Effects of rock fragments on yak dung greenhouse gas emissions on the Qinghai-Tibetan Plateau | |
Du Zi-yin1,2; Wang Xiao-dan1; Liu Xiu-ping3; Cai Yan-jiang1 | |
刊名 | JOURNAL OF MOUNTAIN SCIENCE |
2016-11-01 | |
卷号 | 13期号:11页码:2006-2014 |
关键词 | Rock fragments Yak dung Nitrous oxide Methane Qinghai-Tibetan Plateau |
ISSN号 | 1672-6316 |
通讯作者 | WANG Xiao-dan ; CAI Yan-jiang |
英文摘要 | Dung deposition is an important pathway of nutrient return and redistribution in alpine grasslands of the Qinghai-Tibetan Plateau. To date, information on the greenhouse gas emissions of yak dung on alpine grasslands, especially where there are large amounts of rock fragments, is limited. Our aim, therefore, was to evaluate variations in N2O, CH4, and CO2 emissions from yak dung (CCD), and compare it to dung placed on rock fragments (RCD), alpine steppe soil (CSD), and a soil and rock fragment mixture (RSD) over a 30-day incubation period. The results showed that the total N2O emissions from treatments without soil were significantly (P < 0.05) lower than those from treatments with soil. The highest total CH4 emissions were detected in the CSD treatment, while CH4 losses from treatments without rock fragments were significantly (P < 0.05) greater than those with rock fragments. The total CO2 emissions from the RSD treatment was 6.30%-12.0% lower than those in the other three treatments. The soil beneath yak dung pats elevated the global warming potential (GWP), while the addition of rock fragments to the soil significantly (P < 0.05) decreased the GWP by reducing emissions of the three greenhouse gases. We therefore suggest that interactions between rock fragments and alpine steppe soil are effective in decreasing yak dung greenhouse gas emissions. This finding indicates that rock fragments are an effective medium for reducing greenhouse gas emissions from dung pats, and more attention should therefore be paid to evaluate its ecological impact in future studies. These results should help guide scientific assessments of regional GHG budgets in agricultural ecosystems where the addition of livestock manure to soils with large amounts of rock fragments is common. |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
类目[WOS] | Environmental Sciences |
研究领域[WOS] | Environmental Sciences & Ecology |
关键词[WOS] | NITROUS-OXIDE EMISSION ; EXCRETA DEPOSITION ; METHANE EMISSION ; GRAZING ANIMALS ; N2O EMISSIONS ; PASTURE SOIL ; DENITRIFICATION ; GRASSLAND ; FLUXES ; SLURRY |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000387032600009 |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/17615] |
专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2016_Vol13 No.11 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Shijiazhuang 050021, Peoples R China |
推荐引用方式 GB/T 7714 | Du Zi-yin,Wang Xiao-dan,Liu Xiu-ping,et al. Effects of rock fragments on yak dung greenhouse gas emissions on the Qinghai-Tibetan Plateau[J]. JOURNAL OF MOUNTAIN SCIENCE,2016,13(11):2006-2014. |
APA | Du Zi-yin,Wang Xiao-dan,Liu Xiu-ping,&Cai Yan-jiang.(2016).Effects of rock fragments on yak dung greenhouse gas emissions on the Qinghai-Tibetan Plateau.JOURNAL OF MOUNTAIN SCIENCE,13(11),2006-2014. |
MLA | Du Zi-yin,et al."Effects of rock fragments on yak dung greenhouse gas emissions on the Qinghai-Tibetan Plateau".JOURNAL OF MOUNTAIN SCIENCE 13.11(2016):2006-2014. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
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。
修改评论