用多分体光谱来描述城市增长的时空变化
1Department of Geography, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
Entropy (Basel, Switzerland)
|August 26, 2023
概括
这项研究引入了一种新的多分位数指数来分析城市增长动态. 该指数揭示了城市发展的时空变化,区分了稳定的中心增长和积极的边际增长.
科学领域:
- 城市形态学和空间分析
- 碎形几何学和缩放规律法则.
- 地理信息学和遥感技术
背景情况:
- 城市形态学经常表现出碎形特征,可以通过多碎形缩放量化.
- 积极和消极时刻顺序下的多分位参数捕捉了不同的城市增长模式 (稳定的中心与活跃的边缘).
- 现有的多分体光谱方法在充分揭示时空城市增长变化方面面临挑战.
研究的目的:
- 开发一种新的多元测量方法,以更好地分析城市增长动态.
- 捕捉和区分稳定的中心城市增长和活跃的边缘城市增长.
- 揭示城市空间结构的时空空间进化特征.
主要方法:
- 提出了一种结合理论原理和经验分析的多分法测量方法.
- 定义了一个基于一般化相关性维度 (D) 的新指数.
- 该指数使用D的增长率比在极端负数和正数时刻顺序.
主要成果:
- 拟议的指数在稳定的城市增长阶段始终保持一致.
- 该指数在活跃的城市增长阶段表现出异常波动或跳跃.
- 这一指数提供了超越传统的多分体光谱的空间时间洞察城市演变.
结论:
- 新的多分位指数有效地揭示了时空城市演变的动态.
- 将这个指数与多分形光谱相结合,可以更全面地描述城市空间结构的演变.
- 这种方法增强了对城市增长稳定性和活动的理解.
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