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Biological crust sand fixing technology

A technology of crusting and microorganisms, applied in the fields of botanical equipment and methods, gardening, gardening tools/equipment, etc., can solve problems such as affecting the composition and stability of sand-fixing vegetation, increasing soil moisture content, reducing water evaporation, etc., to shorten the transitional reproduction. Time, low cost, economical and fast effect

Inactive Publication Date: 2006-10-11
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This indirectly affects the composition and stability of the original sand-fixing vegetation. This is the root cause of the failure of simply using tree planting to control sand. As for the grass grid sand barrier and clay sand barrier, not only can not reduce water evaporation, but increase the water content in the soil. Moreover, the method is primitive and labor-intensive, which is extremely disproportionate to modern science and technology and the urgent need to control large-scale desertified land.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Shovel the original microbial crust soil with a thickness of 2-5mm on the surface of the arid desert area in Xinjiang, my country, sort out the sundries, crush them, and use 1mm and 0.5mm sampling sieves to sieve the crust fragments smaller than 1mm and larger than 0.5mm for propagation matrix. The propagation medium is ordinary sandy soil. Choose flower pots or plastic seedling pots as the breeding container. The depth of the container is within 5cm, and the thickness of the sandy soil is slightly lower than the surface of the container by 1-1.5cm.

[0019] at 0.2kg / m 2 Sprinkle the original crust soil evenly on the surface of the substrate, and then press 1L / m 2 Spray the nutrient conditioner evenly on the surface of the original crust soil to fully moisten the matrix sand and crust soil. Shade properly, keep the light at 8000-10000lux, and control the temperature at 20-30°C. Under this culture condition, the biological crust showed signs of growth in 3-5 days, the ...

Embodiment 2

[0022] Shovel the original soil of microbial crusts with a thickness of 2-5mm on the surface of the arid desert area in Xinjiang, my country, sort out the debris, crush them, and use 1mm and 0.5mm sampling sieves to sieve the crust fragments smaller than 1mm and larger than 0.5mm as breeding matrix. The propagation medium is ordinary sandy soil. Choose flower pots or plastic seedling pots as the breeding container. The depth of the container is within 5cm, and the thickness of the sandy soil is slightly lower than the surface of the container by 1-1.5cm.

[0023] at 0.2kg / m 2 Sprinkle the original crust soil evenly on the surface of the substrate, and press 1.5L / m 2 Spray the nutrient conditioner evenly on the surface of the original crust soil to fully moisten the matrix sand and crust soil. Shade properly, keep the light at 8000-10000lux, and control the temperature at 20-30°C. Under this culture condition, the biological crust showed signs of growth in 3-5 days, the growt...

Embodiment 3

[0026] Shovel the original microbial crust soil with a thickness of 2-5mm on the surface of the arid desert area in Xinjiang, my country, sort out the sundries, crush them, and use 1mm and 0.5mm sampling sieves to sieve the crust fragments smaller than 1mm and larger than 0.5mm for propagation matrix. The propagation medium is ordinary sandy soil. Choose flower pots or plastic seedling pots as the breeding container. The depth of the container is within 5cm, and the thickness of the sandy soil is slightly lower than the surface of the container by 1-1.5cm.

[0027] at 0.2kg / m 2 Sprinkle the original crust soil evenly on the surface of the substrate, and then press 2L / m 2Spray the nutrient conditioner evenly on the surface of the original crust soil to fully moisten the matrix sand and crust soil. Shade properly, keep the light at 8000-10000lux, and control the temperature at 20-30°C. Under this culture condition, the biological crust showed signs of growth in 3-5 days, the g...

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Abstract

The invention relates to a method for restoring ground surface by using the natural breeding of culture got from microbiological crust in desert soil. The invention simulates the natural rule of microbiological crust in soil to make the forming time of high cover rate of crust in desert soil be shortened, which can not only treat sand running in desert fast but also make the development between creatures and environment and creatures in treating area be harmonic in the long run. The invention is of great importance in increasing crust cover rate in desert area, increasing stability of sand surface and reducing surface corrosion.

Description

technical field [0001] The invention relates to a method for fixing desert quicksand by biological crusts, in particular, artificially implants artificial cultures of biological crusts in arid desert areas into desert land and then relies on natural reproduction to repair the surface. Background technique [0002] In recent years, my country's desertification has become more and more serious, and it is one of the countries with the most serious desertification in the world. The total area of ​​desertified land has reached 3.73 million square kilometers, and the annual expansion rate is 2460 square kilometers. The annual direct economic loss due to desertification is as high as 540 million billion. In view of this serious situation, it is urgent to find an effective way to prevent the desertification of land resources. [0003] Traditional windbreak and sand fixation measures such as afforestation, grass grid sand barriers and clay sand barriers are effective on the surface, ...

Claims

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Application Information

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IPC IPC(8): A01G7/00A01G1/00
Inventor 陈亚宁李卫红任天瑞周智彬刘京玲
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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