Method for governing gobi by utilizing modified sand

A technology for modifying sand and Gobi, applied in the field of governance and utilization of Gobi land resources, can solve the problems of environmental degradation, road burial, etc., and achieve significant economic effects

Active Publication Date: 2013-10-16
易志坚 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the movement of Gobi sand and rocks has caused a series of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Embodiment one: comprise the following steps:

[0067] a. Prepare modified sand body:

[0068] a1. Polyvinyl alcohol is selected as the solid organic substance soluble in water;

[0069] Stir polyvinyl alcohol and water according to the weight ratio of 5:100 to form a solution;

[0070] a2. Take 1000kg of sand body, and then take 200kg of solution formed by dissolving polyvinyl alcohol in water, add the solution to the sand body, then mix and stir evenly to form a modified sand body; polyvinyl alcohol and sand in the modified sand body The weight ratio of the body is 1:105.0;

[0071] b. Spread the modified sand body on the simulated Gobi surface with gravel and alkaline sand body (the soil content is more than the general sand body) with a certain area. The thickness of the paving is about 10cm. Under the climate conditions in spring in Chongqing area, the evaporation is relatively small. Part of the modified sand body was taken, and measures such as drying were ta...

Embodiment 2

[0074] Embodiment two: comprise the following steps:

[0075] a. Prepare modified sand body:

[0076] a1. The solid organic substance that can dissolve in water is selected from hydroxypropyl methylcellulose;

[0077] Stir hydroxypropyl methylcellulose and water according to the weight ratio of 0.2:100 to form a solution;

[0078] a2. Take 1000kg of sand body, and then take 190kg of hydroxypropyl methylcellulose solution, mix the sand body with the solution and stir evenly to form a modified sand body, and the substance hydroxypropyl methylcellulose in the modified sand body and The weight ratio of the sand body is 1:2637;

[0079] b. Spread the modified sand body on the simulated Gobi surface with gravel and alkaline sand body (the soil content is more than the general sand body) with a certain area. The thickness of the paving is about 10cm. Under the spring climate conditions in Chongqing, the evaporation is small, and the modified sand body water evaporates and then en...

Embodiment 3

[0082] Embodiment three: comprise the following steps:

[0083] a. Prepare modified sand body:

[0084] a1 The solid organic matter that can dissolve in water is selected from sodium carboxymethyl cellulose;

[0085] Stir carboxymethylcellulose sodium and water according to the weight ratio of 1:100 to form a solution;

[0086] a2 Take 1000kg of sand body, then take 210kg of sodium carboxymethyl cellulose solution, mix the sand body and sodium carboxymethyl cellulose solution and stir evenly to form a modified sand body, the substance carboxymethyl fiber in the modified sand body The weight ratio of plain sodium to sand body is: 1:481.0;

[0087] b. The modified sand body is paved on a certain area of ​​gravel and alkaline sand body (the soil content is more than that of the general sand body) to simulate the Gobi surface. The thickness of the paving is about 15cm. The water of the modified sand body is well preserved. In Chongqing Under spring climate conditions, the eva...

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Abstract

The invention discloses a method for governing gobi by utilizing modified sand. The modified sand is paved on the surface of the gobi to be governed, and is formed by dissolving a water-soluble solid organic matter in water to form a cohesive and adhesive solution, and mixing the cohesive and adhesive solution with sand; after moisture evaporates, the water-soluble solid organic matter can bond sand, and can be dissolved in water again after meeting water to form the cohesive and adhesive solution to bond sand. According to the invention, common sand can serve as soil; the interaction among sand grains is changed fundamentally; a particle pore structure with binding force (sticking force) is formed; after repeated evaporation and wetting, materials cannot run off easily due to the cohesive and adhesive properties, and the modified sand can be as stable as soil, and can store water and nutrients as soil. Therefore, the method provides a solid condition for tree growth, and is an ideal gobi governing measure.

Description

technical field [0001] The invention relates to the management and utilization of Gobi land resources, in particular to a method for using modified sand bodies with soil characteristics to control Gobi. Background technique [0002] Gobi is a type of desert, which is a desert terrain covered with coarse sand and gravel on a hard soil layer. The ground is mainly composed of gravel, that is, a desert with undulating and gentle terrain covered with large gravels. The fine sand on the Gobi ground has been blown away by the wind, leaving gravel covered, so there is a difference between a gravel desert and a stony desert. This area is full of sand and rocks, with little water on the ground and few vegetation. [0003] China's Gobi is widely distributed in the vast desert and semi-desert flat land to the northwest of the Wendul Temple-Bailing Temple-Otuoke Banner-Yanchi line, with a total area of ​​about 455,000 square kilometers. The vast Gobi Desert is covered with coarse sand ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G9/10E02D3/12
Inventor 易志坚杨庆国赵朝华谷建义周超彭凯黄锋何小兵马银华
Owner 易志坚
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