| 摘要: |
| 高密度、高强度的城市建设和扩张导致城市热岛效
应不断增强，研究城市热环境网络格局以优化规划布局是改善
城市热环境的有效方法。将形态学空间格局分析与电路理论相
结合，立足多尺度，以成都市中心城区及其核心区为研究对
象，选取连通性强的冷岛、热岛源地，根据景观格局特征与地
表覆盖构建阻力面，运用Linkage Mapper识别廊道、冷岛
障碍点和热岛夹点，并进行分级和评价，构建研究区热环境网
络，提出多尺度下的格局优化建议。结果表明：1)中心城区
尺度识别出23处冷岛源地、34条关键廊道、48处障碍点，廊
道呈“串珠状”环绕研究区边缘分布，连通性和稳定性较弱；
2)中心城区核心区尺度识别出34处热岛源地、81条关键廊
道、98处夹点，廊道呈网状分布且普遍连通性较高，夹点是
未来阻断热岛廊道连通的关键区域；3)研究区形成“两环多
分支五组团多点”结构的城市热环境网络格局。研究结果可为
成都市及其他城市的热环境改善提供科学参考，丰富电路理论
在热环境领域中的应用。 |
| 关键词: 风景园林 热环境网络格局 电路理论 廊道 障
碍点 夹点 成都市 |
| DOI： |
| 投稿时间：2022-05-05修订日期：2022-06-29 |
| 基金项目: |
|
| Construction and Pattern Optimization of Multiscale Urban Thermal Environment Network Based on Circuit Theory: A Case Study of the Central Urban Area of Chengdu |
| ZHANG Wenping,ZHUANG Zixue,XIE Mengqing,HU Yang,WANG Qianna |
| Abstract: |
| High-density and high-intensity urban construction and
expansion have led to the continuous enhancement of urban heat
island effect, and studying the urban thermal network pattern to
optimize the planning layout is an effective way to improve the
urban thermal environment. This study combines morphological
spatial pattern analysis with circuit theory, takes the central urban
area of Chengdu and its core area as the research object based
on multiple scales, selects cold island and heat island sources
with strong connectivity, constructs resistance surfaces based on
landscape pattern characteristics and surface coverage, uses Linkage
Mapper to identify corridors, cold island barriers and heat island
pinch points, performs classification and evaluation, constructs
a thermal environment network in the study area, and proposes
suggestions for pattern optimization at multiple scales. The results
show that: 1) At the central city scale, there are 23 cold sources, 34
key corridors and 48 barriers, and corridors are beaded around the
edge of the study area, with poor connectivity and stability; 2) At the
core area scale, there are 34 heat sources, 81 key corridors and 98
pinch points were identified, corridors are distributed in a network
and generally with high connectivity, amd the pinch points are
the key areas to block the connectivity of heat island corridors in
the future; 3) The study area forms an urban thermal environment
network pattern with the structure of "two rings, multiple branches,
five clusters, and multiple points". The study can provide scientific
reference for the improvement of thermal environment in Chengdu
and other cities, and enrich the application of circuit theory in
thermal environment field |
| Key words: landscape architecture thermal environment network
pattern circuit theory corridor barrier pinch point Chengdu City |
