밭작물 가뭄피해 경감을 위한 소류천 유출수 저수 시스템 개발
Development of a Long-slope Water Harvesting System in Natural Channel for Drought Mitigation in Upland
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초록
This study developed a rainwater harvesting system for the irrigation of upland on sloping area. The assessment of water supply capacity was evaluatedin farm field experience. This system consists of a water catchment device and a collapsible storage tank. The water catchment device was designedto collect runoff water in natural channel of 500 mm width into a pipe of 50 mm inner diameter. The device has funnel-shaped plan and cross-sectionof square. The storage capacity of the collapsible water tank was caculated to meet the water demand for irrigation in 30 a cultivated land for 10-yearfrequancy drought. The tank has a cuboid shape with a capacity of 30 m3, 5 m in width and length, 1.2 m in height. This system can supply 92%of the water required for drop irrigation of red pepper and 88% of the water required for drop irrigation of onions in 30 a cultivation land duringthe month of May and June. In the case of 16-dry days of 10-years frequency, this system is capable to irrigate 100% of required water for red pepperand onion, 76.7% of required water for Omija (Schisandra chinensis), and 51.5% of required water for autumn kimchi cabbage.
Abstract
This study developed a rainwater harvesting system for the irrigation of upland on sloping area. The assessment of water supply capacity was evaluatedin farm field experience. This system consists of a water catchment device and a collapsible storage tank. The water catchment device was designedto collect runoff water in natural channel of 500 mm width into a pipe of 50 mm inner diameter. The device has funnel-shaped plan and cross-sectionof square. The storage capacity of the collapsible water tank was caculated to meet the water demand for irrigation in 30 a cultivated land for 10-yearfrequancy drought. The tank has a cuboid shape with a capacity of 30 m3, 5 m in width and length, 1.2 m in height. This system can supply 92%of the water required for drop irrigation of red pepper and 88% of the water required for drop irrigation of onions in 30 a cultivation land duringthe month of May and June. In the case of 16-dry days of 10-years frequency, this system is capable to irrigate 100% of required water for red pepperand onion, 76.7% of required water for Omija (Schisandra chinensis), and 51.5% of required water for autumn kimchi cabbage.
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