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논문 기본 정보

자료유형
학술저널
저자정보
전민기 (한경대학교) 남원호 (한경대학교) 양미혜 (한경대학교) 문영식 (한경대학교) 홍은미 (강원대학교) 옥정훈 (국립농업과학원) 황선아 (국립농업과학원) 허승오 (국립농업과학원)
저널정보
한국농공학회 한국농공학회논문집 한국농공학회논문집 제63권 제5호
발행연도
2021.9
수록면
1 - 11 (11page)
DOI
https://doi.org/10.5389/KSAE.2021.63.5.001

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Soil moisture plays a critical role in hydrological processes, land-atmosphere interactions and climate variability. It can limit vegetation growth as well as infiltration of rainfall and therefore very important for agriculture sector and food protection. Recently, due to the increased damage from drought caused by climate change, there is a frequent occurrence of shortage of agricultural water, making it difficult to supply and manage stable agricultural water. Efficient water management is necessary to reduce drought damage, and soil moisture management is important in case of upland crops. In this study, soil moisture was calculated based on the water balance model, and the suitability of soil moisture data was verified through the application. The regional soil moisture was calculated based on the meteorological data collected by the meteorological station, and applied the Runs theory. We analyzed the spatiotemporal variability of soil moisture and drought impacts, and analyzed the correlation between actual drought impacts and drought damage through correlation analysis of Standardized Precipitation Index (SPI). The soil moisture steadily decreased and increased until the rainy season, while the drought size steadily increased and decreased until the rainy season. The regional magnitude of the drought was large in Gyeonggi-do and Gyeongsang-do, and in winter, severe drought occurred in areas of Gangwon-do. As a result of comparative analysis with actual drought events, it was confirmed that there is a high correlation with SPI by each time scale drought events with a correlation coefficient.

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