During the last decades, pastoralist, and agropastoralist populations of the world’s drylands have become exceedingly vulnerable to regional and global changes. Specifically, exacerbated stressors imposed on these populations have adversely affected their food security status, causing humanitarian emergencies and catastrophes. Of these stressors, climate variability and change, land-use and management practices, and dynamics of human demography are of a special importance. These factors affect all four pillars of food security, namely, food availability, access to food, food utilization, and food stability. The objective of this study was to critically review relevant literature to assess the complex web of interrelations and feedbacks that affect these factors. The increasing pressures on the world’s drylands necessitate a comprehensive analysis to advise policy makers regarding the complexity and linkages among factors, and to improve global action. The acquired insights may be the basis for alleviating food insecurity of vulnerable dryland populations.

在过去的几十年中，世界干旱地区的牧民和农牧民已变得极易受到区域和全球变化的影响。特别是，对这些人口施加的加剧的压力已经对其粮食安全状况产生了不利影响，造成了人道主义紧急情况和灾难。在这些压力源中，气候多变性和变化，土地利用和管理实践以及人类人口动态是特别重要的。这些因素影响粮食安全的所有四个支柱，即粮食供应，获得粮食，粮食利用和粮食稳定。这项研究的目的是批判性地回顾相关文献，以评估影响这些因素的相互联系和反馈的复杂网络。世界干旱地区面临的压力越来越大，因此需要进行全面分析，以向决策者提供有关因素之间的复杂性和联系的建议，并改善全球行动。获得的见解可能是减轻脆弱的旱地人口粮食不安全的基础。