Limestone mining area ecological restoration method

An ecological restoration and limestone technology, applied in land preparation methods, fertilizer mixtures, leguminous plant cultivation, etc., can solve problems affecting crop growth and surrounding ecological environment, deterioration of surrounding soil physical and chemical properties, soil alkalization and fertility decline, etc. Good ecological benefits, improved stress and pest resistance, simple implementation

Active Publication Date: 2018-01-09
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For open-pit limestone mining areas and abandoned mines, the surface soil in the area is stripped, and the surface rocks are exposed, polluting the surrounding air environment and soil environment under the action of weathering and rainwater, resulting in deterioration of the physical and chemical properties of the surrounding soil, resulting in soil alkalization and Fertility decline, affecting the growth of crops and the surrounding ecological environment
[0003] At present, the existing repair method of lim

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A method for ecological restoration of a limestone mining area, said method comprising processing base materials in the mining area and establishing an ecological restoration layer;

[0057] Described base material processing comprises the steps:

[0058] A. Excavate 40cm of limestone slag on the surface of the exposed Shanxi mining area, plow it, and degrade it through natural and sufficient leaching and exposure to the sun for 3 months;

[0059] B. Fully mix the naturally degraded limestone slag with organic fertilizers and chemical fertilizers, and maintain for 4 weeks;

[0060] C. Fully mix the preserved limestone slag with loam and ecological fertilizer in proportion;

[0061] The establishment of the ecological restoration layer includes the following steps:

[0062] D. Stir the planting layer evenly and evenly cover the surface of the base material, with a thickness of 8cm;

[0063] E, adopt sowing method to implant lavender and alfalfa seeds into the planting...

Embodiment 2

[0075] A method for ecological restoration of a limestone mining area, said method comprising processing base materials in the mining area and establishing an ecological restoration layer;

[0076] Described base material processing comprises the steps:

[0077] A. Excavate 20cm of limestone slag on the surface of the exposed Shanxi mining area, plow it, and degrade it through natural and sufficient leaching and exposure to the sun for 2.5 months;

[0078] B. Fully mix the naturally degraded limestone slag with organic fertilizers and chemical fertilizers, and maintain for 5 weeks;

[0079] C. Fully mix the preserved limestone slag with loam and ecological fertilizer in proportion;

[0080] The establishment of the ecological restoration layer includes the following steps:

[0081] D. Stir the planting layer evenly and evenly cover the surface of the base material, with a thickness of 7cm;

[0082] E, adopt sowing method to implant lavender and alfalfa seeds into the planti...

Embodiment 3

[0094] A method for ecological restoration of a limestone mining area, said method comprising processing base materials in the mining area and establishing an ecological restoration layer;

[0095] Described base material processing comprises the steps:

[0096] A. Excavate 30cm of limestone slag on the surface of the exposed Shanxi mining area, plow it, and degrade it through natural and sufficient leaching and exposure to the sun for 2 months;

[0097] B. Fully mix the naturally degraded limestone slag with organic fertilizers and chemical fertilizers, and maintain for 3 weeks;

[0098] C. Fully mix the preserved limestone slag with loam and ecological fertilizer in proportion;

[0099] The establishment of the ecological restoration layer includes the following steps:

[0100] D. Stir the planting layer evenly and evenly cover the surface of the base material, with a thickness of 5cm;

[0101] E, adopt sowing method to implant lavender and alfalfa seeds into the planting l...

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Abstract

The invention relates to the field of mining area ecological restoration, in particular to a limestone mining area ecological restoration method. The method includes the steps of mining area base material treatment and ecological restoration layer building. According to the method, limestone mining area slag is used as a main base material which is supplemented by a little loam, an ecological organic fertilizer and a mycorrhizal fungus inoculant to provide stable nutrient supply for germination and growth of plants, so that a material guarantee is provided for mining area ecological restoration; clover is drought-resistant and alkali-resistant and can be used as a nitrogen-fixing plant for soil improvement at the same time, lavender is used as an ecological restoration plant, which not only restores the ecological environment of a limestone mining area, but can be an ornamental and commercial crop to bring added values, and with collaborative planting of the clover and the lavender, not only can the ecological environment of the limestone mining area be improved, but the soil quality of the area can be improved, so that continuous restoration of the ecological environment of the mining area is guaranteed.

Description

technical field [0001] The invention relates to the field of ecological restoration of mining areas, in particular to a method for ecological restoration of limestone mining areas. Background technique [0002] At present, my country's cement industry is taking the road of new industrialization, vigorously developing new dry-process cement, and the demand for limestone resources has surged. For open-pit limestone mining areas and abandoned mines, the surface soil in the area is stripped, and the surface rocks are exposed, polluting the surrounding air environment and soil environment under the action of weathering and rainwater, resulting in deterioration of the physical and chemical properties of the surrounding soil, resulting in soil alkalization and Fertility decline affects the growth of crops and the surrounding ecological environment. [0003] At present, the existing repair method of limestone mining area is mainly foreign soil covering, which requires a large amoun...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G22/40C05G3/04C05G3/80
Inventor 董静韩建超周爱娟张聪岳秀萍
Owner TAIYUAN UNIV OF TECH
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