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2025 Vol.58, Issue 11 Preview Page

Research Article

Assessment of flood risk in agricultural land under extreme rainfall events

극한강우 발생시 농경지 홍수 위험도 평가

Chaulagain Deepaka
,
Hammed Akinsoji Adisab
,
Kyung Sook Choic*
디팍 차우라가인a
,
아디사 하메드 아킨소지b
,
최 경숙c*
aPost-doctoral Researcher, Institute of Agricultural Science & Technology, Kyungpook National University, Daegu, Korea
bPh. D Candidate, Department of Agricultural Civil Engineering, Kyungpook National University, Daegu, Korea
cProfessor, Department of Agricultural Civil Engineering, Kyungpook National University, Daegu, Korea
a경북대학교 농업토목공학과 박사후연구원
b경북대학교 농업토목공학과 박사과정
c경북대학교 농업토목공학과 교수
*Corresponding Author
30 November 2025. pp. 1085-1098
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Abstract

Climate change has increased the frequency and intensity of extreme rainfall, resulting in recurrent agricultural flooding. This study evaluates flood-prone agricultural zones in South Chungcheong Province by applying rainfall return period analysis and probable maximum precipitation (PMP) to assess the impact of inadequate drainage capacity. The results indicate that northern areas such as Asan and Cheonan, and southern and southwestern regions including Boryeong, Seocheon, Buyeo, and Hongseong, are highly vulnerable to extreme rainfall. The PMP analysis further identifies Boryeong, Seocheon, Buyeo, and Cheongyang as critical hotspots of flood risk associated with extreme rainfall in South Chungcheong Province. Approximately 23% of the agricultural land falls within the very high and 16% within the high flood-risk category, with paddy fields being the most vulnerable, followed by upland croplands and mixed vegetation. These findings provide practical insights for improving drainage infrastructure and developing adaptive strategies to ensure agricultural resilience under changing climate conditions.

Keywords
Climate change
Extreme rainfall
Flood vulnerability
Probable maximum precipitation
Drainage system
South Chungcheong Province

최근 기후변화로 인한 극한강우의 빈도와 강도가 증가하면서 농경지 홍수 재해가 반복적으로 발생하고 있다. 본 연구는 강우 재현기간 및 최대가능강수량(PMP) 분석을 기반으로 충청남도 농경지 지역의 배수능력 부족으로 야기되는 농경지 침수가능 취약지역을 평가하였다. 그 결과, 아산과 천안지역을 포함한 충남 북부 지역과 보령, 서천, 부여, 홍성지역을 포함한 충남 남부 및 남서부 지역이 극한 강우에 매우 취약한 것으로 평가되었다. PMP 분석을 통해, 충남지역 극한강우 발생시 보령, 서천, 부여, 청양지역이 특히 홍수재해 발생 위험이 매우 높은 지역으로 확인되었다. 농경지 홍수위험 등급 분석에서는 전체 농경지의 약 23%가 매우 높은 위험 등급, 16%가 높은 위험 등급에 각각 속하는 것으로 나타났다. 또한 농경지 유형 중에서 논이 가장 홍수에 취약한 것으로 평가되었으며, 그 다음으로 밭, 혼합 초지 순으로 홍수에 취약한 것으로 나타났다. 본 연구 결과는 농경지 배수시설의 개선과 농업분야 기후변화 적응전략 수립에 실질적인 시사점을 제공할 것으로 사료된다.

키워드
기후변화
극한강우
홍수 취약성
최대가능강수량(PMP)
배수체계
충청남도
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Information
  • Publisher :KOREA WATER RESOURECES ASSOCIATION
  • Publisher(Ko) :한국수자원학회
  • Journal Title :Journal of Korea Water Resources Association
  • Journal Title(Ko) :한국수자원학회 논문집
  • Volume : 58
  • No :11
  • Pages :1085-1098
  • Received Date : 2025-10-15
  • Revised Date : 2025-11-09
  • Accepted Date : 2025-11-11
  • DOI :https://doi.org/10.3741/JKWRA.2025.58.11.1085
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