基于景感生态学的城市视觉感知量化研究—以北京市中心为例
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1.中国科学院空天信息创新研究院;2.中国科学院生态环境研究中心

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基金项目:

国家重点研发计划(2022YFB3903702);城市与区域生态国家重点实验室开放项目(SKLURE2022-2-5)


Quantitative study on urban visual perception based on Landsenses ecology in Beijing city center
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Affiliation:

Aerospace Information Research Institute, Chinese Academy of Sciences

Fund Project:

National Key Research and Development Program of China (2022YFB3903702); State Key Laboratory of Urban and Regional Ecology Open Fund (SKLURE2022-2-5)

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    摘要:

    营造舒适、人性化的居住环境对于城市可持续发展十分重要。传统的城市感知研究主要采用现场调研、问卷调查、遥感反演等手段,很难衡量并刻画居民对视觉环境的感知体验。鉴于此,基于景感生态学理论构建了城市视觉感知(物理感知和心理感知)定量测度和耦合分析框架,用于衡量人类视角下对城市建成环境的主观感受。该框架能够补充对城市微观空间格局的分析手段,丰富对人类视角下物理和心理感知空间变化的认识、提升城市感知品质的空间格局识别和细节刻画能力、深入理解不同城市复合生态系统要素与居民感知的影响关联。以北京市中心为例,构建了一套深度学习方法量化人类尺度的物理、心理感知测度方法。接着通过空间统计模型辨识物理感知以及城市复合生态系统要素对居民心理感知的作用强度。结果表明:1)树木可见度(TREE)和归一化植被指数(NDVI)对于提升积极心理感知有帮助。2)北京市中心的心理感知指数(PPI)存在明显的空间聚集现象,在“内—外”圈层和“南—北”城区上呈现明显差异。3)深度学习和机器学习模型能够用于准确刻画城市物理和心理感知的空间格局。总之,本研究为城市街区尺度上的景感营造和生态规划提供了有价值的定量参考,并且对可持续城市发展的智能管理具有积极意义,为我们理解和塑造城市环境和人类福祉提供了新的视角。

    Abstract:

    Creating a living environment that is both comfortable and human-centric is of paramount importance for the sustainable development of cities. Traditional methods of studying urban perceptions, which typically involve field surveys, questionnaire surveys, and remote sensing inversion, often fall short when it comes to accurately measuring and portraying the perceptual experiences of residents in relation to their visual environment. To address this shortcoming, a new framework has been developed, grounded in the theory of Landsenses ecology. This framework provides a quantitative measurement and coupling analysis of urban visual perception, encompassing both physical and psychological aspects. The primary aim of this framework is to gauge the subjective feelings of individuals towards the built environment from a human perspective. This innovative framework offers several key advantages. Firstly, it supplements existing methods of analyzing urban micro-space patterns, providing a more comprehensive understanding of the urban environment. Secondly, it enriches our understanding of changes in physical and psychological perceptual space from a human perspective. This is achieved by enhancing our ability to identify spatial patterns and detail depiction of urban perceptual quality. Lastly, it deepens our understanding of the complex relationships between different elements of urban composite ecosystems and residents' perceptions. The center of Beijing serves as a case study for the application of this framework. A set of deep learning approaches has been developed to quantify physical and psychological perception measurements at the human-scale. Following this, a spatial statistical model is employed to identify the intensity of the effects of physical perception and urban composite ecosystem elements on residents' psychological perception. The findings of this study are illuminating. Firstly, it was found that the visibility of trees (TREE) and the normalized difference vegetation index (NDVI) play a significant role in enhancing positive psychological perception. Secondly, a notable spatial clustering phenomenon was observed in the psychological perception index (PPI) in the center of Beijing. This phenomenon exhibited significant differences in the "inner-outer" layers and "south-north" urban areas. Lastly, it was demonstrated that deep and machine learning models can be effectively used to accurately depict the spatial patterns of urban physical and psychological perceptions. In conclusion, this study provides a valuable quantitative reference for the creation of landsenses creation and ecological planning at the urban block scale. It holds significant implications for the intelligent management of sustainable urban development, offering a novel perspective on how we understand and shape our urban environments and human well-beings.

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张永霖,王力,董仁才,付晓,王辰星.基于景感生态学的城市视觉感知量化研究—以北京市中心为例.生态学报,,(). http://dx. doi. org/[doi]

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