| 摘要: |
| 随着中国城镇化建设的进行，城市热岛效应逐渐成为城市发展的显著问题之一，而城市绿地能有效地缓解城市热岛效应，在城市规划中，可以通过对城市绿地进行合理布局，从而减缓城市热岛效应的影响。本文采用遥感数据反演的方法，综合应用地理信息系统（GIS）和遥感（RS）技术，得到不同时期保定市中心城区地表温度和植被覆盖度的时空演变图，分析近10年的时空演变规律，并用网格法对植被覆盖度与地表温度之间的耦合关系进行研究，得出研究区内的植被覆盖度每增加10%，其地表的平均温度可减少0.9℃~1.3℃。选取研究区域内的8个城市绿地，利用缓冲区分析的方法，定量研究城市绿地面积与其降温范围之间的关系，结合保定市热岛效应集中区域及周边土地利用现状，提出增加城市绿地的可能位置，为城市绿地布局提供科学依据。 |
| 关键词: 风景园林 植被覆盖度 地表温度 城市热岛效应 城市绿地 |
| DOI： |
| 分类号:TU986 |
| 基金项目: |
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| Mitigation Role of Urban Green Space in Reducing Heat Island Effect—A Case Study of Central Urban Area of Baoding City |
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YUE Xiaolei, LIN Qing, YANG Yuchong
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Beijing Forestry University
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| Abstract: |
| With the development of urbanization in China, the urban heat island effect has gradually become an obvious problem in urban climate. It can be effectively relieved by urban green space, so in the city planning, we may make a rational layout of the urban green space, to reduce the impact of urban heat island effect. This paper adopts the remote sensing data inversion method, and makes comprehensive application of the geographic information system and remote sensing technology, to obtain the spatio-temporal evolution map of the surface temperatures and vegetation coverage in the central urban area of Baoding city. It analyzes the spatial and temporal evolution law in the past 10 years and studies the correlation between vegetation coverage and surface temperatures under the grid method, to draw the conclusion that as the vegetation coverage increases 10%, the average surface temperature decreases by 0.9℃ to 1.3℃. Furthermore, the authors selected eight parks in the target area, adopted the buffer analysis method to study the relationship between urban green patches and its cooling range. Combined with the current situation of land use in Baoding, it provides a scientific basis for the layout of urban parks in the study area. |
| Key words: landscape architecture vegetation coverage land surface temperature urban heat island effect city green space |
| 引用本文: | 岳晓蕾,林箐,杨宇翀.城市绿地对热岛效应缓解作用研究——以保定市中心城区为例[J].风景园林，2018，25（10）：66-70. |
| YUE Xiaolei,LIN Qing,YANG Yuchong.Mitigation Role of Urban Green Space in Reducing Heat Island Effect—A Case Study of Central Urban Area of Baoding City[J].Landscape Architecture Journal, 2018, 25(10):66-70. |
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