Effects of polypropylene microplastics on carbon dioxide dynamics in intertidal mangrove sediments
文献类型： 外文期刊
作者： Lin, Xubing 1 ; Lin, Shuying 1 ; Peng, Licheng 1 ; Chen, Miao 3 ; Cheng, Xing 1 ; Xie, Shiyu 1 ; Bao, Ruiqi 1 ; Su, Yuanyuan 1 ; Mehmood, Tariq 1 ;
作者机构： 1.Hainan Univ, Ctr Ecoenvironm Restorat Engn Hainan Prov, Key Lab Agroforestry Environm Proc & Ecol Regulat, Haikou 570228, Peoples R China
2.Hainan Univ, Sch Ecol & Environm, Haikou 570228, Hainan, Peoples R China
3.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Hainan Key Lab Trop Ecocircular Agr, Haikou 571101, Peoples R China
关键词： Microplastics; Micro -sized polypropylene (mPP); Mangrove intertidal zone; CO 2 emissions; Microbial compositions
期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：8.9； 五年影响因子：9.5 ）
ISSN： 0269-7491
年卷期： 2024 年 346 卷
页码：
收录情况： SCI
摘要： Microplastics (MPs) in soil can influence CO2 dynamics by altering organic carbon (OC) and microbial composition. Nevertheless, the fluctuation of CO2 response attributed to MPs in mangrove sediments is unclear. This study explores the impact of micro-sized polypropylene (mPP) particles on the carbon dynamics of intertidal mangrove sediments. In the high-tide level sediment, after 28 days, the cumulative CO2 levels for varying mPP dosages were as follows: 496.86 +/- 2.07, 430.38 +/- 3.84 and 447.09 +/- 1.72 mg kg(-1) for 0.1%, 1% and 10% (w/w) mPP, respectively. The CO2 emissions were found to be increased with a 0.1% (w/w) mPP level and decreased with 1% and 10% (w/w) mPP at high-tide level sediment, suggesting a tide level-specific dose dependence of the CO2 emission pattern in mangrove sediments. Overall, results indicated that the presence of mPP in mangrove sediments would potentially affect intertidal total CO2 storage under given experimental conditions.
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