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2021 Vol.63, Issue 6 Preview Page
Assessing the Potential Impact of Climate Change on Irrigation by Reservoir

농업용 저수지의 농업가뭄에 대한 기후변화 잠재영향 평가

Soo-Jin Kima
,
Syewoon Hwangb
,
Seung-Jong Baec
,
Seunghwan Yood
,
Jin-Yong Choie
,
Min-Won Jangb†
김 수진a
,
황 세운b
,
배 승종c
,
유 승환d
,
최 진용e
,
장 민원b†
aResearcher, Institute of Green Bio Science and Technology, Seoul National University
bAssociate Professor, Department of Agricultural Engineering & Institute of Agricultural and Life Science, Gyeongsang National University
cResearch Professor, Institute of Green Bio Science and Technology, Seoul National University
dAssociate Professor, Department of Rural and Bio-Systems Engineering, Chonnam National University
eProfessor, Department of Rural Systems Engineering & Institute of GBST, Seoul National University
a서울대학교 녹색생물과학기술연구소 연구원
b경상대학교 농업공학과 및 농업생명과학연구소 부교수
c서울대학교 녹색생물과학기술연구소 연구교수
d전남대학교 농촌생명공학과 부교수
e서울대학교 농촌시스템공학과와 GBST연구소 교수
† Corresponding author Tel.: +82-55-772-1933, Fax: +82-55-772-1939 E-mail: mwjang@gnu.ac.kr
2021. pp. 141-150
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Abstract

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.

Keywords
Climate change
drought
irrigation reservoir
potential impact
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Information
  • Publisher :The Korean Society of Agricultural Engineers
  • Publisher(Ko) :한국농공학회
  • Journal Title :Journal of Korean Society of Agricultural Engineers
  • Journal Title(Ko) :한국농공학회논문집
  • Volume : 63
  • No :6
  • Pages :141-150
  • Received Date : 2021-10-24
  • Revised Date : 2021-11-08
  • Accepted Date : 2021-11-18
  • DOI :https://doi.org/10.5389/KSAE.2021.63.6.141
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