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Revegetation method for stony desertification areas of lead-zinc-ore-polluted places in karst regions

A technique of vegetation restoration and lead-zinc mining, applied in the fields of soil preparation, botanical equipment and methods, plant cultivation, etc., can solve the problems of aggravated rocky desertification, unusable land resources, nutrient loss, etc., and achieve a simple and convenient implementation process , The restoration effect is stable and long-lasting, and the effect of protecting the ecological environment

Active Publication Date: 2019-06-04
GUIZHOU ACADEMY OF TESTING & ANALYSIS
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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

Method used

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  • Revegetation method for stony desertification areas of lead-zinc-ore-polluted places in karst regions
  • Revegetation method for stony desertification areas of lead-zinc-ore-polluted places in karst regions
  • Revegetation method for stony desertification areas of lead-zinc-ore-polluted places in karst regions

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] The principle of vegetation recovery in rocky desertification areas polluted by lead-zinc mines in karst areas of the present invention is based on the fact that seeds sprayed in this area and planted plants can survive and grow, and the plant circulation ecosystem is successfully constructed, using a mixture of compound fertilizer, flo...

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Abstract

The invention discloses a revegetation method for stony desertification areas of lead-zinc-ore-polluted places in karst regions. The method includes: cleaning and flattening slopes; using different revegetation methods for slopes of different angles, to be more specific, planting drought-resistant and barren-soil-resistant trees on the slopes smaller than 60 degrees; drilling holes in the slopes larger than 65 degrees and smaller than 85 degrees, knocking expansion hooks into the holes, fixing a slope protecting mesh to the expansion hooks, weaving a plant fiber mesh on the surface of the steel wire mesh, and spreading local mother soil mixed with plant seeds, a water retaining agent, an adhesive, humus and the like to the slope; planting vines on the slopes larger than 85 degrees; performing maintenance management. The method has the advantages that different revegetation methods are used according to different terrain, local dominant plants are mainly used to building a complete plant ecological chain, a high targeting effect is achieved, and the method is simple and convenient to implement, stable and durable in remediation effect, capable of well adapting to the ecological environment of the karst regions, and capable of preventing water and soil loss 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G17/00A01G22/30A01G20/00A01G22/40A01G33/00A01B79/02
CPCY02P60/20Y02A40/22Y02A40/80
Inventor 谢锋杨大应崔姗姗宋光林王艳娇饶书恺
Owner GUIZHOU ACADEMY OF TESTING & ANALYSIS
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