贵阳市引种园林树种的组成及生长适应性调查

Composition and Growth Adaptability of Introduce Landscape Tree Species in Guiyang

为了解贵阳市引种园林树种的组成及生长适应性状况，从2008年4月至2012年4月对贵阳市部分街道及公共绿地的引种园林树种进行了调查，参考有关文献确立耐冻级别、生长势和种植数。结果表明：贵阳市引种园林树种有41科72属116种（含栽培变种及变型种），其中，林木类17种、花木类35种、叶木类46种、篱木类5种、荫木类8种和蔓木类5种；耐冻级别为工级的有65种，Ⅱ～Ⅳ级的有46种，Ⅲ～Ⅳ级的有2种，Ⅳ～V级的有3种；生长较好的有68种，好～差的有46种，较差的有2种；种植极多的有18种，较多～较少的有61种，种植极少的有37种。较适宜贵阳栽培的有雪松、柳杉、侧柏、圆柏、罗汉松、蔓常春花等61种。

The freeze tolerance grade, growth vigor and planting quantity of introduced landscape tree species in part streets and public green space were analyzed and investigated from April, 2008 to April, 2012 by means of related literature to study their composition and adaptability in Guiyang. The results showed that there were 116 species, 72 genera, 41 families in introduced landscape tree species and the species number of forest tree, flowering tree, leaf tree, hedge tree, shadow tree and vine tree was 17, 35, 46, 5, 8 and 5 respectively. 65, 46, 2 and 3 species were of freeze tolerance grade I , Ⅱ～Ⅲ , Ⅲ～Ⅳ and IV～V separately. 68, 46 and 2 species were of good growth vigor, common growth vigor and bad growth vigor respectively. 61 species including Cedrus deodara , Cryptomeria fortunei , Cryptomeria fortunei , Sabina chinensis, Podocarpus macrophyllus and Vinca major, etc. are suitably planted in Guiyang.