近年来,一些连续使用地膜而又不加任何净化措施的农田,由于残留在农田中的残废地膜逐年增多,已经受到了严重污染。由于废残地膜混在土壤表层中的阻隔作用,不仅已直接影响了土壤水分的疏导,防碍了作物对养分的吸收,还造成了土壤生产力 In recent years, some farmlands that have been continuously used mulch without any decontamination measures have been seriously polluted due to the increasing number of mutilated mulch residues in farmland. Due to the obstructing action of the waste film mixed in the soil surface, it not only directly affects the drainage of soil moisture, hinder the crop nutrient absorption, but also causes the soil productivity