Compound check dam water and soil conservation method

Abstract

The invention provides a compound check dam water and soil conservation method, and relates to the check dam water and soil conservation method. The invention aims to overcome different exposed disadvantages of an existing uni-structure check dam in controlling an eroded gully channel. The method comprises the steps that a plurality of stone check dams are laid along the eroded gully channel, andin half a year after the stone check dams are built, a willow check dam is laid on the upper stream of each stone check dam in the first spring or autumn. According to the compound check dam water andsoil conservation method, provided by the invention, the stone check dams and the plant check dams are combined organically; the stone check dams are on the down stream, and the plant check dams areon the upper stream; in half a year after the construction of the stone check dams, an upper stream section is silted into a siltation area by silt carried by runoff, and warp soil in the siltation area is fertile, is suitable for plant growth, is beneficial to the survival of the plant check dams, and improves preserving rate of the plant check dams; a revegetation problem in controlling the eroded gully channel is solved, and at the same time, the impact resistance of the downstream stone check dams can be relieved; and the water damage rate of the stone check dams is lowered. The compound check dam water and soil conservation method provided by the invention is suitable for water and soil erosion control of the eroded gully channels with serious water and soil loss in rolling hilly areas, low mountain and hill areas and the like.

Description

technical field [0001] The invention belongs to the technical field of agricultural production, and in particular relates to a compound water and soil conservation method for grain workshops. Background technique [0002] Soil erosion is one of the major disasters in the world. It destroys land resources, causes productivity decline and siltation; consumes limited water resources, causes disasters such as drought and flood, causes deterioration of ecological environment, and seriously threatens human survival and development. issues of general concern. The problem of soil erosion exists to varying degrees in both developing and developed countries, and it tends to continue to deteriorate. According to the estimates of the Food and Agriculture Organization of the United Nations, the area of ​​land with soil erosion in the world is as high as 25 million square kilometers. 2 , accounts for 16.7% of the total land area, and loses 26 billion tons of soil every year. The area o...

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Problems solved by technology

[0009] The present invention is to solve the different drawbacks of the existing single-structure valley square to control the erosion ditch exposure. The stone valley square prevents the bottom of the ditch from being further cut down and stabilizes the ditch bank, but the fundamental problem of restoring vegetation has not been solved; the plant valley square grows To solve the technical problems of poor soil texture, low survival rate, and poor stability, and provide a composite water and soil conservation method for grain farms

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