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Method for researching structure and function recovery rule of soil in open pit coal mine dumping site

A soil structure, open-pit coal mine technology, applied in the preparation of test samples, soil material testing, and material analysis by observing the impact on chemical indicators, etc. problem, to achieve the effect of natural recovery, simple and easy to implement

Pending Publication Date: 2022-07-08
SHENHUA BEIDIAN SHENGLI ENERGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the passage of time, there are still problems such as plant community degradation, poor plant growth, and soil barren degradation in some areas of ecological restoration of dump sites. can form a matching fitness model

Method used

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  • Method for researching structure and function recovery rule of soil in open pit coal mine dumping site
  • Method for researching structure and function recovery rule of soil in open pit coal mine dumping site
  • Method for researching structure and function recovery rule of soil in open pit coal mine dumping site

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] For Shenbao Energy Group Opencast Mine Dump Site Opencast Coal Mine Dump Site:

[0044] The time of soil dumping on the west-facing slope was 2016, and the ecological restoration was carried out that year. The elevation of the platform at the top of the slope is 711m, and there are 9 steps in total. The spacing between adjacent steps is 5m. The length is 3.5km, and the bottom of the long slope at the lower edge of the bottom step is 4.3km long; the method includes the following steps:

[0045] (1) Five transects are set at intervals along the lateral direction of the west-facing slope surface, and the five transects are respectively set along the slope direction of the west-facing slope surface, and the spacing between adjacent transects is 15m;

[0046](2) On each sample belt, sample points are respectively set on the slope where step 1, step 3, step 5, step 7 and step 9 are located;

[0047] (3) For each sample point, two soil quadrats are set up on the slope, in the...

Embodiment 2

[0064] It differs from Example 1 only in that:

[0065] For Shenbao Energy Group Opencast Mine Dump Site Opencast Coal Mine Dump Site:

[0066] The slope surface of the south-facing slope reached the boundary in 2013, and the ecological restoration was carried out that year. The elevation of the platform at the top of the slope is 693m, and there are 7 steps in total. The spacing between adjacent steps is 5m. The length of the bottom step is 1.6km, and the bottom of the long slope at the lower edge of the bottom step is 2.7km long;

[0067] In step (1), three transects are set at intervals along the lateral direction of the south-facing slope surface, and the three transects are respectively set along the slope direction of the south-facing slope surface, and the spacing between adjacent transects is 15m. .

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Abstract

The method for researching the soil structure and function recovery rule in the open pit coal mine waste dump comprises the following steps: (1) arranging a sample belt on a side slope in at least one of the east, west, south and north directions of the waste dump along the gradient direction of the slope surface; the multiple sample belts are arranged in the transverse direction of the corresponding slope face at intervals. (2) arranging a plurality of sampling points at intervals along the sample belt on a side slope in at least one of the east, west, south and north directions of the waste dump; (3) sequentially dividing the slope surface where each sampling point is located into an upper slope, a middle slope and a lower slope along the slope direction; in each sampling point, two soil sample squares are randomly arranged above the slope, in the middle of the slope and below the slope respectively; and (4) collecting the soil of each soil quadrat as a soil sample, and testing the soil index of the soil sample. The method is simple and easy to implement, the soil structure and function recovery rule in the open pit coal mine waste dump can be researched, guidance is provided for artificial ecological restoration engineering in the open pit coal mine waste dump, and natural restoration of an ecological system is guided through artificial restoration.

Description

technical field [0001] The invention belongs to the field of ecological restoration, and in particular relates to a method for studying soil structure and function restoration laws in open-pit coal mine dumps. Background technique [0002] my country is a country with coal as the main energy source, and the coal-based energy system will remain for a long time. Therefore, the clean and efficient utilization of coal is a major issue in the field of energy and environment in my country. Dump site refers to the accumulation of loose materials such as rock and topsoil formed by the accumulation of waste discharged during coal mining. Most of the dumps formed by coal mining are stepped structures with platforms and slopes that are tens to more than 100 meters above the ground. Poor permeability, extremely low soil pore water and organic matter content, and high salinization degree are not conducive to plant growth, seriously damage the regional ecological environment, and threate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01N5/04G01N9/02G01N15/08G01N21/78G01N27/26G01N1/28
CPCG01N33/24G01N5/045G01N9/02G01N15/08G01N21/78G01N27/26G01N1/28G01N1/286G01N2009/022G01N2001/2866
Inventor 尚志王党朝肖兵于志成李永昶王科张萌佘长超
Owner SHENHUA BEIDIAN SHENGLI ENERGY
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