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Method for improving drought resistance of plant growing on tail slag

A tailings slag and drought-resistant technology, applied in the field of ecological restoration materials, can solve problems such as weak water holding capacity, affecting plant growth and seedling survival, and affecting plant fixation and restoration efficiency, achieving slow decay and decomposition, promoting vegetation reconstruction and fixing substrates, The effect of reducing soil erosion

Inactive Publication Date: 2010-06-09
HUNAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, tailings slag has weak water holding capacity, which affects plant growth and seedling survival, thereby affecting the efficiency of plant fixation and restoration

Method used

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  • Method for improving drought resistance of plant growing on tail slag
  • Method for improving drought resistance of plant growing on tail slag
  • Method for improving drought resistance of plant growing on tail slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] From March 2006 to December 2007, a field test was carried out in the decommissioned uranium tailings reservoir area of ​​Hengyang 272 Plant. The selected plant is Trema dielsiana, figure 1 , 2 , 3, 4, bamboo tube 2 diameters are 17cm, two joints in total, and total length is 51cm, and bamboo tube 2 one ends keep intersection spacer, as bottom; The other end saws off nodal spacer, as top. Three apertures 3 are drilled on the interlayer 5 between the two joints, and porous plastic gauze 6 is arranged on this interlayer by top side paving, prevents aperture from clogging, and favorable water circulation. There is no small opening on the side of the joint at the bottom, and it is filled with water 10. In order to facilitate the growth and distribution of plant roots, four small openings 4 with a size of 1.2cm×2cm are opened from top to bottom on the side of the top section of the bamboo tube. The thick river sand 7 of broad bean size 3.5cm is laid on the perforated plas...

Embodiment 2

[0028] From March 2006 to December 2007, a field test was carried out in the decommissioned uranium tailings reservoir area of ​​Hengyang 272 Plant. The selected plant was Pokeweed (Phytolacca americana), figure 1 , 2 , 3, 4, bamboo tube 2 diameters 8cm, two joints in total, total length 40cm, one end retains the joint interval layer, as the bottom; the other end saws off the joint interval layer, as the top. Three apertures 3 are drilled on the interlayer 5 between the two joints, and porous plastic gauze 6 is arranged on this interlayer 5 by top side paving, prevents aperture from clogging, and facilitates water circulation. There is no small opening on the side of the joint at the bottom, and it is filled with water 10. In order to facilitate the growth and distribution of plant roots, three small openings 4 of 1.2cm×2cm are opened from top to bottom on the side of the top section of the bamboo tube. On the perforated plastic gauze 6 that is paved on the top of the bambo...

Embodiment 3

[0030] From March 2006 to December 2007, a field test was carried out in the decommissioned uranium tailings reservoir area of ​​Hengyang 272 Plant. The selected plants were Pokeweed, figure 1 , 2, 3, 4, bamboo tube 2 diameters 12cm, two joints in total, total length 50cm, one end retains the intersection spacer layer, as the bottom end; The other end saws off the joint spacer layer, as the top. Three apertures 3 are drilled on the interlayer 5 between the two joints, and porous plastic gauze 6 is arranged on this interlayer 5 by top side paving, prevents aperture from clogging, and facilitates water circulation. There is no small opening on the side of the joint at the bottom, and it is filled with water 10. In order to facilitate the growth and distribution of plant roots, four small openings 4 of 1.2cm×2cm are opened from top to bottom on the side of the top section of the bamboo tube. On the perforated plastic gauze 6 that is paved on the top of the bamboo tube, pave th...

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Abstract

The invention discloses a method for enhancing the drought resistance of plants on mine tailing slag. The material adopts a Nan bamboo tube, straw scraps, sand, water retention agent, rapeseed expeller, wooden meal, plastic gauze with holes, soil, etc., the Nan bamboo tube is used as a container, natural synusiologic materials such as the soil, the rapeseed expeller, the wooden meal, etc., are used as the substrate for culturing plants, thereby the drought resistance of the plants is increased, and the survival rate of the plants is improved. The method can effectively prevent and control thepollution of the mine tailing slag, has multiple superiorities on economy and technology, and has the advantages of simple operation, practicality and low cost, environment protection, long effect, and wide application prospects.

Description

technical field [0001] The invention relates to the field of ecological restoration materials, in particular to a method for enhancing plant drought resistance in tailings slag pollution ecological restoration. Background technique [0002] The mining of metal mines produces a large amount of tailings slag, and the stockpiling of tailings slag occupies a large area of ​​land. The tailings slag storage area lacks vegetation, poor matrix stability, and severe surface erosion. Heavy metal pollutants seep into the groundwater layer with rainwater during rainfall, and spread with dust during drought. Tailings slag has become an important source of pollution, and the prevention and control of its pollution restoration is an urgent requirement of my country's environmental quality. Due to the large area of ​​tailings slag pollution, it is necessary to find a repair method with low cost, long effect and excellent environmental protection. [0003] Using traditional techniques such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01G9/10
Inventor 向言词冯涛曾荣今刘炳荣彭秀花许爱清
Owner HUNAN UNIV OF SCI & TECH
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