不同生境对1年生东北黑榆和家榆生长质量的影响

Effects of Different Habitats on the Growth Quality of 1-year Ulmus davidana var. mandshurica and Ulmus pumila L.

通过研究1年生东北黑榆和家榆盆栽苗在哈尔滨不同道路生境下的生长质量,探究东北黑榆和家榆在城市道路生境中的应用情况。结果表明,东北黑榆除分枝数外的生长指标受到不同道路生境的影响,家榆各项生长指标对不同道路生境表现出适应性;东北黑榆和家榆的综合生长比值均随着交通污染程度的增加而增大,说明东北黑榆和家榆均能适应城市道路生境,并能表现出较好的生长质量。

By studying the growth quality of 1-year-old Ulmus davidana var.mandshurica and Ulmus pumila L.potted seedlings in different road habitats in Harbin,explored the application of Ulmus davidana var.mandshurica and Ulmus pumila L.in urban road habitats.The results showed that the growth indexes of Ulmus davidana var.mandshurica except the number of branches were affected by different road habitats,the growth indexes of Ulmus pumila L.showed adaptability to different road habitats;the comprehensive growth ratios of Ulmus davidana var.mandshurica and Ulmus pumila L.increased with the increase of traffic pollution,indicating that Ulmus davidana var.mandshurica and Ulmus pumila L.could both adapt to urban road habitats and could exhibit good growth quality.