摘要
以清洁区为对照,分析了昆明市工业区和主城区使用频率较高的典型树种滞尘效果,对不同功能区植物的滞尘量做差异性分析。结果表明,植物叶片的滞尘量高低排序是工业区、主城区、清洁区。通过对植株不同高度的滞尘量比较,发现低位置的植物叶片滞尘效果较好;在阔叶树种中,天竺桂(Cinnamomum pedunculatum Nees)的滞尘效果最好,可达到19.660 9 g/m2,而梧桐[Firmiana platanifolia(L.f.)Marsili]是对SO2吸收能力最强的植物;在针叶树种中,龙柏[Sabina chinensis(L.)Ant.var.chinensis cv.Kaizuca]和圆柏[S.chinensis(L.)Ant.Cupress.Gatt.]的滞尘效果较好,柳杉(Cryptomeria fortunei Hooibrenk ex Otto et Dietr.)对SO2和NOx的吸收净化能力较强。因此,综合考虑大气污染因素后,在不同功能区除应种植常绿阔叶树种以及落叶阔叶树种以外,还应考虑搭配以龙柏为首选的针叶树种,形成一个针叶树种和阔叶树种混交的合理群落结构。
With clean area as control, the dust-retention effect of some typical plants frequently used in industrial zone,urban area and clean area were analyzed; and difference analysis of the dust-retention amount among different region was conducted. The results showed that the dust-retention in industrial zone and urban area is much higher than that in clean area. By comparing the dust retention amount of the different plant height, it was found that the dust-retention effect of plant leaves at lower position is better. Among the 6 broadleaved tree species, Cinnamomum pedunculatum Nees had the best dust-retention effect, which could be 19.660 9 g / m2; Firmiana platanifolia（L. f.） Marsili had the best absorption ability to SO2. Among the coniferous species, Sabina chinensis（L.） Ant. var. chinensis cv. Kaizuca and S. chinensis（L.） Ant. Cupress.Gatt. had great dust-retention effect; Cryptomeria fortunei Hooibrenk ex Otto et Dietr. had good absorption abillity to SO2 and NOx. Considered all air-pollution factors, except for planting the evergreen broad-leaved tree species and deciduous broad-leaved trees in different pollution area, coniferous tree species such as S. chinensis var. chinensis cv. Kaizuca should also be planted to form a reasonable community structure with both coniferous and broad leaved tree species.
出处
《湖北农业科学》
2016年第18期4740-4745,共6页
Hubei Agricultural Sciences
基金
国家林业局林业公益性行业科研专项(201204101-10)
云南省高等学校优势特色重点学科(生态学)建设项目(2013)
