IGSNRR OpenIR
Interannual variability in net ecosystem carbon production in a rain-fed maize ecosystem and its climatic and biotic controls during 2005-2018
Zhang, Hui1,2; Zhao, Tianhong1; Lyu, Sidan3; Wu, Hang2; Yang, Yang2; Wen, Xuefa3
2021-05-10
Source PublicationPLOS ONE
ISSN1932-6203
Volume16Issue:5Pages:18
Corresponding AuthorZhao, Tianhong(zth@syau.edu.cn) ; Lyu, Sidan(lvsidan@igsnrr.ac.cn)
AbstractInterannual variability (IAV) in net ecosystem carbon production (NEP) plays an important role in the processes of the carbon cycle, but the long-term trends in NEP and the climatic and biotic control of IAV in NEP still remain unclear in agroecosystems. We investigated interannual variability in NEP, expressed as annual values and anomalies, and its climatic and biotic controls using an eddy-covariance dataset for 2005-2018 for rain-fed spring maize in northeastern China. Average annual NEP was 270 +/- 31 g C m(-2)yr (-1), with no significant changes over time. The effects on interannual variability in NEP of gross ecosystem productivity (GEP) that was mainly controlled by soil water content (SWC) and leaf area index (LAI), were more than those of respiration (RE) that was controlled by temperature and LAI. Further, maximum daily NEP (NEPmax) that was dominated by summer vapor pressure deficit explained the largest fraction of annual anomalies in NEP, followed by carbon dioxide uptake period (CUP) that was defined by the beginning date (BDOY) and the end date (EDOY) of CUP. The variability in BDOY was mainly determined by spring precipitation and the effective accumulated temperature, and the variability in EDOY was determined by autumn precipitation, SWC and LAI. NEP may decrease with declining precipitation in the future due to decreasing GEP, NEPmax, or CUP, and irrigation and residues cover may be useful in efforts to maintain current NEP levels. Our results indicate that interannual variability in NEP in agroecosystems may be more sensitive to changes in water conditions (such as precipitation, SWC and VPD) induced by climate changes, while temperature may be an important indirect factor when VPD is dominated.
DOI10.1371/journal.pone.0237684
WOS KeywordSUBTROPICAL CONIFEROUS PLANTATION ; SOIL-MOISTURE ; TEMPERATURE-DEPENDENCE ; DIOXIDE EXCHANGE ; LOESS PLATEAU ; WINTER-WHEAT ; FLUXES ; RESPIRATION ; WATER ; BALANCE
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFC0503904] ; National Natural Science Foundation of China[41671257]
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000664624400002
PublisherPUBLIC LIBRARY SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/163752
Collection中国科学院地理科学与资源研究所
Corresponding AuthorZhao, Tianhong; Lyu, Sidan
Affiliation1.Shenyang Agr Univ, Coll Agron, Shenyang, Peoples R China
2.Liaoning Meteorol Bur, Jinzhou Ecol & Agr Meteorol Ctr, Jinzhou, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Hui,Zhao, Tianhong,Lyu, Sidan,et al. Interannual variability in net ecosystem carbon production in a rain-fed maize ecosystem and its climatic and biotic controls during 2005-2018[J]. PLOS ONE,2021,16(5):18.
APA Zhang, Hui,Zhao, Tianhong,Lyu, Sidan,Wu, Hang,Yang, Yang,&Wen, Xuefa.(2021).Interannual variability in net ecosystem carbon production in a rain-fed maize ecosystem and its climatic and biotic controls during 2005-2018.PLOS ONE,16(5),18.
MLA Zhang, Hui,et al."Interannual variability in net ecosystem carbon production in a rain-fed maize ecosystem and its climatic and biotic controls during 2005-2018".PLOS ONE 16.5(2021):18.
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
[Zhang, Hui]'s Articles
[Zhao, Tianhong]'s Articles
[Lyu, Sidan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, Hui]'s Articles
[Zhao, Tianhong]'s Articles
[Lyu, Sidan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, Hui]'s Articles
[Zhao, Tianhong]'s Articles
[Lyu, Sidan]'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.