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通过对目前应用的４种类型薄膜物理性状与特性的分析，阐述了在玉米地膜覆盖栽培中对膜的透明度、厚度、宽度等选择原则。并对目前处于试验、示范阶段的几种降解膜的使用效果进行了介绍，试验表明，多数降解膜降解不彻底，易对土壤产生污染。为此，提出选用非降解膜应及时清膜，减少环境污染；对降解膜的进一步推广应用应持积极而慎重的态度。
Through the analysis of the physical properties and characteristics of the four types of films currently used, the principles of transparency, thickness and width of the film in maize mulching are expounded. The effects of using several degradable membranes in the experimental and demonstration stages are introduced. The results show that most degradable membranes are not completely degraded and are prone to soil pollution. To this end, the proposed selection of non-degradable membrane should be timely Qing Membrane, reducing environmental pollution; degradation of the film to further promote the use of a positive and cautious attitude.