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

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