Treatment method for slowing gully erosion

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, ...

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 entering the gully area, and its purpose is to provide a kind of anti-corrosion method for reducing gully erosion. To reduce gully water and soil loss, protect the cultivated land and rivers below the gully, and at the same time promote the soil restoration of the gully itself