Advances in researches of the mulch-film degradation and the underlying mechanism

doi:10.13287/j.1001-9332.202102.039

Abstract

Abstract: Mulch-filmaccounted for more than half of plastic film used in Chinese agriculture. The wide utilization of mulch-film brings great economic value but also causes “white pollution”. The residual film is difficult to be recycled and degraded, which directly affects soil regeneration. We introduced the current status of the plastic film usage in China and reviwed the research progress in its degradation. The biological and non-biological pathways and mechanisms of mulch-film degradation were summarized, with particular focus on the polyolefin degradation with synergistic effect of photocatalysis, metal ion doping as well as the impacts of different sources of bacteria and enzymes on the degradation efficiency of polyolefins. The more efficient degradation methods of plastic film are prospected. This review would provide reference for the further studies of plastic film degradation and microplastic degradation.

Key words: agricultural film, polyethylene, biological degradation, non-biological degradation

YONG Jie, CHENG Yi, ZHOU Hai-yan. Advances in researches of the mulch-film degradation and the underlying mechanism[J]. Chinese Journal of Applied Ecology, 2021, 32(2): 729-736.

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