Regulation of blue-green landscape fragmentation on day-night surface urban heat island: A case study of Kunming
文献类型：期刊论文
| 作者 | Li, Jiaxi3; Liu, Zihan1,4; Shao, Zhenfeng2; Fu, Huyan3 |
| 刊名 | SUSTAINABLE CITIES AND SOCIETY
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| 出版日期 | 2026-03-01 |
| 卷号 | 138页码:107173 |
| 关键词 | Land surface temperature Surface urban heat island Blue-green landscape Landscape fragmentation Driving factor |
| ISSN号 | 2210-6707 |
| DOI | 10.1016/j.scs.2026.107173 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Accelerating global urbanization has intensified the urban heat island (UHI) effect and exacerbated the fragmentation of blue-green landscapes (BGL) (i.e., water bodies and vegetation cover). While previous studies confirmed the mitigating impact of BGL on surface urban heat islands (SUHI), the dynamic influence mechanisms of their fragmentation on diurnal and seasonal SUHI intensity (SUHII) remain inadequately understood. Our study investigated Kunming, a representative plateau city, by integrating high-resolution land cover data with SUHII data. Using Pearson correlation analysis and generalized additive models, we systematically analyzed the diurnally differentiated impact mechanisms of six BGL fragmentation types (Intact, Interior, Dominant, Transitional, Patchy, and Rare) on the SUHII. The key findings: (1) BGL coverage reached 54.64 %, but the core area exhibited high fragmentation (Patchy + Transitional = 74.93 %). (2) SUHII showed spatial gradients (core > middle > expanded area), with stable nighttime values but significantly enhanced daytime intensity in summer. (3) Rare, Patchy, and Transitional types positively correlated with SUHII (r = 0.13 similar to 0.60), while Dominant, Interior, and Intact types showed negative correlations (r = -0.03 similar to -0.15). Crucially, their cooling effect demonstrated nonlinear enhancement when Intact/Interior exceeded 40 % coverage. Conversely, higher Patchy/Rare proportions exacerbated SUHII. (4) Patchy contributed most to diurnal SUHII (daytime: 56.47 %; nighttime: 51.59 %). The core and middle areas were dominated by highly fragmented types (Rare + Patchy > 68.45 %), while the Transitional type shaped the expanded area. This study reveals the impact mechanism of BGL fragmentation on the SUHI, informing UHI mitigation via landscape optimization. |
| URL标识 | 查看原文 |
| WOS关键词 | TEMPERATURE ; PATTERN ; CITY ; CONFIGURATION ; VEGETATION ; IMPACTS ; PHOENIX ; NETWORK ; AREA |
| WOS研究方向 | Construction & Building Technology ; Science & Technology - Other Topics ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001681457300001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/220894]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 通讯作者 | Fu, Huyan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 2.Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & Re, Wuhan 430079, Peoples R China 3.Yunnan Univ, Sch Earth Sci, Kunming 650500, Peoples R China; 4.Anhui Univ, Sch Artificial Intelligence, Hefei 230601, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Li, Jiaxi,Liu, Zihan,Shao, Zhenfeng,et al. Regulation of blue-green landscape fragmentation on day-night surface urban heat island: A case study of Kunming[J]. SUSTAINABLE CITIES AND SOCIETY,2026,138:107173. |
| APA | Li, Jiaxi,Liu, Zihan,Shao, Zhenfeng,&Fu, Huyan.(2026).Regulation of blue-green landscape fragmentation on day-night surface urban heat island: A case study of Kunming.SUSTAINABLE CITIES AND SOCIETY,138,107173. |
| MLA | Li, Jiaxi,et al."Regulation of blue-green landscape fragmentation on day-night surface urban heat island: A case study of Kunming".SUSTAINABLE CITIES AND SOCIETY 138(2026):107173. |
入库方式： OAI收割
来源：地理科学与资源研究所
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