IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Potential short-term effects of yak and Tibetan sheep dung on greenhouse gas emissions in two alpine grassland soils under laboratory conditions
Cai, Yanjiang1; Wang, Xiaodan1; Ding, Weixin2; Tian, Linlin1; Zhao, Hui1; Lu, Xuyang1
Corresponding AuthorCai Yanjiang(蔡延江)
2013
Source PublicationBIOLOGY AND FERTILITY OF SOILS
ISSN0178-2762
EISSN1432-0789
Volume49Issue:8Pages:1215-1226
SubtypeArticle
AbstractYak 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.
KeywordN2o Ch4 Dung Patch Alpine Grassland Qinghai-tibetan Plateau
Subject Area生态学 ; 土壤学 ; 环境学
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s00374-013-0821-7
WOS Subject ExtendedAgriculture
Indexed BySCI
WOS KeywordNITROUS-OXIDE EMISSIONS ; CARBON-DIOXIDE ; METHANE FLUXES ; EXCRETA DEPOSITION ; GRAZING ANIMALS ; INNER-MONGOLIA ; GRAZED PASTURE ; NO EMISSIONS ; N2O ; CATTLE
Language英语
Quartile2区
TOP
WOS SubjectSoil Science
WOS IDWOS:000326374900021
Funding OrganizationCAS (Chinese Academy of Sciences) Action-plan for West Development(KZCX2-XB3-08) ; National Natural Science Foundation of China(41201235) ; Natural Science Foundation of Institute of Mountain Hazards and Environment, CAS
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Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6511
Collection山地表生过程与生态调控重点实验室
Affiliation1.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
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
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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.
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