International audienceThe sustainable development is an important issue for our society. Thus, urban green spaces are a key element in order to assure a sustainable urban development. Although, most often they are associated as having only an aesthetic function, the urban green spaces perform important socioeconomic and environmental functions. Therefore, ensuring the existence of a great number of green spaces within an urban area is one of the objectives of the new European policies for urban planning, taking into account the sustainable urban development trend promoted by the new European strategies and also the fact that in the last decade we have been confronted to an intensive land artificialization due to the extensive phenomenon of ...