广州市12种垂直绿化植物光合特性及滞尘能力研究  

Photosynthetic Characteristics and Dust-holding Capacity of 12 Vertical Greening Plants in Guangzhou City

作　　者：王芙蓉 伍祖莹 陈平[1] 许铭宇 崔宝萱 邢浙文 罗威 张钊辉 WANG Furong;WU Zuying;CHEN Ping;XU Mingyu;CUI Baoxuan;XING Zhewen;LUO Wei;ZHANG Zhaohui(Zhongkai University of Agriculture and Engineering,Guangzhou,Guangdong 510225,China)

机构地区：[1]仲恺农业工程学院园艺园林学院,广东广州510225

出　　处：《林业与环境科学》2024年第4期35-42,共8页Forestry and Environmental Science

基　　金：广东省教育厅重点平台项目(2016GCZX001)。

摘　　要：为筛选光合特性和滞尘能力较强的垂直绿化植物,以广州市12种垂直绿化植物为研究对象,使用Li-6800便携式光合仪测定光合与生理参数,采用洗脱称量粒度分析法和微孔滤膜法测定植物滞尘能力。结果表明,鸭脚木Heptapleurum heptaphyllum净光合速率(P_(n))最高,红花檵木Loropetalum chinense、吊兰BS(花城汇北区样地)Chlorophytum comosum等蒸腾速率(Tr)较低,耗水量低,抗性强;除了红花檵木和毛蕨Cyclosorus interruptus光补偿点(Light compensation point,LCP)接近阳生植物,其余植物LCP均接近阴生植物。花叶青木Aucuba japonica、吊兰BS滞尘量最大,对比两个样地的吊兰和鸭脚木得出,同一植物在不同生境的滞尘存在明显差异,随污染程度的增加滞尘量具有明显增幅;12种垂直绿化植物的总悬浮颗粒物(Total suspended particulate,TSP)大小为:花叶青木>吊兰>鸭脚木BS>花叶鸭脚木Schefflera actinopylla>毛蕨Cyclosorus interruptus>绿萝Epipremnum aureum>鸭脚木SQ(高德置地广场样地)>白脉椒草Peperomia tetragona>吊竹梅Tradescantia zebrina>肾蕨Nephrolepis cordifolia>合果芋Syngonium podophyl-lum>红花檵木>巢蕨Asplenium nidus>吊兰SQ。对比SQ和BS包含的相同植物:吊兰BS的TSP、干重滞尘量、PM_(>10)、PM_(10)和PM_(2.5)分别是吊兰SQ的8.93、3.24、7.65、15.99倍,鸭脚木BS和鸭脚木SQ的TSP、干重滞尘量、PM_(>10)、PM_(10)和PM_(2.5)的比例为:2.16、1.43、0.67、5.35、9.74。在进行城市垂直绿化建设时,花叶青木、吊兰、鸭脚木和花叶鸭脚木可作为优先选择的植物。To screen vertical greening plants with strong photosynthetic characteristics and dust-holding capacity,12 kinds of vertical greening plants in Guangzhou were selected as the research objects.The photosyn-thetic and physiological parameters were determined by the Li-6800 portable photosynthetic system,and the dust-holding capacity was determined by elution weighing particle size analysis and microporous membrane filtration method.The results showed that the net photosynthetic rate(Pn)of Heptapleurum heptaphyllum was the high-est,the transpiration rate(Tr)of Loropetalum chinense and Chlorophytum comosum in the plot of the Mall of the World North District was lower,and the water consumption was lower and the resistance was stronger.The light compensation point(LCP)of all plants was close to shade except that of L.chinense and Cyclosorus in-terruptus.Aucuba japonica and C.comosum in the plot of the Mall of the World North District had the highest dust-holding capacity.Comparing C.comosum and H.heptaphyllum in the two sample sites,it was conclu-ded that there was a significant difference in the dust-holding capacity of the same plant in different habitats,and the that the amount of dust-holding capacity increased significantly with the increase of pollution degree.The TSP size of 12 kinds of vertical greening plants was as follows:A.japonica>C.comosum>H.heptaphyl-lum in the plot of the Mall of the World North District>Schefflera actinopylla>Cyclosorus interruptus>Epiprem-num aureum>H.heptaphyllum in the plot of the Gaode Land Plaza>Peperomia tetragona>Tradescantia zebrina>Nephrolepis cordifolia>Syngonium podophyllum>L.chinense>Asplenium nidus>C.comosum in the plot of the Gaode Land Plaza.Comparing the same plants contained in SQ and BS,the TSP,dry weight dust-holding a-mount,PM_(>10),PM_(10 )and PM_(2.5) of C.comosum in the plot of the Mall of the World North District were 8.93,3.24,7.65 and 15.99 times that of C.comosum in the plot of the Gaode Land Plaza,respectively.The ratios of TSP,dry weight dust-holding,PM>10,

关 键 词：垂直绿化 光合特性 日动态 滞尘能力 粒径 

分 类 号：Q945.11[生物学—植物学] S731.2[农业科学—林学]