野生草本花卉观赏价值的定量评价

The Quantitative Evaluation of Ornamental Value on Wild Herbage Flowers

为了定量地评价野生草本花卉的观赏价值，通过对观赏植物的叶、花、果和形等4类特性进行分析。每类以30分制分别量化，总分120分，形成一个较容易实施的野生草本花卉评分系统。采用该评分方法，选取18种野生苹本花卉，对个体进行观赏性量化评价，其分值变动在21．5～65分，其中，7种观叶类草本分值变动范围为21．5～61分，7种现花类分值为38~65分，4种观果类分值为30~55分；依量化分值排序，观叶、观花、观果价值最高的分别是爬树龙、峨嵋翠雀花和南赤腱，最低的分别是鞭叶铁线蕨、芦苇和狗尾草。应用这种方法可以筛选具有较高观赏性的花卉进行引种驯化，以便在园林上应用。

For quantitativly evaluating the ornamental value of wild herbage flowers, a convenient application scoring systems on the wild herbage flowers was suggested by analyzing the leaves, flowers, fruits and shapes characters, and each character was gave 30 quantitative score, totally 120 score. With the scoring systems, ornamental characteristics of 18 wild herbage flowers were evaluated quantitatively. It was found that the variable score range from 21.5 to 65, in which the variable range of seven herbages for foliage-ornamental were 21.5 ~ 61, seven herbages for flower-ornamental were 38 ~ 65, and four herbages for fruit-ornamental were 30~55. According to the quantitative score, the highest ornamental value of the herbages for foliage-ornamental, flower-ornamental and fruit-ornamental are Rhaphidophora decursiva, Dalphimun omeiense and Thladiantha nudiflora respectively ; and the the lowest ornamental value are Adianturn caudaturn, Phragmites australis and Setaria viridis respectively. The herbage flowers with higher ornamental value could be selected by the method for introduction and domestication, then applied in landscape gardens.