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随着农业现代化的不断发展,地膜覆盖是一项成熟的农业栽培技术,可以起到保水保肥、保持湿度,有效地增加和延长作物生长期,显著提高农作物产量的作用。使用地膜已成为确保农业高产稳产的重要手段。但是随着地膜覆盖栽培年限的延长,残留地膜回收率低,土壤中残膜量逐年增加,极易造成地膜污染。残留地膜若得不到及时回收,必然对农业可持续发展构成严重威胁。
With the continuous development of agricultural modernization, plastic film mulching is a mature agricultural cultivation technology that can play a role of keeping water and fertilizer, maintaining humidity, effectively increasing and extending the crop growth period, and significantly increasing the crop yield. The use of plastic film has become an important means of ensuring high and stable agriculture. However, with the extension of mulching cultivation years, the residual mulching rate is low and the amount of residual mulch film in soil increases year by year, which can easily cause mulching. If the residual film can not be recovered in time, it will inevitably pose a serious threat to the sustainable development of agriculture.