北京市8种常绿阔叶树种滞尘能力

发布时间：2018-03-17 20:02

本文选题：常绿阔叶树　切入点：滞尘量　出处：《应用生态学报》2017年02期 　论文类型：期刊论文

【摘要】：为筛选适用于北京地区的具有优良滞尘能力的常绿阔叶型绿化树种,提高城市植被滞尘能力,选取北京地区园林绿化应用广泛的8种常绿(含半常绿)阔叶绿化树种,应用洗脱-质量差值法,于2014年冬、春季节对其单位叶面积滞尘量进行测定,计算单叶滞尘量和单株滞尘量,并对树种综合滞尘能力进行聚类分析.结果表明:小叶黄杨、冬青卫矛、小叶女贞、金叶女贞、胶东卫矛、箬竹、早园竹和黄槽竹8种主要常绿(含半常绿)阔叶树种的滞尘能力存在较大差异,冬青卫矛具有最大的单位叶面积与单株滞尘能力,为1.36 g·m~(-2)和59.63g·plant~(-1),而箬竹的单叶滞尘能力最强(1.62 mg·leaf~(-1)).选择不同的滞尘量计量单位,树种滞尘量排序会发生变化.对8种常绿(含半常绿)阔叶树种做基于多指标综合滞尘能力的聚类分析可得到相应的分类,各类别代表不同级别的综合滞尘能力水平.其中,冬青卫矛、早园竹的综合滞尘能力较优良,而小叶黄杨、金叶女贞和黄槽竹的综合滞尘能力较弱.
[Abstract]:In order to select the evergreen broad-leaved tree species with excellent dust retention ability and improve the dust retention ability of urban vegetation in Beijing, eight evergreen (including semi-evergreen) broad-leaved greening species widely used in landscape greening in Beijing area were selected. In the winter and spring of 2014, the dust retention amount per leaf surface was measured by the elut-mass difference method, and the dust retention amount per leaf and per plant was calculated, and the cluster analysis of the comprehensive dust retention ability of tree species was carried out. The results showed that: Populus microphylla L. The dust retention ability of 8 main evergreen (including semi-evergreen) broad-leaved trees (including semi-evergreen) were significantly different among eight main evergreen (including semi-evergreen) broad-leaved species, such as Holly Holly, Ligustrum microphylla, Ligustrum auriculata, Jiaodong Weisheng, Indocalamus, Zaoyuan and Huangguo. Phyllostachys mongolicus has the largest leaf area and dust retention capacity per plant, which is 1.36 g 路m ~ (-2) and 59.63 g 路plantl ~ (-1), while the single leaf has the strongest dust retention capacity of 1.62 mg 路leaf ~ (-1). For 8 species of evergreen (including semi-evergreen) broad-leaved tree species, cluster analysis based on multi-index comprehensive dust retention ability can obtain the corresponding classification, each category represents the level of comprehensive dust retention ability of different levels. The comprehensive dust retention ability of Phyllostachys mongolicus and Zaoyuan bamboo was better, but that of Populus microphylla, Fructus lucidum and Phyllostachys sinensis was weak.
【作者单位】：北京林业大学园林学院/城乡生态环境北京实验室/国家花卉工程技术研究中心;
【基金】：北京市共建项目专项资助~~
【分类号】：X173;X513

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