Explore the Mitigation Mechanism of Urban Thermal Environment by Integrating Geographic Detector and Standard Deviation Ellipse (SDE)

The urban surface temperature is a complex integrated natural-human geographic phenomena; with the development of geostatistical methods and application multisource data, its research has gradually shifted from single perspective to study that integrates multiple factors such as nature humanity. However, based on context integration natural human mutual constraints each factor, mechanism influence habitat thermal environment needs be further deepened. Therefore, this paper explores spatial temporal heterogeneity in Zhengzhou City during summer 2013–2020 multi-source data fusion, uses Geodetector model quantitatively reveal main influencing impact superimposed compound effect temperature. results show that: (1) central city (region within first ring) obvious, it mainly concentrated commercial densely populated areas. (2) According trend analysis, northwest-southeast direction continues increase 2013–2020, coupled development. (3) Among affecting temperature, normalized difference built-up index (NDBI), vegetation (NDVI), tasseled cap wetness (TCW), elements are particularly typical. NDVI TCW strongly negatively correlated environment, while NDBI positively correlated. (4) Mitigation can start interaction positive negative factors. This provides new ideas for analysis evolution patterns under multifactorial constraints, suggestions decisions promoting green sustainable