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
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。