Spatio-temporal Dynamics of Water Footprints of Food Consumption in South Korea: A Decomposition Analysis.

IF 2.7 3区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Qudus Adeyi, Bashir Adelodun, Golden Odey, Kyung Sook Choi
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Abstract

South Korea faces severe water stress, as classified by the OECD, with changing dietary patterns significantly impacting water resources. To ensure water conservation and food security, it is crucial to understand the driving factors of the water footprint of food consumption (WFC). This study examined the WFC in South Korea from 2007 to 2023, focusing on how dietary choices impact water use and sustainability, and identified the key driving factors of changes in WFC. Using the logarithmic mean Divisia index (LMDI), this study decomposed these drivers into water footprint intensity, dietary structure, average dietary intake per person, and population effect. Additionally, global and local spatial autocorrelation analyses were used to measure the degree of spatial aggregation and distribution of WFC across administrative units. Results revealed a significant increase in WFC, from 27.6 km3 in 2007 to 34.7 km3 in 2023, with an average annual growth of 2%. Among the drivers, water footprint intensity contributed most to the increase in WFC, while average dietary intake per person led to a decrease. Cereals, meats and fish collectively account for more than 76% of the total WFC during the study period. The findings suggest that the drivers influencing the changes in WFC vary across administrative units, underscoring the need for tailored policies and strategies to promote sustainable food consumption practices that could conserve water resources in each administrative unit.

韩国食品消费水足迹的时空动态:一个分解分析。
根据经合组织的分类,韩国面临严重的水资源压力,饮食模式的变化对水资源产生了重大影响。为确保水资源保护和粮食安全,了解粮食消费水足迹的驱动因素至关重要。本研究调查了2007年至2023年韩国的水饱和度,重点研究了饮食选择如何影响水的利用和可持续性,并确定了水饱和度变化的关键驱动因素。利用对数平均分割指数(LMDI),将这些驱动因素分解为水足迹强度、膳食结构、人均膳食摄入量和人口效应。此外,利用全局和局部空间自相关分析来衡量WFC在行政单位之间的空间聚集程度和分布。研究结果表明,2007年至2023年,西北风区WFC由27.6 km3显著增加至34.7 km3,年均增长2%。在驱动因素中,水足迹强度对WFC的增加贡献最大,而人均膳食摄入量导致WFC的下降。在研究期间,谷物、肉类和鱼类合计占世界粮食总摄入量的76%以上。研究结果表明,影响世界粮食储量变化的驱动因素因行政单位而异,强调需要制定有针对性的政策和战略,以促进可持续的粮食消费做法,从而在每个行政单位节约水资源。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Environmental Management
Environmental Management 环境科学-环境科学
CiteScore
6.20
自引率
2.90%
发文量
178
审稿时长
12 months
期刊介绍: Environmental Management offers research and opinions on use and conservation of natural resources, protection of habitats and control of hazards, spanning the field of environmental management without regard to traditional disciplinary boundaries. The journal aims to improve communication, making ideas and results from any field available to practitioners from other backgrounds. Contributions are drawn from biology, botany, chemistry, climatology, ecology, ecological economics, environmental engineering, fisheries, environmental law, forest sciences, geosciences, information science, public affairs, public health, toxicology, zoology and more. As the principal user of nature, humanity is responsible for ensuring that its environmental impacts are benign rather than catastrophic. Environmental Management presents the work of academic researchers and professionals outside universities, including those in business, government, research establishments, and public interest groups, presenting a wide spectrum of viewpoints and approaches.
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