To ensure and maintain ecosystem service delivery in cities undergoing densification, strategic tree planting is important. The effects of tree location on ecosystem service delivery have been emphasised. However, there is no integrated overview of the different aspects of tree location, here called spatial contextual factors, that mediate urban tree ecosystem services. This paper presents the results of a systematic literature review and provides a comprehensive overview of spatial contextual factors recognised by research as relevant for ecosystem service delivery by urban trees. To support creating such an overview, we first gain insight into the current common understanding of what spatial context is conceptually and how it participates in the co-production of ecosystem services. We find that generally, spatial context is represented by both social and ecological structures and processes and that it mediates ecosystem services by four mechanisms along the ecosystem service cascade. In the next step, we identify 114 unique spatial contextual factors mediating 31 ecosystem services of urban trees. Of all factors, people, represented by physical location, socio-demographics or building functions, mediate the highest number of services, highlighting the importance of urban planning and design in mediating urban tree ecosystem services.

为了确保和维持正在致密化的城市中的生态系统服务交付，战略性植树很重要。树木位置对生态系统服务提供的影响已得到强调。但是，没有关于树木位置的不同方面（这里称为空间上下文因素）的综合概述，这些方面介导了城市树木生态系统服务。本文介绍了系统文献综述的结果，并提供了有关研究确认与城市树木提供生态系统服务相关的空间背景因素的全面概述。为了支持创建这样的概述，我们首先获得对当前空间背景概念的普遍理解以及它如何参与生态系统服务的联合生产的见解。我们发现一般来说，空间背景由社会和生态结构与过程共同表示，并通过沿生态系统服务级联的四个机制来调解生态系统服务。在下一步中，我们将确定114个独特的空间背景因素，这些因素会介导城市树木的31种生态系统服务。在所有因素中，以地理位置，社会人口统计学或建筑功能为代表的人们提供最多的服务，这凸显了城市规划和设计在调解城市树木生态系统服务中的重要性。