地膜覆盖技术能为农业生产带来增产增收 ,因此这一技术在全国得到了广泛的应用。据统计 ,目前我国农用地膜每年的用量在 3 0万ｔ以上 ,并有逐年增加的趋势。但是持续使用地膜而残膜又得不到很好的回收 ,会给农业生产带来负面影响 ,因此残膜机械化回收是当前迫切需要解决的问题 Film mulching technology can bring about agricultural production yield increase, so this technology has been widely used throughout the country. According to statistics, at present, the amount of agricultural plastic film used in China is more than 300,000 tons per year, and there is a trend of increasing year by year. However, the continuous use of plastic film and the residual film are not well recycled, will have a negative impact on agricultural production, so the residual film mechanization recovery is the urgent problem to be solved