| In the course of fast urbanization, population move in city rapidly, which results in that the city expands quickly and forms the reinforced concrete forest. In the modern city which is characteristic of high density and big capacity, green open space is gradually becoming the focus of people's attention from the angle of protecting ecosystem and sustainable development. The concepts of green space and open space always have very plentiful connotation in the academe of the world. They have dual meaning in society and nature and keep changing with the times, the researchers' direction of this field and their points of view. Basing on the analysis of the concepts of green space and open space in the academe of the world, the concept of green open space is attempted to intruduce in this paper. Firstly, the concept of green open space is confirmed, the problems and causes existing in this field of our country are systemically analysed from macroscopical, middle and microcosmic level. Secondly, the origin and development of green open space are introduced. An inevitable tendency that green space is becoming opener than before is discussed from the historical angle. After that, the functions of urban green open space in ecology, protection, culture, landscape and value are analyzed, which shows that green open space plays a more and more important role in the sustainable development of modern city. Then, characterisitics of modern society in thoughts and culture are discussed, as well as the changings of green open space in service objects. Characterisitics of green open space of modern city in theory frame, design idea and space configuration are especially analysed. Finially, some ideas are proposed from macroscopical, middle and microcosmic level to solve the problem in urban green open space of our country, which will help to construct an initial theory frame of planning and design of urban green open space in our country. |
