According to data from the National Bureau of Statistics, in 2018, the total amount of agricultural film used in China was 2.465 million tons, including 1.404 million tons of plastic film, covering an area of 266 million acres. In nine provinces and regions including Xinjiang, Shandong, Inner Mongolia, Gansu, Yunnan, Henan, Sichuan, Hebei, and Hunan, the coverage area of agricultural film exceeded 10 million acres.
But if the management of agricultural film is improper, the harm it brings cannot be ignored. The main component of mulching film is polyethylene, which is a macromolecular compound. It is difficult to degrade under natural conditions, which will not only cause environmental pollution, but also damage the soil structure, reduce the soil moisture absorption and permeability, and then affect crop emergence, leading to yield reduction.
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