【作者】 唐含宇；

【导师】 卓丽环；

【作者基本信息】 东北林业大学 ， 园林植物与观赏园艺， 2003， 硕士

【摘要】 从美学的角度来看，观赏植物的色彩在园林中是第一性的，而许多观赏树木色彩的类型和格调主要取决于叶色，因此，叶色被认为是风景园林色彩的创造者。观叶树种尤其是某些色叶树种观赏价值较高，具有许多草本植物和其它木本植物所不具备的特点。但其应用尚未普遍，又未得到足够的重视。所以，本研究着眼于观叶树种在园林中应用的现状，通过对观叶树种的种类调查和物候观测，总结出适宜在东北地区城市园林绿化中应用的观叶树种，为植物景观设计提供了一定的理论参考。同时从生理学、生态学角度对影响叶色变化的因素进行研究，找出影响观叶树种叶色的内因——色素含量、叶片相对含水量、光合作用和外因——气温、光照、水分供应、风和人为因素，其中色素含量与气温是影响观叶树种叶色的两个重要因素。观叶树种的叶色是在许多因素综合作用下发生变化的，在利用观叶树种进行园林景观设计时必须充分考虑影响观叶树种叶色的各种因素(内因和外因)，同时对观叶树种的生物学特性和生态习性有深入的了解，使其在城市环境中达到最鲜艳的颜色，产生最佳的景观效果，使园林植物造景更具科学性和艺术性。更多还原

【Abstract】 from the view of aesthetics, the color of ornamental plant is the most important fact in landscape design. Color type and grade of many ornamental trees and shrubs are dependent on their leaf color. So leaf color is regarded as the creator of garden hue. Ornamental trees and shrubs, especially those with colored leaves are worthy to be enjoyed, they have many characteristic features superior to herbage and other ligneous plant. But the application of them are not popular , and we haven’ t attached importance to these trees. With an eye on present situation of the foliage trees’ applacation, we investigated the foliage species in Shenyang and Haerbin , do some phenological observations , and summarize divers foliage trees which can be used in landscape design. We looked into the agents that influnce leaf color from the view of physiologic and ecologic and found the intrinsic factor that influnce leaf color-pigments potent, moisture content and photosynthesis of leaves, and the extrinsic factor-air temperature, light, wind, water supply and some anthropogenic factors. Pigments potent and air temperature are are more important than other factors. The color changing of foliage trees’ leaf resulted from these comprehensive factors, We must fully respect them in landscape design. Meanwhile, we should make of the bionomics and ecologic habitus of these trees, and make sure to let them show vivid colors and the most beautiful landscape effictiveness in urban environment, ensure the landscape designs more scientific and artistic.更多还原