Carbon and Nitrogen Burial and Response to Climate Change and Anthropogenic Disturbance in Chaohu Lake, China

doi:10.3390/ijerph15122734

	Carbon and Nitrogen Burial and Response to Climate Change and Anthropogenic Disturbance in Chaohu Lake, China
	Yu, Qibiao 1,2; Wang, Fang 1; Yan, Weijin 1; Zhang, Fengsong 1; Lv, Shucong 1; Li, Yanqiang 1
刊名	INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
	2018-12-01
卷号	15 期号:12 页码:18
关键词	Chaohu Lake carbon and nitrogen burial rate C-13 and N-15 values C N climate change
ISSN号	1660-4601
DOI	10.3390/ijerph15122734
通讯作者	Yan, Weijin(yanwj@igsnrr.ac.cn) ; Zhang, Fengsong(zhangfs@igsnrr.ac.cn)
英文摘要	Lakes 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.
资助项目	National Natural Science Foundation of China[41877483] ; National Key Research and Development Program of China[2016YFA0601004]
WOS关键词	SEDIMENTARY ORGANIC-MATTER ; SEASONAL-VARIATION ; EUTROPHIC LAKE ; TEMPERATURE ; SHALLOW ; SEQUESTRATION ; POLLUTION ; NITRATE ; MINERALIZATION ; GEOCHEMISTRY
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
语种	英语
出版者	MDPI
WOS记录号	WOS:000456527000125
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/50545]
专题	中国科学院地理科学与资源研究所
通讯作者	Yan, Weijin; Zhang, Fengsong
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 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.