Self-circulated and ecological water saving type irrigating draining system and draining method

Abstract

The invention relates to a self-circulated and ecological water saving type irrigating draining system and a draining method. The system is that an internal and external water control gate 2 is arranged between an outer river 1 and a water accumulating wetland area 3; a water pump station 4 is arranged in the water accumulating wetland area 3; a water draining wetland farm ditch 9 is communicated with the water accumulating wetland area 3; the water pump station 4 is connected with an underground water irrigating pipe 5, wherein the underground water irrigating pipe 5 is connected with a water distribution pond 6; the water distribution pond 6 is connected with a water inlet 8; a water distributing head 7 is arranged on the water inlet 8; the water accumulating wetland area 3 is connected with the water draining wetland farm ditch 9; the water draining wetland farm ditch 9 is connected with a draining rill 10; a ridge 11 is arranged between the water draining wetland farm ditch 9 and a farmland 12. The system has the advantages that the water environment for the crops growing is ensured, the utilization rate of water irrigated to the farmland can be increased, and thus the water resource can be effectively saved, and the crops output can be increased; water can be fully exchanged; the water environment mass of the river can be improved; the construction is simple; the popularization and application are convenient; a large amount of construction works can be saved; the system can be widely applied to the farmland.

Description

Technical field [0001] The invention relates to a self-circulating ecological water-saving irrigation and drainage system and a drainage method, belonging to the fields of farmland water conservancy irrigation and drainage technology, agricultural non-point source control technology and ecological restoration. Background technique [0002] my country is a country with a serious shortage of water resources, and the utilization rate of water resources is also very low. A large part of the reason is the waste of agricultural irrigation water in my country. Agricultural water is a renewable water resource. How to realize the self-recycling of farmland water through the optimal design and scientific layout of the irrigation and drainage system is an important way to solve the shortage of water resources. [0003] In terms of farmland drainage in irrigation areas, agricultural non-point source pollution occurs due to farmland fertilization and pesticide spraying. Agricultural non-point ...

AI Technical Summary

Problems solved by technology

[0004] However, the analysis of farmland irrigation systems at home and abroad shows that irrigation and drainage technologies that achieve self-circulation of farmland water and effective purification of pollutants are still rare.

Especially from the perspective of the system, through the rational construction of irrigation and drainage systems in large-scale irrigation areas, the combination of regional water resources self-circulation system and drainage system for wetland purification has not yet been seen.

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