Human activity has increasingly affected recent carbon accumulation in Zhanjiang mangrove wetland, South China.

ABSTRACT: Mangrove wetlands are an important component of blue carbon (C) ecosystems, although the anthropogenic impact on organic C accumulation rate (OCAR) in mangrove wetlands is not yet clear. Three sediment cores were collected from Zhanjiang Gaoqiao Mangrove Reserve in Southern China, dated by ²¹⁰Pb and ¹³⁷Cs, and physico-chemical parameters measured. Results show that the OCARs in mangroves and grasslands have significantly increased by 4.4 and 1.3 times, respectively, since 1950, which is consistent with the transformation of organic C sources and the increase of sedimentation rate. This increment is due to increased soil erosion and nutrient enrichment caused by land use change and the discharge of fertilizer runoff and aquaculture wastewater. This study provides clear

SUBMITTER: Liu T 

PROVIDER: S-EPMC10867414 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature