Fish scale pit and intercepting ditch comprehensive runoff impoundment system and construction method thereof

Abstract

The invention discloses a fish scale pit and intercepting ditch comprehensive runoff impoundment system and a construction method thereof. Fish scale pits are arranged on a mountain along contour lines or close to the contour lines; an intercepting ditch is arranged below the fish scale pits; plants are planted in the fish scale pits; rainwater is collected into underground water collecting poolsby the fish scale pits through water collecting pipes; capillary tubes are further arranged in the water collecting pools; the tops of the capillary tubes are contacted with root systems of the plants; the plurality of water collecting pools communicate with one another through drain pipes; the bottom ends of the drain pipes directly communicate with the intercepting ditch; a flood discharge portis arranged on one end face, close to a natural channel, of the intercepting ditch; and a water baffle capable of automatically opening and closing is arranged on the flood discharge port. According to the fish scale pit and intercepting ditch comprehensive runoff impoundment system and the construction method thereof, during rainfall, the rainwater is collected into the water collecting pools through the water collecting pipes and used for irrigating the plants through the capillary tubes; when the water levels in the water collecting pools reach a certain height, the rainwater is dischargedinto the intercepting ditch through the drain pipes; and after the water level in the intercepting ditch exceeds a safe height, the water baffle automatically opens to discharge the rainwater, so thatthe flood disaster is prevented.

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...

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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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