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Carbonization greening method for desert sand stabilization improvement

A desert and curing agent technology, applied in botany equipment and methods, seeding, planting substrates, etc., can solve the problems of poor environmental benefits and long-term stability, poor improvement effect, high economic cost, etc., to shorten the curing cycle and avoid moisture Evaporation, the effect of increasing the coverage area

Active Publication Date: 2021-03-16
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the deficiencies in the above-mentioned background technology, the present invention aims to propose an economical, practical, sustainable and efficient construction method for carbonization and greening of desert improvement to solve the problem of long improvement period, serious water loss, poor improvement effect, Defects such as high economic cost, poor environmental benefits and long-term stability, and at the same time realize the resource utilization of greenhouse gases and wastes in the improvement of desert governance

Method used

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  • Carbonization greening method for desert sand stabilization improvement
  • Carbonization greening method for desert sand stabilization improvement
  • Carbonization greening method for desert sand stabilization improvement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] a. On the basis of the steps of the above method, if the thickness of the desert soil layer is greater than 3.0m, the content of fine sand is 85%, and the moisture content is less than 4%, then the mixture of magnesium oxide and slag is selected as the main curing agent, and the content of magnesium oxide powder accounts for 80% of the total weight of the mixture; according to the water-solid ratio is 1.2 to prepare the curing agent slurry;

[0054] b. The planting plant on the desert site is scheduled to be Populus euphratica, the processing depth of the mixing head 9 is set to 50cm, the soil loosening depth of the rotary plow 7 is 30cm, the width of the greening grid area is 2.0m, and the mobile form of the crawler vehicle A5 is set For row-by-row movement (such as image 3 ), the orientation signal of mechanical walking is set, and is sent by transmitter 11;

[0055]c. open the pump A25 and the control valve A27, adjust the control valve A27 to make the content of c...

Embodiment 2

[0061] a. On the basis of the steps of the above method, if the thickness of the desert soil layer is 1.0-3.0m, the content of fine sand is 60%, and the moisture content is less than 4%, then the mixture of magnesia and slag is selected as the main curing agent, magnesia powder The content accounts for 50% of the total weight of the mixture; the curing agent slurry is prepared according to the water-solid ratio of 1.2;

[0062] b. The planting plant on the desert site is scheduled to be camel thorn, the processing depth of the mixing head 9 is set to 30cm, the soil loosening depth of the rotary plow 7 is 20cm, the width of the greening grid area is 1.5m, and the movement of the crawler vehicle A5 is set. The form is to move vertically and then horizontally (such as Figure 4 ), the orientation signal of mechanical walking is set, and is sent by transmitter 11;

[0063] c. open pump A25 and control valve A27, adjust control valve A27 to make the content of curing agent in sand...

Embodiment 3

[0069] a. On the basis of the steps of the above method, if the thickness of the desert soil layer is 1.0m, the content of fine sand is 30%, and the moisture content is 5-7%, then the mixture of magnesium oxide and slag is selected as the main curing agent, and magnesium oxide powder The content accounts for 30% of the total weight of the mixture; the curing agent slurry is prepared according to the water-solid ratio of 1.0;

[0070] b. The planting plants on the desert site are scheduled to be halophytes, the processing depth of the mixing head 9 is set to be 25cm, the soil loosening depth of the rotary plow 7 is 10cm, the width of the greening grid area is 1.0m, and the tracked vehicle A5 is set The form of movement is first vertical and then horizontal (such as Figure 4 ), the orientation signal of mechanical walking is set, and is sent by transmitter 11;

[0071] c. Open the pump A25 and the control valve A27, adjust the control valve A27 to make the content of the curin...

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Abstract

The invention discloses a carbonization greening method for desert sand stabilization improvement, and belongs to the technical field of desert control improvement. The method comprises the steps of field exploration and test, mechanical parameter setting, isolation wall construction, soil loosening of a to-be-greened area, porous pipe burying, spraying of a nutrient medium and plant seeds, mulching film laying, ventilation carbonization, nutrient solution supply and the like. According to initial conditions such as sandy soil thickness, fine grain content and water content of deserts, the curing agent and plant type, treatment depth and carbonization mode are adjusted. Through sequential work of all the steps, a large-area desert can be isolated into a small-area to-be-greened area withina short time, and sand dunes are prevented from moving and accumulating. The mulching film and porous pipe are adopted, so that the carbonization and reinforcement efficiency is improved, and the germination and growth of plants are promoted. According to the carbonization greening method, the technical defects that in the prior art, the improvement greening effect is poor, the improvement periodis long, the economic cost is high, and the environmental benefits are poor in the severe environment are overcome, and resource utilization of greenhouse gas and waste in desertification control improvement is achieved.

Description

[0001] Field [0002] The invention discloses an improved carbonization greening method for desert sand fixation, which belongs to the technical field of desert control improvement, and specifically relates to chemical sand fixation and biological sand control. Background technique [0003] Under the sandy conditions of extremely arid, semi-arid and partially sub-humid areas, affected by natural factors or unreasonable human activities, the ecological balance is destroyed, and there is aeolian sand activity, which gradually forms the land degradation of wind erosion and wind erosion landform structure landscape . my country is one of the countries with the most serious desertification in the world, among which the desert is the most serious hazard. The desertification area has reached 809,000 square kilometers, and it is still expanding. Land desertification will threaten my country's ecological security and the sustainable development of social economy, as well as the surviv...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01G22/00A01B49/02A01B49/06A01C7/08A01C23/02A01G13/02A01G24/10A01G24/20A01G24/28A01G25/06G01D21/02G01N1/08G01N33/24E02D3/00
CPCA01G17/00A01G22/00A01B49/022A01B49/065A01C7/085A01G24/10A01G24/28A01G24/20A01G13/0275A01C23/023A01G25/06G01N33/24G01N33/246G01N1/08G01D21/02E02D3/00Y02A40/28
Inventor 蔡光华徐伟翔邵光辉赵志峰沈嘉毅赵曜钟煜清王俊阁
Owner NANJING FORESTRY UNIV
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