농업용 지하수의 실제 이용량 특성 = Characteristics of the Actual use of Agricultural Groundwater

다국어 초록 (Multilingual Abstract)

Accurate assessment of agricultural groundwater usage is an essential task to cope with drought that occurs irregularly in time and location. In this study, the agricultural groundwater usage was calculated in nationwide public wells (1,386 bedrock wells) during 5-year period (2010-2014) by using electric power consumption and well specification data. National average of agricultural groundwater usage per each well was estimated as $66.2m^3/day$, corresponding to 21.6% of total permitted volume of groundwater in each well. Chungcheong Nam-do had the highest usage with 38-55.6%. The value increased to 58.1% when the total permitted volume was based upon the supply standard against drought, and the value reached 100% in Chungcheong Nam-do. In Ganghwa distirct that suffered from severe drought in recent years, the average groundwater usage was 61.4%. In 2014, when the drought was the most severe with 45% precipitation of the average annual rainfall, the nationwide usage was turned out to be 25.6%, indicating about 4% higher than average agricultural groundwater usage 21.6%. Therefore, the quantitative assessment of groundwater usage in this study signifies that adequate use of groundwater is crucial to cope with agricultural drought.

참고문헌 (Reference)

1 김지욱, "실측 자료에 기반한 우리나라 지하수의 용도별 이용량 추정 방법" 대한지질공학회 23 (23): 467-476, 2013

2 용환호, "국내 농업용 지하댐의 현황 및 활용 사례" 한국지하수토양환경학회 22 (22): 18-26, 2017

3 Ministry of Agricultural, Food, and Rural Affairs, "Statistical yearbook of land and water development for agriculture" 654-, 2016

4 Korea Rural Community Corporation, "Report on the estimation of agricultural groundwater use" 2009

5 Korea Rural Community Corporation, "Report on the establishment of master plan for agricultural water in Jeju Island" 2004

6 Park, W. B., "Estimation of agricultural groundwater withdrawal and characteristics of groundwater use in Jeju Island" 110-113, 2004

7 Woo, N. C., "Development of a predictive method for groundwater use" 4 (4): 297-309, 1994

8 Ministry of Land, Infrastructure and Transportation, "Annual report of groundwater survey" 2016

9 The Korean Society of Agricultural Engineers, "A study on the revision of the design standards for agricultural production infrastructure maintenance business(pumping and drain station)" Rural Development Corporation 622-, 2005