ヤナガワ　アキ   AKI YANAGAWA   柳川　亜季    所属   理工学部 総合理工学科    データサイエンス学環    職種   准教授
言語種別	英語
発行・発表の年月	2026/06
形態種別	学術雑誌
査読	査読あり
標題	Global exposure of stunted children to drought-sensitive ecosystems
執筆形態	共著
掲載誌名	Environmental Research Letters
掲載区分	国外
出版社・発行元	IOP Science
巻・号・頁	21(12),pp.124028
総ページ数	12
国際共著	国際共著
著者・共著者	Kaoru Kakinuma, Aki Yanagawa and Hyungjun Kim
概要	Child malnutrition is a major global challenge of particular concern under climate change. While links between drought and undernutrition are widely recognized, current global assessments often overlook ecosystem conditions, particularly ecological resistance, which reflects how sensitive local food systems are to climate extremes. Here, we present the first global assessment that estimates the exposed population of stunted children living in drought-sensitive ecosystems. We quantified ecological resistance to drought using satellite vegetation metrics normalized difference vegetation index (NDVI) and a drought index standardized precipitation evapotranspiration index (3 month), then mapped its spatial overlap with stunted child populations during 2000–2015. We found that nearly one in five stunted children (18%, or 29.8 million) were exposed to drought-sensitive ecosystems between 2000 and 2015, with the largest exposed populations in India, Pakistan, Yemen and Somalia. Previous global assessments and drought-nutrition monitoring have largely focused on arid Africa. Incorporating ecological resistance also highlights high-burden hotspots in South Asia. Prioritizing these hotspots can support progress toward Sustainable Development Goal 2.2.
DOI	10.1088/1748-9326/ae74e8