Distribution and factors influencing organic and inorganic carbon in surface sediments of tidal flats in northern Jiangsu, China

Large amounts of organic carbon (OC) and inorganic carbon (IC) are stored in coastal sediments. These carbon compounds play an important role in coping with global climate change. In this study, the surface sediments of four tidal flat sections in northern Jiangsu were analysed for their OC and IC c...

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Autores principales: Peipei Yang, Qiang Shu, Qing Liu, Zhou Hu, Shunjie Zhang, Yanyu Ma
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Lenguaje:EN
Publicado: Elsevier 2021
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spelling oai:doaj.org-article:2799758e6fe14844bb799c6bb098453f2021-12-01T04:49:56ZDistribution and factors influencing organic and inorganic carbon in surface sediments of tidal flats in northern Jiangsu, China1470-160X10.1016/j.ecolind.2021.107633https://doaj.org/article/2799758e6fe14844bb799c6bb098453f2021-07-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21002983https://doaj.org/toc/1470-160XLarge amounts of organic carbon (OC) and inorganic carbon (IC) are stored in coastal sediments. These carbon compounds play an important role in coping with global climate change. In this study, the surface sediments of four tidal flat sections in northern Jiangsu were analysed for their OC and IC contents, as well as changes in the physical and chemical properties of the sediments (particle size, pH, salinity (SAL), and N, P, and S contents). A partial least squares regression (PLSR) was conducted to explore the factors affecting OC and IC variations. According to the results, the OC and IC contents exhibited increasing trends when moving from the seaward to landward parts of the sections. The OC variations were large and IC variations were small in all four sections and the vegetation coverage contributes to the carbon content of tidal flat sediments. The PLSR analysis indicates that the main factors influencing OC and IC contents in the tidal flat system were particle size (sand, silt, and clay) and N content, while SAL had the least influence on OC and IC contents. The IC and OC contents are positively coupled, which may indicate that the nearshore vegetation has a greater contribution to OC, affects the coastal hydrodynamic conditions, and enhances the retention of IC. Additionally, the transformation of OC to IC also positively contributed to the coupling of their contents.Peipei YangQiang ShuQing LiuZhou HuShunjie ZhangYanyu MaElsevierarticleTidal flat sedimentOrganic and inorganic carbonInfluencing factorsPLSRNorthern JiangsuVegetation coverageEcologyQH540-549.5ENEcological Indicators, Vol 126, Iss , Pp 107633- (2021)
institution DOAJ
collection DOAJ
language EN
topic Tidal flat sediment
Organic and inorganic carbon
Influencing factors
PLSR
Northern Jiangsu
Vegetation coverage
Ecology
QH540-549.5
spellingShingle Tidal flat sediment
Organic and inorganic carbon
Influencing factors
PLSR
Northern Jiangsu
Vegetation coverage
Ecology
QH540-549.5
Peipei Yang
Qiang Shu
Qing Liu
Zhou Hu
Shunjie Zhang
Yanyu Ma
Distribution and factors influencing organic and inorganic carbon in surface sediments of tidal flats in northern Jiangsu, China
description Large amounts of organic carbon (OC) and inorganic carbon (IC) are stored in coastal sediments. These carbon compounds play an important role in coping with global climate change. In this study, the surface sediments of four tidal flat sections in northern Jiangsu were analysed for their OC and IC contents, as well as changes in the physical and chemical properties of the sediments (particle size, pH, salinity (SAL), and N, P, and S contents). A partial least squares regression (PLSR) was conducted to explore the factors affecting OC and IC variations. According to the results, the OC and IC contents exhibited increasing trends when moving from the seaward to landward parts of the sections. The OC variations were large and IC variations were small in all four sections and the vegetation coverage contributes to the carbon content of tidal flat sediments. The PLSR analysis indicates that the main factors influencing OC and IC contents in the tidal flat system were particle size (sand, silt, and clay) and N content, while SAL had the least influence on OC and IC contents. The IC and OC contents are positively coupled, which may indicate that the nearshore vegetation has a greater contribution to OC, affects the coastal hydrodynamic conditions, and enhances the retention of IC. Additionally, the transformation of OC to IC also positively contributed to the coupling of their contents.
format article
author Peipei Yang
Qiang Shu
Qing Liu
Zhou Hu
Shunjie Zhang
Yanyu Ma
author_facet Peipei Yang
Qiang Shu
Qing Liu
Zhou Hu
Shunjie Zhang
Yanyu Ma
author_sort Peipei Yang
title Distribution and factors influencing organic and inorganic carbon in surface sediments of tidal flats in northern Jiangsu, China
title_short Distribution and factors influencing organic and inorganic carbon in surface sediments of tidal flats in northern Jiangsu, China
title_full Distribution and factors influencing organic and inorganic carbon in surface sediments of tidal flats in northern Jiangsu, China
title_fullStr Distribution and factors influencing organic and inorganic carbon in surface sediments of tidal flats in northern Jiangsu, China
title_full_unstemmed Distribution and factors influencing organic and inorganic carbon in surface sediments of tidal flats in northern Jiangsu, China
title_sort distribution and factors influencing organic and inorganic carbon in surface sediments of tidal flats in northern jiangsu, china
publisher Elsevier
publishDate 2021
url https://doaj.org/article/2799758e6fe14844bb799c6bb098453f
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