China, where severe erosion has occurred for several decades. Based on the distribution of soil erosion rates derived from detailed national surveys and soil carbon inventories, here we show that water erosion in China displaced 180 ± 80 Mt C.y^sup -1^ of soil organic carbon during the last two decades, and this resulted a net land sink for atmospheric CO^sub 2^ of 45 ± 25 Mt C.y^sup -1^, equivalent to 8-37% of the terrestrial carbon sink previously assessed in China. Interestingly, the "hotspots," largely distributed in mountainous regions in the most intensive sink areas (>40 g C.m^sup -2^.y^sup -1^), occupy only 1.5% of the total area suffering water erosion, but contribute 19.3% to the national erosion-induced CO^sub 2^ sink. The erosion-induced CO^sub 2^ sink underwent a remarkable reduction of about 16% from the middle 1990s to the early 2010s, due to diminishing erosion after the implementation of large-scale soil conservation programs. These findings demonstrate the necessity of including erosion-induced CO^sub 2^ in the terrestrial budget, hence reducing the level of uncertainty. |
| abstractGer |
Soil erosion by water impacts soil organic carbon stocks and alters CO^sub 2^ fluxes exchanged with the atmosphere. The role of erosion as a net sink or source of atmospheric CO^sub 2^ remains highly debated, and little information is available at scales larger than small catchments or regions. This study attempts to quantify the lateral transport of soil carbon and consequent land-atmosphere CO^sub 2^ fluxes at the scale of China, where severe erosion has occurred for several decades. Based on the distribution of soil erosion rates derived from detailed national surveys and soil carbon inventories, here we show that water erosion in China displaced 180 ± 80 Mt C.y^sup -1^ of soil organic carbon during the last two decades, and this resulted a net land sink for atmospheric CO^sub 2^ of 45 ± 25 Mt C.y^sup -1^, equivalent to 8-37% of the terrestrial carbon sink previously assessed in China. Interestingly, the "hotspots," largely distributed in mountainous regions in the most intensive sink areas (>40 g C.m^sup -2^.y^sup -1^), occupy only 1.5% of the total area suffering water erosion, but contribute 19.3% to the national erosion-induced CO^sub 2^ sink. The erosion-induced CO^sub 2^ sink underwent a remarkable reduction of about 16% from the middle 1990s to the early 2010s, due to diminishing erosion after the implementation of large-scale soil conservation programs. These findings demonstrate the necessity of including erosion-induced CO^sub 2^ in the terrestrial budget, hence reducing the level of uncertainty. |
| abstract_unstemmed |
Soil erosion by water impacts soil organic carbon stocks and alters CO^sub 2^ fluxes exchanged with the atmosphere. The role of erosion as a net sink or source of atmospheric CO^sub 2^ remains highly debated, and little information is available at scales larger than small catchments or regions. This study attempts to quantify the lateral transport of soil carbon and consequent land-atmosphere CO^sub 2^ fluxes at the scale of China, where severe erosion has occurred for several decades. Based on the distribution of soil erosion rates derived from detailed national surveys and soil carbon inventories, here we show that water erosion in China displaced 180 ± 80 Mt C.y^sup -1^ of soil organic carbon during the last two decades, and this resulted a net land sink for atmospheric CO^sub 2^ of 45 ± 25 Mt C.y^sup -1^, equivalent to 8-37% of the terrestrial carbon sink previously assessed in China. Interestingly, the "hotspots," largely distributed in mountainous regions in the most intensive sink areas (>40 g C.m^sup -2^.y^sup -1^), occupy only 1.5% of the total area suffering water erosion, but contribute 19.3% to the national erosion-induced CO^sub 2^ sink. The erosion-induced CO^sub 2^ sink underwent a remarkable reduction of about 16% from the middle 1990s to the early 2010s, due to diminishing erosion after the implementation of large-scale soil conservation programs. These findings demonstrate the necessity of including erosion-induced CO^sub 2^ in the terrestrial budget, hence reducing the level of uncertainty. |
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