Fertilizer and water retention method in treatment of stony desertification

Abstract

The invention discloses a fertilizer and water retention method in treatment of stony desertification. The method comprises the steps that a stony desertification surface is prefilled with a soil layer with a water retaining agent and a nutritional agent, the soil layer is paved with degradable fiber after being compacted, new soil slurry containing a water retaining agent, a cross-linking agent, compound fertilizer, park soil, turfy soil, plant seeds and water is sprayed into the degradable fiber, and the degradable fiber is paved with a geogrid to be fixed, wherein the new soil slurry is composed of, by weight, 3-20 parts of the water retaining agent, 1-12 parts of the cross-linking agent, 1-20 parts of the compound fertilizer, 5-40 parts of the park soil, 5-35 parts of the turfy soil, 1-20 parts of the plant seeds and an appropriate amount of the water. The fertilizer and water retention method can achieve a good effect on treatment of a stony desertification area by being implemented one time, can effectively achieve the effect of water and fertilizer retention and is easy to implement, conditions needed by plant growth are effectively improved, wide stony desert resources in China are effectively utilized, and the stony desert land treatment cost is saved.

Description

technical field [0001] The invention relates to the technical field of soil treatment, in particular to a fertilizer and water conservation method in rocky desertification treatment. Background technique [0002] Stony desertification (Stony Desertification) refers to the destruction of surface vegetation caused by human activities under the natural background of tropical and subtropical humid and semi-humid climate conditions and extremely developed karst, resulting in serious soil loss, large areas of bedrock exposed or The land degradation phenomenon of gravel accumulation is also an extreme form of land degradation in karst areas. In terms of causes, the main factor leading to rocky desertification is human activities. Due to the continuous destruction of natural vegetation for a long time, a large area of ​​steep slopes has been opened up, resulting in the exposed surface. In addition, the soil layer in the karst rocky mountainous area is thin, the bedrock is exposed s...

AI Technical Summary

Problems solved by technology

The hazards of rocky desertification are very serious, mainly manifested in the fact that it directly leads to a substantial reduction or even loss of land carrying capacity, aggravates natural disasters, seriously affects ecological security, leads to aggravation of poverty in rocky desertification areas, and affects sustainable economic and social development; Desertification will lead to simplification of vegetation structure, simplification of ecosystem, leading to a sharp decline in biodiversity, etc.