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Abstract
ABSTRACT This study aims to bolster the resilience of cities in the face of heat wave disasters by considering climate regulation and residents’ thermal sensation. We chose a humid-hot climatic region for the experiment and used blend of objective climatic measurements and subjective questionnaires to analyze the thermal environment characteristics of different spatial forms of green spaces and the thermal sensation of people from different socio-demographic groups. The results demonstrate that (1) waterfront vegetation (semi-enclosed spaces) and mixed vegetation area (semi-open spaces) are the most effective in regulating urban microclimate effects and improving subjective thermal experience, (2) the subjective thermal sensation ranges reported by individuals consistently exceed the corresponding grading criteria under high heat pressure defined by the Wet Bulb Globe Temperature (WBGT), and (3) both elders (>65 years old) and children (<14 years old) exhibit weaker thermal sensitivity and a gentler response to temperature changes than people in other age groups. These results imply that green spaces with different structures and compositions have different effects on people’s thermal perception and people from different age groups respond heat waves differently. Consequently, it is necessary to implement real-time temperature monitoring in areas where these individuals gather, and to strengthen the early warning systems and guidance for their outdoor activities. These findings provide a reference for optimizing urban spatial forms and developing integrated ‘Heat-Health Action Plan’ in humid-hot regions around the world.
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