Rapid cultivation method for forming biological soil crusts from ionic rare earth abandoned mine soil and application of rapid cultivation method

A biological soil and crust technology, applied in the field of environmental biology, can solve the problems of the undiscovered rapid cultivation method of biological soil crust and its application, long cycle, cumbersome steps, etc., to improve and prevent soil erosion, erosion resistance and Improves water retention performance and shortens production cycle

Pending Publication Date: 2020-08-07
江西离子型稀土工程技术研究有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this patent, fungi and cyanobacteria are mixed and inoculated on quicksand, which can quickly form a stable composite crust, but before inoculation, it is necessary to prepare fungus and cyanobacteria culture fluid, the steps are cumbersome and the cycle is long
So far, no patent has been found to report on the rapid cultivation method and application of biological soil crusts formed in ionic rare earth abandoned mines

Method used

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  • Rapid cultivation method for forming biological soil crusts from ionic rare earth abandoned mine soil and application of rapid cultivation method
  • Rapid cultivation method for forming biological soil crusts from ionic rare earth abandoned mine soil and application of rapid cultivation method
  • Rapid cultivation method for forming biological soil crusts from ionic rare earth abandoned mine soil and application of rapid cultivation method

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Experimental program
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Effect test

Embodiment 1

[0036] The raw materials used in the research of this example are collected from the mine ecological restoration and environmental protection test base (hereinafter referred to as the test base) of the National Engineering Technology Research Center for the Efficient Development and Utilization of Ionic Rare Earth Resources, an ion-type rare earth abandoned mine after ammonium sulfate heap leaching , located in Chakeng Village, Lingbei Town, Dingnan County, Ganzhou City, Jiangxi Province (115°6′3″ east longitude, 24°57′35″ north latitude), but not as a limitation on the scope of application of the present invention.

[0037] The artificial biological soil crust cultivation steps are as follows:

[0038] Step 1: Collection of biological soil crusts. Select well-developed 6 different types of biological soil crusts in the test base, use a small flat shovel, scoop out the crusts and the 1cm thick soil layer under the crusts, and put them into plastic sealed bags. Manually pick o...

Embodiment 2

[0047] Soil erosion test is carried out to the artificially cultivated biological soil crust obtained in embodiment 1

[0048] Proceed as follows:

[0049] It is carried out with a side-spray artificial simulated rainfall device. The device consists of 2 groups of single nozzles spraying against each other, and the rainfall height is 1m. The slope of the soil tank is set at 15°. A collecting device is installed at the lower end of the soil tank to collect runoff sediment samples, and a collection bucket is installed at the bottom for the collection and observation of rainfall erosion sediment and surface runoff. Before simulating artificial rainfall, ensure that the test soil is saturated with water. The experimental treatments included artificial biological soil crusts (BSCs) and blank control (CK). According to the main rainfall type that causes soil loss is short-duration, high-intensity rainfall, and the rainfall time is mostly about 1 hour, the test design is 3 kinds o...

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Abstract

The invention provides a rapid cultivation method for forming biological soil crusts from ionic rare earth abandoned mine soil and an application of the rapid cultivation method, and belongs to the field of environmental biotechnology. The rapid cultivation method comprises the following steps of 1) selecting a plurality of different types of biological soil crusts, and performing impurity removal, air drying and crushing to obtain different types of crushed crusts; 2) inoculating the different types of crushed crusts obtained in the step (1) to the surface of soil, and carrying out constant-temperature illumination cultivation for 7-9 weeks to obtain different types of candidate artificially cultivated biological soil crusts; and 3) with the crust coverage as a first screening index and the plant height as a second screening index, performing screening to obtain the most dominant artificially cultivated biological soil crusts. Cultivation is continued for 240-260 days, and the influence of the development of the artificially cultivated biological soil crusts on the physicochemical and hydrological properties of the ionic rare earth abandoned mine soil is researched. The artificialbiological soil crusts provided by the invention has good effects of improving the ionic rare earth abandoned mine soil and preventing and treating water and soil loss.

Description

technical field [0001] The invention belongs to the field of environmental biotechnology, and in particular relates to a rapid cultivation method for forming biological soil crusts from ionic rare earth abandoned mine soil and its application. Background technique [0002] Biological soil crust technology has achieved good results in environmental governance such as windbreak and sand fixation and soil erosion control in sandy land and desertification areas. Biological Soil Crusts (BSCs) are composed of cryptogamous plants such as cyanobacteria, desert algae, lichens, mosses, and soil microorganisms, as well as other related organisms that interact with the soil through mycelium, rhizomes, and secretions. It is a very complex complex formed by the cementation of surface particles, which is widely distributed in various climate and habitat conditions. Algae, mosses, and lichens that make up BSCs are common pioneer colonizing plants. They can not only grow and reproduce in en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02Y02P60/20
Inventor 邓扬悟汪江萍黄金王慧娟陈国梁唐纯
Owner 江西离子型稀土工程技术研究有限公司
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