Rain collection self-pressure irrigation system for loess plateau hilly area step greenhouses

Abstract

The invention relates to a rain collection self-pressure irrigation system for loess plateau hilly area step greenhouses, which comprises greenhouses, ground water collection surfaces, water collection flow gathering ditches, water reservoirs and irrigation pipelines, wherein the greenhouses are arranged on the steps of a terraced field, the ground water collection surfaces, the water collection flow gathering ditches, the water reservoirs and the irrigation pipelines are arranged on the steps, the greenhouses comprise greenhouse ceiling water collection surfaces, the water collection flow gathering ditches are arranged along the lower edges of the greenhouse ceiling water collection surfaces, the ground water collection surfaces are in inclined arrangement, the lower sides of the ground water collection surfaces are connected with the collection flow gathering ditches, one sides or two sides of the water collection flow gathering ditches are provided with the water reservoirs, and the irrigation pipelines are arranged in the greenhouses and are connected with the water reservoirs of the previous steps through main pipelines. The greenhouses are built on the terraced field, the collected rain at the previous step of the terraced field is used for irrigating the greenhouse on the next step of the terraced field, the rain resources are sufficiently and reasonably developed and utilized for developing the facility agriculture, and the ecological system is prompted to be converted to the benign circulation.

Description

Technical field [0001] The invention belongs to the technical field of rainwater collection and utilization, and particularly relates to a rain-collecting self-pressure irrigation system for cascade greenhouses in hilly areas of the Loess Plateau. Background technique [0002] In the hilly and gully areas of the Loess Plateau in Northwest my country, water resources are scarce, and the problem of regional seasonal drought and water shortage is serious. The annual average rainfall in the hilly and gully areas of the northern Loess Plateau and the arid and water-deficient mountainous areas is only 250-600mm, and more than 60% is concentrated in July to September, which is seriously misaligned with the crop water demand period. Due to the special climate, geology and soil conditions, the surface and ground water resources in the region are very scarce, and the per capita water resources are only 200-500m 3 , Is the region with the lowest per capita water resources in the country. T...

AI Technical Summary

Problems solved by technology

Although this patent solves the problem of water collection cellars collecting rainwater to irrigate crops; however, the use of this technology in the hilly areas of the Loess Plateau cannot fully and rationally develop and utilize rainwater resources, nor can it effectively solve problems such as drought and soil erosion.

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