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  2. 烟台海岸带研究所
  3. 中国科学院烟台海岸带研究所
  4. 中科院海岸带环境过程与生态修复重点实验室
Cordgrass invasion amplifies microplastic hazard through polymer-selective retention in coastal wetlands

文献类型：期刊论文

作者Su, Feizhou2; He, Xiaotong2; Jin, Zhan2; Xiao, Kai1; Tian, Peng2; Xiao, Derong2
刊名WATER RESEARCH
出版日期2026-05-15
卷号296页码:10
关键词Biological invasion Polymer hazard Coastal wetlands Microplastic pollution
ISSN号0043-1354
DOI10.1016/j.watres.2026.125667
通讯作者Tian, Peng(20240053@wzu.edu.cn) ; Xiao, Derong(xiaoderong1@163.com)
英文摘要Coastal wetlands are key repositories and pathways for microplastics (MPs), a role modulated by vegetation. The global spread of the nonnative cordgrass Spartina alterniflora is thus likely to alter MP deposition and fate, yet its effects on MP accumulation and related ecological risks are not well quantified. Integrating field surveys along an 18,000-km latitudinal transect (similar to 20 degrees) of China's coastline with an ensemble of three machine-learning models, we produced a 500 m-resolution map of the MP polymer hazard index (PHI) in sediments (0-40 cm depth) and compared MP stocks and risks among native marshes, S. alterniflora-invaded marshes, and unvegetated mudflats. While MP abundance did not differ significantly between native and invaded marshes, PHI in invaded marshes was 20.0 % higher than in native marshes and 57.1 % higher than in mudflats, indicating a shift toward more hazardous polymers. This shift led to a marked expansion of high-risk coverage (increasing by 26.8 % compared with native marshes and 386.1 % relative to mudflats). Climatic variables (mean annual temperature and precipitation) emerged as dominant predictors of PHI across habitats, while plant invasion further accentuated habitat-specific effects mediated via microbial mediation. These results demonstrate that plant invasion amplifies coastal plastic pollution risk through both enhanced retention and selective accumulation of more hazardous polymers, underscoring the need to incorporate invasion control into coastal MP management strategies.
WOS关键词SPARTINA-ALTERNIFLORA ; SALT-MARSH ; MAINLAND ; CHINA ; BAY
WOS研究方向Engineering ; Environmental Sciences & Ecology ; Water Resources
语种英语
WOS记录号WOS:001709477600001
资助机构The Pioneer and Leading Goose R&D Program of Zhejiang ; National Natural Science Foundation of China
源URL[http://ir.yic.ac.cn/handle/133337/42246]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Tian, Peng; Xiao, Derong
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China
2.Wenzhou Univ, Coll Life & Environm Sci, State & Local Joint Engn Res Ctr Ecol Treatment Te, Wenzhou 325035, Zhejiang, Peoples R China
推荐引用方式
GB/T 7714		 Su, Feizhou,He, Xiaotong,Jin, Zhan,et al. Cordgrass invasion amplifies microplastic hazard through polymer-selective retention in coastal wetlands[J]. WATER RESEARCH,2026,296:10.
APA Su, Feizhou,He, Xiaotong,Jin, Zhan,Xiao, Kai,Tian, Peng,&Xiao, Derong.(2026).Cordgrass invasion amplifies microplastic hazard through polymer-selective retention in coastal wetlands.WATER RESEARCH,296,10.
MLA Su, Feizhou,et al."Cordgrass invasion amplifies microplastic hazard through polymer-selective retention in coastal wetlands".WATER RESEARCH 296(2026):10.

入库方式： OAI收割

来源：烟台海岸带研究所

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