Land tenure security is increasingly recognized as a foundational element for advancing global sustainable development agendas, but questions remain about how it affects human well-being and environmental outcomes. We identify 117 studies that aimed to estimate the causal effect of land tenure security interventions on these outcomes. Approximately two-thirds of these studies reported positive links between improved tenure security and human well-being or environmental outcomes. Close to half of the studies that examined social and environmental outcomes reported positive impacts on both. The majority of studies assessed government-implemented interventions that statutorily recognized rights through land titling and formalization in the 1990s and 2000s. More research is needed to bolster the body of evidence on the effects of non-technical interventions (for example, capacity building and awareness raising) and the devolution of rights to inform future land policy efforts and accelerate sustainable development.

土地权属安全日益被认为是推进全球可持续发展议程的基本要素，但人们仍对它如何影响人类福祉和环境成果存有疑问。我们确定了117项旨在评估土地权属安全干预措施对这些结果的因果关系影响的研究。这些研究中大约有三分之二报告了改善的权属安全性与人类福祉或环境成果之间的积极联系。审查社会和环境成果的研究中，近一半的研究都对两者都有积极影响。大多数研究评估了政府实施的干预措施，这些干预措施在1990年代和2000年代通过土地所有权和正规化合法地承认了权利。