IGSNRR OpenIR
Spatial and temporal variation in autochthonous and allochthonous contributors to increased organic carbon and nitrogen burial in a plateau lake
Huang, Changchun1,2,3,4; Yao, Ling5; Zhang, Yunlin6; Huang, Tao1,4; Zhang, Mingli1; Zhu, A-Xing1,3,7; Yang, Hao1,4
2017-12-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume603Pages:390-400
Corresponding AuthorHuang, Changchun(huangchangchun_aaa@163.com)
AbstractIncreased organic carbon and nitrogen accumulation rates (OCAR and ONAR) in lake sediment significantly regulate the global carbon cycle. However, the reasons for and contributors to the increased OCAR and ONAR are unclear. Seven sediment cores, collected in July 2014 from Dianchi Lake, China, were used to evaluate the effects of autochthonous and allochthonous sources on OCAR and ONAR. The results indicate that OCAR and ONAR increased by factors of 4.33 and 7.34 over the past hundred years (1900-2000), particularly after algal blooms began to occur frequently (beginning in the 1980s). Dianchi stored 0.467 +/- 0.0055 Tg (mean value +/- standard deviation) organic carbon (OC) and 0.033 +/- 0.0004 Tg organic nitrogen (ON) after 1986, which is almost equal to the total storage of OC and ON from 1900 to 1985 (OC, 0.468 +/- 0.0022 Tg; ON, 0.032 +/- 0.0002 Tg). OCAR and ONAR increases were due to increasing autochthonous production and allochthonous loading. Examination of the increased OCAR, which was estimated from a newly developed multi-source mixing model, suggests that >90% of increased OCAR was caused by allochthonous sources (such as intensified cultivation, land-use cover change, etc.) in southern and eastern Dianchi and that >70% of the increased OCAR was due to autochthonous sources in western and northern Dianchi Lake. The significant spatial and temporal variation in the contributors to increased OCAR indicates complicated migration and transformation of OC in inland lakes. Land use cover change around Dianchi and the occurrence of algal blooms regulate the contributions of allochthonous and autochthonous sources to the increased OC and ON. (C) 2017 Elsevier B.V. All rights reserved.
KeywordDianchi Lake Algal blooms Human activities Carbon cycling Land-use cover change
DOI10.1016/j.scitotenv.2017.06.118
WOS KeywordN-ALKANES ; LACUSTRINE SEDIMENTS ; ISOTOPIC COMPOSITION ; ENERGY-CONSUMPTION ; DIOXIDE EMISSIONS ; NORTHERN SPAIN ; CO2 EMISSIONS ; INLAND WATERS ; BOREAL LAKES ; CHINA
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41503075] ; National Natural Science Foundation of China[41673108] ; National Natural Science Foundation of China[41571324] ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; State Key Laboratory of Lake Science and Environment[2016SKL005] ; China Postdoctoral Science Foundation Funded Project[2015M581826] ; A-Xing Zhu through the Vilas Associate Award ; Hammel Faculty Fellow Award ; Manasse Chair Professorship from the University of Wisconsin-Madison ; One-Thousand Talents Program of China
Funding OrganizationNational Natural Science Foundation of China ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; State Key Laboratory of Lake Science and Environment ; China Postdoctoral Science Foundation Funded Project ; A-Xing Zhu through the Vilas Associate Award ; Hammel Faculty Fellow Award ; Manasse Chair Professorship from the University of Wisconsin-Madison ; One-Thousand Talents Program of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000405981500041
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/62525
Collection中国科学院地理科学与资源研究所
Corresponding AuthorHuang, Changchun
Affiliation1.Nanjing Normal Univ, Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210023, Jiangsu, Peoples R China
3.Nanjing Normal Univ, Minist Educ, Key Lab Virtual Geog Environm, Nanjing 210023, Jiangsu, Peoples R China
4.Nanjing Normal Univ, Sch Geog Sci, Nanjing 210023, Jiangsu, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China
6.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210023, Jiangsu, Peoples R China
7.Univ Wisconsin, Dept Geog, Madison, WI 53706 USA
Recommended Citation
GB/T 7714
Huang, Changchun,Yao, Ling,Zhang, Yunlin,et al. Spatial and temporal variation in autochthonous and allochthonous contributors to increased organic carbon and nitrogen burial in a plateau lake[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,603:390-400.
APA Huang, Changchun.,Yao, Ling.,Zhang, Yunlin.,Huang, Tao.,Zhang, Mingli.,...&Yang, Hao.(2017).Spatial and temporal variation in autochthonous and allochthonous contributors to increased organic carbon and nitrogen burial in a plateau lake.SCIENCE OF THE TOTAL ENVIRONMENT,603,390-400.
MLA Huang, Changchun,et al."Spatial and temporal variation in autochthonous and allochthonous contributors to increased organic carbon and nitrogen burial in a plateau lake".SCIENCE OF THE TOTAL ENVIRONMENT 603(2017):390-400.
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
[Huang, Changchun]'s Articles
[Yao, Ling]'s Articles
[Zhang, Yunlin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Huang, Changchun]'s Articles
[Yao, Ling]'s Articles
[Zhang, Yunlin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Huang, Changchun]'s Articles
[Yao, Ling]'s Articles
[Zhang, Yunlin]'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.