文献类型：期刊文献

英文题名：Human activities altered the enrichment patterns of microplastics in mangrove blue carbon ecosystem in the semi-enclosed Zhanjiang Bay, China

作者：Zhang, Peng[1,2];Zhao, Wei[1];Zhang, Jibiao[1];Gao, Yeqin[1];Wang, Shujia[1];Jian, Qiying[1]

机构：[1]Guangdong Ocean Univ, Coll Chem & Environm Sci, Zhanjiang, Guangdong, Peoples R China;[2]Guangdong Ocean Univ, Res Ctr Coastal Environm Protect & Ecol Resilience, Zhanjiang, Guangdong, Peoples R China

年份：2024

卷号：11

外文期刊名：FRONTIERS IN MARINE SCIENCE

收录：SCI-EXPANDED(收录号：WOS:001207307500001)、、Scopus(收录号：2-s2.0-85191082103)、WOS

基金：The author(s) declare financial support was received for the research, authorship, and/or publication of this article. We gratefully acknowledge the Guangdong Basic and Applied Basic Research Foundation (2023A1515012769), Guangdong Basic and Applied Basic Research Foundation (2020A1515110483), Research and Development Projects in Key Areas of Guangdong Province (2020B1111020004), Guangdong Ocean University Fund Project (R18021); Science and Technology Special Project of Zhanjiang City (2019B01081); Innovation Strong School Project (230420021) of Guangdong Ocean University, and Province College Student Innovation and Entrepreneurship Plan (S202210566007) for funding.

语种：英文

外文关键词：microplastics; mangrove; human activities; Zhanjiang Bay; sediment

外文摘要：Mangroves, as the key blue carbon ecosystem, are considered 'potential sinks' for microplastics (MPs) in the land-ocean interface zones. However, there is limited understanding of enrichment patterns of MPs in mangrove blue carbon ecosystem, particularly in relation to human activities. This study explored the abundance, composition, and diversity of MPs in mangrove and non-mangrove sediments in Zhanjiang Bay (ZJB) to investigate the effects of human activities on MPs enrichment patterns in the blue carbon system. The results showed that MPs were widely prevalent in all sediment samples, and the abundance of MPs was significantly higher in all mangrove sediments than in non-mangrove sediments (P < 0.05). Furthermore, the average abundance of MPs was found to be 263.67 +/- 85.25 items/kg in non-mangrove sediment samples, whereas in mangrove sediment samples, it was 618.17 +/- 71.75 items/kg. The average abundance of MPs in mangroves was about 1.6 times higher than that in non-mangroves, indicating that mangroves have an interception effect on MPs, and human activities are the key factor leading to the difference in MPs enrichment patterns between mangroves and non-mangroves. Furthermore, the predominant MPs shapes in both mangroves and non-mangroves are fragments, with multicolor and green being the most common colors and most MPs sizes ranging between 100 and 330 m. Besides, there was no significant relationship found between MPs abundance and particulate organic carbon (P > 0.05), indicating that MPs pollution didn't significantly alter the natural POC pool in ZJB. Overall, this study provided important baseline information on MPs pollution in the mangrove blue carbon ecosystems in ZJB, which was implications for future mitigation of MPs pollution and the management of mangrove ecosystem.