宁夏农林科技2026，Vol.67Issue(8)：8-19,27,13.DOI:10.3969/j.issn.1002-204x.2026.08.002
全生物降解地膜降解特性及应用研究
A Study on Degradation Characteristics and Applications of Fully Biodegradable Mulching Film
摘要
Abstract
To address the soil microplastic pollution caused by the fragmentation and residue of traditional polyethylene(PE)film mulch,the composition of the raw materials for fully biodegradable film mulch,and its degradation patterns and the comprehensive benefits of field application were systematically reviewed,and the application potential of humic acid-modified mulching film was explored.The mainstream biobased polymers and their corresponding additive systems were reviewed,and the multi-factor synergistic degradation mechanism of microorganisms,temperature and humidity,ultraviolet radiation,and material crystallinity was explained.Based on the core literature of Web of Science,CiteSpace was used to analyze the field test data of this mulching film in rice,corn,cotton,wheat,and various vegetables.Fully biodegradable mulching film could completely decompose into harmless small molecules;humic acid-based mulching film had the advantages of nutrient slow-release,soil adjustment,and adjustable degradation cycle;in most scenarios,its effects of heat preservation,moisture retention,weed suppression,and yield increase were similar to those of PE mulching film,which could improve water and fertilizer utilization,increase soil organic matter,reduce greenhouse gas and microplastic risks;in some areas and crop experiments,the yield was slightly lower than that of ordinary mulching film,and there were common shortcomings such as the degradation cycle not matching the crop growth cycle,high production cost of raw materials,and incomplete upstream and downstream industrialization support.Fully biodegradable mulching film is a feasible path to replace traditional film.In the future,the material formula should be optimized,customized mulching film for different crops should be developed,the industrial chain system should be improved,and the promotion of large-scale implementation of multi-functional humic acid-degradable mulching film should be focused on to support the green and sustainable development of agriculture.关键词
地膜回收/聚合物/助剂/降解机理/黄腐酸/生产应用Key words
Mulching film recycling/Polymer/Additive/Degradation mechanism/Humic acid/Application in Production分类
农业科技引用本文复制引用
王佩杰,张小转,刘家磊..全生物降解地膜降解特性及应用研究[J].宁夏农林科技,2026,67(8):8-19,27,13.基金项目
中国农业科学院重大科技任务(CAAS-ZDRW20260403). （CAAS-ZDRW20260403）
