淮河以北地区秋色叶树种资源及园林应用研究

对淮河以北地区的野生及园林中应用的秋色叶树种进行了调查。结果表明,淮河以北地区现有秋色叶树种49种,其中乔木类39种,灌木类7种,藤本类3种,乡土秋色叶树种25种;红色叶类15种,黄色叶类16种,橙色叶类10种,紫红色叶类8种。城市园林中现已栽培应用的秋色叶树种共有31种,占资源总量的63.3%;其中乡土秋色叶树种已经应用的仅占乡土秋色叶树种资源总量的百分比为36.0%。在配置方式上,以丛植与列植为主,群植或林植方式比例较低。

Investigation and gardening application of autumn-color-l eaf tree resources in the areas north of Huaihe

This project investigated the natural and cultivated autumn-color-leaf tree resources in the areas north of Huaihe. The results are as follows ： in the areas north of Huaihe, there are 49 species of autumn-color-leaf tree resources, including 39 spe- cies of arbors, 7 species of shrubs and 3 species of vines. Among them, 25 kinds of the local species are found. Besides, in these resources, there are 15 species with leaves of red color, 16 species with leaves of yellow color, 10 species with leaves of orange color and 8 species with leaves of purplish red color. In the gardens, 31 species were planted, accounting for 63.3% of all the resources. And the local species planted in gardens is only accounting for 36.0%. In the planting mode, clump and row planting are the main types, but the proportion of group and forestry planting is a bit lower.