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Method for rapidly constructing algal crust

A crusty and fast technology, applied in the field of comprehensive desertification control of desert algae, can solve the problems of lack of universality, no relevant reports and high cost in desert areas, and achieve the effect of improving survival ability, good application prospect and easy operation.

Active Publication Date: 2022-02-11
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] These methods are quite effective, but there are still problems such as time-consuming and high cost, and they are not universal in desert areas
However, there is no relevant report on the research on the construction of artificial crust by combining algae and clay minerals.

Method used

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  • Method for rapidly constructing algal crust
  • Method for rapidly constructing algal crust

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for rapidly constructing algal crust 1, comprising the following steps:

[0042] 1) Place the filamentous Microtheca sheaths in BG-11 liquid medium, under the light intensity of 40μE / (m 2s), under the condition of a temperature of 25±2°C, aerated culture for 24 days and a diurnal cycle of 12 hours each to obtain a culture of Microcolethecus, and then crush the culture of Microcoletheca to obtain a uniform algae slurry; wherein , the dry weight of the algae in the algae slurry is 0.0063g / mL; the composition and concentration of the BG-11 liquid medium are: 2.86g / L boric acid (H 3 BO 3 ), 1.86g / L manganese chloride tetrahydrate (MnCl 2 4H 2 O), 0.22g / L zinc sulfate heptahydrate (ZnSO 4 ·7H 2 O), 0.021g / L of sodium molybdate (Na 2 MoO 4 2H 2 O), 0.08g / L copper sulfate pentahydrate (CuSO 4 ·5H 2 O), 0.05g / L cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O), 75g / L magnesium sulfate heptahydrate (MgSO 4 ·7H 2 O), 36g / L calcium chloride dihydrate (CaCl 2 2H 2 O), ...

Embodiment 2

[0049] The method for rapidly constructing algal crust 2 in this embodiment 2 is basically the same as the method for constructing algal crust 1 in Example 1, the difference is that:

[0050] The montmorillonite particles are 500 times the dry weight of the algal pulp.

Embodiment 3

[0052] The method for quickly constructing algal crust 3 in this embodiment 3 is basically the same as the method for constructing algal crust 1 in Example 1, the difference is that:

[0053] The clay particles are kaolinite particles.

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Abstract

The invention discloses a method for rapidly constructing algal crust, which comprises the following steps of placing filamentous microcoleus vaginatus in a liquid culture medium, carrying out aerobic culture to obtain a microcoleus vaginatus culture, and then crushing the microcoleus vaginatus culture to obtain uniform algal slurry, uniformly mixing the algae slurry, the liquid culture medium and the clay particles to prepare uniform biological slurry, and uniformly inoculating the biological slurry on the sand dune, forming a slurry layer on the surface of the sand dune, and curing to construct the algal crust. According to the method, physical crust and biological crust are organically combined on the basis of water absorption, fertilizer retention and plasticity of clay and drought tolerance and binding and cementing capacity of microcoleus vaginatus, stable algal crust is constructed within a week, the method is easy to implement and simple and convenient to operate, and an effective method is provided for desertification restoration of artificial algal crust.

Description

technical field [0001] The invention relates to the field of comprehensive control of desertification by desert algae, in particular to a method for quickly constructing algae crusts. Background technique [0002] The problem of land desertification has become a serious threat to human beings, and it is also a major challenge to human beings. The total arid land area in the world accounts for more than one-third of the total land area, which is the chief culprit for the scarcity of land resources in some countries. At present, my country's desertified land area is about 2.61 million square kilometers, accounting for 27.2% of the total land area. Sandstorms are everywhere, strong winds are raging, coupled with the harsh conditions of poor nutrition, severe drought, water shortage, and large temperature differences, almost no grass grows in the desert, and it is difficult to form a complete ecosystem. my country's control of desertified land is mainly through the allocation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H4/00
CPCA01H4/002A01H4/008Y02A40/22
Inventor 夏令周克强宋少先
Owner WUHAN UNIV OF TECH
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