A kind of vegetation recovery method of dump site in acid mine area

A technique for vegetation restoration and dumping, applied in botany equipment and methods, plant cultivation, superphosphate, etc., can solve problems such as not having much value for promotion and application, no improvement agent given, and insufficient source of foreign soil, etc. Achieve the effects of improving fertilizer use efficiency and fertilizer release speed, improving soil quality, and soil restoration

Active Publication Date: 2021-03-26
SOUTH CHINA AGRI UNIV
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, soil improvement in acidic mining areas needs to eliminate the above limiting factors at the same time, which is difficult
[0004] The soil improvement method in the process of vegetation restoration in the existing acid mine dumps is the highest success rate of the foreign soil method. Although the improvement effect is good, it requires a large amount of foreign soil sources and a large amount of engineering. Most mining areas are located in mountainous areas. Insufficient and poor transportation conditions, so the guest soil method is not suitable for soil improvement of most mine dumps
The in-situ improvement method is a method that has been continuously explored and optimized in vegetation restoration projects in mining areas. It has the advantages of small engineering volume, low investment, and quick implementation. However, the soil properties of mine dumps vary greatly in time and space, so the soil improvement method that only gives the specific amount of amendments has a very large limitation in use, and there is no great limitation. Promote application value

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of vegetation recovery method of dump site in acid mine area
  • A kind of vegetation recovery method of dump site in acid mine area
  • A kind of vegetation recovery method of dump site in acid mine area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1 Materials and methods

[0038] 1.1 Test materials

[0039] 1.1.1 Pioneer plants tested

[0040] Pioneering plants for soil and water conservation such as reed reed (LL), acanthus chinensis (WJM), vetiver (XGC) and masson pine (MWS) were selected as the test plants. South China Agricultural University Ecological Experiment Base, masson pine was purchased from a nursery stock company. Before the start of the experiment, the five-joint grass, vetiver, and masson pine were sand cultured in the net room for 30 days to eliminate the influence of the original growth environment before use.

[0041] The test plants were cultivated with seeds, and the seeds were collected from the wild plants in South China Agricultural University. The seedlings of the plants were cultivated by the matrix culture method, and the plants with the same size and growth were selected for future use.

[0042] 1.1.2 Test soil

[0043] The acid spoil samples for testing were collected from the Dab...

Embodiment 2

[0087] 1 Materials and methods

[0088] 1.1 Test materials

[0089] 1.1.1 Pioneer plants tested

[0090] For the test plants, the pioneer plants of water and soil conservation were reeds and five-jointed awns. The test plants were cultivated with seeds, and the seeds were collected from the wild plants in South China Agricultural University. The seedlings of the plants were cultivated by the matrix culture method, and the plants with the same size and growth were selected for future use. The awns were collected from the Dabaoshan mining area. Before the experiment started, the awns were cultivated in sand for 30 days in a net room to eliminate the influence of the original growth environment before use.

[0091] 1.1.2 Test soil

[0092] The acid spoil samples for testing were collected from the Dabaoshan dump at a depth of 0-30cm (surface soil depth). The collected samples are a mixture of soil, parent material and waste rock, etc., for the convenience of expression, they ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
lengthaaaaaaaaaa
depthaaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical fields of land reclamation, ecological reconstruction and soil and water conservation and discloses a vegetation recovery method for a soil discharging field inan acidic mining area. The method includes the following steps of S1, adjusting the pH of soil, wherein a neutralizing agent is applied to topsoil of the acidic waste soil of the soil discharging field, the pH of the soil is less than 4, uniform stirring is conducted until the pH of the soil is 5.0-7.5, and the thickness of the topsoil is greater than 25 cm; S2, applying a nutrient supplement agent, wherein nitrogen fertilizer and phosphate fertilizer are applied to the topsoil in step S1 and stirred uniformly; S3, applying an organic material, wherein the organic material is applied to the topsoil and stirred uniformly after step S2 is completed to obtain improved soil with the soil conductivity of 2.5 ms cm<1> or below, and the organic material is plant straw powder or livestock manure;S4, planting pioneer plants on a soil improved layer in S3, wherein the pioneer plants can grow normally on the improved soil. By adopting an improvement method of cooperatively applying limestone powder, the organic material and the inorganic fertilizer, the cost is low, and the improvement effect is good.

Description

technical field [0001] The invention relates to the technical fields of land reclamation, ecological reconstruction and soil and water conservation, in particular to a method for restoring vegetation in acid mining area dumps. Background technique [0002] According to statistics, every 1 ton of ore mined in my country's mines will produce 0.52 tons of tailings, 0.04 tons of smelting waste residue and 0.42 tons of waste rock, of which only 0.02 tons are usable. Mining waste is one of the key factors of environmental pollution in mining areas. The discarded soil stripped during mining is piled up in the dump, often due to the mixing of tailings and waste rocks during the mining process, it becomes the source of water and soil erosion in the mining area and excessive heavy metals in the downstream river section. Vegetation restoration is the most fundamental way to completely solve such problems. However, in the acid mining area, a large amount of acid is produced after the s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/00C05G3/80
CPCA01G22/00C05B1/02C05G3/80C05B13/02C05C9/00C05F3/00C05F11/00
Inventor 郭彦彪肖雪冯宏赵兰凤
Owner SOUTH CHINA AGRI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap