Time delay method for paddy field rain on-site storage

Abstract

The invention discloses a time delay method for paddy field rain on-site storage. A plurality of water cisterns are embedded below the paddy field earth surface; each water cistern is in a hollow cylindrical structure; the upper end and the lower end of each water cistern are provided with openings; the upper opening of each water cistern is exposed in the air; the inner surface and the lower opening of each water cistern are provided with water-proof films; a semi-closed inner cavity of which the upper end is provided with an opening is formed in each water cistern by the water-proof films; and the upper opening of each water cistern is provided with a stop dog used for reducing the upper opening exposing area of each water cistern in the air. According to the time delay method for the paddy field rain on-site storage, which is disclosed by the invention, the water cisterns are embedded below the paddy field earth surface, rain is directly stored below the earth surface when raining, the rain can be effectively prevented from losing and emitting, and the rain storage time is effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of rainwater storage, and in particular relates to a method for in-situ storage of rainwater in paddy fields for a time delay. Background technique [0002] The water environment of paddy field crops is mainly supplemented by rainwater and irrigation. Rainwater replenishment depends on precipitation, but the time, intensity, and water volume of precipitation vary greatly, which is extremely out of sync with the water demand environment of paddy field crops, which is obviously unreliable. Therefore, crops need to be irrigated to supplement water. However, the irrigation supplement mainly depends on the water stored after the excess precipitation outside the paddy fields flows to the low places. Most of the water flowing to the low places is stored in streams, rivers, rivers, ponds, reservoirs, and lakes. In a dry environment, on the one hand, these water sources are far away from the paddy fields, so it is d...

AI Technical Summary

Problems solved by technology

However, the irrigation supplement mainly depends on the water stored after the excess precipitation outside the paddy fields flows to the low places. Most of the water flowing to the low places is stored in streams, rivers, rivers, ponds, reservoirs, and lakes. In a dry environment, on the one hand, these water sources are far away from the paddy fields, so it is difficult to play a role; on the other hand, the water sources closer to the paddy fields, such as streams and ponds, usually have a large amount of water evaporation. , it is equally difficult to play a role, resulting in paddy field crops neither supplemented by rainwater nor supplemented by irrigation, forming a helpless drought