IGSNRR OpenIR
The effects of warming and nitrogen addition on ecosystem respiration in a Tibetan alpine meadow: The significance of winter warming
Zong, Ning1; Geng, Shoubao1,2; Duan, Cheng1,2; Shi, Peili1,2; Chai, Xi1,2; Zhang, Xianzhou1
2018-10-01
Source PublicationECOLOGY AND EVOLUTION
ISSN2045-7758
Volume8Issue:20Pages:10113-10125
Corresponding AuthorZong, Ning(zongning@igsnrr.ac.cn) ; Shi, Peili(shipl@igsnrr.ac.cn)
AbstractIn recent decades, global warming has become an indisputable fact on the Tibetan Plateau. Alpine ecosystems are very sensitive to global warming, and the impact may depend on the degree of atmospheric nitrogen (N) deposition. The previous studies have paid more attention to year-round warming, but the effect of winter warming has been unstudied. In this study, a manipulative experiment was conducted, consisting of warming and N addition. It was carried out since 2010 in an alpine meadow, and three types of warming treatments were set up: no warming (NW), year-round (YW), and winter warming (WW). Warming significantly increased air and soil temperature, but decreased soil moisture. Under no N addition, YW showed significantly decreased ecosystem respiration (Reco) in 2012, and WW decreased Reco in 2014. Under N addition, neither YW nor WW had significant effects on Reco, indicating that N addition compensated the negative effect of warming on Reco. Annually, YW and WW decreased ecosystem carbon (C) emissions, and the extent of the reduction was even larger under WW. Under no N addition, both YW and WW significantly decreased aboveground biomass. Moreover, especially under no N, YW and WW significantly decreased soil inorganic N. WW also had negative effects on soil microbial biomass C. Structure equation modeling showed that soil moisture was the most important factors controlling Reco, and soil inorganic N content and microbial biomass C could explain 46.6% and 16.8% of the variation of Reco. The findings indicate that soil property changes under warming had substantial effects on ecosystem C efflux. The inhibitory effects of winter warming on ecosystem C efflux were mainly attributed to the decline of soil N and microbial biomass. Thus, the effects of winter warming on ecosystem C emissions in this semiarid alpine meadow are not as serious as expected and largely depend on N deposition.
Keywordalpine meadow ecosystem respiration N addition simulated warming Tibetan Plateau
DOI10.1002/ece3.4484
WOS KeywordSOIL MICROBIAL BIOMASS ; TEMPERATE OLD FIELD ; FREEZE-THAW CYCLES ; CLIMATE-CHANGE ; CO2 EFFLUX ; TERRESTRIAL ECOSYSTEMS ; BIOGEOCHEMICAL CYCLES ; SPECIES COMPOSITION ; TUNDRA COMMUNITIES ; SEMIARID GRASSLAND
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41703079] ; National Natural Science Foundation of China[31870406] ; National Natural Science Foundation of China[31470506] ; West Light Foundation of the Chinese Academy of Sciences[2015] ; National Key Research and Development Program[2016YFC0501803]
Funding OrganizationNational Natural Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; National Key Research and Development Program
WOS Research AreaEnvironmental Sciences & Ecology ; Evolutionary Biology
WOS SubjectEcology ; Evolutionary Biology
WOS IDWOS:000449529800013
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52463
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZong, Ning; Shi, Peili
Affiliation1.Chinese Acad Sci, Lhasa Natl Ecol Res Stn, Key Lab Ecosyst Network Observat & Modelling, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zong, Ning,Geng, Shoubao,Duan, Cheng,et al. The effects of warming and nitrogen addition on ecosystem respiration in a Tibetan alpine meadow: The significance of winter warming[J]. ECOLOGY AND EVOLUTION,2018,8(20):10113-10125.
APA Zong, Ning,Geng, Shoubao,Duan, Cheng,Shi, Peili,Chai, Xi,&Zhang, Xianzhou.(2018).The effects of warming and nitrogen addition on ecosystem respiration in a Tibetan alpine meadow: The significance of winter warming.ECOLOGY AND EVOLUTION,8(20),10113-10125.
MLA Zong, Ning,et al."The effects of warming and nitrogen addition on ecosystem respiration in a Tibetan alpine meadow: The significance of winter warming".ECOLOGY AND EVOLUTION 8.20(2018):10113-10125.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zong, Ning]'s Articles
[Geng, Shoubao]'s Articles
[Duan, Cheng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zong, Ning]'s Articles
[Geng, Shoubao]'s Articles
[Duan, Cheng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zong, Ning]'s Articles
[Geng, Shoubao]'s Articles
[Duan, Cheng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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