Details zur Publikation |
| Kategorie | Textpublikation |
| Referenztyp | Zeitschriften |
| DOI | 10.1016/j.scs.2026.107425 |
| Titel (primär) | The interactive effects of impervious surface, vegetation, and water on urban land surface temperature |
| Autor | Zhang, Y.; Wu, C.; Wu, J.; Bi, X.; Wang, M.; Ouyang, L.; Li, C.; Song, C.; Mao, F.; Haase, D.; Finka, M.; Iojă, C.I.; Li, J. |
| Quelle | Sustainable Cities and Society |
| Erscheinungsjahr | 2026 |
| Department | CLE |
| Band/Volume | 144 |
| Seite von | art. 107425 |
| Sprache | englisch |
| Topic | T5 Future Landscapes |
| Supplements | Supplement 1 |
| Keywords | V-I-S model; Linear spectral mixture analysis; Impervious surface area; Land surface temperature; Geographically weighted regression model |
| Abstract | Urban land surface temperature (LST) is regulated by a dynamic interplay among impervious surface, vegetation, and water. A deeper understanding of their individual and interactive effects on LST is essential for mitigating urban heat islands (UHI) and guiding sustainable urban planning. This study develops a novel integrated Vegetation-Impervious-Water Geographically Weighted Regression (V-I-W-GWR) approach to quantify their subpixel-level thermal interactions in Shanghai. Key findings include: (1) Impervious surface is a dominant factor that increases LST with spatial variability, reflecting microclimatic modulation by urban morphology. (2) Vegetation provided near-ubiquitous cooling effect, although its efficacy diminished in high-density urban cores, whereas water offered strong localized cooling, especially in suburban areas. (3) The counteractive impervious surface-vegetation interactions effect on LST was strongest in urban centers, reducing vegetation cooling capacity by an average of 71%, whereas synergistic vegetation-water effects on LST were identified in riparian zones, enhancing cooling efficiency by an average of 36% compared with their respective effect. The thermal typologies derived from this study reveal pronounced spatial non-stationary LST drivers, supporting three UHI mitigation strategies: (i) precision greening in dense impervious surface zones (fraction threshold>0.5), (ii) development of “blue-green cooling corridors” along rivers where significant synergistic cooling effects existed, and (iii) place-based planning and design policy should be adopted in terms of the thresholds of thermal responses. This study establishes the first empirically derived cooling thresholds for Shanghai's built-environment, demonstrating how integrated subpixel spectral mixture analysis and spatial regression can bridge UHI theory with climate-adaptive planning. |
| Zhang, Y., Wu, C., Wu, J., Bi, X., Wang, M., Ouyang, L., Li, C., Song, C., Mao, F., Haase, D., Finka, M., Iojă, C.I., Li, J. (2026): The interactive effects of impervious surface, vegetation, and water on urban land surface temperature Sust. Cities Soc. 144 , art. 107425 10.1016/j.scs.2026.107425 |
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