This article studies the provision of urban green areas in cities where residents have preferences for the size of and access to those areas. At the optimum, the number of urban green spaces is a nonmonotone function of distance to the city center, while the sizes and distances to other urban green areas increase as one moves to the urban fringe. This article empirically investigates those properties for the 300 largest European cities by using the Global Monitoring Environment Services Urban Atlas database (European Environmental Agency). The empirical analysis confirms the nonmonotone relationship between the number of urban green spaces and the distance to the city center. The distance between two parks also increases as one moves toward the urban fringe.

中文翻译：

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欧洲城市绿地的地理分层

本文研究了在居民对这些区域的大小和进入有偏好的城市中提供城市绿地的情况。在最优情况下，城市绿地的数量是与市中心距离的非单调函数，而随着人们向城市边缘移动，其与其他城市绿地的大小和距离会增加。本文通过使用全球监测环境服务城市地图集数据库（欧洲环境署）对 300 个欧洲最大城市的这些属性进行了实证调查。实证分析证实了城市绿地数量与距市中心距离的非单调关系。随着向城市边缘移动，两个公园之间的距离也会增加。