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A sand improvement method suitable for areas with high wind and water erosion

A sandy land and water erosion technology, which is applied in the field of sandy land improvement, can solve problems such as low transportation costs, poor soil fertility, wind erosion, etc., and achieve the effects of beneficial plant root development, good microbial communities, and obvious technical advantages

Inactive Publication Date: 2016-03-23
QUANZHOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The problem of this invention is: under the action of wind erosion, the sedimentary rock and soil are easily separated from the sand to form sandstorm material because of the small particles, and the soil is separated from the sand and floats to the surface during flood irrigation or heavy rain, resulting in wind erosion and surface compaction; Lack of microorganisms and humus, actually poor soil fertility due to lack of ecological links; the advantage of lower cost is also offset by the larger amount of inferior clay (transportation costs increase accordingly)
But there are also coarse and fine particles that are easy to separate, poor wind erosion resistance, high cost (mainly because humic acid compound fertilizer is an expensive industrial product), long transformation time, and also uncompetitive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1: Experiments on wind erosion and fertility of 0.3 mu of experimental sandy land in Ordos, Inner Mongolia.

[0053] Bacteria-rich domestic sludge (taken from the Wushen Banner Sewage Treatment Plant in Ordos) and biogas residue (produced in rural areas), stale straw rich in actinomycetes and fungi (produced in pastoral areas), organic flocculant polyacrylamide After drying at room temperature, the mixture is formed and stored. The weight ratio of each component is 15:15:1.

[0054] Take 100 parts of local chestnut soil, 10 parts of highly weathered weathered coal, 10 parts of the above mixture, stir well with appropriate amount of water, and add 0.1 part of crosslinking agent borate ion to carry out cross-linking at room temperature to convert into water swellable but The super absorbent flocculent mixture that will not disperse will be broken into clusters of microorganisms / microbial culture medium after being slightly dried. The appearance characteristics of the ...

Embodiment 2

[0059] Example 2: The experimental beach in Quanzhou, Fujian Province, which is 2 meters wide and 10 meters long, can be submerged when the tide reaches the highest tide. Water erosion test.

[0060] The domestic sludge rich in bacteria (a sewage treatment plant in Quanzhou), the decayed leaves (broken into powder) in the forest area rich in actinomycetes and fungi, and cationic modified starch with organic flocculant are dried at room temperature to form a mixture, and stored. The weight ratio of each component is 20:6:5.

[0061] Take 100 parts of local red clay, 10 parts of highly weathered weathered coal, 25 parts of the above mixture, stir well with proper amount of water, and add 0.3 parts of crosslinking agent borate ion to crosslink at room temperature. It will be converted into water swellable but not The dispersed superabsorbent flocculent mixture is slightly dried and broken into clusters of microorganisms / microbial culture medium. The appearance characteristics of the ...

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PUM

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Abstract

The invention provides a sand modification method suitable for high-wind-erosion and high-water-erosion areas. The method includes: respectively drying various sludge rich in bacteria, various decayed straw, forest litter powder or forest soil rich in actinomycetes and fungi, organic flocculants at normal temperature, and mixing the same to obtain mixture, and storing; well mixing the mixture with local clay minerals, decomposed coal or humus soil, cross linking with water solution with cross-linking agent at normal temperature to form flocculent mixture, and crushing particles to form microorganism / microorganism cultivation medium cluster; mixing microorganism / microorganism cultivation medium cluster, plant straws, and soil with nitrogen-fixing bacteria, plowing with sand, and pouring 5-50 kilos of starch or molasses water solution to each mu of sand to activate microorganisms. The sand modified by the method is high in water retention, high in wind and water erosion resistance and low in cost.

Description

【Technical Field】 [0001] The invention relates to a sandy land improvement method suitable for areas with high wind erosion and water erosion. 【Background technique】 [0002] In areas with high wind erosion, such as most deserts and sea dunes, and areas with high water erosion, such as most river beaches and water and soil erosion areas, the fine particle components of the soil are prone to separation and stratification under vibration, and are fluid (such as in deserts). The separated fine particles are deposited in the distance to form loess areas and siltation areas, while leaving coarse particles in situ to form sandy or gravel-rich land. Generally, the loess area and the siltation area are easy to use, but the desertification area is wide and the natural conditions are bad, so it is not easy to use it on a large scale. [0003] The growth of higher plants requires high soil water content and the combination of soil microbial communities to decompose organic matter and mineral...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/00
Inventor 陈楷翰李小文
Owner QUANZHOU NORMAL UNIV
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