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Method for greening and protecting steep road side slope by using biological crust

A biological crust and road technology, which is applied in the field of greening and protection on steep road slopes, can solve problems such as unfavorable seed germination and rooting and plant growth, difficulties in planting shrubs and grasses and planting, and inapplicable biological protection measures, etc., to achieve Significant landscaping effect, long-term sustainability of greening and protection effects, and the effect of improving soil moisture and nutrient conditions

Inactive Publication Date: 2011-08-03
BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, plant growth conditions are more severe on steep road slopes compared to normal road slopes
Affected by the steep slope, the rain-bearing area on the steep road slope is small, the evaporation is strong, and the soil moisture is scarce. At the same time, the soil is compact, the nutrients are poor, and the sunlight is insufficient. These conditions are not conducive to seed germination, rooting, and plant growth and development on the steep slope. , not only that, the steep slope will also cause great difficulties for shrub sowing and planting
Therefore, common biological protection measures are mostly not suitable for steep road slopes

Method used

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  • Method for greening and protecting steep road side slope by using biological crust
  • Method for greening and protecting steep road side slope by using biological crust
  • Method for greening and protecting steep road side slope by using biological crust

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1 Greening and protection of steep road slopes in the Loess Plateau area of ​​northern Shaanxi

[0042] The test site is located in Shegeda Village, Xigou Township, Shenmu County, Yulin City, Shaanxi Province (110°22′E, 38°48′N), with an average annual precipitation of 409mm, belonging to the interlaced area of ​​water erosion and wind erosion on the Loess Plateau. The selected side slope is the road side slope formed when the village built the village-level road in 2003. The side slope is about 8m high, 12m wide, and the slope is 75°. The slope formed after manual and machine excavation is relatively flat and smooth. Although it has been formed for several years, due to the harsh growth conditions of plants, it has been completely exposed for a long time, and there are shallow ditches formed by runoff erosion. It belongs to the loess area. Typical steep road slope.

[0043] For the steep road slope selected above, this embodiment first collects the provenance ...

Embodiment 2

[0051] Basically with embodiment 1, wherein, the proportioning of biological crust composition is as follows:

[0052] 0.3kg / m 2 The biological crust with 0.5kg / m 2 Mix fine soil passing through a 1mm sieve, and at the same time mix in 3g / m nitrogen 2 of urea and phosphorus 7g / m 2 Potassium dihydrogen phosphate (contains potassium 8.8g / m 2 ), and add 60g / m 2 of polyacrylamide and 7g / m 2 Urea-formaldehyde resin and 70g / m 2 alfalfa crude fiber. After mixing the above mixture with 3L / m 2 After the water is mixed uniformly, a biological crust composition is prepared.

[0053] The steep side slope in Example 1 is greened with the biological crust composition of the above components, and the same effect as in Example 1 is also achieved.

Embodiment 3

[0055] Basically with embodiment 1, wherein, the proportioning of biological crust composition is as follows:

[0056] 0.4kg / m 2 The biological crust with 1kg / m 2 Mix fine soil passing through a 1mm sieve, and at the same time mix in nitrogen-containing 4g / m 2 of urea and phosphorus 6g / m 2 superphosphate and potassium 8g / m 2 Potassium chloride, and add 55g / m 2 Sodium polyacrylate and 6g / m 2 polyvinyl alcohol and 70g / m 2 alfalfa crude fiber. After mixing the above mixture with 4L / m 2 After the water is mixed uniformly, a biological crust composition is prepared.

[0057] The steep side slope in Example 1 is greened with the biological crust composition of the above components, and the same effect as in Example 1 is also achieved.

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Abstract

The invention discloses a biological crust composition for greening and protecting a steep road side slope and application thereof. The biological crust composition for greening and protecting the steep road side slope, provided by the invention, comprises the following components in parts by weight: 200-500 parts of biological crust source, 500-1,000 parts of fine earth, 3-5 parts of nitrogen, 5-7 parts of phosphorous, 6-9 parts of potassium, 50-60 parts of water retention agent, 5-10 parts of adhesive and 50-70 parts of coarse fiber. The invention also provides a method for greening and protecting the steep road side slope by using the biological crust composition. A biological crust with a high degree of coverage can be formed in a short period of time by adopting an artificial inoculating and culturing method, so that the steep road side slope is covered, greened and effectively protected. The method has the advantages of low cost, easiness, convenience, quickness, extensive management and easiness in maintenance and popularization, and is an effective method for greening and protecting the steep road side slope.

Description

technical field [0001] The invention belongs to the fields of slope protection and ecological environment management, in particular to a method for greening and protecting steep road slopes by using biological crusts. Background technique [0002] my country is a mountainous country, and mountains, hills and plateaus with complex topography account for more than 50% of the country's land area. Due to terrain restrictions, mountain roads (roads and railways) mostly pass between river valleys and mountains. Therefore, excavation of earthwork along the road during road construction has formed a large number of road slopes. The excavation of these road slopes destroyed the original surface vegetation and formed a large amount of bare land, resulting in serious soil erosion and great damage to the local natural landscape and ecological environment. At the same time, the exposed road slopes are not conducive to maintaining a happy mood for drivers and passengers, easily lead to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/04E02D3/00E02D17/20
CPCY02P60/21
Inventor 肖波王庆海赵允格
Owner BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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