토지, 물 및 식량 안보를 위한 식품 무역의 영향성 평가: 한국의 관점에서

골든오데이 ( Golden Odey ),바실아델러둔 ( Bashir Adelodun ),이슬기 ( Seulgi Lee ),칼리드아데올라아데요미 ( Khalid Adeola Adeyemi ),최경숙 ( Kyung Sook Choi ) 한국농공학회 2022 한국농공학회 학술대회초록집 Vol.2022 No.-

The observed and predicted changes in climate, as well as the growth in urban population, are creating severe stress on existing water resources in South Korea. By the importation of agricultural products from more water-rich countries through the virtual water concept, a country could save local water resources for other important uses. However, these imports from other countries could lead to certain vulnerabilities in the importing country derived from climate change. This study therefore assessed the implication of virtual water imports and climate change through food trade, on the water, land and food security status of South Korea over the period of 2000 to 2017. The results showed that significant amounts of national water and land was saved through the importation of major upland crops. Virtual water imports increased significantly over time, rising from 16.2 Bm3 in 2000 to 16.5, 17.4, and 20.7 Bm3 in 2005, 2011, and 2017 respectively, with the USA, China, Australia, Brazil and Canada being the major exporters to South Korea. The study also revealed high Climate Vulnerability Index (CVI) values for the oils and grains category of imported food, implying the high vulnerability of South Korea to climate change effects resulting from the import of these crops. The quantitative impacts and structural changes in virtual water trade, as well as the link between climate change, food security, international trade, and domestic water consumption could be evaluated for the sustainable management and allocation of resources.

식량교역의 토지, 물, 식량 안보에 미치는 영향 평가

골든오데이 ( Golden Odey ),바실아델러둔 ( Bashir Adelodun ),이슬기 ( Seulgi Lee ),칼리드아데올라아데요미 ( Khalid Adeola Adeyemi ),최경숙 ( Kyung Sook Choi ) 한국농공학회 2022 한국농공학회 학술대회초록집 Vol.2022 No.-

The observed and predicted changes in climate, as well as the growth in urban population, are creating severe stress on existing water resources in South Korea. By the importation of agricultural products from more water-rich countries through the virtual water concept, a country could save local water resources for other important uses. However, these imports from other countries could lead to certain vulnerabilities in the importing country derived from climate change. This study therefore assessed the implication of virtual water imports and climate change through food trade, on the water, land and food security status of South Korea over the period of 2000 to 2017. The results showed that significant amounts of national water and land was saved through the importation of major upland crops. Virtual water imports increased significantly over time, rising from 16.2 Bm3 in 2000 to 16.5, 17.4, and 20.7 Bm3 in 2005, 2011, and 2017 respectively, with the USA, China, Australia, Brazil and Canada being the major exporters to South Korea. The study also revealed high Climate Vulnerability Index (CVI) values for the oils and grains category of imported food, implying the high vulnerability of South Korea to climate change effects resulting from the import of these crops. The quantitative impacts and structural changes in virtual water trade, as well as the link between climate change, food security, international trade, and domestic water consumption could be evaluated for the sustainable management and allocation of resources.

계절적 기후변화의 콩생산량에 미치는 영향 평가

골든오데이 ( Golden Odey ),바실아델러둔 ( Bashir Adelodun ),칼리드아데올라아데요미 ( Khalid Adeola Adeyemi ),최경숙 ( Kyung Sook Choi ) 한국농공학회 2021 한국농공학회 학술대회초록집 Vol.2021 No.-

물과 가상수에 대한 대중인식 형성 인자 분석

골든오데이 ( Golden Odey ),바실아델러둔 ( Bashir Adelodun ),이슬기 ( Seulgi Lee ),쿠두스아데이 ( Qudus Adeyi ),최경숙 ( Kyung Sook Choi ) 한국농공학회 2023 한국농공학회 학술대회초록집 Vol.2023 No.0

Water demand management is a crucial approach for ensuring sustainable water supply. To ensure an effective water demand management, it is essential to have a good understanding of public perceptions of water use. In this study, we examined the perceptions of water use and virtual water of Daegu inhabitants in South Korea, with a focus on understanding their sociodemographic characteristics, water-saving behaviors, environmental attitudes, and accuracy in estimating water use and virtual water content. The results indicated that the majority of respondents were aware of the need for water conservation but exhibited only moderate engagement in water-saving behaviors. They consistently underestimated their water use across various activities (portable drinking water, shower, toilet flush, laundry and car wash), indicating a lack of understanding regarding the magnitude of water consumption. Similarly, respondents had limited awareness of the virtual water content in different products, with inaccurate perceptions of water-intensive products. Sociodemographic factors such as gender, education level, annual income, and family size significantly influenced perceptions of water use, while environmental attitudes played a significant role in the perceptions of both water use and virtual water content. The study highlights the need for educational initiatives to enhance public awareness and understanding of water use and virtual water, particularly in addressing misconceptions and promoting sustainable water management practices. While the findings are specific to Daegu city, they provide insights that can inform water management strategies in other cities globally.

