최근 기후변화로 가뭄, 홍수 등 재해의 빈도와 강도가 높아지고 있다. 이러한 재해의 피해를 줄이기 위해서는 시공간적 현황 파악을 통한 대비가 필요하다. 본 연구에서는 가뭄의 피해를 최소화하고자 지역별 밭작물의 필요수량과 공급량을 고려하여 밭가뭄 지역 등급화 실시하였고, 월별 비교를 통해 가뭄 취약 시기를 파악하였다. 전국 148개 지역 중 안전지역(Ⅰ), 안전지역(Ⅱ), 우려지역, 상습지역으로 구분한 25개 지역을 선정하였으며, 이 지역의 월별 필요수량 대비 공급량 분석을 하였다. 필요수량 산정의 재배작물은 콩으로 선정하였으며, 공급량은 공공관정, 민간관정, 상수도 자료를 분석하였다. 필요수량 대비 공급량이 봄철은 안전지역(Ⅰ), 안전지역(Ⅱ), 우려지역, 상습지역에서 각 1,281.5%, 667.6%, 729.5%, 316.3%, 가을철에는 각 436.0%, 212.8%, 213.9%, 105.3%로 공급이 충분할 것으로 분석되었으나 여름철에는 각 82.4%, 40.6%, 42.6%, 20.0%로 용수공급 이 부족한 것으로 분석되었다. 콩의 재배 기간인 5~9월에 관정(공공+민간)으로의 공급량은 대부분 지역에서 부족한 것으로 분석되었다. 이러한 분석을 통해 용수 부족이 발생하는 재배기간 동안 용수확보 방안이 필요하다.
Recently, the frequency and intensity of disasters such as droughts and floods have been increasing due to climate change. It is necessary to prepare by grasping the current status of time and space to reduce the damage of such a disaster. In this study, to minimize the damage of drought, field drought areas were graded in consideration of the amount of water required and the amount of water supplied for each region, and a monthly comparison identified the period of drought vulnerability. 25 out of 148 regions were selected nationwide, divided into Drought-safe areas (I), Drought-safe areas (II), Drought-concerned areas, and Drought-prone areas. An analysis was conducted on the amount of water supplied compared to the monthly required water in this region. Soybeans were selected among cultivated crops to calculate the amount of water required. The amount of water supplied was obtained by analyzing public and private tube well, and water supply data. In spring, the amount of water supply compared to the amount of water required was 1,281.5%, 667.6%, 729.5%, and 316.3% in drought-safe areas (I), drought-safe areas (II), drought-concerned areas, and drought-prone areas, and in autumn, 436.0%, 212.8%, 213.9%, 105.3% respectively, which was analyzed to be sufficient. However, in summer, 82.4%, 40.6%, 42.6%, and 20.0%, respectively, which was insufficient. Between May and September, the soybean cultivation period, the amount of water supplied to tube wells (public + private) was analyzed to be insufficient in most regions. Based on this analysis, it is judged that a plan to secure water will be necessary during the cultivation period when water shortages occur.