摘要
指出了植物群落是城市绿地建设中不可或缺的构成要素,而科学合理的植物群落能够有效地改善局地的微气候。探究了复羽叶栾树植物群落植物构成、植株个体、群落结构类型、冠层结构和物种多样性的特征,以及该群落空气温度、相对湿度、CO_(2)浓度和负离子浓度微气候因子的响应,从微气候效应的角度为复羽叶栾树的植物应用和城市绿地系统植物群落配置提供相关参考依据。结果表明:植物群落内植物种数量越多,其群落结构组成越复杂,郁闭度越高,对太阳辐射热的有效阻隔和水分蒸发的保留越有利,从而起到更好的降温增湿效果,提升了植物的光合作用效率,固碳释氧能力更强,促进了植物光电效应,提高了负离子浓度,加强了清洁空气的作用。其中,QL02(复羽叶栾树+香樟+玉兰-紫薇+鸡爪槭+杜鹃+海桐+绣球荚蒾-结缕草+红花酢浆草)微气候效应的响应最佳。
Plant community is an indispensable element in the construction of urban green space.Scientific and reasonable plant community can effectively improve the local microclimate.This study explored the characteristics of plant composition,plant individual,community structure types,canopy structures and species diversity of Koelreuteria bipinnata plant community,as well as the response of microclimate factors such as air temperature,relative humidity,CO_(2) concentration and anion concentration.From the perspective of microclimate effect,it provides relevant reference for the plant application of Koelreuteria bipinnata and the plant community configuration of urban green space systems.The research shows that the more the number of plant species in the plant communities,the more complex the composition of the community structures and the higher the canopy density,the more favorable the effective blocking of solar radiant heat and the retention of water evaporation,thus achieving a better cooling and humidifying effect.The photosynthetic efficiency of plants is improved;the ability of carbon fixation and oxygen release is strengthened;the photoelectric effect of plants is promoted;the concentration of negative ions is improved and the role of clean air is enhanced.Among them,QL02(Koelreuteria bipinnata+Cinnamomum camphora+Yulania denudata-Lagerstroemia indica+Acer palmatum+Rhododendron simsii+Pittosporum tobira+Viburnum macrocephalum-Zoysia japonica+Oxalis corymbosa)has the best response to the microclimate effect.
作者
丑琉懿
李宏归
廖飞勇
Chou Liuyi;Li Honggui;Liao Feiyong(Central South Forestry University of Science and Technology,Changsha,Hunan 4100042,China;Hunan Big Data Engineering Technology Research Center of Natural Protected Areas Landscape Resources,Changsha,Hunan 410004,China)
出处
《绿色科技》
2022年第10期24-28,共5页
Journal of Green Science and Technology
基金
国家林业局重点学科(编号:林人发〔2016〕21号)
湖南省“双一流”培育学科(编号:湘教通〔2018〕469号)。
关键词
植物群落
群落特征
微气候效应
plant communities
community characteristics
microclimate effect
