Quantitative Analysis of Spatial Heterogeneity and Driving Forces of the Thermal Environment in Urban Built-up Areas: A Case Study in Xi’an, China

Xuan Zhao, Jianjun Liu and Yuankun Bu
Additional contact information
Xuan Zhao: College of Landscape Architecture and Art, Northwest A & F University, Yangling 712100, China
Jianjun Liu: College of Landscape Architecture and Art, Northwest A & F University, Yangling 712100, China
Yuankun Bu: College of Forestry, Northwest A & F University, Yangling 712100, China

Sustainability, 2021, vol. 13, issue 4, 1-13

Abstract: Clarifying the spatial heterogeneity of urban heat island (UHI) effect is of great significance for promoting sustainable urban development. A GeoDetector was used to detect the influential natural and society factors. Natural factors (normalized difference vegetation index ( NDVI ), soil-regulating vegetation index ( SAVI ), normalized building index ( NDBI ), and modified normalized difference water index ( MNDWI )) as well as society factors (road density ( RDD ), and population density ( POPD )) were selected as driving factors to be tested for their explanatory power for land surface temperature ( LST ). Results indicated that the Moran’s I index value for the LST of the built-up area is 0.778. The top three factors influencing the LST were NDBI , NDVI , and SAVI , the explanatory power of which was 0.7593, 0.6356, and 0.6356, respectively. The interactive explanatory power for NDBI and MNDWI was 0.8108 and for NDBI and RDD was 0.8002, these two interactions are double enhanced interaction relationships. The results of this study play a guiding role in the development of urban thermal environment regulation schemes and ecological environment planning.

Keywords: landsat 8; urban land surface temperature; driver factors; GeoDetector (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.mdpi.com/2071-1050/13/4/1870/pdf (application/pdf)
https://www.mdpi.com/2071-1050/13/4/1870/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:13:y:2021:i:4:p:1870-:d:496213

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().