Ecological management method for erosion gully in high and cold wet steppe area

Abstract

The invention discloses an ecological management method for an eroded gully in a high and cold wet steppe area, which comprises the following steps: firstly, cleaning sundries in the eroded gully, and then performing slope cutting treatment on the gully bottom and gully slope of the eroded gully; pine piles or gabion protection feet are arranged at the bottom of a ditch slope of the erosion ditch; gabion check dams and / or raft pile dams are arranged in the extending direction of the channel of the erosion gully at intervals; vegetation is planted on a ditch slope of the erosion ditch, and an ecological intercepting ditch is formed in the top of the ditch slope; the comprehensive protection system is constructed through the measures of the channel stepped gabion check dam, the log raft piles, the channel slope stabilizing structure, the ecological revetment, soil protection, vegetation recovery and the like, extension and expansion of the erosion gabion are prevented, the stable state of the gabion bank is kept, ecological balance is promoted through vegetation recovery, the anti-scouring, stability and ecological function of the erosion gabion bank are enhanced, and the ecological protection effect of the erosion gabion bank is improved. The problems existing in the prior art are solved, and the purpose of long-term effective ecological treatment of the erosion gully is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of gully erosion control, and in particular to an ecological control method for gullies in alpine and humid grassland areas. Background Art

[0002] The alpine humid grassland area has the characteristics of changeable climate, concentrated rainfall, single vegetation type, easy soil loss and frequent disturbance of animal husbandry activities. The superposition of topography, soil, rainfall, human factors and other factors has led to the development of grassland erosion gullies and serious soil and water loss problems. The formation of erosion gullies has caused great damage to the grassland ecosystem. If not timely controlled, it will cause continuous soil and water loss and grassland ecological damage, seriously threatening the local ecological environment, animal husbandry production and ecosystem security.

[0003] Gully control is a key link in soil and water conservation in grassland areas. Traditional gully control models and bank protection methods often only focus on flood control and water conservancy functions, mostly using concrete and mortar masonry paving, ignoring the ecological functions and environmental factors of soil and water conservation. There are problems such as mainly using rigid materials, difficulty in obtaining materials, high construction costs, and poor ecological effects, which lead to the failure of natural gullies to integrate with grassland ecosystems and the uncoordinated ecosystem.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an ecological management method for gullies in alpine and humid grassland areas. The ecological management method of the present invention can not only protect the slope stability of the gullies, but also restore and maintain the grassland ecosystem. It has both soil and water conservation and ecological restoration functions, and realizes effective management and ecological restoration of gullies.

[0006] In order to achieve the above-mentioned purpose of the present invention, the following technical solutions are particularly adopted:

[0007] A first aspect of the present invention provides an ecological management method for erosion gullies in alpine and humid grassland areas, the ecological management method comprising the following steps:

[0008] (a) First, clear the debris in the erosion gully, and then cut the bottom and slope of the erosion gully;

[0009] (b) Install pinewood piles or gabion cages at the bottom of the gully slope;

[0010] (c) Install gabion gabions and / or timber pile dams at intervals along the gully extension direction;

[0011] (d) Plant vegetation on the slopes of erosion gullies and set up ecological intercepting ditches at the top of the slopes.

[0012] Preferably, in step (b), geotextile is laid on the side of the pine piles or gabion stone cage foot guards close to the ditch slope.

[0013] Preferably, the step (b) further comprises laying gravel and soil matrix on the ditch slope.

[0014] Preferably, in step (c), the gabion cage is stepped.

[0015] Preferably, in step (c), the spacing distance is 15-30 m.

[0016] Preferably, in step (c), the height of the gabion gabion dam and / or the timber pile dam is 1-2 m.

[0017] Preferably, in the step (d), planting vegetation on the slope of the erosion gully is laying turf on the slope of the erosion gully.

[0018] Preferably, in the step (d), planting vegetation on the gully slope of the erosion gully is performed by laying turf and eco-bags on the gully slope of the erosion gully; and geotextile is laid at the bottom of the eco-bag.

[0019] Preferably, in the step (d), planting vegetation on the slope of the gully includes planting herbaceous plants and woody plants on the slope of the gully.

[0020] Preferably, the ecological management method further comprises setting a gabion retaining wall above the pine piles or gabion foot guards at the corners of the erosion gully.

