Vegetation recovery method for soil discharging field in acidic mining area

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

Active Publication Date: 2018-09-18
SOUTH CHINA AGRI UNIV
View PDF6 Cites 6 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 meth

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
  • Vegetation recovery method for soil discharging field in acidic mining area
  • Vegetation recovery method for soil discharging field in acidic mining area
  • Vegetation recovery method for soil discharging field in acidic mining area

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0036] Example 1:

[0037] 1Materials and methods

[0038] 1.1 Test materials

[0039] 1.1.1 Pioneer plants for testing

[0040] The test plants were selected as pioneers of soil and water conservation plants such as reed (LL), quince (WJM), vetiver (XGC) and masson pine (MWS). The quince was collected from the Dabaoshan mining area, and the test vetiver was collected from The ecological experiment base of South China Agricultural University, the masson pine for testing was purchased from the seedling company. Before the start of the experiment, the five-section awn, vetiver, and masson pine were cultured in sand for 30 days in the net room to eliminate the influence of the original growth environment.

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

[0042] 1.1...

Example Embodiment

[0087] Example 2:

[0088] 1Materials and methods

[0089] 1.1 Test materials

[0090] 1.1.1 Pioneer plants for testing

[0091] The test plants were selected as the pioneer plants of soil and water conservation, reeds and argentata. The test plant A. reede was cultivated with seeds. The reed seed was collected from the wild reed of the South China Agricultural University. The seedlings of the reed plant were cultivated by the substrate culture method, and plants of the same size and growth were selected for use. The five-section mango was collected from the Dabaoshan mining area. Before the experiment, the five-section mango was cultivated in the net room for 30 days to eliminate the influence of the original growth environment.

[0092] 1.1.2 Test soil

[0093] The test acid spoil samples were collected at the Dabaoshan Dumping Site, with a collection depth of 0-30cm (surface soil depth). The collected samples are a mixture of soil, parent material, waste rock, etc., for the conveni...

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

No PUM 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
IPC IPC(8): A01G22/00C05G3/04C05G3/80
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