城市高密度建筑群屋顶绿化景观规划分析

Analysis on Greening Landscape Planning of Urban High-density Building Group

提出了针对城市高密度建筑群屋顶的绿化景观规划设计。首先,基于城市屋顶形状和边界清晰、斑块面积较小且结构相对简单等特点,运用岛屿生物学理论建立新景观格局指数体系,从中选取符合该理论的斑块面积、斑块间隔离度等相关指数,因子分析法的运用避免了景观指数重复描述景观格局信息的现象,构建出新型景观格局指数体系;其次,结合屋顶绿化评价理论、模糊优先次序法及统计分析法获取了屋顶绿化评价指标体系,运用层次分析法对各层次间关系进行分析比较,在各项评价指标权重值确定后完成评价模型的建立,最终构建出屋顶绿化评价指标体系和模型,完成屋顶绿化景观规划设计系统。仿真实验证明,文中提出的绿化景观设计体系有效地缓解了城市热岛效应。

This paper proposed a landscape design for city high density buildings roof. First of all, the characteristics of city roof shape and clear boundary, patch area is small and relatively simple structure based on the use of landscape pattern of island biology theory to establish the index system, selected according to the theory of the plaque area, plaque isolation and other related index from, using the factor analysis method to avoid the repeated description of landscape index of landscape pattern information the phenomenon, to build a new type of landscape pattern index system; secondly, combining with the roof greening evaluation theory and fuzzy prioritization method and statistical analysis method to obtain the evaluation index system of green roofs, with all levels of the relationship between the AHP analysis,establishes the evaluation model of the completion of the weighted value of evaluation index is determined after the final construction the evaluation index system and the model of roof greening, roof greening landscape planning and design of the system is completed. Simulation experiments show that the proposed green landscape design system to effectively ease the urban heat island effect.