Methods of Vegetation Restoration in Coal Mine Areas in Arid Areas

A technology for vegetation restoration and arid areas, applied in the field of vegetation restoration in coal mining areas in arid areas, can solve the problems of difficult vegetation growth, achieve the effects of increasing plant nutrients, facilitating plant growth, and improving plant growth and survival rates

Active Publication Date: 2022-02-11
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a method for vegetation recovery in coal mining areas in arid areas, so as to solve the problem that vegetation growth in such areas is difficult to grow

Method used

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  • Methods of Vegetation Restoration in Coal Mine Areas in Arid Areas
  • Methods of Vegetation Restoration in Coal Mine Areas in Arid Areas
  • Methods of Vegetation Restoration in Coal Mine Areas in Arid Areas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A coal mining area in Hami City has a typical continental climate, with an annual average temperature of 9.8°C, an extreme maximum temperature of 43°C, an extreme surface temperature of 65°C, and an extreme minimum temperature of -32°C; the annual precipitation is 33.8mm, and the annual evaporation is 3300mm. The average sunshine is 3358 hours, and the frost-free period is 182 days. Strong winds and sandstorms occur frequently, and the instantaneous wind force can reach level 11.

[0037] According to the understanding of the composition of the soil profile in the mining area, there is a salt crust at about 30 cm of the soil layer. Therefore, this embodiment mainly focuses on the reconstruction of the 0-30 cm soil layer, and excavates the 0-30 cm soil layer on the surface.

[0038] In this example, desert soil was used as a control, and three treatment methods were set: desert + fly ash, desert soil + sludge, desert soil + fly ash + sludge, and 9 kinds of plants were pl...

Embodiment 2

[0055] This example is located at the same location as Example 1, both in a certain mining area in Hami. After the rock-covering treatment was carried out on the basis of the ratio of each treatment group in Example 1, 9 kinds of plants were planted at each treatment group.

[0056] (1) Planting soil preparation for planting in mining areas: raw materials are obtained locally,

[0057] Treatment method 1: Desert soil and fly ash are mixed evenly in proportions of 100:25, 100:10, and 100:5 respectively;

[0058] Treatment method 2: Desert and sludge are mixed evenly in the ratio of 100:2 and 100:1 respectively;

[0059] Treatment method 3: Desert soil, fly ash and domestic sludge are mixed evenly in the ratio of 100:20:2 and 100:10:1 respectively.

[0060] (2) How to use the planting soil: Backfill the uniformly mixed planting soil to the original place, and level the soil surface.

[0061] (3) Choose a fire stone with a diameter of 8-15cm to cover the flat planting soil surf...

Embodiment 3

[0075] A mining area in Wucaiwan has a mid-temperate continental arid climate, with short spring and autumn seasons, long winter and summer seasons, and a large temperature difference between day and night. The annual average temperature is 7.3°C, the annual average precipitation is 194mm, the annual average sunshine is 2775 hours, and the frost-free period is 105-168 days. The average temperature of the warmest July and August is 25.7°C, and the coldest January is -15.2°C. The extreme high temperature in summer can reach more than 40 degrees. The extreme low temperature in winter can reach below -40 degrees.

[0076] According to the understanding of the composition of the soil profile in the mining area, there is a salt crust at about 30 cm of the soil layer. Therefore, this embodiment mainly focuses on the reconstruction of the 0-30 cm soil layer, and excavates the 0-30 cm soil layer on the surface.

[0077] In this embodiment, desert soil is used as a contrast, and three...

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Abstract

The invention provides a method for restoring vegetation in arid coal mining areas. The method includes: mixing and preparing desert soil and domestic sludge according to a weight ratio of 50-100:0-2 to obtain planting soil; placing the planting soil on the land in the area to be restored to obtain the area to be planted; planting in the area to be planted plant. The inherent resources of desert soil in coal mining areas can meet the needs of plant growth to a certain extent. If it cannot meet the needs of plant growth, domestic sludge can be added to it. The planting soil formed in this way can greatly increase the content of nutrients such as nitrogen and phosphorus. Increase the plant nutrients in the mixed soil, which is beneficial to plant growth. Planting plants on the land of the area to be restored covered with the above-mentioned improved planting soil can improve the growth and survival rate of plants.

Description

technical field [0001] The invention relates to the technical field of soil and planting, in particular to a method for restoring vegetation in arid coal mining areas. Background technique [0002] Mineral resources are the necessary material basis for human civilization. With the development of industrial and agricultural production and the improvement of human spiritual and material living standards, the society's demand for mineral resources is increasing day by day. The development and utilization of coal resources, while greatly promoting the economic development of mining areas, also brings pollution to the ecological environment, produces various pollutants, causes air, water, and soil pollution, and destroys the natural environment. And bring direct and indirect, short-term or long-term adverse effects to the ecological environment and human health. The solid wastes generated during the mining, processing and use of coal resources mainly include coal gangue, coal s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/00A01G22/40A01B79/02A01G24/10A01G24/20
CPCA01G22/00A01G22/40A01B79/02A01G24/10A01G24/20
Inventor 王梦李超李阳王文全李昊宇麻浩马俊杰
Owner CHNA ENERGY INVESTMENT CORP LTD
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