Sand modification method suitable for high-wind-erosion and high-water-erosion areas

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, wind erosion, and poor soil fertility, and achieve the effects of beneficial plant root development, obvious technical advantages, and good microbial communities

Inactive Publication Date: 2014-03-26
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 f

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1, Inner Mongolia Ordos 0.3 mu experimental sandy land, wind erosion and fertility experiment.

[0053] Domestic sludge rich in bacteria (taken from Ordos Wushen Banner Sewage Treatment Plant) and biogas residue (produced in rural areas), stale straw rich in actinomycetes and fungi (produced in pastoral areas), organic flocculant polyacrylamide After being dried at room temperature, a mixture is formed and stored, and 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-mentioned mixture, stir thoroughly with an appropriate amount of water, add 0.1 part of cross-linking agent borate ion in aqueous solution to carry out cross-linking at room temperature, and convert it into water-swellable but Super absorbent flocculent mixture that does not fall apart, breaks up into microbe / microbial medium clusters after drying slightly. The appearance characteristi...

Embodiment 2

[0059] Embodiment 2: Experimental beach with a width of 2 meters and a length of 10 meters at the seaside of Quanzhou, Fujian, which can be submerged when it reaches the highest tide, and water erosion experiment.

[0060] Bacteria-rich domestic sludge (a sewage treatment plant in Quanzhou), rotten leaves in forest areas rich in actinomycetes and fungi (broken into powder), and organic flocculant cationic modified starch were 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 soil, 10 parts of highly weathered weathered coal, 25 parts of the above mixture, stir well with appropriate amount of water, add 0.3 parts of crosslinking agent borate ion in aqueous solution to carry out crosslinking at room temperature, and convert it into water-swellable but not Scattered superabsorbent flocculated mixture that dries slightly and breaks up into clusters of microorganisms / microbial culture medium. ...

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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 method for improving sandy land suitable for areas with high wind erosion and water erosion. 【Background technique】 [0002] In areas with high wind erosion, such as most deserts and seaside dunes, and areas with high water erosion, such as most river beaches and soil erosion areas, the fine particle components of the soil are prone to segregation and stratification under vibration, and become fluids (such as in deserts). The wind, surface runoff and heavy water) are separated, and 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, loess areas and siltation areas are easy to use, but desertification areas have a large area and harsh natural conditions, so it is not easy to use them on a large scale at present. [0003] Since the growth of higher plants requires higher soil water content and ...

Claims

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Application Information

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IPC IPC(8): A01B79/00
Inventor 陈楷翰李小文
Owner QUANZHOU NORMAL UNIV
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