Pattern for building artificial algal crust in desert

A technology of natural algae crusts and crusts, which is applied in the direction of soil lifting machinery, horticulture, botanical equipment and methods, etc., can solve the problems that artificial biological crusts have not made breakthroughs, and achieve saving manpower and material resources and improving cultivation speed Fast, save the effect of purification and separation process

Inactive Publication Date: 2012-08-01
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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  • Application Information

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Problems solved by technology

There has been no breakthrough in the research on the large-scale application of artificial biological crusts in deserts

Method used

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  • Pattern for building artificial algal crust in desert
  • Pattern for building artificial algal crust in desert
  • Pattern for building artificial algal crust in desert

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: Construction model of artificial algal crusts in the desert environment of Gurbantunggut Desert, Xinjiang

[0027] The present invention specifically provides a construction model of artificial algae crust in the desert environment of Gurbantunggut Desert, Xinjiang, and its specific construction steps are as follows:

[0028] (1) Selection of algal species: collect well-developed natural algal crust soil samples in the field, see attached figure 1 , ground after air drying, and then collected soil samples.

[0029] (2) Liquid culture: After passing the bare sand through a 0.2mm sieve, add 100g of bare sand per liter of medium, place it on the culture frame, and then add the ground crust soil sample prepared in the above steps to the liquid medium for cultivation, the inoculation amount It is 50g dry soil / liter medium, the culture temperature is room temperature, and the light intensity is 80μE·m -2 ·s -1 , see attached figure 2 After 3 weeks, the algae s...

Embodiment 2

[0036] Example 2: The effect test of the artificial algae crust construction model in the desert environment of Gurbantunggut Desert, Xinjiang

[0037] Specific experimental method: use the content of chlorophyll a in the soil to represent the algae biomass. For the measurement method, refer to the literature (Xie et al., 2007, Soil Biology & Biochemistry, 567-572). The total biomass of algae, the biomass of harvested algae is the product of the biomass content of algae and the soil weight of harvested algae.

[0038]

[0039] The construction model of the artificial algae crust in the desert environment of the Gurbantunggut desert in Xinjiang provided above can rapidly multiply the algae species. The specific analysis is as follows:

[0040] 1) The natural algae crust collected from the field, the sampling depth is 1cm, and its bulk density is 1.744±0.068g cm -3 , that is, at a depth of 1cm, 1cm -2 The algal crust weight of the area was 1.744 ± 0.068 g. The average alg...

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Abstract

The invention discloses a pattern for building artificial algal crust in a desert, which includes: subjecting hybrid algae in natural algal crust in Gurbantunggut Desert of Xinjiang to liquid culture, transferring the algae into a greenhouse for propagation and domestication, and finally inoculating domesticated algae stock to field deserts to generate artificial algal crust, wherein one liter of liquid culture medium contains 2.5g of (NH4)2HPO4, 0.07g of MgSO4X7H2O, 0.036g of CaC12X2H2O, 0.006g of citric acid, 0.006g of ferric citric amine, 0.001g of ethylenediamine tetraacetic acid sodium, 0.02g of CaCO3, 1mL of trace element A5 solution, and 40mL of soil extract. By using the hybrid algae for inoculation, the process of purification and separation is omitted, culturing speed is high, manpower and material resources are reduced, and important practical value is achieved.

Description

field of invention [0001] The invention relates to the application field of biotechnology, in particular, the invention relates to the technical field of construction mode of artificial algae crust in the desert environment of Gurbantunggut, Xinjiang. Background technique [0002] At present, traditional windbreak and sand fixation measures such as afforestation, grass grid sand barriers and clay sand barriers are effective on the surface, but they cannot fundamentally solve the problem of desertification and desertification land governance. The main reason is that higher plants grow slowly and have a long growth cycle, so it is difficult to play the role of windbreak and sand fixation in a short period of time. In addition, each higher plant impoverishes the already impoverished groundwater by its enormous pumping action. [0003] As a product of the special environment in arid desert areas, biological crust is an organic complex formed by microorganisms, algae, fungi, lic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01B77/00
Inventor 张丙昌王敬竹张元明
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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