晋中市引种5种园林地被植物的耐荫性研究

Study on Shade Tolerance of 5 Ground-covering Plants Introducted in Jinzhong

根据晋中市的气候特点,在公园林下空地引种美国薄荷、马蔺、崂峪苔草、紫花地丁和丛生福禄考5种地被植物,在光照环境基本一致的前提下,对其形态指标、叶绿素含量、叶绿素a/b值、光合速率、蒸腾速率、气孔导度和水分利用率进行测定,综合各项指标筛选出适合在公园中推广的耐荫地被植物为紫花地丁和崂峪苔草。

5 ground-covering plants such as Monarda didyma,Iris lactea var. chinensis,Carex giraldiana,Viola philippica and Phlox subulata were introducted to the land under trees in parks according to the climate characteristics of Jinzhong.Their morphological indexes,chlorophyll content,chlorophyll a/b,leaf photosynthetic rate,leaf transpiration rate,stomatal conductance and water use efficiency were measured under the premise that the light environment was basically consistent. The results showed that ground-covering plants which were suitable for planting under the trees in parks were Viola philippica and Carex giraldiana.