[0021] Compared with the prior art, the beneficial effects of the present invention include at least:

[0022] The ecological control method for erosion gullies in alpine humid grassland areas of the present invention constructs a comprehensive protection system through measures such as ditch stepped gabion stone cage valleys + wooden piles, ditch slope stabilization structure, ecological bank protection, soil protection, and vegetation restoration to prevent the extension and expansion of erosion gullies and maintain the stability of river banks. Vegetation restoration is used to promote ecological balance, enhance the anti-scouring, stability and ecological function of erosion gullies, so as to solve the problems existing in the prior art and achieve the purpose of long-term and effective control of erosion gullies. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0024] Figure 1 It is a schematic diagram of the structure of the erosion ditch in the embodiment of the present invention;

[0025] Figure 2 for Figure 1 Schematic diagram of the cross-section structure along AA;

[0026] Figure 3 It is a schematic diagram of the ditch slope structure with gabion stone cage foot protection in Example 1 of the present invention;

[0027] Figure 4 Schematic diagram of the ditch slope structure with pine piles in Example 2 of the present invention.

[0028] In the attached figure, 1-erosion ditch, 11-ditch bottom, 12-ditch slope, 13-gabion stone cage foot guard, 14-geotextile, 15-gravel, 16-soil matrix, 17-gabion stone cage valley, 18-wood raft pile dam, 19-turf, 20-ecological bag, 21-shrubs, 22-ecological intercepting ditch, 23-pine piles. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0030] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0031] The embodiment of the present invention provides an ecological management method for gullies in alpine and humid grassland areas, and the ecological management method comprises the following steps:

[0032] (a) First, clear the debris in the erosion gully, and then cut the bottom and slope of the erosion gully;

[0033] (b) Install pinewood piles or gabion cages at the bottom of the gully slope;

[0034] (c) Install gabion gabions and / or timber pile dams at intervals along the gully extension direction;

[0035] (d) Plant vegetation on the slopes of erosion gullies and set up ecological intercepting ditches at the top of the slopes.

[0036] The ecological control method for erosion gullies in alpine humid grassland areas of the present invention constructs a comprehensive protection system through measures such as ditch stepped gabion stone cage valleys + wooden piles, ditch slope stabilization structure, ecological bank protection, soil protection, and vegetation restoration to prevent the extension and expansion of erosion gullies and maintain the stability of river banks. Vegetation restoration is used to promote ecological balance, enhance the anti-scouring, stability and ecological function of erosion gullies and banks, so as to solve the problems existing in the prior art and achieve the purpose of long-term and effective control of erosion gullies. In addition, the setting of ecological intercepting ditches can intercept water from the top of the ditch slope and reduce water erosion and scouring on the slope surface.

[0037] In one embodiment, in step (b), a geotextile is laid on the side of the pine pile or gabion stone cage foot guard close to the ditch slope.

[0038] The installation of geotextiles can prevent water penetration and improve anti-scouring ability.

[0039] In one embodiment, the step (b) further comprises laying gravel and soil matrix on the ditch slope. By laying gravel and soil matrix on the ditch slope, the anti-scouring performance is improved, and the growth of vegetation is promoted to achieve vegetation coverage, thereby effectively preventing erosion expansion and soil and water loss, and better protecting grassland and land resources.

[0040] In one embodiment, in step (c), the gabion cage is stepped. The step-shaped gabion cage can improve its stability; in addition, step-shaped gabion cages or wooden pile dams are established at intervals in the erosion gully, which can forcibly lock the gully head, stabilize the gully bank, and raise the gully erosion base level.

[0041] In one embodiment, in the step (c), the spacing distance may be any value between 15 and 30 m.

[0042] In one embodiment, in step (c), the height of the gabion gabion dam and / or the timber pile dam can be any value between 1 and 2 m.

[0043] In one embodiment, in step (d), planting vegetation on the slope of the erosion gully is laying turf on the slope of the erosion gully. By laying turf, a vegetation cover layer is formed to prevent erosion and expansion, and better protect grassland and land resources.

[0044] In one embodiment, in the step (d), planting vegetation on the slope of the erosion gully is performed by laying turf and eco-bags on the slope of the erosion gully; and geotextile is laid at the bottom of the eco-bags.

[0045] In one embodiment, in step (d), planting vegetation on the gully slope of the erosion gully includes planting herbaceous plants and woody plants on the gully slope of the erosion gully. Constructing a multi-layered vegetation system at different locations of the gully slope of the erosion gully can better improve the anti-scour performance of the gully slope.

[0046] In one embodiment, the ecological management method further comprises setting a gabion retaining wall above the pinewood piles or gabion gabion foot guards at the corners of the erosion gully. The anti-scouring and anti-slip capabilities of the structure are further enhanced by setting the gabion retaining wall.

[0047] The technical solution of the present invention is further described in detail below through specific embodiments.

