Impact of long-term conventional and biodegradable film mulching on microplastic abundance, soil structure and organic carbon in a cotton field.

Aggregates C flow Microplastics Organic carbon PBAT film Polyethylene film mulching

Journal

Environmental pollution (Barking, Essex : 1987)
ISSN: 1873-6424
Titre abrégé: Environ Pollut
Pays: England
ID NLM: 8804476

Informations de publication

Date de publication:
12 Jun 2024
Historique:
received: 01 02 2024
revised: 10 06 2024
accepted: 11 06 2024
medline: 15 6 2024
pubmed: 15 6 2024
entrez: 14 6 2024
Statut: aheadofprint

Résumé

Biodegradable film mulching has attracted considerable attention as an alternative to conventional plastic film mulching. However, biodegradable films generate transitory microplastics during the film degradation. How much of this transitory microplastics is being formed and their impact on soil health during long-term use of biodegradable plastic film are not known. Here, we quantified the amounts of microplastics (0.1 to 5 mm in size) in the topsoil (0-20 cm) of two cotton fields with different mulching cultivations: (1) continuous use of conventional (polyethylene, PE) film for 23 years (Plot 1), and (2) 15 years use of conventional film followed by 8 years of biodegradable (polybutylene adipate-co-terephthalate, PBAT) film (Plot 2). We further assessed the impacts of the microplastics on selected soil health parameters, with a focus on soil carbon contents and fluxes. The total amount of microplastics was larger in Plot 2 (8507 particles kg

Identifiants

DOI: 10.1016/j.envpol.2024.124367 PMID: 38876376
pubmed: 38876376
pii: S0269-7491(24)01081-9
doi: 10.1016/j.envpol.2024.124367
pii:
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

124367

Informations de copyright

Copyright © 2024. Published by Elsevier Ltd.

Déclaration de conflit d'intérêts

Declaration of Competing Interest ☒ The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. ☐ The authors declare the following financial interests/personal relationships which may be considered as potential competing interests:

Auteurs

Kai Wang (K)

Research Center for Cultural Landscape Protection and Ecological Restoration, China-Portugal Joint Laboratory of Cultural Heritage Conservation Science supported by the Belt and Road Initiative, Gold Mantis School of Architecture, Soochow University, Suzhou 215006, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.

Wei Min (W)

College of Agriculture, Shihezi University, Shihezi 832061, China.

Markus Flury (M)

Department of Crop and Soil Sciences, Washington State University, Pullman 99164 and Puyallup, WA 98371, United States.

Anna Gunina (A)

Department of Environmental Chemistry, University of Kassel, 37213, Witzenhausen, Germany; Peoples Friendship University of Russia (RUDN University), 117198, Moscow, Russia.

Jun Lv (J)

Shihezi Institute of Agricultural Sciences, Shihezi 832061, China.

Qiang Li (Q)

College of Engineering, Huazhong Agricultural University, Wuhan 430070, China; College of Horticulture & Forestry Science, Huazhong Agricultural University, Wuhan 430070, China.

Rui Jiang (R)

Research Center for Cultural Landscape Protection and Ecological Restoration, China-Portugal Joint Laboratory of Cultural Heritage Conservation Science supported by the Belt and Road Initiative, Gold Mantis School of Architecture, Soochow University, Suzhou 215006, China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China. Electronic address: ruijiang@suda.edu.cn.

Classifications MeSH