Factors affecting distribution patterns of organic carbon in sediments at regional and national scales in China

Abstract Wetlands are an important carbon reservoir pool in terrestrial ecosystems. Light fraction organic carbon (LFOC), heavy fraction organic carbon (HFOC), and dissolved organic carbon (DOC) were fractionated in sediment samples from the four wetlands (ZR: Zhaoniu River; ZRCW: Zhaoniu River Cons...

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Autores principales:	Qingqing Cao, Hui Wang, Yiran Zhang, Rattan Lal, Renqing Wang, Xiuli Ge, Jian Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/77c198f629c643e8828563f82d0cdfa1
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spelling	oai:doaj.org-article:77c198f629c643e8828563f82d0cdfa12021-12-02T16:06:01ZFactors affecting distribution patterns of organic carbon in sediments at regional and national scales in China10.1038/s41598-017-06035-z2045-2322https://doaj.org/article/77c198f629c643e8828563f82d0cdfa12017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06035-zhttps://doaj.org/toc/2045-2322Abstract Wetlands are an important carbon reservoir pool in terrestrial ecosystems. Light fraction organic carbon (LFOC), heavy fraction organic carbon (HFOC), and dissolved organic carbon (DOC) were fractionated in sediment samples from the four wetlands (ZR: Zhaoniu River; ZRCW: Zhaoniu River Constructed Wetland; XR: Xinxue River; XRCW: Xinxue River Constructed Wetland). Organic carbon (OC) from rivers and coasts of China were retrieved and statistically analyzed. At regional scale, HFOC stably dominates the deposition of OC (95.4%), whereas DOC and LFOC in ZR is significantly higher than in ZRCW. Concentration of DOC is significantly higher in XRCW (30.37 mg/l) than that in XR (13.59 mg/l). DOC and HFOC notably distinguish between two sampling campaigns, and the deposition of carbon fractions are limited by low nitrogen input. At the national scale, OC attains the maximum of 2.29% at precipitation of 800 mm. OC has no significant difference among the three climate zones but significantly higher in river sediments than in coasts. Coastal OC increases from Bohai Sea (0.52%) to South Sea (0.70%) with a decrease in latitude. This study summarizes the factors affecting organic carbon storage in regional and national scale, and have constructive implications for carbon assessment, modelling, and management.Qingqing CaoHui WangYiran ZhangRattan LalRenqing WangXiuli GeJian LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Qingqing Cao Hui Wang Yiran Zhang Rattan Lal Renqing Wang Xiuli Ge Jian Liu Factors affecting distribution patterns of organic carbon in sediments at regional and national scales in China
description	Abstract Wetlands are an important carbon reservoir pool in terrestrial ecosystems. Light fraction organic carbon (LFOC), heavy fraction organic carbon (HFOC), and dissolved organic carbon (DOC) were fractionated in sediment samples from the four wetlands (ZR: Zhaoniu River; ZRCW: Zhaoniu River Constructed Wetland; XR: Xinxue River; XRCW: Xinxue River Constructed Wetland). Organic carbon (OC) from rivers and coasts of China were retrieved and statistically analyzed. At regional scale, HFOC stably dominates the deposition of OC (95.4%), whereas DOC and LFOC in ZR is significantly higher than in ZRCW. Concentration of DOC is significantly higher in XRCW (30.37 mg/l) than that in XR (13.59 mg/l). DOC and HFOC notably distinguish between two sampling campaigns, and the deposition of carbon fractions are limited by low nitrogen input. At the national scale, OC attains the maximum of 2.29% at precipitation of 800 mm. OC has no significant difference among the three climate zones but significantly higher in river sediments than in coasts. Coastal OC increases from Bohai Sea (0.52%) to South Sea (0.70%) with a decrease in latitude. This study summarizes the factors affecting organic carbon storage in regional and national scale, and have constructive implications for carbon assessment, modelling, and management.
format	article
author	Qingqing Cao Hui Wang Yiran Zhang Rattan Lal Renqing Wang Xiuli Ge Jian Liu
author_facet	Qingqing Cao Hui Wang Yiran Zhang Rattan Lal Renqing Wang Xiuli Ge Jian Liu
author_sort	Qingqing Cao
title	Factors affecting distribution patterns of organic carbon in sediments at regional and national scales in China
title_short	Factors affecting distribution patterns of organic carbon in sediments at regional and national scales in China
title_full	Factors affecting distribution patterns of organic carbon in sediments at regional and national scales in China
title_fullStr	Factors affecting distribution patterns of organic carbon in sediments at regional and national scales in China
title_full_unstemmed	Factors affecting distribution patterns of organic carbon in sediments at regional and national scales in China
title_sort	factors affecting distribution patterns of organic carbon in sediments at regional and national scales in china
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/77c198f629c643e8828563f82d0cdfa1
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_version_	1718385155952869376

Factors affecting distribution patterns of organic carbon in sediments at regional and national scales in China

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