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

	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
刊名	atmospheric environment
	2005-09-01
卷号	39 期号:29 页码:5255-5259
关键词	aquatic plants diffusive conductivity greenhouse gases global warming potential livestock grazing
合作状况	其它
中文摘要	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.
英文摘要	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.
学科主题	生物科学
WOS标题词	science & technology ; life sciences & biomedicine ; physical sciences
类目[WOS]	environmental sciences ; meteorology & atmospheric sciences
研究领域[WOS]	environmental sciences & ecology ; meteorology & atmospheric sciences
关键词[WOS]	phragmites-australis ; skallingen ; vegetation ; emissions ; exchange ; denmark
收录类别	SCI
语种	英语
WOS记录号	WOS:000232434900004
公开日期	2009-12-09
内容类型	期刊论文
源URL	[http://ir.nwipb.ac.cn/handle/363003/1357]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
作者单位	1.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan 2.CAS, NW Plateau Inst Biol, Xining 810001, Peoples R China 3.Frontier Res Ctr Global Change, Kanazawa Ku, Yokohama, Kanagawa 236001, Japan 4.Univ Tsukuba, Grad Sch Life & Environm Sci, Tsukuba, Ibaraki 3058572, Japan 5.Univ Tsukuba, Inst Biol Sci, Tsukuba, Ibaraki 3058572, Japan
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,2005,39(29):5255-5259.
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,39(29),5255-5259.
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 39.29(2005):5255-5259.