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阐述了都市区尺度下开放空间保护目标的多元化趋势及生态保护、休憩娱乐、游憩走廊、社区复兴,以及城市绿色基础设施等五个最为突出的目标,并强调开放空间形态的连续性是以上多元目标与价值得以实现的至关重要的因素。选取北美十大都市区开放空间规划的典型案例,在对比剖析其连续开放空间保护发展轨迹及影响因素的基础上,指出目标冲突不可完全避免,休憩娱乐、游憩走廊与社区复兴必须建立在生态保护的基础之上,绿色基础设施则是目标整合的思维方式;总结北美绿色轨迹的特征,最后从我国开放空间保护的现实出发,提出整合现有开放空间、将开放空间规划与城市增长管理有机结合及“病毒”式扩散策略等建议。
This paper expounds the diversified trend of open space protection targets and the five most prominent objectives of ecological protection, recreation and recreation, recreation corridors, community revitalization and urban green infrastructure under the metropolitan scale and emphasizes that the continuity of the open space pattern is based on the above Multiple goals and values to achieve the crucial factor. Based on the comparison and analysis of the trajectory and influential factors of the open space protection in the ten metropolitan areas of North America, this paper points out that the target conflict can not be completely avoided. The recreational recreation, the recreation corridor and the community revival must be based on the ecological protection Based on the above analysis, the green infrastructure is the way of thinking of target integration. The characteristics of the green trajectory in North America are summarized. Finally, from the reality of the open space protection in our country, the paper proposes to integrate the existing open space with the organic combination of open space planning and urban growth management And “virus ” type proliferation strategy and other suggestions.