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Ecological management method suitable for strip mine dump in grassland area

A technology for ecological management and soil dumping, which is applied in the pressure spreading method of liquid fertilizer, soil preparation method, chemical instrument and method, etc., can solve the problems of easily causing sandstorms, haze, soil erosion, etc. Easy to operate, strong ability to adapt to the environment, avoid sandstorm and haze effect

Inactive Publication Date: 2021-12-10
SHENHUA BAORIXILE ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an ecological treatment method suitable for open-pit mine dumps in grassland areas, aiming to solve the technical problems of water and soil loss, sandstorms and smog that exist in existing open-pit mine dumps in grassland areas

Method used

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  • Ecological management method suitable for strip mine dump in grassland area
  • Ecological management method suitable for strip mine dump in grassland area

Examples

Experimental program
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Effect test

Embodiment 1

[0047] (11) Screening of target plants: screen the plant species that grow naturally within 40 kilometers of the outer dump site of the Shengli No. 1 Open-pit Coal Mine in Xilin Gol Grassland, Inner Mongolia. Plants with a plant growth rate of more than 50% after 1 year of age are plants that are more than 50%. Alkaline grass.

[0048] (12) Soil improvement: apply soil improvement matrix (the composition of soil improvement matrix is ​​power plant fly ash, bentonite, sewage sludge, peat, and power plant pulverized coal Ash, bentonite, sewage sludge, peat mass ratio is 1:0.5:0.8:1.5), and the volume ratio between the added soil improvement matrix and the soil to be improved is 1:5, and the soil The pH was adjusted to 6.5.

[0049] (13) Establishment of irrigation system: build an anti-seepage storage tank at the low water level on the surface of the dump, install a water pump at the bottom of the anti-seepage storage tank and connect the dark irrigation pipe and the open irrig...

Embodiment 2

[0052] (21) Screening of target plants: Screen the plant species that grow naturally within 60 kilometers from the dump site of Shengli West No. 2 Open-pit Coal Mine in Shengli Mining Area, Inner Mongolia. The plants with a residual plant rate greater than 50% after one year of plant growth are Caragana .

[0053] (22) Soil improvement: apply soil improvement matrix (the composition of the soil improvement matrix is ​​sewage sludge, peat, straw, domestic garbage, farmyard manure, sewage sludge) in the surface soil layer soil of the dump site (the depth is 40 cm). , peat, straw, household garbage, and farmyard manure are 1:1:0.3:0.8:1.8), the volume ratio between the added soil improvement substrate and the soil to be improved is 1:7, and The pH of the soil was adjusted to 7.5.

[0054] (23) Establishment of irrigation system: build an anti-seepage storage tank at the low water level on the surface of the dump, install a water pump at the bottom of the anti-seepage storage tan...

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Abstract

The invention belongs to the technical field of ecological management, and particularly relates to an ecological management method suitable for a strip mine dump in a grassland area. In the ecological management method provided by the invention, proper target plants are screened and planted on the strip mine dump in the grassland area, meanwhile, the soil matrix of the strip mine dump in the grassland area is improved and ripened and is subjected to pH regulation, and through cooperation of the irrigation and fertilization of an irrigation system, sufficient nutrients can be provided for good growth of the target plants on the strip mine dump in the grassland area, and soil can be efficiently modified in the process of building the ecological system of the strip mine dump in the grassland area. The ecological management method provided by the invention is simple and easy to implement, is a method specially suitable for the strip mine dump in the grassland area, and can be used for carrying out reasonable and effective ecological management on the strip mine dump, so that the phenomena of water and soil loss and dust raising are avoided, and the occurrence of sand storm and haze is further avoided.

Description

technical field [0001] The invention relates to the technical field of ecological management, in particular to an ecological management method suitable for open dumps in grassland areas. Background technique [0002] The development of coal resources in grassland areas will cause varying degrees of damage to the local grasslands and seriously threaten ecological security. Among them, open-pit mines have serious damage and pollution to the ecological environment. In addition to the destruction of surface vegetation by excavation of stopes, a large area of ​​land was occupied by external dumps before the start of internal drainage. If the dump site does not carry out reasonable ecological management, water and soil loss will occur, and dust will also appear, and further accompanied by strong winds, it will also cause sandstorms and smog. [0003] Therefore, it is necessary to study the ecological management methods suitable for open-pit mine dumps in grassland areas according...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02A01B79/00A01G17/00A01G22/00A01C23/04C09K17/08C09K17/40C09K109/00
CPCA01B79/02A01B79/00A01G17/005A01G22/00A01C23/042C09K17/08C09K17/40C09K2109/00Y02P60/20
Inventor 黄玉凯李浩荡丁震刘忠全崔杰崔高恩马忠辉
Owner SHENHUA BAORIXILE ENERGY CO LTD
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