ABSTRACT

The increase and preservation of the socio-environmental functions of urban green spaces (UGS) through suitable management is part of the actions of the United Nations’ Sustainable Development Goals. UGS offer benefits to the population in function of their quantity, availability and accessibility. Therefore, we developed a methodology to measure and classify UGS within the urban center of the Queretaro Metropolitan Area in central Mexico. We established one UGS category: public green space and polygon digitization was conducted at 1:1000 scale through on-screen digitization using visual image interpretation. Spatial analysis was carried out in terms of (1) extent (urban green space area); (2) density of UGS (m2 of green area/city block; and (3) accessibility to UGS (access for the population at block level as a unit of analysis). Furthermore, cartographic accuracy assessment was conducted in order to validate the generated data. The results show not only the spatial distribution of UGS in the study area but also their spatial relations with the population, in terms of accessibility and density measured against conventional standards. These results may contribute to urban planning regarding UGS, for the improvement of their functions and contributions to the cities’ populations.

摘要

通过适当的管理增加和保护城市绿地 (UGS) 的社会环境功能是联合国可持续发展目标行动的一部分。UGS 根据其数量、可用性和可访问性为人口带来好处。因此，我们开发了一种方法来测量和分类墨西哥中部克雷塔罗都会区城市中心内的 UGS。我们建立了一个 UGS 类别：公共绿地和多边形数字化是通过使用视觉图像解释的屏幕数字化以 1:1000 的比例进行的。从（1）范围（城市绿地面积）进行空间分析；(2) UGS 的密度（绿地面积/城市街区的平方米；和 (3) UGS 的可达性（作为分析单位的街区级人口的可达性）。此外，进行了制图准确性评估，以验证生成的数据。结果不仅显示了研究区 UGS 的空间分布，还显示了它们与人口的空间关系，根据常规标准衡量的可达性和密度。这些结果可能有助于有关 UGS 的城市规划，以改善其功能和对城市人口的贡献。