농업용 저수지의 농업가뭄에 대한 기후변화 잠재영향 평가Assessing the Potential Impact of Climate Change on Irrigation by Reservoir
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- Assessing the Potential Impact of Climate Change on Irrigation by Reservoir
- 김수진; 황세운; 배승종; 유승환; 최진용; 장민원
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- Climate change; drought; irrigation reservoir; potential impact
- 한국농공학회논문집, v.63, no.6, pp.141 - 150
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- In order to assess the impact of climate change on irrigation reservoirs, climate exposure (EI), sensitivity (SI), and potential impact (PI) were evaluated for 1,651 reservoirs nationwide. Climate exposure and sensitivity by each reservoir were calculated using data collected from 2011 to 2020 for seven proxy variables (e.g. annual rainfall) and six proxy variables (e.g. irrigation days), respectively. The potential impact was calculated as the weighted sum of climate exposure and sensitivity, and was classified into four levels: ‘Low (PI<0.4)’, ‘Medium (PI<0.6)’, ‘High (PI<0.8)’, and ‘Critical (PI≥0.8)’. The result showed that both the climate exposure index and the sensitivity index were on average high in Daegu and Gyeongbuk with high temperature and low rainfall. About 79.8% of irrigation reservoirs in Daegu, Gyeongbuk, and Ulsan with high climate exposure and sensitivity resulted in a ‘High’ level of potential impact. On the contrary, 64.5% of the study reservoirs in Gyeongnam and Gangwon showed ‘Low’ in potential impact.
In further studies, it is required to reorganize the proxy variables and the weights in accordance with practical alternatives for improving adaptive capacity to drought, and it is expected to contribute to establishing a framework for vulnerability assessment of an irrigation reservoir.
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- 농업생명과학대학 > Department of Agricultural Engineering, GNU > Journal Articles
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