面向可持续城市形态的土地利用组合强度和开放空间比例:撒哈拉以南非洲城市的时空变迁

IF 1.5 Q3 URBAN STUDIES
S. Zelelew, Z. Mamo
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引用次数: 2

摘要

一个可持续发展的城市形态需要通过改造来容纳各种兼容的土地用途和充足的开放空间比例。因此,本研究旨在从撒哈拉以南非洲城市的角度考察土地利用转变模式的可持续性。本文还分析了正式规划干预和有机发展对城市内部和外围开放空间比例的影响。因此,土地利用组合和开放空间比例随时间的变化在地块和社区层面进行比较,这既有学术意义,也有实际意义。研究涵盖了三个形态时期的六个案例。结果表明,混合土地利用强度随时间的推移在地块水平上呈下降趋势,而在小区水平上呈上升趋势。此外,从历史中心向周边转移减少了社区一级混合土地使用的强度。多年来,混合土地利用强度呈下降趋势,反映了可持续城市形态的减少。为了避免这种情况,城市需要将有机发展和正式规划的实践和原则结合起来。此外,确保混合和充足开放空间比例的存在有助于提高地块和社区层面的可持续性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Land-Use Mix Intensity and Open Space Ratio towards Sustainable Urban Form: Spatio-Temporal Transformation of Cities from Sub Saharan Africa Perspective
A sustainable urban form needs accommodate a mix of varied compatible land uses with ample open space ratio though going through transformation. This study, thus, aims to examine the sustainability of land-use transformation patterns from Sub-Saharan African cities’ perspective. It also analyzes consequences of formal planning interventions and organic developments on open space ratio both in the inner city and the periphery. Hence, land-use mix and open space ratio are compared over time at both plot and neighborhood levels, which are both scholarly and practical. The research covers six cases from three morphological periods. Results indicate that the intensity of mixed-land use declined over time at plot levels, while the figure increased at neighborhood levels. Besides, moving from historic cores to peripheries reduces the intensity of mixed-land use at the neighborhood level. Across years, the intensity of mixed-land use showed a decreasing trend reflecting a reduction in the sustainable urban form. To avert this, cities need to integrate practices and principles of both organic development and formal planning endeavors. In addition, ensuring mixity and the existence of ample open space ratio helps to improve sustainability both at plot and neighborhood levels.
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来源期刊
CiteScore
3.00
自引率
30.00%
发文量
20
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