| Title: | Effects of plastic mulch film residues on wheat rhizosphere and soil properties |
| Author(s): | Qi Y; Ossowicki A; Yang X; Huerta Lwanga E; Dini-Andreote F; Geissen V; Garbeva P; |
| Address: | "Soil Physics and Land Management Group, Wageningen University & Research, P.O. Box 47, 6700AA Wageningen, the Netherlands; Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6700 AB Wageningen, the Netherlands. Electronic address: yueling.qi@wur.nl. Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6700 AB Wageningen, the Netherlands. Soil Physics and Land Management Group, Wageningen University & Research, P.O. Box 47, 6700AA Wageningen, the Netherlands; College of Natural Resources and Environment, Northwest A&F University, 712100 Yangling, China. Soil Physics and Land Management Group, Wageningen University & Research, P.O. Box 47, 6700AA Wageningen, the Netherlands; Agroecologia, El Colegio de la Frontera Sur, Unidad Campeche, Campeche, Mexico. Department of Microbial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), 6700 AB Wageningen, the Netherlands; Department of Plant Science, The Pennsylvania State University, University Park, PA, USA; Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA, USA. Soil Physics and Land Management Group, Wageningen University & Research, P.O. Box 47, 6700AA Wageningen, the Netherlands" |
| DOI: | 10.1016/j.jhazmat.2019.121711 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| Abstract: | "Plastic residues could accumulate in soils as a consequence of using plastic mulching, which results in a serious environmental concern for agroecosystems. As an alternative, biodegradable plastic films stand as promising products to minimize plastic debris accumulation and reduce soil pollution. However, the effects of residues from traditional and biodegradable plastic films on the soil-plant system are not well studied. In this study, we used a controlled pot experiment to investigate the effects of macro- and micro- sized residues of low-density polyethylene and biodegradable plastic mulch films on the rhizosphere bacterial communities, rhizosphere volatile profiles and soil chemical properties. Interestingly, we identified significant effects of biodegradable plastic residues on the rhizosphere bacterial communities and on the blend of volatiles emitted in the rhizosphere. For example, in treatments with biodegradable plastics, bacteria genera like Bacillus and Variovorax were present in higher relative abundances and volatile compounds like dodecanal were exclusively produced in treatment with biodegradable microplastics. Furthermore, significant differences in soil pH, electrical conductivity and C:N ratio were observed across treatments. Our study provides evidence for both biotic and abiotic impacts of plastic residues on the soil-plant system, suggesting the urgent need for more research examining their environmental impacts on agroecosystems" |
| Keywords: | Bacteria/drug effects Biodegradable Plastics/*pharmacology Biomass Microplastics/*pharmacology Polyethylene/*pharmacology *Rhizosphere Soil/chemistry Soil Pollutants/*pharmacology Triticum/*drug effects Volatile Organic Compounds/metabolism Biodegradable; |
| Notes: | "MedlineQi, Yueling Ossowicki, Adam Yang, Xiaomei Huerta Lwanga, Esperanza Dini-Andreote, Francisco Geissen, Violette Garbeva, Paolina eng Research Support, Non-U.S. Gov't Netherlands 2019/12/07 J Hazard Mater. 2020 Apr 5; 387:121711. doi: 10.1016/j.jhazmat.2019.121711. Epub 2019 Nov 17" |
