Rain flood resource utilization device for field greenhouse area in northern area and construction method

Abstract

The invention discloses a rain flood resource utilization device for a field greenhouse area in the northern area and a construction method. The problem that in the prior art, the surface runoff in the northern area is large is solved, and the device has the advantages of achieving rainwater collection, storage and utilization and effectively saving water. According to the specific scheme, the rain flood resource utilization device for the field greenhouse area in the northern area comprises a rainwater collection unit, a purification unit, a water storage unit and a utilization unit, whereinthe rainwater collection unit is arranged on the side portion of the bottom of a field greenhouse, the top of the rainwater collection unit is lower than the ground surface around the greenhouse, therainwater collection unit is arranged in the length direction of the greenhouse to collect the surface runoff generated by rainfall around the greenhouse and rainwater sliding down from the greenhouse, the rainwater collection unit comprises a plurality of longitudinally-arranged water collection grooves, the adjacent water collection grooves communicate with each other, and the size of the top ofthe rainwater collection unit is larger than that of the bottom of the rainwater collection unit; the purification unit comprises a plurality of filtering layers, and the filtering layers are arranged on the tops of the water collection grooves respectively; the water collection groove in the bottommost layer communicates with the water storage unit; and the utilization unit communicates with thewater storage unit to supply water to the field greenhouse.

Description

Background technique [0001] Due to the cold winter in the north, it is not easy to grow vegetable crops, so greenhouses have been developed to plant off-season vegetables and increase farmers' own income. At present, the northern region has developed into contiguous and large-scale greenhouse areas. The northern greenhouses are generally planted in spring, autumn and winter. In order to save investment in repeated construction and carry out pest control, the plastic film of the greenhouses is generally not removed in summer (flood season). , use the high temperature in the greenhouse in summer to kill bacteria and pests in the soil (commonly known as "stuffy shed"), which has caused a significant increase in surface runoff in the flood season in the contiguous greenhouse area, increased flood control pressure, and rainwater cannot be fully utilized. On the other hand The confluence of rainwater has led to less groundwater replenishment in this area, while the groundwater table...

AI Technical Summary

Problems solved by technology

For example, in Weifang, Shandong, there are a large number of vegetable greenhouses and melon and fruit greenhouses in the field, and most of the greenhouses have a rainwater collection area greater than 1000m 2 , when the amount of rainfall is large, it is easy to cause confluence, resulting in large surface runoff

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