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以下是一些关于城市绿地的相关文献：

1. Gómez-Baggethun, E., Barton, D.N., 2013. Classifying and valuing ecosystem services for urban planning. Ecological Economics 86, 235-245.

2. Bolund, P., Hunhammar, S., 1999. Ecosystem services in urban areas. Ecological Economics 29(2), 293-301.

3. Tzoulas K., Korpela K., Venn S., Yli-Pelkonen V., Kazmierczak A et al (2007) Promoting ecosystem and human health in urban areas using Green Infrastructure: a literature review Landscape Urban Plan

4. Wolch JR, Byrne J & Newell JP (2014) Urban green space justice and the threat of displacement: a literature review and conceptual framework Landscape Urban Plan

5. de Vries S et al (2003) Natural environments—healthy environments? An exploratory analysis of the relationship between greenspace and health Environment Planning A

6.Kuo FE & Sullivan WC (2001) Aggression and violence in the inner city: effects of environment via mental fatigue Environment Behavior 

这些文献涵盖了城市绿地在生态系统服务、城市规划、人类健康和社会公正等方面的重要性和影响。您可以通过搜索这些文献的标题或作者来获取更详细的信息。