Distribution Characteristics and Main Influencing Factors of Organic Carbon in Sediments of Spartina Alterniflora Wetlands along the Northern Jiangsu Coast, China

Aijuan Zhang, Wenlong Lv, Qiang Shu (), Zhiling Chen, Yifan Du, Hui Ye, Linlu Xu and Shengzhi Liu
Additional contact information
Aijuan Zhang: School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
Wenlong Lv: School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
Qiang Shu: School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
Zhiling Chen: School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
Yifan Du: School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
Hui Ye: School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
Linlu Xu: School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
Shengzhi Liu: School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China

Land, 2024, vol. 13, issue 6, 1-16

Abstract: In this study, columnar sediment samples were collected from north to south along the northern Jiangsu coast, China, under Spartina alterniflora vegetation in four sample areas: Chuandong Port (Area-1), Tiaozini Scenic Area (Area-2), Yangkou Town (Area-3), and Meiledi Marine Park (Area-4). Organic carbon (OC), nutrient elements including total nitrogen (TN), total phosphorus (TP), and total sulfur (TS), and physicochemical properties including pH, salinity (Sal), moisture content (MC), and bulk density (BD) were measured. Pearson’s correlation analysis was performed to explore the correlation between OC content and sedimentary physicochemical indexes, and the partial least squares regression (PLSR) model was used to analyze the factors affecting changes in OC content. The results found that the OC content of columnar sediments of S. alterniflora decreased with increasing depth in all four areas. The OC content in the four sample areas was mainly affected by the TN, pH, MC, TP, and burial depth. In particular, TN, MC, TP, TS, and clay content positively affected OC, whereas burial depth, pH, silt content, BD, sand content, and Sal negatively affected OC. The results of this study provide a valuable reference for evaluating the role of coastal wetlands in the global carbon cycle.

Keywords: Spartina alterniflora wetlands; sediments; organic carbon; partial least squares regression; influencing factors; northern Jiangsu coast (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2073-445X/13/6/741/pdf (application/pdf)
https://www.mdpi.com/2073-445X/13/6/741/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jlands:v:13:y:2024:i:6:p:741-:d:1401724

Access Statistics for this article

Land is currently edited by Ms. Carol Ma

More articles in Land from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().