The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau

NWIPB OpenIR

	The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau
	Hirota, M ; Tang, YH ; Hu, QW ; Kato, T ; Hirata, S ; Mo, WH ; Cao, GM ; Mariko, S
	2005-09-01
发表期刊	ATMOSPHERIC ENVIRONMENT ; Hirota Mitsuru, Tang Yanhong, Hu Qiwu, Kato Tomomichi, Hirata Shigeki, Mo Wenhong, Cao Guangmin, Mariko Shigeru.The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau.ATMOSPHERIC ENVIRONMENT,2005,39(29):5255-5259
摘要	To assess the impact of livestock grazing on the emission of greenhouse gases from grazed wetlands, we examined biomass growth of plants, CO2 and CH4 fluxes under grazing and non-grazing conditions on the Qinghai-Tibetan Plateau wetland. After the grazing treatment for a period of about 3 months, net ecosystem CO2 uptake and aboveground biomass were significantly smaller, but ecosystem CH4 emissions were remarkably greater, under grazing conditions than under non-grazing conditions. Examination of the gas-transport system showed that the increased CH4 emissions resulted from mainly the increase of conductance in the gas-transport system of the grazed plants. The sum of global warming potential, which was estimated from the measured CO2 and CH4 fluxes, was 5.6- to 11.3-fold higher under grazing conditions than under non-grazing conditions. The results suggest that livestock grazing may increase the global warming potential of the alpine wetlands. (c) 2005 Elsevier Ltd. All rights reserved.; To assess the impact of livestock grazing on the emission of greenhouse gases from grazed wetlands, we examined biomass growth of plants, CO2 and CH4 fluxes under grazing and non-grazing conditions on the Qinghai-Tibetan Plateau wetland. After the grazing treatment for a period of about 3 months, net ecosystem CO2 uptake and aboveground biomass were significantly smaller, but ecosystem CH4 emissions were remarkably greater, under grazing conditions than under non-grazing conditions. Examination of the gas-transport system showed that the increased CH4 emissions resulted from mainly the increase of conductance in the gas-transport system of the grazed plants. The sum of global warming potential, which was estimated from the measured CO2 and CH4 fluxes, was 5.6- to 11.3-fold higher under grazing conditions than under non-grazing conditions. The results suggest that livestock grazing may increase the global warming potential of the alpine wetlands. (c) 2005 Elsevier Ltd. All rights reserved.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/45752
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Hirota, M,Tang, YH,Hu, QW,et al. The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau[J]. ATMOSPHERIC ENVIRONMENT, Hirota Mitsuru, Tang Yanhong, Hu Qiwu, Kato Tomomichi, Hirata Shigeki, Mo Wenhong, Cao Guangmin, Mariko Shigeru.The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau.ATMOSPHERIC ENVIRONMENT,2005,39(29):5255-5259,2005.
APA	Hirota, M.,Tang, YH.,Hu, QW.,Kato, T.,Hirata, S.,...&Mariko, S.(2005).The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau.ATMOSPHERIC ENVIRONMENT.
MLA	Hirota, M,et al."The potential importance of grazing to the fluxes of carbon dioxide and methane in an alpine wetland on the Qinghai-Tibetan Plateau".ATMOSPHERIC ENVIRONMENT (2005).