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Determining nitrogen and carbon footprints to reveal regional gross primary productivity and differentiation characteristics in karst and non-karst watersheds, China
Hao, Zhuo1,3; Gao, Yang1,2,3; Sun, Xiaomin1,3; Wen, Xuefa1,3; Xiong, Bailian4
2019-08-01
Source PublicationJOURNAL OF CLEANER PRODUCTION
ISSN0959-6526
Volume227Pages:1149-1160
Corresponding AuthorGao, Yang(gaoyang@igsnrr.ac.cn)
AbstractThis study revealed the difference of regional gross primary productivity (GPP) in two different geomorphic provinces. We used delta C-13, delta N-15, and delta O-18 to trace carbon (C) and nitrogen (N) footprints in two different watersheds in China and analyzed differences in regional economic development. The total dissolved total nitrogen (DTN) and dissolved carbon (DC) deposition fluxes were 16.93 kg N.hm(-2).yr(-1) and 27.67 kg C.hm(-2).yr(-1) in the Chenqi watershed (karst) and 43.88 kg N.hm(-2).yr(-1) and 49.15 kgC.hm(-2).yr(-1) in the Xiangxi watershed (non-karst), respectively. Rainwater was more enriched in delta C-13 in the Xiangxi watershed (-14.4 parts per thousand +/- 1.89 parts per thousand) than in the Chenqi watershed (-8.54 +/- 3.87 parts per thousand). In addition, DTN efflux was 244.22 and 941.61 kg N.hm(-2).yr(-1) and efflux of DC was 4157.86 and 9129.22 kg C.hm(-2).yr(-1) in surface water and groundwater in Chenqi watershed. And DTN efflux was 413.68 kg N.hm(-2).yr(-1) and DC was 2846.05 kg C.hm(-2).yr(-1) in Xiangxi watershed. Nitrate nitrogen (NO3--N) and dissolved inorganic carbon (DIC) were the main forms of DTN and DC, respectively in both watersheds (both >84%). Carbonate reaction and groundwater were the main sources in the Chenqi watershed (contribution rates >30%), while atmospheric deposition and soil water were the main sources in the Xiangxi watershed (contribution rates are >22% and >28%, respectively). Using C and N footprints, we speculated that the direct causes of economic disparity in the two watersheds were nutrients lost with soil erosion which limited vegetation growth. Therefore, it is necessary to plant the suitable vegetation rationally. This study also provides a scientific basis for economic development and ecological environment coordinated sustainable development. (C) 2019 Elsevier Ltd. All rights reserved.
KeywordC footprint N footprint GPP C storage N storage Karst
DOI10.1016/j.jclepro.2019.04.278
WOS KeywordDISSOLVED INORGANIC CARBON ; NITRATE CONTAMINATION ; STABLE-ISOTOPES ; CO2 EMISSION ; GROUNDWATER ; INSIGHTS ; AQUIFER ; CLIMATE ; RIVER ; COVARIATION
Indexed BySCI
Language英语
Funding ProjectNational Nature Science Foundation of China[41871080] ; National Nature Science Foundation of China[41842036] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
Funding OrganizationNational Nature Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS Research AreaScience & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
WOS SubjectGreen & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000470939600098
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/58974
Collection中国科学院地理科学与资源研究所
Corresponding AuthorGao, Yang
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
4.Zunyi Normal Coll, Coll Resources & Environm, Zunyi, Guizhou, Peoples R China
Recommended Citation
GB/T 7714
Hao, Zhuo,Gao, Yang,Sun, Xiaomin,et al. Determining nitrogen and carbon footprints to reveal regional gross primary productivity and differentiation characteristics in karst and non-karst watersheds, China[J]. JOURNAL OF CLEANER PRODUCTION,2019,227:1149-1160.
APA Hao, Zhuo,Gao, Yang,Sun, Xiaomin,Wen, Xuefa,&Xiong, Bailian.(2019).Determining nitrogen and carbon footprints to reveal regional gross primary productivity and differentiation characteristics in karst and non-karst watersheds, China.JOURNAL OF CLEANER PRODUCTION,227,1149-1160.
MLA Hao, Zhuo,et al."Determining nitrogen and carbon footprints to reveal regional gross primary productivity and differentiation characteristics in karst and non-karst watersheds, China".JOURNAL OF CLEANER PRODUCTION 227(2019):1149-1160.
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