城市游憩空间形态的刻画基础:场模型还是要素模型

Description of Urban Recreational Spatial Morphology:Field Model or Feature Model

城市游憩空间是连续的还是离散的?在以往的研究中似乎不言自明的采用离散观。该文认为市区游憩空间更适于场模型,而郊区游憩空间更适于要素模型,在城市的边缘地带则兼有场模型和要素模型的特征,属于"灰色"地带。据此提出了城市游憩空间体系的结构模式,即:由市区游憩圈、城市边缘地带游憩圈、郊区游憩圈所构成的圈层结构。

The distribution characteristic of urban recreational space is continuous or discrete？ The previous researches implicate that it is discrete, but in this paper, it is argued that it is continuous and then field model is more suitable than feature model to describe it. This argument bases on three reasons. First, for urban morphology, organic pattern is closer to the essence of city than mechanical pattern or cosmic pattern. Second,judging the urban space whether agreeable for recreation depends on the integral environment rather than several parks or squares which are obvious of recreational function. Third, recreation is one part of urban residents＇ daily life,so one of essences of urban space is daily living space. Moreover, the distribution characteristic of suburban recreational space is quite different from urban recreational space, and the study shows that it is discrete, so feature model is more suitable than field model to describe it. There are also three reasons to support it. First, urban space and suburban space have opposite landscape. Second, the recreational districts in suburban area point to specific location. Third,urban residents arrive them infre- quently. Furthermore, in urban edge belt,it has the characteristics of both field model and feature model. Based on the analysis above and field-feature dualistic structure model, the structure pattern of urban recreational space system is put forward, which is divided into three rings：urban recreational space,urban edge recreational belt and suburban recreational space.