Green-blue spaces(GBS)are pivotal in mitigating thermal discomfort.However,their management lacks guidelines rooted in epidemiological evidence for specific planning and design.Here we show how various GBS types modif...Green-blue spaces(GBS)are pivotal in mitigating thermal discomfort.However,their management lacks guidelines rooted in epidemiological evidence for specific planning and design.Here we show how various GBS types modify the link between non-optimal temperatures and cardiovascular mortality across different thermal extremes.We merged fine-scale population density and GBS data to create novel GBS exposure index.A case time series approach was employed to analyse temperature-cardiovascular mortality association and the effect modifications of type-specific GBSs across 1085 subdistricts in south-eastern China.Our findings indicate that both green and blue spaces may significantly reduce high-temperature-related cardiovascular mortality risks(e.g.,for low(5%)vs.high(95%)level of overall green spaces at 99th vs.minimum mortality temperature(MMT),Ratio of relative risk(RRR)=1.14(95%CI:1.07,1.21);for overall blue spaces,RRR=1.20(95%CI:1.12,1.29)),while specific blue space types offer protection against cold temperatures(e.g.,for the rivers at 1st vs MMT,RRR=1.17(95%CI:1.07,1.28)).Notably,forests,parks,nature reserves,street greenery,and lakes are linked with lower heat-related cardiovascular mortality,whereas rivers and coasts mitigate cold-related cardiovascular mortality.Blue spaces provide greater benefits than green spaces.The severity of temperature extremes further amplifies GBS's protective effects.This study enhances our understanding of how type-specific GBS influences health risks associated with non-optimal temperatures,offering valuable insights for integrating GBS into climate adaptation strategies for maximal health benefits.展开更多
基金supported by the National Natural Science Foundation of China(42001013,41971019,32271935)the Zhejiang Provincial Natural Science Foundation of China(Y23D050006)+2 种基金the Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province,China(2020E10004)the Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang(2019R01007)the Healthy Zhejiang One Million People Cohort(20230085).
文摘Green-blue spaces(GBS)are pivotal in mitigating thermal discomfort.However,their management lacks guidelines rooted in epidemiological evidence for specific planning and design.Here we show how various GBS types modify the link between non-optimal temperatures and cardiovascular mortality across different thermal extremes.We merged fine-scale population density and GBS data to create novel GBS exposure index.A case time series approach was employed to analyse temperature-cardiovascular mortality association and the effect modifications of type-specific GBSs across 1085 subdistricts in south-eastern China.Our findings indicate that both green and blue spaces may significantly reduce high-temperature-related cardiovascular mortality risks(e.g.,for low(5%)vs.high(95%)level of overall green spaces at 99th vs.minimum mortality temperature(MMT),Ratio of relative risk(RRR)=1.14(95%CI:1.07,1.21);for overall blue spaces,RRR=1.20(95%CI:1.12,1.29)),while specific blue space types offer protection against cold temperatures(e.g.,for the rivers at 1st vs MMT,RRR=1.17(95%CI:1.07,1.28)).Notably,forests,parks,nature reserves,street greenery,and lakes are linked with lower heat-related cardiovascular mortality,whereas rivers and coasts mitigate cold-related cardiovascular mortality.Blue spaces provide greater benefits than green spaces.The severity of temperature extremes further amplifies GBS's protective effects.This study enhances our understanding of how type-specific GBS influences health risks associated with non-optimal temperatures,offering valuable insights for integrating GBS into climate adaptation strategies for maximal health benefits.
