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色叶行道树是指叶片呈现红色、黄色、紫色等异于绿色的色彩,而具有较高观赏价值的行道树。根据叶色变化的特点,陕西关中常见色叶行道树分为以下四类,其造景特色为:1、春色叶行道树是指春季新发生的嫩叶呈现显著不同叶色的行道树。其新叶一般呈现红色、紫红色或黄色,在春风的吹拂下,多彩多姿、极具魅力。如树形优美的垂柳婀娜多姿,柳芽初绽、色似鹅黄,是春天的象征。它与红叶碧桃或黄花垂枝的连翘、迎春配植,最宜在渠边水岸。宜选雄株,以防柳絮飘飞、污染环境。其他常见的还有冠大荫浓的臭椿、红叶臭椿,树形端庄的石楠,果如灯笼的奕树等。2、常色叶行道树大多数是由芽变或杂交产生,并经人工选育的观赏品种,其叶片在整个生长期或常年呈现异色,保持鲜艳的色彩,大多为灌木。如艳丽多姿的紫叶李红叶摇曳,它与连翘、白碧桃等春花配植,黄红相映、颇为美观。常见的还有红枫、紫叶矮樱、金叶女贞、金叶忍冬、金塔柏、翠柏。
Colored leaves Road tree refers to the leaves showing red, yellow, purple and other different from the green color, and has a high ornamental value of the road tree. According to the characteristics of leaf color change, the common color leaf road trees in Guanzhong of Shaanxi Province are divided into the following four categories. The landscape features are as follows: 1. Spring leaf road tree refers to the road tree with different leaf color newly emerging in spring. The new leaves are generally red, purple or yellow, blowing in the spring breeze, colorful, very attractive. Such as graceful tree weeping graceful weeping willow, early bud willow, color like a goose, is a symbol of spring. It is with the red leaves of yellow orchids weeping forsythia, spring planting, the most appropriate drainage canal edge. Should choose male plants, to prevent catkins fly, pollute the environment. Other common crown big shade Ailanthus altissima, Ailanthus altissima, tree dignified briar, fruits such as lanterns Yi tree. 2, most of the color leafy road trees are mostly produced by buds or hybrids, and artificial selection of ornamental varieties, the leaves throughout the growing or perennial showing different colors, to maintain bright colors, mostly shrubs. If the colorful leaves of purple leaves swaying, it with forsythia, white peach and other spring with plants, yellow and red, quite beautiful. There are common red maple, purple leaves dwarf cherry, privet lily, gold leaf honeysuckle, gold tower cypress, cypresses.