可生物降解农用地膜研究现状及发展

Research Status and Development of Biodegradable Agricultural Film

地膜是继种子、农药、化肥之后的第四大农业生产资料。我国作为最大的农膜消费国,传统农膜的主要成分是不可降解聚乙烯PE,农膜残留对各地土壤造成了不同程度的污染。生物降解农用地膜具有原材料丰富、成本低、理化性能良好、环境友好等特点。综述了可生物降解农用地膜的种类及其应用效果,重点介绍生物可降解纸地膜、塑料地膜与可喷涂地膜的研究,并提出生物降解农用地膜的发展前景。

Plastic film is the fourth agricultural production materials following seed,pesticide and chemical fertilizer.China is the largest consuming country of agricultural film.The main component of traditional agricultural film is nondegradable polyethylene PE,and the residue of agricultural film has caused different degrees of soil pollution.Biodegradable agricultural film has the characteristics of abundant raw materials,low cost,good physical and chemical properties,and environmental friendliness.The types and application effects of biodegradable agricultural film were reviewed.It was focused on the research of biodegradable paper mulching film,plastic mulching film and sprayable mulching film,and the development prospect of biodegradable agricultural film was put forward.