[0048] Example 1

[0049] This embodiment is an ecological management method for erosion gullies in alpine and humid grassland areas. Figures 1 to 3 As shown, the ecological governance method includes the following steps:

[0050] (a) firstly, the debris in the erosion gully 1 is cleaned, and then the gully bottom 11 and the gully slope 12 of the erosion gully 1 are cut;

[0051] (b) a gabion cage foot guard 13 is arranged at the bottom of the gully slope 12 of the erosion gully 1, and a geotextile 14 is laid on the side of the gabion cage foot guard 13 close to the gully slope; crushed stone 15 and soil matrix 16 are laid on the gully slope 12;

[0052] (c) Stepped gabion gabions 17 and wooden pile dams 18 are arranged at intervals of 20 m in the extending direction of the erosion gully 1. The height of the gabion gabions 17 and wooden pile dams 18 is 1.5 m;

[0053] (d) Turf 19 and eco-bags 20 are laid on the gully slope 12 of the erosion gully 1 and shrubs 21 are planted; geotextile 14 is laid at the bottom of the eco-bag 20, and an ecological intercepting ditch 22 is set at the top of the gully slope 12.

[0054] Example 2

[0055] This embodiment is an ecological management method for erosion gullies in alpine and humid grassland areas. Figure 1~2 As shown in , 4, the ecological governance method includes the following steps:

[0056] (a) firstly, the debris in the erosion gully 1 is cleaned, and then the gully bottom 11 and the gully slope 12 of the erosion gully 1 are cut;

[0057] (b) pine piles 23 are arranged at the bottom of the gully slope 12 of the erosion gully 1, and a geotextile is laid on one side of the pine piles 23 close to the gully slope (not shown);

[0058] (c) Stepped gabion gabions 17 and wooden pile dams 18 are arranged at intervals of 20 m in the extending direction of the erosion gully 1. The height of the gabion gabions 17 and wooden pile dams 18 is 1.5 m;

[0059] (d) Turf 19 and eco-bags 20 are laid on the gully slope 12 of the erosion gully 1 and shrubs 21 are planted; geotextile 14 is laid at the bottom of the eco-bag 20, and an ecological intercepting ditch 22 is set at the top of the gully slope 12.

[0060] The ecological control method for gullies in alpine and humid grassland areas of the above-mentioned embodiment of the present invention constructs a comprehensive protection system through measures such as ditch stepped gabion stone cage valleys + wooden piles, ditch slope stabilization structure, ecological bank protection, soil protection, and vegetation restoration to prevent the extension and expansion of gullies and maintain the stability of river banks. Vegetation restoration is used to promote ecological balance, enhance the erosion resistance, stability and ecological function of the gully banks, so as to solve the problems existing in the prior art and achieve the purpose of long-term and effective control of gullies.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An ecological management method for gullies in alpine and humid grasslands, characterized in that: The ecological governance method comprises the following steps: (a) First, clear the debris in the erosion gully, and then cut the bottom and slope of the erosion gully; (b) Install pinewood piles or gabion cages at the bottom of the gully slope; (c) Install gabion gabions and / or timber pile dams at intervals along the gully extension direction; (d) Plant vegetation on the slopes of erosion gullies and set up ecological intercepting ditches at the top of the slopes.

2. The ecological management method according to claim 1, characterized in that: In the step (b), geotextile is laid on one side of the pine pile or gabion stone cage foot guard close to the ditch slope.

3. The ecological management method according to claim 1, characterized in that: The step (b) also includes laying gravel and soil matrix on the ditch slope.

4. The ecological management method according to claim 1, characterized in that: In the step (c), the gabion stone cage is in a stepped shape.

5. The ecological management method according to claim 1, characterized in that: In the step (c), the spacing distance is 15 to 30 m.

6. The ecological management method according to claim 1, characterized in that: In the step (c), the height of the gabion gabion dam and / or the timber pile dam is 1-2 m.

7. The ecological management method according to claim 1, characterized in that: In the step (d), planting vegetation on the slope of the erosion gully is laying turf on the slope of the erosion gully.

8. The ecological management method according to claim 1, characterized in that: In the step (d), planting vegetation on the slope of the erosion gully is performed by laying turf and eco-bags on the slope of the erosion gully; and geotextile is laid at the bottom of the eco-bag.

9. The ecological management method according to claim 1, characterized in that: In the step (d), planting vegetation on the slope of the gully includes planting herbaceous plants and woody plants on the slope of the gully.

10. The ecological management method according to claim 1, characterized in that: The ecological management method also includes setting a gabion stone cage retaining wall above the pine wood piles or gabion stone cage foot guards at the corners of the erosion gully.

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