摘要
以北京林业大学5块绿地为对象,对其植物群落内部空气的PM_(10)浓度及植物群落美景度进行测量评价,并结合群落特征因子进行相关性分析,旨在筛选既有良好的滞尘能力又有较高美景度的最佳植物群落配置模式,为校园绿地植物配置提供借鉴。结果表明:1)流书播惠亭(常绿落叶相结合、高大乔木为主导的密植绿地)绿地群落的PM_(10)阻滞能力更强、景观美景度更优,常绿植物覆盖度10%~30%,每百平米有4~6种植物、植物颜色3~4种,乔灌搭配比例适中(0.6~3.5),植物搭配方式多为乔灌草型群落结构,校园绿地设计可参考其群落配置模式。2)校园内各样地PM_(10)日浓度变化整体呈先升高再降低的趋势,群落PM_(10)浓度与常绿植物覆盖度、色彩丰富度、结构层次丰富度呈显著负相关关系。3)群落SBE美景度值与乔灌比、色彩丰富度、植物种类丰富度、结构层次丰富度极显著正相关。4)群落SBE美景度与PM_(10)浓度具有相关性,乔灌草型植物群落具有较强的滞尘能力和较高美景度。
In order to select the best configuration pattern of plant community with excellent ability of dust retention and high scenic beauty,and provide suggestions for plant community configuration in campus green spaces,the paper takes 5 green spaces in Beijing Forestry University to measure and evaluate the PM_(10) concentration and the scenic beauty in the plant communities,and conducts the correlation analysis combining the factors of community characteristic.The results show that:1)The green space community at Liushubohuiting,which is densely planted with evergreen and deciduous mixed tall trees,has stronger PM_(10) blocking capacity,with better scenic beauty.Its community configuration pattern could be referred to in the design of campus green spaces,i.e.,the coverage of evergreen plants at 10%-30%,4-6 species of plants and 3-4 kinds of plant colors per 100 square meters,the matching ratio of trees and shrubs between 0.6-3.5,and arbor⁃shrub⁃grass community structure established;2)PM_(10)concentration is significantly negatively correlated with evergreen plant coverage,color richness,and structural hierarchical richness;3)Scenic beauty estimation(SBE)of the community is significantly positively correlated with the ratio of tree to shrub,color richness,plant species richness,and structural hierarchical richness;and 4)Community SBE is correlated with PM_(10) concentration,and the arbor⁃shrub⁃grass community has stronger ability of dust retention and higher SBE value.
作者
邹宁
李运远
胡楠
Zou Ning;Li Yunyuan;Hu Nan(School of Landscape Architecture,Beijing Forestry University,Beijing 100083,China)
出处
《中国城市林业》
2022年第5期16-22,共7页
Journal of Chinese Urban Forestry
基金
北京市重点研发计划“基于生态效果提升的植物多种种植方式研究及示范”(D171100007117003)。
