Treatment method for slowing gully erosion

A gully and ditch head technology, which is applied in the field of buffer ditch erosion control, can solve the problems of high cost and poor treatment effect, and achieve the effects of buffer ditch erosion reduction, reasonable and ingenious design, and strong comprehensiveness

Inactive Publication Date: 2011-08-10
RES INST OF TROPICAL ECO AGRI SCI YUNAN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defects such as poor control effect and high cost in the prior art, which adopts methods such as natural banning and cement engineering measures that prohibit people and animals from ente

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A treatment method for reducing buffer gully erosion, the method is composed of four parts: gully selection, ditch head treatment, ditch bottom treatment and ditch head wall treatment, and its specific steps are as follows:

[0020] 1. The choice of the gully, the slope of the left gully wall of the selected gully is 45° and the height of the gully head wall is 5 meters;

[0021] 2, ditch head control, plant Jatropha curcas and mulberry plants above the ditch head to form a buffer plant hedge strip above the ditch head, the buffer plant hedge strip above the ditch head is an inverted U shape, and the bandwidth of the buffer plant hedge strip is 2 meters, the U-shaped mouth of the inverted U is opposite to the ditch head, the width of the U-shaped mouth of the inverted U is 1.5 meters wider than the width of the ditch head, and the distance between the top of the inverted U-shaped curve and the ditch head The vertical distance is 5 meters, and 5 5-year-old Leucaena trunk...

Embodiment 2

[0025] Embodiment 2 and Embodiment 3 are the same as Embodiment 1 except that the following measures are different, and will not be repeated here.

[0026] Example 2

[0027] 1. The choice of the gully, the slope of the left gully wall and the right gully wall of the gully is 30° and the height of the gully head wall is 4 meters;

[0028] 2. Ditch head control, the width of the buffer plant hedge strip above the inverted U-shaped ditch head is 1.5 meters, and the width of the U-shaped mouth of the inverted U is 1 meter wider than the width of the ditch head, and the inverted U-shaped The vertical distance between the top of the curve and the head of the ditch is 4 meters, and 4 wooden piles are embedded in the inverted U-shaped curved section of the buffer plant hedge strip above the head of the ditch;

[0029] 3, ditch bottom control, the vertical distance between the U-shaped curve bottom of the U-shaped ditch bottom buffer plant hedge strip and the ditch head is 4 meters, ...

Embodiment 3

[0032] 1. The choice of the gully, the slope of the right gully wall of the gully is 25° and the height of the gully head wall is 2 meters;

[0033] 2. Ditch head control, the bandwidth of the buffer plant hedge strip above the inverted U-shaped ditch head is 1 meter, the width of the U-shaped mouth of the inverted U-shaped is equal to the width of the ditch head, and the curve of the inverted U-shaped The vertical distance between the top and the ditch head is 3 meters, and 3 wooden stakes are embedded in the inverted U-shaped curved section of the buffer plant hedge above the ditch head;

[0034] 3. Ditch bottom management, the vertical distance between the bottom of the U-shaped curve of the U-shaped ditch buffer plant hedge strip and the ditch head is 3 meters, and the bandwidth of the ditch bottom buffer plant hedge strip is 2 meters;

[0035] 4. Treatment of the ditch head wall, plant pomegranates and embed 3 wooden stakes on the land between the ditch head and the buffe...

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Abstract

The invention discloses a treatment method for slowing gully erosion, and belongs to the technical field of water and soil conservation. The method comprises four parts, namely gully selection, gully head treatment, gully bottom treatment and gully head wall treatment. In the gully, the slope of the left gully wall or the gully wall is less than or equal to 45 degrees and the height of the gully head wall is less than or equal to 5 meters; jatropha curcas and dodonaea viscose are planted above the gully head to form an inverted U-shaped buffer plant hedge belt above the gully head; timber piles are embedded into the plant hedge belt crookedly; the width of an inverted U-shaped opening is equal to that of the gully head or the width is 1 to 1.5 meters; the top of the inverted U-shaped curve is 3 to 5 meters away from the gully head; leucaena glauca are planted on the gully bottom to form a U-shaped buffer plant hedge belt on the gully bottom; the bottom of the U-shaped curve is 3 to 5 meters away from the gully head; lianas are planted and the timer piles are embedded into the soil between the buffer plant hedge belts above the gully head and the gully bottom; and the two ends of iron wires are respectively fixed to the timber piles at the gully bottom and above the gully head and are attached to the ground surface. In the method, key points of slowing the gully erosion are grasped; and the treatment configuration mode has high comprehensiveness, scientificity and reasonability.

Description

technical field [0001] The invention belongs to the technical field of water and soil conservation, and in particular relates to a control method for reducing gully erosion. Background technique [0002] The dry-hot valley area in China is located at 23°00′-28°10′ north latitude and 98°50′-103°50′ east longitude. Yuanmou dry-hot valley is located in the lower reaches of Jinsha River, which is the upper reaches of the Yangtze River. The environment is extremely fragile, the land is degraded seriously, and a large number of gullies are formed due to the erosion of heavy rain runoff. The gullies are generally composed of ditch head, ditch bottom and ditch wall. Above, the walls on the left and right sides of the gully are called the left gully wall and the right gully wall, and the wall directly below the ditch head connected to the ditch bottom is called the ditch head wall. When the rainwater flows downward, the soil on the gully head wall is first washed away. , Therefore, ...

Claims

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Application Information

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IPC IPC(8): E02B3/04A01G1/00
Inventor 彭辉纪中华潘志贤杨艳鲜岳学文钱坤建方晋奎建蕊方海东沙毓沧李建增袁理春史亮涛龙会英张明忠
Owner RES INST OF TROPICAL ECO AGRI SCI YUNAN ACAD OF AGRI SCI
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