What are the hazards of agricultural film pollution in farmland soil?

The hazards of agricultural film pollution in farmland soil are:

(1) The agricultural film will destroy the soil structure of the cultivated layer, reduce the soil gap and reduce the air permeability and water permeability of the soil.

(2) The activities of microorganisms and soil animals are restricted, which is not conducive to the transmission of water and nutrients in the soil, affects the absorption of water and nutrients by crops, hinders the germination, emergence and root growth of crops, and ultimately leads to crop yield reduction.

Because agricultural plastic film is a kind of agricultural plastic product which is difficult to decompose, if the residual plastic film in farmland is not recycled in time, it will cause serious environmental pollution. Ultra-thin plastic film below 0.0 12mm is widely used in production, which is low in cost, easy to break and difficult to recycle. With the increase of plastic film cultivation years, the amount of residual film in soil is increasing, which hinders the infiltration of soil capillary water and natural water, affects soil hygroscopicity, and hinders water movement, thus destroying soil structure, reducing fertility level, hindering crop growth and development, and even causing groundwater infiltration and soil secondary salinization, which eventually leads to a large-scale yield reduction.