The result of the complex interactions of natural and spontaneous processes as well as of the planned actions by humans. Thus, an understanding of the detail of, and interactions between, the five broad research areas is important. Furthermore, this integrated framework demonstrates explicitly that the outcomes from different research themes of urban green space are inextricably linked and include physical and social systems and processes. What emerges from this contextual conceptualisation is that an interdisciplinary, multidisciplinary and transdisci- plinary understanding of the emergent research themes are required. The proposed research agenda facilitates the development of such studies in two ways. First, identifies broad interrelationships between research areas and thus gives an indication of the potential for collaboration between disciplines. Second, the 35 questions provide an initial catalogue of identified questions that require further research. This catalogue of questions is not definitive, nor is it prioritised, and the questions may vary in different geographical locations and at different histor- ical times. However, it does provide a common frame- work for researching current urban green space topics in Europe.
Our analysis shows that whilst the general functions and benefits of green spaces are reasonably well under- stood, when looking to the future there is insufficient