Self-irrigating self-draining ecological type irrigated area system

Abstract

The invention discloses a self-irrigating self-draining ecological type irrigated area system. The self-irrigating self-draining ecological type irrigated area system structurally comprises a reservoir1, an irrigating main river 2, an irrigating side steam 3, an irrigating lateral canal 4, an irrigating farm ditch 5, a water-draining farm ditch 6, a water-draining lateral canal 7, a water-draining side steam 8, a water-draining main river 9, an ecological protective slope 10, a constructed wetland 11, a flow-splitting ditch 12, a water inlet water gate 16 and a water-draining water gate 17, wherein the reservoir 1 is connected with the irrigating main river 2; the irrigating main river 2 is sequentially connected with the irrigating side steam 3, the irrigating lateral canal 4 and the irrigating farm ditch 5; the irrigating farm ditch 5 is connected with a farm field, a farm field water outlet is sequentially connected with the water-draining farm ditch 6, the water-draining lateral canal 7, the water-draining side steam 8, the flow-splitting ditch 12, the ecological protective slope 10, the water-draining main river 9 and the constructed wetland 11; the constructed wetland 11 is connected into receiving water. The self-irrigating self-draining ecological type irrigated area system has the advantages of being efficient in irrigating, water-saving, effective in controlling surface source pollution, self-irrigating and self-draining, space-saving, and the like.

Description

Technical field [0001] The invention relates to a self-irrigation and self-drainage ecological irrigation area system which can reasonably plan irrigation and drainage channels based on the topographic characteristics of the irrigation area to achieve the purpose of self-irrigation and self-drainage, and at the same time can effectively control farmland non-point source pollution in the irrigation area, belonging to farmland irrigation and farmland non-point source pollution control technology field. Background technique [0002] Most of the existing irrigation facilities in my country were built from the 1950s to the 1970s. Many projects only built canal heads and trunk and branch canals. Channels and buildings below the branch canals were not complete. After long-term use, about 1 / 3 of the engineering and equipment are aging and damaged. Due to the lack of supporting facilities, it is impossible to control water use, and can only be flooded with flooding. Irrigation efficiency...

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Problems solved by technology

[0004] The present invention proposes a self-irrigation and self-drainage ecological irrigation area system. Its purpose is to propose a system based on the problem of serious pollution of farmland areas and farmland non-point source pollution in irrigation areas where the water level of the water source is relatively high and the overall terrain is high on one side and low on the other. The terrain characteristics of the irrigation area, rational planning of irrigation and drainage channels to achieve the goal of self-irrigation and self-drainage in the irrigation area, and at the same time realize the effective control of non-point source pollution in the irrigation area. Self-irrigation and self-drainage ecological irrigation area system construction technology

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