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Management method of rocky land degradation

A rocky desertification and land technology, applied in botany equipment and methods, plant protection covers, applications, etc., can solve the problems of simplification of the ecosystem, great damage of rocky desertification, and impact on ecological security, and achieve the needs of improving growth conditions, save treatment costs, and use with good results

Active Publication Date: 2015-07-01
GUIZHOU LANTU NEW MATERIALS
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AI Technical Summary

Problems solved by technology

The hazards of rocky desertification are very serious, mainly manifested in the fact that it directly leads to a substantial reduction or even loss of land carrying capacity, aggravates natural disasters, seriously affects ecological security, leads to increased poverty in rocky desertification areas, and affects sustainable economic and social development. Desertification will lead to simplification of vegetation structure, simplification of ecosystem, leading to a sharp decline in biodiversity, etc.

Method used

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Embodiment Construction

[0014] In the embodiment of the present invention: the method for controlling rocky desertification, the following experiments were carried out on the experimental base in Southeast Guizhou in February 2014:

[0015] 1) Level the rocky desertification gravel base surface, and pre-fill a layer of subsoil layer containing water retaining agent on the rocky desertification base surface. The thickness of the bottom soil layer is 20cm, and the percentage of water retaining agent is 5%. ;

[0016] 2) Spread the geotextile on the bottom soil layer, the geotextile is made of polyester staple fiber needle-punched non-woven geotextile;

[0017] 3) Fill the geotextile with a layer of soil containing water-retaining agents and nutrients. The thickness of the soil containing water-retaining agents and nutrients is 20cm; the percentage of water-retaining agents is 3%; the percentage of nutrients is 0.1%; and compact it;

[0018] 4) Pave a geocell on the soil, spray soil containing drought-resistan...

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Abstract

The invention provides a management method of rocky land degradation. Geotextiles and geocells are utilized in a composite mode and accordingly the geotextiles and the geocells can be directly applied to the soil and water conservation of the rocky desertification area so as to create conditions for the large area of afforestation and vegetation is planted in the geocells to rebuild an ecological system so as to solidify stone and conserve water from the source and prevent the expansion of the desertification. According to the management method of the rocky land degradation, the good effect on the management in the rocky desertification area can be achieved through once implementation, the soil and water conservation can be effectively achieved, the conditions required by the vegetation and protection forest growth can be effectively improved, vast rock desert resources in China can be effectively utilized, and the rocky desertification land management cost is saved.

Description

Technical field [0001] The invention relates to the technical field of rocky desertification control and rocky desertification ecosystem reconstruction engineering, in particular to a method for the control of rocky desertification. Background technique [0002] Stony Desertification (Stony Desertification) refers to the tropical and subtropical humid, sub-humid climatic conditions and the natural background of extremely developed karst, disturbed by human activities, causing damage to surface vegetation, leading to serious soil loss, and large areas of bedrock exposed or The land degradation phenomenon of gravel accumulation is also an extreme form of land degradation in karst areas. By the end of the last century, in the 740,000 square kilometers of karst rocky mountain area in southwest my country, the area of ​​rocky desertification reached 105,000 square kilometers, accounting for 14.2% of the surveyed area, of which the area of ​​mild rocky desertification was 40,000 square...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/02A01G1/00
Inventor 杨再祥石文建
Owner GUIZHOU LANTU NEW MATERIALS
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