A comprehensive runoff storage system of fish scale pit and intercepting ditch and its construction method

Abstract

The invention discloses a fish scale pit and intercepting ditch comprehensive runoff storage system and a construction method thereof. A fish scale pit is arranged on a mountain body along a contour line or close to the contour line, and an intercepting ditch is arranged below the fish scale pit. Plants are planted in the fish scale pit, and the fish scale pit collects rainwater into the underground sump through the water collection pipe, and the capillary is also provided in the sump, and the top of the capillary is in contact with the root system of the plant; The sump is connected through a drainage pipe, and the bottom of the drainage pipe is directly connected with the intercepting ditch; the end of the intercepting ditch close to the natural channel is provided with a flood outlet, and the flood outlet is provided with a water retaining valve that can be opened and closed automatically. plate. When it rains, the rainwater is collected into the sump through the water collection pipe and used to water the plants through the capillary; when the water level in the sump reaches a certain height, it is discharged into the intercepting ditch through the drain pipe, and when the water level in the intercepting ditch exceeds the safe height, The water baffle is automatically opened to drain water and prevent floods from happening.

Description

technical field [0001] The invention relates to the field of slope protection, in particular to a fish scale pit and intercepting ditch integrated runoff storage system and a construction method thereof. Background technique [0002] Due to the limitation of natural conditions and the result of human activities for a long time, the slopes in many parts of our country have been drought for many years, the plants are difficult to grow, and the soil erosion is serious. At present, the main way to solve the soil erosion is afforestation, but in arid areas, especially mountain In areas such as hills, the biggest problem facing afforestation is that there is not much groundwater in such places, which seriously affects the healthy growth of trees and has a high mortality rate; with the death of trees, the vegetation coverage of the entire mountain slope is very low. When it rains, it is very easy to cause soil erosion, and when it is serious, it will cause natural disasters such as...

AI Technical Summary

Problems solved by technology

[0004] Soil erosion comes from rainfall and runoff. Therefore, if the generation of rainfall runoff can be effectively controlled, soil erosion can be effectively controlled. At the same time, most of the rainwater resources are lost in the form of runoff and evaporation, which is a great waste of water. resource

[0005] In the existing mountainous and hilly areas, affected by the terrain, the cost of laying irrigation equipment for afforestation is relatively high, and the traditional ground irrigation method is to infiltrate the root zone soil from the ground. The resulting irrigation water loss is serious. On the other hand, due to the small amount of irrigation water, the water content of the soil layer near the surface is often large, which will induce the tree roots to concentrate in the surface soil layer near the surface, weakening the ability of trees to resist drought, and must be maintained for a long time. Irrigation; in addition, due to the slowness of soil moisture redistribution, the root system in the middle and deep soil layers obtains water slowly, and the amount of water is small

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