Preliminary Findings of Polypropylene Carbonate (PPC) Plastic Film Mulching Effects on the Soil Microbial Community

Jing Liang, Jiafan Zhang, Zongmu Yao, Shouyang Luo, Lei Tian, Chunjie Tian and Yu Sun
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Jing Liang: Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, College of Life Science, The Ministry of Education, Jilin Agricultural University, Changchun 130118, China
Jiafan Zhang: Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, College of Life Science, The Ministry of Education, Jilin Agricultural University, Changchun 130118, China
Zongmu Yao: Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, College of Life Science, The Ministry of Education, Jilin Agricultural University, Changchun 130118, China
Shouyang Luo: Key Laboratory of Straw Comprehensive Utilization and Black Soil Conservation, College of Life Science, The Ministry of Education, Jilin Agricultural University, Changchun 130118, China
Lei Tian: Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
Chunjie Tian: Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
Yu Sun: Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China

Agriculture, 2022, vol. 12, issue 3, 1-13

Abstract: The farmland residual film pollution caused by traditional PE film has an adverse impact on crops and the environment. Polypropylene carbonate (PPC) film is a fully biodegradable film that can alleviate “white pollution”. In this study, the soil physicochemical properties and the composition and function of the soil community of FM (PPC film mulching) and CK (no film) treatments were determined to explore the effect of PPC film mulching on soil and the soil microbial community. Furthermore, the microorganisms at different time periods during the degradation of PPC mulch film were also analyzed. The results showed that film mulching increased soil pH but decreased the contents of EC and SOC, and there was no significant difference in the contents of AP and AK. The relative abundance of the phyla Acidobacteria was increased with film mulching, and the relative abundance of the genera MB_A2_108 also increased in the film mulched soil. Among the soil physicochemical properties, pH and SOC were the most important factors leading to changes in the composition of the bacterial and fungal communities. PPC film mulching had no significant effect on soil microbial community abundance and diversity. In addition, Pseudomonas , Flavobacterium , and Rhizobacter were dominant in the degradation of PPC film. Our research results provide a scientific theoretical basis for soil safety and the large-scale use of PPC biodegradable mulching films and a research foundation for the degradation of PPC plastics.

Keywords: PPC film mulching; soil microbial community; soil organic carbon; soil biological safety (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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