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Microorganism-plant combined remediation method suitable for open pit coal mine waste dump

An open-pit coal mine and joint restoration technology, applied in the field of microbial-plant joint restoration, can solve the problems of large damage to the original landform on the surface, unfavorable vegetation growth, and poor fertility, so as to promote soil improvement and plant growth, increase plant diversity, and prevent The effect of secondary damage

Pending Publication Date: 2021-06-29
SHENHUA BEIDIAN SHENGLI ENERGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with underground mining, open-pit mining has obvious advantages such as safety, but the mining and dumping process of this coal mining process greatly damages the original landform of the surface. The soil structure and fertility of the dump site formed by the stripping of the topsoil are not conducive to vegetation. growth, resulting in ecological imbalance

Method used

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  • Microorganism-plant combined remediation method suitable for open pit coal mine waste dump
  • Microorganism-plant combined remediation method suitable for open pit coal mine waste dump
  • Microorganism-plant combined remediation method suitable for open pit coal mine waste dump

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Experimental program
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Effect test

Embodiment 1

[0027] Description of test conditions

[0028] The test site is located in Xilinhot Mengshenhua Beidian Shengli Open-pit Mine (115°18′-117°06′E, 43°02′-44°52′N), Xilinhot City, Inner Mongolia, in the middle and west of Shengli Coalfield, 6km away from Xilinhot City, The average length from east to west is 6.84km, the average width from north to south is 5.43km, and the area is 37.14km 2 . The climate of the mining area is a semi-arid continental monsoon climate in the middle temperate zone, with an annual average temperature of 0-3°C, a freezing period of up to 5 months, and a cold period of up to 7 months. The temperature in January is the lowest, with an average of -19°C, which is the coldest in North China. one of the regions. July has the highest temperature, with an average of 21°C and an extreme maximum temperature of 39°C. Xilinhot does not have much precipitation, with an average annual precipitation of less than 300 mm, and most of the rainfall is concentrated in t...

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Abstract

The invention discloses a microorganism-plant combined remediation method suitable for an open pit coal mine waste dump. The method comprises the following steps: mixing grass seeds of leguminous plants and gramineous plants according to a sowing rate of 1:(1-2) to obtain a grass seed mixture, and sowing the grass seed mixture in the open pit coal mine waste dump from May to June. According to the method disclosed by the invention, the diversity of plants can be improved, soil improvement and plant growth can be promoted, secondary damage to the soil of the dump can be prevented under the condition that no exogenous chemical fertilizer is added, and the stability of an ecological system can be enhanced.

Description

technical field [0001] The invention belongs to the field of agricultural planting, and relates to a microorganism-plant joint restoration method suitable for open-pit coal mine dumps. Background technique [0002] While coal mining has brought huge benefits to my country's economic development, it has also led to frequent occurrence of various ecological problems, causing certain damage to the land and the ecological environment. Compared with underground mining, open-pit mining has obvious advantages such as safety, but the mining and dumping process of this coal mining process greatly damages the original landform of the surface. The soil structure and fertility of the dump site formed by the stripping of the topsoil are not conducive to vegetation. growth, resulting in ecological imbalance. In recent years, ecological restoration and sustainable development of the environment in mining areas have become a hot issue of social concern. [0003] Microbial remediation tech...

Claims

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Application Information

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IPC IPC(8): A01G22/40A01G22/20A01B79/02C09K17/14
CPCA01G22/40A01G22/20A01B79/02C09K17/14
Inventor 佘长超孙那斌毕银丽王党朝解琳琳胡钦程张延旭
Owner SHENHUA BEIDIAN SHENGLI ENERGY
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