摘要
通过分析怀化市五溪文化公园的植物群落对群落内微气候的影响,为该公园营建舒适夏季微气候环境提供参考。于2022年夏季典型高温天气,在五溪文化公园内选择6种近自然的不同类型的植物群落设置样地,并选择无植被覆盖的硬质空地设置对照样地;采用典型样方法对6个样地的植物群落进行逐层调查,并采用实地调查法实测植物群落内空气温度、湿度与风速;比较不同植物群落之间微气候调节作用的差异。结果表明:6个样地植物群落内的空气温度、相对湿度与对照的差异均显著(P<0.01),但风速与对照的差异不显著(P>0.01),即阻风作用不显著。五溪文化公园中植物群落均具有一定的微气候调节作用,其中群落结构越复杂,三维绿量和郁闭度越大,平均胸径越大的植物群落降温、增湿作用越突出,且群落高度越高,增湿作用越明显。阻风作用主要受群落灌木层的影响,且受周边环境因子的影响明显,群落冠层结构特征对其影响不明显。基于该公园现状,建议增加其灌草层植被,以丰富其植物群落层次结构,促使其夏季群落内微气候环境更舒适。
By analyzed the influence of plant communities in Wuxi Cultural Park in Huaihua City on the microclimate regulation with in the community,it provides a reference for the creation of a comfortable summer microclimate in this park.In the summer of 2022,six different types of near-natural plant communities were selected to set up sample plots in the Wuxi Cultural Park,and a control sample plot was selected on a hard open space without vegetation cover.The results showed that the plant communities in the six sample plots had different microclimate regulating effects.The differences in air temperature and relative humidity between the plant communities in the six sample sites and the control were significant(P<0.01),but the differences in wind speed were not significant(P>0.01),i.e.the wind-blocking effect was not significant.The more complex the community structure,the greater in the amount of three-dimensional greenery,the higher in the degree of depression and the larger the average diameter at breast height,the more prominent the cooling and humidifying effect of the plant communities,and the higher the height of the community,the more obvious the humidifying effect.The wind-blocking effect was mainly influenced by the shrub layer of the community,and significantly influenced by the surrounding environmental factors,while the structural characteristics of the community canopy did not have a significant effect on it.Based on the current situation of the park,it is recommended to increase the vegetation in the scrub layer to enrich the hierarchy of the plant community and to promote a more comfortable microclimate in the summer.
作者
龙洁
张良波
彭尽晖
杨岑
戴众乐
胡泓意
LONG Jie;ZHANG Liangbo;PENG Jinhui;YANG Cen;DAI Zhongle;HU Hongyi(College of Landscape Architecture and Art Design,Hunan Agricultural University,Changsha,410128,Hunan,China;Huaihua University,Huaihua 418008,Hunan,China;College of Oriental Science and Technology,Hunan Agricultural University,Changsha 410128,Hunan,China)
出处
《湖南林业科技》
2023年第4期15-21,共7页
Hunan Forestry Science & Technology
关键词
植物群落结构
夏季
微气候
怀化市公园
plant community structure
summer
microclimate
Huaihua City Park
