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高温天气、营养不足与印度农村的适应行为

Hot Weather, Undernutrition, and Adaptation in Rural India
Journal of the Association of Environmental and Resource Economists · 2026 · Paul Stainier、Manisha Shah、Alan Barreca

中文摘要

我们考察了印度农村生长季气温对次年家庭膳食的影响,该地区以小规模家庭农场为主。生长季高温降低了农作物产量,这通常会减少收入和用于消费的自产食物。然而,家庭适应行为可能缓解产量下降对膳食的影响。我们发现,高温使次年严重营养不足的家庭数量增加,衡量指标包括热量、铁、锌、硫胺素和烟酸的摄入量。我们还发现提示性证据表明,家庭通过购买更多食物来适应高温导致的自产作物损失。

Abstract

We examine the impact of temperature during the growing season on household diets in the subsequent year in rural India, a setting with a high prevalence of small family farms. High growing-season temperatures reduce crop yields, which would presumably reduce incomes and home-grown food for consumption. However, household adaptation could mitigate how the reductions in yields affect diets. We find that heat increases the number of strongly undernourished households in the subsequent year, as measured by the consumption of calories, iron, zinc, thiamine, and niacin. We also find suggestive evidence that households adapt to heat-induced losses of home-grown crops by purchasing more food.
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