Water and soil conservation structure for accelerating rock weathering at stony desertification area and building method thereof

A rocky desertification and rock technology, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of thin soil layer and rock exposure, low vegetation survival rate, and large engineering workload, so as to increase the thickness of the soil layer and improve Weathering efficiency, the effect of improving the effective use of water

Pending Publication Date: 2018-04-13
BEIJING ORIENT LANDSCAPE
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  • Application Information

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Problems solved by technology

At present, engineering treatment technology and biotechnology are often combined to control rocky desertification, but the simple superposition of these two technologies does n

Method used

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  • Water and soil conservation structure for accelerating rock weathering at stony desertification area and building method thereof

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Effect test

Embodiment 1

[0026] The invention provides a soil and water conservation structure for accelerating rock weathering in rocky desertification areas, such as figure 1 As shown, a preferred embodiment of the present invention is shown therein. Specifically, the soil and water conservation structure includes a soil erosion control unit arranged in a concave area inside the raised rock 6 and an accelerated rock weathering unit arranged on the raised rock 6, and the soil erosion prevention unit includes a The semi-permeable mechanism at the bottom of the depressed area, the water storage and lifting mechanism arranged inside the rock 6 in the depressed region, the vegetation and grass mechanism arranged in the depressed region, and the accelerated rock weathering unit includes The rock weathering flora matrix layer 3 on 6, the water-absorbing stone mesh bag layer 4 arranged on the rock weathering flora matrix layer 3, and the turf 2 arranged on the water-absorbing stone mesh bag layer 4.

[002...

Embodiment 2

[0047] The present invention also provides a method for constructing a soil and water conservation structure for accelerating rock weathering in rocky desertification areas, the construction method comprising constructing the soil and water conservation structure through the following steps:

[0048] A. Build a semi-permeable mechanism, remove the original soil in the depression area surrounded by rocky desertification protruding rocks 6, and lay gravel layer 13, fine sand layer 12, and semi-permeable layer successively at the bottom of the depression area, and then water Compaction forms a semi-permeable body.

[0049] B. Build a water storage and lifting mechanism, construct a U-shaped gabion structure according to the structure of the water storage and lifting mechanism to form a water absorption and lifting module 8, and build a water collection module 5, which is horizontally arranged in the middle of the two side walls of the water absorption and lifting module 8 Support...

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Abstract

The invention relates to a water and soil conservation structure for accelerating rock weathering at a stony desertification area and a building method thereof. The water and soil conservation structure comprises a water and soil loss prevention unit and a rock weathering accelerating unit; the water and soil loss prevention unit comprises a semi-permeation mechanism arranged on the bottom of a concave zone, a water storage and fetching mechanism arranged in the inner periphery of rocks in the concave zone and a bush and grass planting mechanism arranged in the concave zone; and the rock weathering accelerating mechanism comprises a rock weathering flora substrate layer arranged on the rocks, a water absorbing stone net bag layer arranged on the rock weathering flora substrate layer and aturf arranged on the water absorbing stone net bag layer. According to the water and soil conservation structure, the rock weathering accelerating unit is arranged, so that the aim of providing a humid and acidulous environment for carbonate weathering is realized; meanwhile, through the arrangement of the water storage and fetching mechanism and the semi-permeation mechanism, the aim of ecostorage and utilization for rainwater and runoffs is realized; and the problem of water and soil loss caused by scouring of a large number of runoffs is effectively avoided.

Description

technical field [0001] The invention relates to the field of ecological restoration in rocky desertification areas, in particular to a soil and water conservation structure for accelerating rock weathering in rocky desertification areas and a construction method thereof, which is suitable for ecological restoration in mild to moderate rocky desertification areas. Background technique [0002] my country is the country with the largest and most widely distributed area of ​​rocky desertification, with an area of ​​more than 1.24 million km 2 . Rocky desertification is called "the cancer of the earth" by environmentalists. It is caused by irrational social and economic activities of human beings in fragile ecosystems in karst areas. Land degradation processes in desertified landscapes. Rocky desertification will lead to a reduction in grain production, a weakening of the system's ability to adjust and store water sources, and frequent droughts and floods, which are the main c...

Claims

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Application Information

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IPC IPC(8): E02D3/00
CPCE02D3/00
Inventor 赵晓红樊蓓莉夏博
Owner BEIJING ORIENT LANDSCAPE
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