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Prevention method for potential rocky desertification in karst mountainous area

A rocky desertification and potential technology, applied in land preparation methods, botanical equipment and methods, and soil protection, etc. problems, to reduce soil erosion, increase economic benefits, and achieve obvious effects of governance

Inactive Publication Date: 2014-07-09
GUIZHOU NORMAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

But now in rocky desertification control projects, there is often no engineering design and measure configuration for different levels of rocky desertification, and the governance method is single, such as only afforestation, resulting in insignificant governance effects

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0020] The Yachi Demonstration Area in Bijie, Guizhou is a typical potential rocky desertification area in karst mountainous areas. The applicant has carried out a pilot project of rocky desertification control in this area, and adopted the following control methods:

[0021] 1) Land laddering and soil improvement: build stone ridges and slopes to terraces, and support field production access roads to curb the further development of soil erosion; use walnuts, peppers, peanuts, and ryegrass to build biological slopes to terraces, which not only reduces water and soil erosion, but also increases the economy. Benefits: Improve land cultivation methods, promote less-tillage, no-tillage, crop rotation, scientific fertilization, change soil physical and chemical properties, and achieve soil improvement purposes;

[0022] 2) Crop variety improvement: change the pattern of sloping farmland mainly planting corn, and develop economical forestry and animal husbandry;

[0023] 3) Compound...

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Abstract

The invention relates to a prevention method for potential rocky desertification in a karst mountainous area. The prevention method includes: terracing land and improving soil; improving crop varieties; performing compound management of slope cropland; performing water resource development and utilization and optimal operation; performing agricultural water-saving irrigation; performing participatory ecological planting; performing comprehensive development and utilization of biogas; building biogas digesters, utilizing the biogas for cooking, using biogas residue for fertilization, and establishing a 'pig-biogas-economic fruit forest' courtyard ecological pattern. Through the method, the potential rocky desertification in the karst mountainous area is treated effectively, water and soil loss is reduced, the trend of rock coverage is restrained, and social and economic coordinated development is realized.

Description

technical field [0001] The invention relates to a method for preventing and controlling potential rocky desertification in karst mountainous areas. Background technique [0002] The distribution area of ​​exposed and semi-exposed karst areas in China is more than 1.3 million square kilometers, accounting for 13.54% of the total land area. The 550,000 square kilometers of karst in southern China centered on the Guizhou Plateau is the largest and most intensely developed area of ​​tropical and subtropical karst in China and the world. Karst environmental and ecological problems are very typical and representative in the country and the world sex. The special environment and ecology have produced various effects on natural conditions, human survival and economic and social development: on the one hand, the evolution of geological history driven by dissolution, erosion and collapse has formed colorful tropical and subtropical karst landscapes, Occupying a prominent position in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00A01B79/00A01G1/00
CPCY02A30/254Y02A40/28Y02B80/32Y02P60/20
Inventor 熊康宁罗娅李晋龚进宏吴光梅
Owner GUIZHOU NORMAL UNIVERSITY
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