IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Greater stimulation of greenhouse gas emissions by stored yak urine than urea in an alpine steppe soil from the Qinghai-Tibetan Plateau: A laboratory study
Cai, Yanjiang1,2; Du, Ziyin1; Yan, Yan1; Wang, Xiaodan1; Liu, Xiuping3
Corresponding AuthorYanjiang Cai
2017
Source PublicationGRASSLAND SCIENCE
ISSN1744-6961
EISSN1744-697X
Volume63Issue:3Pages:196-207
SubtypeArticle
Abstract

Urine deposition by grazing animals, with urea as the major constituent, is an important nitrogen (N) source in grassland ecosystems and may affect the production of three potent greenhouse gases (GHGs): nitrous oxide (N2O), methane (CH4) and carbon dioxide (CO2). However, owing to the greater chemical complexity of urine, the effect of urine on GHG emissions may differ from that of urea, and this difference has not been well reported. A short-term laboratory study was conducted to examine the influence of stored yak urine and urea at addition rates of 350 and 700 mg N m(-1) soil on GHG emissions at 20 and 60% water holding capacity (WHC) in an alpine steppe soil from the Qinghai-Tibetan Plateau. Compared with no N addition, urea led to greater increases in soil ammonium N (NH4+-N) concentrations, while yak urine resulted in a greater increase in soil dissolved organic carbon concentrations. Greater (P < 0.05) cumulative N2O and CH4 emissions occurred under 60% than 20% WHC, but soil moisture content did not affect CO2 emissions (P > 0.05). There were no statistically significant (P > 0.05) differences in N2O or CH4 emissions between the two N-addition rates, regardless of N type. The increases in N2O and CH4 emissions after N addition were greater in the urine than in the urea treatments, particularly under 60% WHC. The average CO2 emissions for the two soil moisture contents in the urine treatments increased with increasing N-addition rate, but the two urea treatments showed similar values to the control. The greater GHG emissions in the stored yak urine treatments were probably due to the existence of intrinsic organic carbon. Our results suggest that fresh yak urine may also possibly cause more GHG losses than urea under equivalent N application rates in alpine steppe soil on the Qinghai-Tibetan Plateau.

KeywordAlpine Grassland Climate Change Dissolved Organic c Excreta N2o
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1111/grs.12164
WOS Subject ExtendedAgriculture
Indexed BySCI
WOS KeywordNITROUS-OXIDE EMISSIONS ; N2O EMISSIONS ; CATTLE URINE ; NITRIFICATION INHIBITOR ; CARBON-DIOXIDE ; HIPPURIC-ACID ; MICROBIAL BIOMASS ; METHANE OXIDATION ; GRASSLAND SOIL ; PASTURE SOIL
Language英语
Quartile4区
TOP
WOS SubjectAgriculture, Multidisciplinary ; Agronomy
WOS IDWOS:000404757800007
Funding OrganizationNational Natural Science Foundation of China(41573070) ; Chinese Academy of Sciences(XDB03030505) ; State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences(Y412201403)
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18839
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, Peoples R China
2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China
3.Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Shijiazhuang, 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
Recommended Citation
GB/T 7714
Cai, Yanjiang,Du, Ziyin,Yan, Yan,et al. Greater stimulation of greenhouse gas emissions by stored yak urine than urea in an alpine steppe soil from the Qinghai-Tibetan Plateau: A laboratory study[J]. GRASSLAND SCIENCE,2017,63(3):196-207.
APA Cai, Yanjiang,Du, Ziyin,Yan, Yan,Wang, Xiaodan,&Liu, Xiuping.(2017).Greater stimulation of greenhouse gas emissions by stored yak urine than urea in an alpine steppe soil from the Qinghai-Tibetan Plateau: A laboratory study.GRASSLAND SCIENCE,63(3),196-207.
MLA Cai, Yanjiang,et al."Greater stimulation of greenhouse gas emissions by stored yak urine than urea in an alpine steppe soil from the Qinghai-Tibetan Plateau: A laboratory study".GRASSLAND SCIENCE 63.3(2017):196-207.
Files in This Item:
File Name/Size DocType Version Access License
Greater stimulation (624KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Cai, Yanjiang]'s Articles
[Du, Ziyin]'s Articles
[Yan, Yan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Cai, Yanjiang]'s Articles
[Du, Ziyin]'s Articles
[Yan, Yan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Cai, Yanjiang]'s Articles
[Du, Ziyin]'s Articles
[Yan, Yan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Greater stimulation of greenhouse gas emissions by stored yak urine than urea in an alpine steppe soil from the Qinghai-Tibetan Plateau: A laboratory study.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.