필지단위 관개용수 공급에 따른 농업가뭄진단 평가
Agricultural Drought Assessment and Diagnosis Based on Spatiotemporal Water Supply in Irrigated Area
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Agricultural drought is a natural phenomenon that is not easy to observe and predict and is difficult to quantify. In South Korea, the amount ofagricultural water used is large and the types of use are varied, so even if an agricultural drought occurs due to insufficient precipitation, the droughtactually felt in the irrigated area is it can be temporally and spatially different. In order to interpret the general drought in the past, drought disasterswere evaluated using single indicators such as drought damage area, precipitation shortage status, and drought index, and a comprehensive droughtmanagement system is needed through drought diagnosis survey. Therefore, we intend to conduct research on agricultural drought assessment anddiagnosis using re-evaluation of agricultural facilities and irrigation water supply network due to changes in various conditions such as climate change,irrigation canal network, and evaluation of water supply capacity of agricultural facilities. In this study, agricultural drought diagnosis was conductedon two agricultural reservoirs located in Sangju, Gyeongsangbuk-do, with structural or non-structural evaluations to increase spatiotemporal water supplyand efficiency in terms of water shortages. The results of the agricultural drought diagnosis evaluation can be used to identify irrigated areas and canalnetwork vulnerable to drought and to prioritize drought response.
Abstract
Agricultural drought is a natural phenomenon that is not easy to observe and predict and is difficult to quantify. In South Korea, the amount ofagricultural water used is large and the types of use are varied, so even if an agricultural drought occurs due to insufficient precipitation, the droughtactually felt in the irrigated area is it can be temporally and spatially different. In order to interpret the general drought in the past, drought disasterswere evaluated using single indicators such as drought damage area, precipitation shortage status, and drought index, and a comprehensive droughtmanagement system is needed through drought diagnosis survey. Therefore, we intend to conduct research on agricultural drought assessment anddiagnosis using re-evaluation of agricultural facilities and irrigation water supply network due to changes in various conditions such as climate change,irrigation canal network, and evaluation of water supply capacity of agricultural facilities. In this study, agricultural drought diagnosis was conductedon two agricultural reservoirs located in Sangju, Gyeongsangbuk-do, with structural or non-structural evaluations to increase spatiotemporal water supplyand efficiency in terms of water shortages. The results of the agricultural drought diagnosis evaluation can be used to identify irrigated areas and canalnetwork vulnerable to drought and to prioritize drought response.
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