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A kind of method of actinomycetes sand fixation

A technology of actinomycetes and bacterial liquid, applied in the field of biological environmental engineering, can solve the problems of poor biological environment compatibility, inability of plants to survive, short sand fixation cycle, etc., and achieve the effects of simple operation, environmental protection of sand fixation, and wide application.

Inactive Publication Date: 2016-03-16
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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Problems solved by technology

[0008] Various single sand fixation measures have their characteristics and limitations. Although engineering sand fixation is fast and effective, it is costly and has poor compatibility with the biological environment. Although biological sand fixation has a good effect on ecological environment protection, it cannot The climatic and hydrological conditions usually make it impossible for plants to grow or survive after planting; although chemical sand fixation is low in cost, quick and convenient in construction, and has good biocompatibility, the sand fixation cycle is usually short; in terms of large-scale treatment, modern sand control projects Efficient, cheap, fast and convenient

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  • A kind of method of actinomycetes sand fixation
  • A kind of method of actinomycetes sand fixation
  • A kind of method of actinomycetes sand fixation

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Embodiment Construction

[0027] The invention is not limited to the following examples:

[0028] A kind of novel method of actinomycetes sand-fixing of the present invention, carry out according to the following steps:

[0029] a. Source and culture of actinomycetes: select Actinomycesnaeslundii, place the strain in nutrient broth medium for recovery, transfer it to an Erlenmeyer flask containing 50 mL of nutrient broth medium, and adjust the pH to 4-11 , and then place the Erlenmeyer flask under the conditions of 130 rpm and 30°C for 48 hours to obtain the actinomycetes bacterial liquid;

[0030] b. Induction and solidification of actinomycetes acclimatization and enrichment: the actinomycetes obtained in step a are placed in a nutrient soup with a mass content of 1-20% urea and 0.01-0.5 mol / liter calcium ion as nutrient broth and rice washing Mix in water medium, place the mixed solution under the condition of rotating speed of 130 rpm and temperature of 30°C for 5-7 days to enrich and obtain solid...

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Abstract

The invention relates to a novel method for Actinomycesnaeslundii sand stabilization. The method comprises the steps of selecting Actinomycesnaeslundii, then arranging the Actinomycesnaeslundii in a nutritional culture medium containing urea and calcium ions to obtain Actinomycesnaeslundii liquid having inducing and curing effect through enrichment, then evenly spraying the Actinomycesnaeslundii liquid having curing effect and obtained through enrichment on the sandy soil surface layer in multiple times, arranging the sandy soil sprayed with the Actinomycesnaeslundii liquid in a natural drying environment to perform several-day cultivation and then finishing an experiment. The method is simple and convenient to operate, easy to control and low in cost and can be widely used for fixing travelling dunes and semi-travelling dunes in arid regions.

Description

technical field [0001] The invention relates to a method for fixing sand by actinomycetes, in particular to a method for fixing movable sand dunes by actinomycetes with curing function, and belongs to the technical field of biological environment engineering. Background technique [0002] Land desertification is a worldwide ecological environment problem. China is one of the countries in the world with large deserts, wide distribution and serious desertification hazards. According to the results of the national desertification census from 1994 to 1996, the total area of ​​deserts and desertification in the country accounted for 17.85% of the total land area. For a long time, due to climate drought and intensified human activities, irrational use of land and insufficient investment in desertification control have caused serious land degradation. According to the survey, from the 1950s to the 1970s, the average annual desertification land increased by 1560km 2 ; From the mi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/12
CPCC09K17/00E02D3/12
Inventor 潘响亮宋文娟张道勇
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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