IGSNRR OpenIR
Carbon and Nitrogen Burial and Response to Climate Change and Anthropogenic Disturbance in Chaohu Lake, China
Yu, Qibiao1,2; Wang, Fang1; Yan, Weijin1; Zhang, Fengsong1; Lv, Shucong1; Li, Yanqiang1
2018-12-01
Source PublicationINTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
ISSN1660-4601
Volume15Issue:12Pages:18
Corresponding AuthorYan, Weijin(yanwj@igsnrr.ac.cn) ; Zhang, Fengsong(zhangfs@igsnrr.ac.cn)
AbstractLakes are a crucial component of the global carbon and nitrogen cycle. As a trend of enhanced human activities and climate change, the mechanisms of burial remain poorly understood. In this study, diverse biogeochemical techniques were applied to analyze the temporal variation of organic carbon and nitrogen burial rates in Chaohu Lake. The results showed that burial rates have ranged from 9.39 to 35.87 g C m(-2) yr(-1) for carbon and from 1.66 to 5.67 g N m(-2) yr(-1) for nitrogen since the 1860s. The average rates were 19.6 g C m(-2) yr(-1) and 3.14 g N m(-2) yr(-1) after the 1970s, which were significantly higher than the rate before the 1970s, showing an increasing trend. The decrease of C/N ratios as well as organic matter C-13 values indicates that the major organic matter source in sediment has been algal production since the 1970s. The increase of N-15 values indicated that the promotion in productivity was stimulated by nutrient input from sewage and agricultural runoff. The burial rates of organic carbon and nitrogen were significantly positively related to socio-economics and temperature, indicating that Chaohu Lake will become an increasing carbon and nitrogen pool under conditions of enhanced human activities and intensive precipitation.
KeywordChaohu Lake carbon and nitrogen burial rate C-13 and N-15 values C N climate change
DOI10.3390/ijerph15122734
WOS KeywordSEDIMENTARY ORGANIC-MATTER ; SEASONAL-VARIATION ; EUTROPHIC LAKE ; TEMPERATURE ; SHALLOW ; SEQUESTRATION ; POLLUTION ; NITRATE ; MINERALIZATION ; GEOCHEMISTRY
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41877483] ; National Key Research and Development Program of China[2016YFA0601004]
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China
WOS Research AreaEnvironmental Sciences & Ecology ; Public, Environmental & Occupational Health
WOS SubjectEnvironmental Sciences ; Public, Environmental & Occupational Health
WOS IDWOS:000456527000125
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/50546
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYan, Weijin; Zhang, Fengsong
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yu, Qibiao,Wang, Fang,Yan, Weijin,et al. Carbon and Nitrogen Burial and Response to Climate Change and Anthropogenic Disturbance in Chaohu Lake, China[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2018,15(12):18.
APA Yu, Qibiao,Wang, Fang,Yan, Weijin,Zhang, Fengsong,Lv, Shucong,&Li, Yanqiang.(2018).Carbon and Nitrogen Burial and Response to Climate Change and Anthropogenic Disturbance in Chaohu Lake, China.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,15(12),18.
MLA Yu, Qibiao,et al."Carbon and Nitrogen Burial and Response to Climate Change and Anthropogenic Disturbance in Chaohu Lake, China".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 15.12(2018):18.
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