华东师范大学学报（自然科学版）Issue(6)：82-93,12.DOI:10.3969/j.issn.1000-5641.2025.06.010
夏季高温胁迫下不同园林树种的树温调节能力
Tree temperature shift and regulation of various landscape tree species under high-temperature stress:A case study in Shanghai Chenshan Botanical Garden
摘要
Abstract
We have investigated the correlations between tree temperature and leaf physiological variables(net photosynthetic rate,respiration rate,and stomatal conductance)and functional traits(leaf area,leaf thickness,specific leaf weight and specific leaf area)by measuring tree temperatures using infrared thermal imager in Shanghai Chenshan Botanical Garden taking 37 tree species as sample.In general,the average temperature difference between the crown and the air is 0.6℃,while the average temperature difference between the trunk and the air is 2.1℃.Under high temperature stress,the temperature regulation mechanisms of different landscape tree species have significant differences.According to the regulation shifts of the tree temperature in response to high-temperature stress,tree species can be divided into 3 types,i.e.,rising type,maintenance type,and descending type.Tree species with larger single-leaf areas,specific leaf areas,and thinner leaf thickness have relatively lower crown temperatures and higher physiological levels of leaves,resulting in relatively better cooling effects.This can be used as a reference for selecting suitable tree species for regulating microclimate.关键词
园林树种/高温胁迫/树木温度/树冠温度/小气候调节Key words
landscape tree species/high temperature stress/tree temperature/crown temperature/microclimate regulation分类
建筑与水利引用本文复制引用
刘鸣,王志远,商侃侃..夏季高温胁迫下不同园林树种的树温调节能力[J].华东师范大学学报（自然科学版）,2025,(6):82-93,12.基金项目
国家重点研发计划(2022YFC3802602) （2022YFC3802602）
上海市科委科技创新行动计划(22dz1202404) （22dz1202404）
高密度人居环境生态与节能教育部重点实验室开放课题(20220111) （20220111）
