Eine Studie zeigt, dass die Sterblichkeit in städtischen Gebieten mit großflächigeren Begrünungsstrategien niedriger ist, insbesondere wenn Bäume im Umkreis von 1 km um Wohnhäuser stehen. Dies stellt die Vorstellung in Frage, dass kleinere Grünflächen näher am Wohnhaus (300-500 m) vorteilhafter sind

>Dr Song explains: “By analysing data from Hong Kong, we found that compared with other types of vegetation like grasslands, nearby forests have a pronounced impact on reducing heat-related mortality risks, particularly those within 1 kilometre of residential areas.
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>“Our findings suggest that urban greening strategies should focus on tree planting within walkable distances to local residents, in addition to adding other types of vegetation in a specific area.”
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>Dr Song says that the study challenges some conventional assumptions about urban greening strategies and has the potential to significantly impact urban planners, designers, and public health initiatives.
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>“For example, it challenges the idea that small greenspaces close to where people live are the most effective for improving health, especially those within 300 or 500 metres.
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>“Instead, our research suggests that broader-scale greening strategies, particularly involving trees, are more effective up to 1km away from communities,”  she adds.

Paper: [Do greenspaces really reduce heat health impacts? Evidence for different vegetation types and distance-based greenspace exposure – ScienceDirect](https://www.sciencedirect.com/science/article/pii/S0160412024005361?via%3Dihub)