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A Method for Improving the Ecological Environment of the Loess Hilly and Gully Region

A technology for ecological environment and hills, applied in the field of ecological restoration engineering and ecological slope protection engineering, can solve the problems of low survival rate, high difficulty coefficient of planting, large water demand, etc., achieve high vegetation preservation rate, high seedling germination rate, and improve ecology environmental effects

Active Publication Date: 2019-08-27
INNER MONGOLIA HESHENG ECOLOGICAL SILVICULTURE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high water demand of trees, the survival rate of a large number of tree species planted in the arid and rainless hilly and gully areas is low, which increases the difficulty of maintenance and management in the project area
Secondly, planting on slopes is difficult and costly

Method used

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  • A Method for Improving the Ecological Environment of the Loess Hilly and Gully Region
  • A Method for Improving the Ecological Environment of the Loess Hilly and Gully Region
  • A Method for Improving the Ecological Environment of the Loess Hilly and Gully Region

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] 1. Slope improvement

[0091] 1-1) Excavators are used to perform scaling on the slope of the gully wall to reduce the slope of the gully wall, prevent landslides on unstable slopes, and fill the slope-cutting soil into the bottom of the gully, so that The bottom and top of the gully are flat, and the top of the gully is flat; the slope of the gully wall after slope cutting is 65°;

[0092] 1-2) After the slope is cut, the slope surface is leveled to remove debris on the slope surface, such as stones, weed roots, plastics and other debris, and the soil clods with larger particle sizes are crushed into particle sizes ≤3cm crushed soil;

[0093] For some loess hilly gullies that have been treated in the early stage, the cement series improvement materials or filling soil materials left due to the previous treatment contain more rocks. Loam soil ≥15cm.

[0094] In the embodiment of the present invention, the slope of the gully wall after the slope cutting treatment is d...

Embodiment 2

[0142] Except that the slope of the gully wall after the slope cutting treatment in step 1 is 75°; the relative humidity of the surface soil on the slope surface reaches 60 ± 5% in the first irrigation treatment in step 3; the fertilization rate in step 4 is 5kg / m 2 ; In step 5, the relative humidity of irrigation treatment for the first time to the slope surface soil reaches 60 ± 5%; the plant seeds sown in step 6 are selected to sow alfalfa, amorpha seeds, and the alfalfa and amorpha seeds sown The weight (dry weight) ratio is 1:1; the seeding rate is 80kg / mu; in step 7, the third irrigation process reaches 60 ± 5% of the relative humidity of the surface soil on the slope; and do not dig outside the nutrient ditch along the top of the ditch , all the other are identical with embodiment 1;

[0143] The monitoring results of various ecological indicators of vegetation are shown in Table 3 and 4

[0144] What sow in the embodiment of the present invention is the seeds of alfal...

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Abstract

The invention relates to a method for improving the ecological environment of loess-hilly-region gully areas. The method includes the steps that herbal or / and suffruticosa plant seeds are sowed on trench wall slope surfaces of the gully areas, and then a plurality of ecological mats are laid. The ecological environment of the loess-hilly-region gully areas is improved and recovered with the method, the problem that as a large amount of topsoil is taken away through rainwater scouring, the ecological environment with the serious water and soil erosion is damaged is solved, the vegetation growth speed is high, plant growth is exuberant, and the governance effect and the landscape effect can be achieved in the expected time; the vegetation coverage is improved, and the water and soil conservation problem, the water resource conservation problem and the like are effectively solved; the final greening rate is also increased; by means of the protection and conservation water resources of water and soil conservation, soil is conserved and improved, carbon is fixed, oxygen is supplied, air is purified, wind breaking and sand stabilizing are achieved, and the diversities of landscapes and ecology are kept.

Description

technical field [0001] The invention relates to a method for improving and restoring the ecological environment, in particular to a method for improving and restoring the ecological environment in areas with severe soil erosion and desertification, and belongs to the fields of ecological slope protection engineering and ecological restoration engineering. Background technique [0002] Ecological mat (ecological blanket), also known as "artificial vegetation" or "ecological vegetation blanket", is a series of environmentally friendly products mainly made of plant fibers such as straw, wheat straw, and palm rest. Soft, breathable and other characteristics. It began to be used abroad in the 1970s, and it has been widely used in sandy soil, hillsides, embankments, roadbed slope protection, soil consolidation, moisture retention, greening, waste mine pits and garbage in the United States, Canada, Japan and European countries. The vegetation restoration project of landfill has be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02E02B3/12
CPCA01B79/02E02B3/122E02B3/125Y02P60/20
Inventor 刘波张旋赵泉胜铁英程宇来
Owner INNER MONGOLIA HESHENG ECOLOGICAL SILVICULTURE CO LTD
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