A method for vegetation recovery in rocky desertification areas polluted by lead-zinc mines in karst areas

Abstract

The invention discloses a method for implementing vegetation recovery in rocky desertification areas polluted by lead-zinc mines in karst areas. It includes the following steps: cleaning and leveling the slope; using different restoration methods for slopes with different angles: planting trees with drought-resistant and barren soil on slopes less than 60 degrees; afforestation on slopes above 65 degrees and below 85 degrees hole and punch in the expansion hook, and fix the slope protection net on the expansion hook; weave the plant fiber net on the surface of the barbed wire; spray the local mother soil mixed with plant seeds, water retaining agent, adhesive, humus, etc. on the On slopes; on slopes greater than 85 degrees, vines are used for planting seedlings and afforestation; maintenance and management. The implementation method of vegetation restoration in rocky desertification areas of the present invention adopts different restoration methods according to different terrains, mainly adopts local dominant plants, builds a complete plant ecological chain, is highly targeted, simple and convenient in implementation process, and has stable and long-lasting restoration effects , can better adapt to the ecological environment of the karst area, and achieve the effect of preventing soil erosion and protecting the ecological environment.

Description

technical field [0001] The invention relates to a method for implementing vegetation recovery in rocky desertification areas polluted by lead-zinc mines in karst areas. Background technique [0002] The geological background of the karst area in Southwest my country is unique. The long-term strong chemical dissolution of carbonate rocks has produced a surface-underground double-layer space structure. The soil layer is shallow and discontinuous, with strong heterogeneity. The interference of human activities including farming activities Destroy the fragile ecology of the karst area, leading to rocky desertification in the area. On the whole, rocky desertification is the unreasonable social and economic activities of human beings in the fragile karst ecological environment, resulting in prominent contradictions between man and land, destruction of vegetation, soil erosion, gradual exposure of rocks, loss of land productivity, and the surface visually appears similar to evoluti...

AI Technical Summary

Problems solved by technology

Soil erosion reduces soil fertility and nutrient loss, thereby degrading soil and vegetation, and ultimately making land resources unusable and aggravating rocky desertification

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