Abstract Although assessing green space provisions is essential to understand environmental justice, few studies have focused on the age perspective and the inequality in access regarding elderly people. This study aims at understanding the spatial disparity in access to urban green and blue infrastructure (UGBI), with a special focus on the elderly. An enhanced “2SFCA” approach was applied to measure the per capita UGBI area by considering different vegetation types and water elements, natural attractiveness, street network, and the many-to-many relationship between the supply and demand locations. Using a case study in Hannover, Germany, this study applied two different “assumptions” of distance thresholds (the near proximity assumption and the far proximity assumption) of UGBI. Our case study showed that in Hannover, elderly people are generally not disadvantaged in their access to UGBI compared with other age groups, but that the degree of accessibility differs between neighborhoods considered. The study also showed that access limitations can be partly compensated by increasing the mobility of the elderly so that they can reach high quality green spaces located farther away. The findings recommend key locations for allocating green spaces and improving the connection between residential areas and UGBI.

中文翻译：

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获得城市绿地的平等：德国汉诺威的案例研究，重点关注老年人口

摘要 虽然评估绿色空间供应对于理解环境正义至关重要，但很少有研究关注老年人的年龄视角和获取不平等。本研究旨在了解获得城市绿色和蓝色基础设施 (UGBI) 的空间差异，特别关注老年人。通过考虑不同植被类型和水元素、自然吸引力、街道网络以及供需位置之间的多对多关系，应用增强的“2SFCA”方法来衡量人均 UBI 面积。本研究使用德国汉诺威的案例研究，应用了 UGBI 的两种不同的距离阈值“假设”（近邻假设和远近假设）。我们的案例研究表明，在汉诺威，与其他年龄组相比，老年人在使用 UGBI 方面通常不会处于劣势，但所考虑的社区之间的可达性程度不同。该研究还表明，通过增加老年人的流动性，使他们能够到达更远的高质量绿地，可以部分弥补进入限制。调查结果推荐了用于分配绿地和改善住宅区与 UBI 之间的连接的关键位置。