中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Effects of grazing and experimental warming on DOC concentrations in the soil solution on the Qinghai-Tibet plateau

文献类型:期刊论文

作者Luo, Caiyun1,2; Xu, Guangping1,2; Wang, Yanfen2; Wang, Shiping1; Lin, Xingwu3; Hu, Yigang1,2; Zhang, Zhenhua1,2; Chang, Xiaofeng1,2; Duan, Jichuang1,2; Su, Ailing1,2
刊名soil biology & biochemistry
出版日期2009-12-01
卷号41期号:12页码:2493-2500
关键词Warming Grazing Infrared heater DOC concentration Soil temperature Soil moisture Alpine meadow
ISSN号0038-0717
中文摘要little information is available about the effects of global warming and land management on dissolved organic carbon (doc) concentration in soil solution in the field. here, for the first time, we used a free-air temperature enhancement (fate) system in a controlled warming-grazing experiment in 2006 and 2007 to test the hypothesis that grazing modifies the response of soil solution doc concentration to experimental warming. warming with no-grazing (wng) significantly increased the average soil solution doc concentration to 40 cm soil depth by 14.1 and 17.2% compared with no-warming with no-grazing (nwng) in 2006 and 2007 respectively based on 1.3-1.4 degrees c soil temperature increase. however, the lack of significant differences among warming with grazing (wg), no-warming with grazing (nwg) and nwng indicate that moderate grazing modified the effect of warming on doc concentration in the soil solution. the effect of grazing on doc concentration in the soil solution varied with sampling date and soil depth. generally, the direct contribution of soil temperature and soil moisture to variation of doc concentration in the soil solution was small. positive correlations were observed between soil solution doc concentration in the surface soil and standing death quality and belowground biomass. the lignin:n ratio in the standing death and belowground biomass at 10 cm soil depth explained 60% of the variation of mean doc concentration at 10 cm soil depth. soil moisture and belowground biomass explained 79% of the variation of the mean soil solution doc concentration to 40 cm soil depth in 2007. (c) 2009 elsevier ltd. all rights reserved.
英文摘要little information is available about the effects of global warming and land management on dissolved organic carbon (doc) concentration in soil solution in the field. here, for the first time, we used a free-air temperature enhancement (fate) system in a controlled warming-grazing experiment in 2006 and 2007 to test the hypothesis that grazing modifies the response of soil solution doc concentration to experimental warming. warming with no-grazing (wng) significantly increased the average soil solution doc concentration to 40 cm soil depth by 14.1 and 17.2% compared with no-warming with no-grazing (nwng) in 2006 and 2007 respectively based on 1.3-1.4 degrees c soil temperature increase. however, the lack of significant differences among warming with grazing (wg), no-warming with grazing (nwg) and nwng indicate that moderate grazing modified the effect of warming on doc concentration in the soil solution. the effect of grazing on doc concentration in the soil solution varied with sampling date and soil depth. generally, the direct contribution of soil temperature and soil moisture to variation of doc concentration in the soil solution was small. positive correlations were observed between soil solution doc concentration in the surface soil and standing death quality and belowground biomass. the lignin:n ratio in the standing death and belowground biomass at 10 cm soil depth explained 60% of the variation of mean doc concentration at 10 cm soil depth. soil moisture and belowground biomass explained 79% of the variation of the mean soil solution doc concentration to 40 cm soil depth in 2007. (c) 2009 elsevier ltd. all rights reserved.
WOS标题词science & technology ; life sciences & biomedicine
类目[WOS]soil science
研究领域[WOS]agriculture
关键词[WOS]dissolved organic-carbon ; leaf-litter decomposition ; climate-change ; terrestrial ecosystems ; nitrogen availability ; arctic ecosystems ; boreal forest ; upland soils ; ice cores ; temperature
收录类别SCI
语种英语
WOS记录号WOS:000272062100015
公开日期2011-12-13
源URL[http://ir.nwipb.ac.cn//handle/363003/1792]  
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.Chinese Acad Sci, NW Inst Plateau Biol, Haibei Alpine Meadow Ecosyst Res Stn, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Qinghai, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Inst Soil Sci Nanjing, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714
Luo, Caiyun,Xu, Guangping,Wang, Yanfen,et al. Effects of grazing and experimental warming on DOC concentrations in the soil solution on the Qinghai-Tibet plateau[J]. soil biology & biochemistry,2009,41(12):2493-2500.
APA Luo, Caiyun.,Xu, Guangping.,Wang, Yanfen.,Wang, Shiping.,Lin, Xingwu.,...&Zhao, Xinquan.(2009).Effects of grazing and experimental warming on DOC concentrations in the soil solution on the Qinghai-Tibet plateau.soil biology & biochemistry,41(12),2493-2500.
MLA Luo, Caiyun,et al."Effects of grazing and experimental warming on DOC concentrations in the soil solution on the Qinghai-Tibet plateau".soil biology & biochemistry 41.12(2009):2493-2500.

入库方式: OAI收割

来源:西北高原生物研究所

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