Stony desertification preventing system and preventing method thereof

Abstract

The invention provides a stony desertification preventing system and a preventing method thereof. The system comprises protective devices and fertilizer slow-release blocks, wherein the protective devices comprise protective screens and fixing rings, the protective screens are flexible screens, the protective screens are quadrangular, and four corners of each protective screen are connected with the corresponding fixing rings respectively; the fixing rings are rigid rings, the fixing rings comprise inner rings and outer rings, each inner ring is in a shape of a cylinder with two open ends, theinner rings are sleeved with the outer rings, the outer rings are in shapes of circular rings, inner walls of the outer rings are connected with outer walls of the inner rings, and a plurality of connection holes to which each protective screen is fixed are preserved in the corresponding outer ring; the fertilizer slow-release blocks are arranged on inner cavities of the inner rings, the fertilizer slow-release blocks comprise biodegradable plastics and fertilizer, and the fertilizer is wrapped in the biodegradable plastics. According to the stony desertification preventing system and the preventing method thereof, through the protective screens and the fixing rings, planting gaps for planting lawn and seedlings are defined so that the soil fertility and soil holding force of preventing soil stony desertification by means of planting can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a rocky desertification prevention system and a prevention method thereof. Background technique [0002] Rocky desertification, also known as stony desertification, is the loss of surface soil due to soil erosion, which in turn exposes the bedrock beneath the surface. The land in the rocky desertification area loses its agricultural use value, and also leads to the degradation of the ecological environment in the area, which is not conducive to the survival of animals and plants. Due to the thin soil layer in karst rocky mountainous areas, rocky desertification mostly occurs in karst rocky mountainous areas. The strong scouring force of heavy rain in mountainous areas will intensify the speed of water and soil erosion, resulting in rocky desertification. [0003] The control of rocky desertification is centered on the comprehensive control of water and soil loss,...

AI Technical Summary

Problems solved by technology

[0003] The control of rocky desertification is centered on the comprehensive control of water and soil loss, and should be adapted to local conditions in the principle of water and soil conservation. The existing control measures include closing hills for afforestation, afforestation on barren hills, and returning farmland to forests. However, due to the relatively thin soil in rocky desertification areas, the soil Insufficient fertility, easy to lose, and poor control over plants, making the process of rocky desertification more difficult

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