Urban Green Infrastructure

Muiti-scale Evaluation of Urban Green Space Based on Muti-source New Data: Exploration of Main Cities in China

The scientific evaluation of urban green space provides data support for green space planning, and it plays an important role in building sustainable and healthy city. This paper develops an indicator system for evaluating the urban green space under the new data environment, from the perspectives such as shape, quality, vitality, and service level. Then based on the theory of “Big Model”, the paper carries out multi-scale assessments of the green space in central area of 287 Chinese cities, and take Zunyi as a case study of evaluating the quality and vitality of urban green space. To make the research more objectivity, unity, and comparability, we solved several key issues including the extraction of spatial data of urban green space, and the definition of central city. The results show that: At the scale of green patch, the overall compactness of urban green space is high, and most green spaces are located near the city center. At the urban scale, the average service level of urban green space of 287 Chinese cities is 57.45%, while the sub-provincial cities have the highest average service level, and the prefecture-level cities have the lowest service level. This paper analyzes the shortages and problems of the national urban green space in the country in order to provide reference for the construction of urban green space in the future.

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李双金等 2018 风景园林_全国绿地.pdf
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The Special Issue published in Landscape and Architecture

《风景园林》大数据与城市绿色基础设施专辑

城市绿色基础设施作为城市公共空间的重要组成部分,对城市居民的日常生活具有重要影响,是其城市生活中不可或缺的一部分。城市绿色基础设施,近年来得到了政府的极大重视和支持,如登山步道、城市绿道、中央公园、街头微型公园、街道绿化等。如何科学合理地对这类基础设施进行科学布局与类型选择,如何对已建设基础设施的使用情况和实施效果进行客观评价,都是学界业界特别关注的主题。

 

近年来出现的大数据,提供了从更微观、更全面、更多维度、更实时地认识城市空间以及城市活动的机会。利用大数据来研究城市绿色基础设施具有较大潜力,使我们有机会客观认识绿色基础设施及其所承载的城市活动,不仅可以对设施的使用情况进行评价,还可以对设施的规划设计提供技术支持。这是对城市绿色基础设施这一领域以往偏经验偏质性研究的必要补充。

 

本期收录了大数据与城市绿色基础设施这一方向的论文共七篇,涵盖了设施使用评价与设施规划设计支持两方面内容,所使用的数据涵盖了遥感大数据、咕咚App大数据、摩拜单车大数据、兴趣点大数据以及百度街景大数据等。

 

——专题主持人:龙瀛,清华大学建筑学院,特别研究员/博士生导师 

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All papers included in the Special Issue
《风景园林》大数据与绿色基础设施专辑全部文章201808.pdf
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