저탄소 벼 논물관리 시범지구 현장 실험 - 포항 흥해지구 사례

이슬기 ( Seulgi Lee ),골든오데이 ( Odey Golden ),감호준 ( Ho-jun Gam ),강요셉 ( Yosep Kang ),전진렬 ( Jin Ryeol Jeon ),박은정 ( Eun-jung Park ),이인중 ( In-jung Lee ),최경숙 ( Kyung Sook Choi ) 한국농공학회 2022 한국농공학회 학술대회초록집 Vol.2022 No.-

최근 기후변화로 인하여 극한 가뭄, 극한 홍수가 빈번하게 발생하고 있으며, 발생심도가 증가하고 있는 추세로써, 이로 인한 사회적·경제적 심각한 피해를 발생시키고 있다. 기후변화 현상의 직접적인 원인 중 하나인 온실가스 배출 증가에 의한 지구온난화 영향을 저감하기 위해 전지구적으로 다양한 분야에서 탄소중립 정책을 펼치고 있다. 우리나라에서도 2050 장기 저탄소 발전전략을 수립하고, 농축산부문에서는 온실가스 배출량을 2030년까지 2018년 배출량 24.7백만톤 대비 27.1%인 6.7백만톤 감축을 목표로 하고 있다. 논물관리를 통한 벼재배 온실가스 감축목표량은 540천 톤이며, 이를 위해 2022년 올해부터 전국 8개도별 저탄소 논물관리 시범지구를 1개씩 지정하여 저탄소 논물관리 기술보급 사업을 실시하고 있다. 본 연구에서는 저탄소 논물관리 시범지구 중 하나인 경북 흥해지구 망천들녁의 현장 사례를 소개하고자 한다. 본 시범지구는 150ha 정도의 규모로써, 참여농가는 67가구이며, 중만생종인 삼광벼를 주로 재배하고 있다. 지금까지 관행적으로 실시하고 있는 연속관개 방식을 저탄소 논물관리로 전환하여 간단관개 일수를 늘리고 논 필지에 최소한의 담수심을 유지하여 메탄 가스 발생량을 감축시키는 목표로 현장 실험이 진행되고 있다. 본 실험에서 적용한 저탄소 물관리 기법은 대조구를 제외하고 처리구인 시험포별로 중간낙수 기간을 2주에서 4주까지 연장하고, 중간낙수 후 논물 얕게 걸러대기 혹은 얕게 대기를 실시하여 벼 논물관리에 따른 메탄가스 배출량의 감소 정도를 파악하는 실험이다. 총 6개의 시험포를 대상으로 적용한 저탄소 논물관리는 4∼7cm 상시담수, 중간낙수 2주 후 2~3cm 얕게 걸러대기, 중간낙수 3주 후 2~3cm 얕게 걸러대기, 중간낙수 4주 후 2~3cm 얕게 걸러대기, 중간낙수 2주 후 2~3cm 얕게대기, 중간낙수 4주 후 2~3cm 얕게대기의 5가지 물관리 유형이 포함된다. 본 연구의 결과는 논물관리 유형에 따라 메탄가스 발생이 현저히 감소하는 경향을 나타냈으며, 논 담수심의 정도(논 환원상태)에 따라 메탄 발생량에 상당한 영향을 주는 것으로 파악되었다. 저탄소 논물관리 기술보급을 위해서는 탄소중립 정책과 저탄소 논물관리에 대한 농업인의 이해와 참여가 반드시 필요하며, 지역별 물관리 특성이 반영된 저탄소 논물관리기법의 개발이 선행되어야할 것으로 사료된다.

극한강우 및 홍수피해 인과관계 평가: 충청지역 사례를 중심으로

바실아델러둔 ( Bashir Adelodun ),골든오데이 ( Golden Odey ),쿠두스아데이 ( Qudus Adeyi ),최경숙 ( Kyung Sook Choi ) 한국농공학회 2023 한국농공학회 학술대회초록집 Vol.2023 No.0

Flood, one of the major natural disasters responsible for direct economic damage in South Korea, has become an increasing event in recent times. Driven by climate change, precipitation extremes play a significant role on the flood damage and its further increase will exacerbate the socioeconomic impact in the country. However, the empirical evidence linking precipitation extremes to the historical flood damage is limited. Thus, understanding the causal link between extreme precipitation characteristics and flood damage are critical to provide important policies on preparedness and adaptation strategies to mitigate the disasters associated with flood events. The spatial and temporal changes of precipitation extremes from 10 synoptic stations based on daily precipitation data were analyzed using the ClimPACT2 tool and Mann-Kendall test. The four precipitation extreme indices consisting of consecutive wet days (CWD), number of very heavy precipitation wet days (R30 mm), maximum 1-day precipitation amount (Rx1day), and simple daily precipitation intensity (SDII), which represent changes in intensity, frequency, and duration, respectively, and the time series data on flooded area and flood damage from 1985 to 2020 were used to investigate the causal relationship in the ARDL-ECM framework and pairwise Granger causality analysis. The trend results showed that majority of the precipitation indices indicated positive trends, however, CWD showed no significant changes. ARDL-ECM framework showed that there was a long-run relationship among the variables. Further analysis on the empirical results showed that flooded area and Rx1day have significant positive impacts on the flood damage in both short and long-runs while R30 mm only indicated significant positive impact in the short-run, both in the current period, which implies that an increase in flooded area, Rx1day, and R30 mm will cause an increase in the flood damage. The pairwise Granger analysis showed unidirectional causality from the flooded area, R30 mm, Rx1day, and SDII to flood damage. Thus, these precipitation indices could be useful as indicators of pluvial flood damage in Chungcheong region.

SDG성취를 위한 한국가구별 음식물 쓰레기 물발자국 규명

바실아델러둔 ( Bashir Adelodun ),이슬기 ( Seul-gi Lee ),골든오데이 ( Golden Odey ),칼리드아데올라아데요미 ( Khalid Adeola Adeyemi ),최경숙 ( Kyung Sook Choi ) 한국농공학회 2021 한국농공학회 학술대회초록집 Vol.2021 No.-