A Supplemental Method for Planning of Green Space System of a Built-up Area Expanding Toward Rural-Urban Fringes

Green space system within a built-up area is very important to provide an ecological and livable environment. The green patches originally locate in rural-urban fringes is of contribution to the system, with the dynamics of patches controlled by urban planning. In this study, based on the analysis of the features about green patches in fringe in their types, dynamics, and potentials, it is argued that the green patches in fringe, always under a dynamic status, can be classified to three types with dissimilar ecological attributes and function; and they have much more potentials to improve the green space system of an extended built-up area. It is also suggested to constitute a set of planning mechanics to optimize the urban green space system aiming to effectively use these green patches. After some planning principles proposed, a supplemental planning method has been put forward, so as to provide an applied planning tool.