Potential short-term effects of yak and Tibetan sheep dung on greenhouse gas emissions in two alpine grassland soils under laboratory conditions
文献类型：期刊论文
| 作者 | Cai, Yanjiang1 ; Wang, Xiaodan1; Ding, Weixin2; Tian, Linlin1; Zhao, Hui1; Lu, Xuyang1
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| 刊名 | BIOLOGY AND FERTILITY OF SOILS
 |
| 出版日期 | 2013-11-01 |
| 卷号 | 49期号:8页码:1215-1226 |
| 关键词 | N2O CH4 Dung patch Alpine grassland Qinghai-Tibetan Plateau |
| ISSN号 | 0178-2762 |
| 通讯作者 | Cai Yanjiang（蔡延江） |
| 英文摘要 | Yak and Tibetan sheep graze extensively on natural grasslands in the Qinghai-Tibetan Plateau, and large amounts of excrement are directly deposited onto alpine grasslands. However, information on greenhouse gas (GHG) emissions from this excrement is limited. This study evaluated the short-term effects of yak and Tibetan sheep dung on nitrous oxide (N2O), methane (CH4), and carbon dioxide (CO2) emissions from alpine steppe soil at a water holding capacity (WHC) of 40 or 60 % and from alpine meadow soil at a WHC of 60 or 80 % under laboratory conditions. Cumulative N2O emissions over a 15-day incubation period at low soil moisture conditions ranged from 111 to 232 mu g N2O-N kg soil(-1) in the yak dung treatments, significantly (P < 0.01) higher than that of sheep dung treatments (28.7 to 33.7 mu g N2O-N kg soil(-1)) and untreated soils (1.04-6.94 mu g N2O-N kg soil(-1)). At high soil moisture conditions, N2O emissions were higher from sheep dung than yak dung and non-treated soils. No significant difference was found between the yak dung and non-treated alpine meadow soil at 80 % WHC. Low N2O emission in the yak dung treatment from relatively wet soil was probably due to complete denitrification to N-2. Yak dung markedly (P < 0.001) increased CH4 and CO2 emissions, likely being the main source of these two gases. The addition of sheep dung markedly (P < 0.001) elevated CO2 emissions. Dung application significantly (P < 0.01) increased global warming potential, particularly for alpine steppe soil. In conclusion, our findings suggest that yak and Tibetan sheep dung deposited on alpine grassland soils may increase GHG emissions. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | 生态学 ; 土壤学 ; 环境学 |
| 类目[WOS] | Soil Science |
| 研究领域[WOS] | Agriculture |
| 关键词[WOS] | NITROUS-OXIDE EMISSIONS ; CARBON-DIOXIDE ; METHANE FLUXES ; EXCRETA DEPOSITION ; GRAZING ANIMALS ; INNER-MONGOLIA ; GRAZED PASTURE ; NO EMISSIONS ; N2O ; CATTLE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000326374900021 |
| 公开日期 | 2013-11-21 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6511]  |
| 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 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Yanjiang,Wang, Xiaodan,Ding, Weixin,et al. Potential short-term effects of yak and Tibetan sheep dung on greenhouse gas emissions in two alpine grassland soils under laboratory conditions[J]. BIOLOGY AND FERTILITY OF SOILS,2013,49(8):1215-1226. |
| APA | Cai, Yanjiang,Wang, Xiaodan,Ding, Weixin,Tian, Linlin,Zhao, Hui,&Lu, Xuyang.(2013).Potential short-term effects of yak and Tibetan sheep dung on greenhouse gas emissions in two alpine grassland soils under laboratory conditions.BIOLOGY AND FERTILITY OF SOILS,49(8),1215-1226. |
| MLA | Cai, Yanjiang,et al."Potential short-term effects of yak and Tibetan sheep dung on greenhouse gas emissions in two alpine grassland soils under laboratory conditions".BIOLOGY AND FERTILITY OF SOILS 49.8(2013):1215-1226. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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