Development of greentrification and its sustainability in the metropolitan fringes

本文以大城市边缘区的乡村空间为研究对象，探讨了乡村空间绿色化的生成机制及其可持续性。绿色化的含义通常与开放和农村空间的扩张有关，包括农村土地使用/覆盖和景观，作为农村社区存在和农村活动发生的地区。在大都市边缘区，农村土地利用/覆盖和景观得到了维护和重建，农村空间的一些基本要素得到了重组。在创建绿色基准时，有农业和林业活动、其生产、农村土地使用/覆盖和景观、农场及其社区等要素。这些要素之间的相互关系在重构乡村空间和创造绿色化中起着重要作用。在横滨市集科地区作为绿色化类型的案例研究，（里山）导致了乡村景观的衰落;在城市外围开发廉价住房和不断涌入的城市居民导致了严重的冲突农村和城市的土地使用。然而，最近，旨在重建绿色化的活动，如保护农村森林，已被作为缓解这种冲突的手段，并将这些地区发展为农村和城市的节点。因此，农村和城市之间的可持续关系确保了绿色化的永久化。绿色化的建立促进了农村空间的可持续发展和结构调整。

In this stydy the author focuses on greentrification as an option of regional restructuring in the metropolitan fringe, and discusses its creation mechanism and sustainability in rural space. Meanings of greentrification are often associated with the beautifying of open and rural spaces including rural land use/covers and landscape, as areas where rural communities exist and rural activities occur. In the metropolitan fringe, rural land use/covers and landscape have been maintained and recreated with the restructuring of some basic elements of the rural space. In the creation of greentrificarion, there are elements of agricultural and forestal activities, their production, rural land use/covers and landscape, and farms and their community. The interrelation among these elements plays an important role in restructuring rural spaces as well as the creation of greentrification.In the Jike area of Yokohama city as a case study of the greentrification types, the decrease in area of rural forests(satoyama) has led to the decline of rural landscape ; the development of affordable housing lots in the outer fringe and the continuous inflow of urban residents into the newly developed areas have led to serious conflicts between rural and urban land uses. Recently however, activities that aim at recreating greentrification, such as conservation of rural forests, have been promoted as a means to mitigate such conflicts, and to develop these areas as nodes of rurality and urbanity. Thus, the perpetuation of greentrification has been assured by the sustainable relationships between rurality and urbanity. The creation of greentrification facilitates the sustainable development and restructuring of rural spaces.