The connectivity of urban green space has a strong influence on the benefits that green space provides—more connected green space has been linked to greater biodiversity, increased recreational opportunities, improved air quality, and increased noise attenuation. Previous urban green space equity research largely focuses on the total amount or accessibility of green space, ignoring connectivity and other measures of configuration that also impact green space equity. Taking both a demographic and spatial approach, we examine whether green space (i.e., park and tree canopy) area, patch size, and connectivity are distributed equally in ten U.S. cities. We find that not only are wealthy, college-educated, and predominately White census tracts more likely to have greater total green space, the green space patches are larger and more connected. This inequality was stronger for tree canopy than for parks, pointing to the need for policy interventions to improve tree canopy connectivity in areas of systematic disinvestment.

中文翻译：

---

美国 10 个城市公园和树冠连通性不平等

城市绿地的连通性对绿地提供的效益有很大影响——更多连通的绿地与更大的生物多样性、更多的娱乐机会、改善的空气质量和增强的噪音衰减有关。以往的城市绿地公平性研究主要关注绿地总量或可达性，忽视了连通性和其他也会影响绿地公平性的配置指标。我们采用人口统计和空间方法，研究美国十个城市的绿地（即公园和树冠）面积、斑块大小和连通性是否均匀分布。我们发现，不仅富裕、受过大学教育且以白人为主的人口普查区更有可能拥有更大的总绿地面积，而且绿地面积更大、连通性更强。树冠的这种不平等比公园更严重，这表明需要采取政策干预措施来改善系统性撤资领域的树冠连通性。