The impact of excretal returns from yak and Tibetan sheep dung on nitrous oxide emissions in an alpine steppe on the Qinghai-Tibetan Plateau | |
Cai, Yanjiang; Wang, Xiaodan; Tian, Linlin; Zhao, Hui; Lu, Xuyang; Yan, Yan | |
刊名 | SOIL BIOLOGY & BIOCHEMISTRY |
2014-09-01 | |
卷号 | 76页码:90-99 |
关键词 | N2O emissions Emission factors Excretal return Greenhouse gas Alpine grassland |
ISSN号 | 0038-0717 |
通讯作者 | Wang Xiaodan(王小丹) |
英文摘要 | This study describes the impact of excretal returns derived from livestock dung on nitrous oxide (N2O) emissions in a grazed alpine grassland ecosystem. N2O flux, vegetation and soil characteristics were measured in an alpine steppe on the Qinghai-Tibetan Plateau. Measurements were obtained from control (CK) plot and experimental plot to which either yak dung (YD) or Tibetan sheep dung (SD) was added. We found significantly lower surface soil temperature and higher soil moisture in the YD plot than in either the CK or SD plot. The application of YD resulted in significantly less biomass of aboveground vegetation, lower carbon and nitrogen uptake, and significantly higher cumulative N2O emission in comparison to the CK or SD treatment. N2O from SD treatment was probably mainly produced via nitrification, while N2O from YD treatment was primarily produced by denitrification. Emission factors of N2O for both YD and SD were far lower than the default values proposed by the IPCC and the release of N2O from YD and SD patches is low. (C) 2014 Elsevier Ltd. All rights reserved. |
学科主题 | 自然地理学 ; 生态学 ; 土壤学 ; 环境学 |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
类目[WOS] | Soil Science |
研究领域[WOS] | Agriculture |
关键词[WOS] | CARBON-DIOXIDE ; CATTLE DUNG ; INNER-MONGOLIA ; METHANE FLUXES ; SOIL-NITROGEN ; N2O FLUXES ; GRASSLAND ; NITRIFICATION ; TEMPERATURE ; PASTURE |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000339695900011 |
公开日期 | 2014-05-29 |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/6951] |
专题 | 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 | Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu, Peoples R China |
推荐引用方式 GB/T 7714 | Cai, Yanjiang,Wang, Xiaodan,Tian, Linlin,et al. The impact of excretal returns from yak and Tibetan sheep dung on nitrous oxide emissions in an alpine steppe on the Qinghai-Tibetan Plateau[J]. SOIL BIOLOGY & BIOCHEMISTRY,2014,76:90-99. |
APA | Cai, Yanjiang,Wang, Xiaodan,Tian, Linlin,Zhao, Hui,Lu, Xuyang,&Yan, Yan.(2014).The impact of excretal returns from yak and Tibetan sheep dung on nitrous oxide emissions in an alpine steppe on the Qinghai-Tibetan Plateau.SOIL BIOLOGY & BIOCHEMISTRY,76,90-99. |
MLA | Cai, Yanjiang,et al."The impact of excretal returns from yak and Tibetan sheep dung on nitrous oxide emissions in an alpine steppe on the Qinghai-Tibetan Plateau".SOIL BIOLOGY & BIOCHEMISTRY 76(2014):90-99. |
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