| Title | Un-biodegradable and biodegradable plastic sheets modify the soil properties after six months since their applications |
| Publication Type | Journal Article |
| Year of Publication | 2022 |
| Authors | Santini G., Acconcia S., Napoletano M., Memoli V., Santorufo L., Maisto G. |
| Journal | Environmental Pollution |
| Volume | 308 |
| Pagination | 119608 |
| Date Published | 2022/09/01/ |
| ISBN Number | 0269-7491 |
| Keywords | enzymatic activities, Phytotoxicity, respiration, Soil abiotic properties |
| Abstract | Nowadays, microplastics represent emergent pollutants in terrestrial ecosystems that exert impacts on soil properties, affecting key soil ecological functions. In agroecosystems, plastic mulching is one of the main sources of plastic residues in soils. The present research aimed to evaluate the effects of two types of plastic sheets (un-biodegradable and biodegradable) on soil abiotic (pH, water content, concentrations of organic and total carbon, and total nitrogen) and biotic (respiration, and activities of hydrolase, dehydrogenase, β-glucosidase and urease) properties, and on phytotoxicity (germination index of Sorghum saccharatum L. and Lepidium sativum L.). Results revealed that soil properties were mostly affected by exposure time to plastics rather than the kind (un-biodegradable and biodegradable) of plastics. After six months since mesocosm setting up, the presence of un-biodegradable plastic sheets significantly decreased soil pH, respiration and dehydrogenase activity and increased total and organic carbon concentrations, and toxicity highlighted by S. saccharatum L. Instead, the presence of biodegradable plastic sheets significantly decreased dehydrogenase activity and increased organic carbon concentrations. An overall temporal improvement of the investigated properties in soils covered by biodegradable plastic sheets occurred.
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