Method for controlling stony desertification through watercourse sludge

A technology of river silt and fly ash, which is applied in the direction of land preparation, application, agriculture, etc., to achieve the effects of protecting the environment, saving resources, and good social and economic benefits

Inactive Publication Date: 2015-03-25
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for controlling rocky desertification using river silt, which can not only solve

Method used

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Example Embodiment

[0009] The idea of ​​the present invention is to use the characteristics of high clay and organic matter content of the river / lake sediments and low permeability coefficient, combined with the difficulties of plant cultivation in rocky desertification areas, to make the river / lake sediments into pellets for nutrition Soil, and bury pioneer plants that can control rocky desertification. Spherical nutrient soil can be sown directly in rocky desertification areas, or sown by hole application. Pioneer plants use the nutrients in the nutrient soil made by the bottom mud to stabilize and grow, and then through the expansion of roots, realize The immobilization in rocky desertification areas can realize the rapid and stable growth of pioneer plants in rocky desertification areas and promote the improvement of vegetation in rocky desertification areas.

[0010] The present invention will be further explained below:

[0011] The invention of the method is: adding fly ash to the river silt,...

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Abstract

The invention discloses a method for controlling stony desertification through watercourse sludge. The method includes the steps that coal ash is added to the watercourse sludge to be mixed evenly, the mixture is placed indoors for 5-10 days, the water content is made to reach 45-70%, the mixture is made to be balls through a mold, roots of seedlings of pioneer plants are buried in the balls, and the balls are evenly placed to the stony desertification areas. The method has the advantages that a large amount of watercourse sludge is processed, the problem that environmental pollution is caused when sludge is dumped to seas or used for land filling can be solved, the problem that plants are difficult to plant due to soil depletion of the stony desertification areas can also be solved, resource utilization of the watercourse sludge is achieved, resources are saved, the environment is protected, and good social and economic benefits and wide application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a method for controlling rocky desertification. Background technique [0002] Stony Desertification (Stony Desertification) refers to the destruction of surface vegetation caused by human activities under the tropical and subtropical humid and semi-humid climate conditions and the natural background of extremely developed karst, resulting in serious soil loss, large areas of bedrock exposed or The land degradation phenomenon of gravel accumulation is also an extreme form of land degradation in karst areas. my country's rocky desertification mainly occurs in the karst area centered on the Yunnan-Guizhou Plateau, from the southern foot of the Qinling Mountains in the north, to the Guangxi Basin in the south, to the Hengduan Mountains in the west, and to the west of the Luoxiao Mountains in the east. The administrative scope covers 463 counties in 8 pro...

Claims

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Application Information

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IPC IPC(8): A01B79/02
Inventor 何强钟志华李莉古励艾海男梁建军
Owner CHONGQING UNIV
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