Building method for farmland ecological drainage ditch preventing ditch wall soil loss

Abstract

The invention discloses a building method for a farmland ecological drainage ditch preventing the ditch wall soil loss. By performing preliminary processing on an original drainage ditch, a water collecting well is arranged at the joint of a farmland drainage port and the ecological drainage ditch, and after being subjected to preliminary precipitation in the water collecting well, farmland runoff enters the ecological drainage ditch through a water outflow weir; on the basis of solidifying of holes reserved in the ditch bottom of the ecological drainage ditch and ditch wall sloping treatment, the ditch wall of the ecological drainage ditch is subjected to strengthening treatment by means of porous ecological drainage ditch side plates, and purifying plants are planted in vegetation planting holes reserved in the side slope and the bottom of the ecological drainage ditch; and finally, a water baffle is arranged on a drainage port of the ecological drainage ditch, and the farmland rainfall runoff is purified by the ecological drainage ditch and then enters a river. The building method for the farmland ecological drainage ditch preventing the ditch wall soil loss has the beneficial effects of being easy, convenient and practicable, capable of preventing the ditch wall soil loss, stable in structure, good in purifying effect, good in landscape effect and the like.

Description

technical field [0001] The invention relates to a technology in the field of environmental protection, in particular to a method for constructing a farmland ecological drainage ditch for preventing and controlling non-point source pollution in agriculture and preventing soil loss from ditch walls. Background technique [0002] Farmland drainage ditches are waterways located on both sides of roads or in fields for farmland drainage (flood discharge). Drainage ditch is a semi-natural wetland ecosystem under the influence of human activities, which has an important impact on agricultural production and ecological environment, and is a common landscape element in agricultural areas. The irrigation and drainage function of ditches is an important guarantee for agricultural production and ecological security. It is one of the effective ways of non-point source pollution of farmland. [0003] The research related to farmland drainage ditches at home and abroad is in the developin...

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Problems solved by technology

[0005] Aiming at the defects of the prior art, such as unstable structure, short service life, easy loss of ditch wall soil, easy siltation of ditch, inconvenient maintenance and management, etc., the present invention proposes a farmland ecological drainage ditch construction method to prevent ditch wall soil loss, which is simple and practical , stable structure, avoiding soil loss on the ditch wall, good purification effect on farmland runoff pollutants and good landscape effects, etc.

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