| 摘要: |
| 城市化的快速发展使中国城市景观格局发生显著改
变，热岛效应等生态问题日渐突出。为探究城市公园的冷岛
效应，以成都市为例，基于Landsat 8、Sentinel-2遥感影
像，借助ArcGIS、ENVI平台，从公园内部景观构成、斑块
形态和空间布局3个方面，量化分析了公园景观特征对公园
冷岛(Park Cool Island，PCI)效应的影响。结果表明：
当公园面积小于32hm2
和大于32hm2
时，最佳降温效应下公
园内部景观斑块的构成、形状、空间分布规律呈现不同的规
律特征，32hm2
是公园降温效应变化的转折点，综合考虑公
园投入的建设面积与其降温效应的收益，公园建设面积小于
32hm2
较为合理。 |
| 关键词: 风景园林 城市公园 景观特征 冷岛效应 遥感
反演 |
| DOI： |
|
| 基金项目: |
|
| Study on Cold Island Effect of Landscape Characteristics of Urban Parks in Chengdu |
| CHEN Lixing,DENG Yali,ZHANG Yingzi,WANG Yan |
| Abstract: |
| The rapid development of urbanization has significantly
changed the urban landscape pattern in China, and the ecological
problems such as heat island effect have become increasingly
prominent. In order to explore the cold island effect of urban parks,
taking Chengdu as an example, based on Landsat 8 and Sentinel-2
remote sensing images, and with the help of ArcGIS and ENVI
platforms, this paper quantitatively analyzes the impact of park
landscape characteristics on the cold island effect of parks from three
aspects: landscape composition, patch shape and spatial layout in the
park. The results show that when the park area is less than 32hm2
or
greater than 32hm2
, the composition, shape and spatial distribution
of landscape patches in the park under the optimal cooling effect
show different characteristics. 32hm2
is the turning point of the
change of park cooling effect. Considering the construction area
invested by the park and the benefits of the cooling effect, the park
area of less than 32hm2
is more reasonable. |
| Key words: landscape architecture city park landscape
characteristics cold island effect remote sensing inversion |
