色叶树种对丰富园林绿化景观具有重要的意义，但重庆园林绿化中的色叶树种叶片成色效果却不尽人意。
Colour-leaved trees are very important for enriching garden landscape, but the effect of colour leaves is not so satisfied in Chongqing.
乌鲁木齐市彩叶树种共有17科46种，其中秋色叶树种比例最大（39种，占总数的84.78%），常色叶（4种）和春秋色叶树种类（3种）很少。
There are 46 kinds of colored-leaf trees in Urumqi city which belong to 17 family, among which the autumn colored-leaf trees account for maximum proportion(39 species, accounting for 84.78% of total);
光合作用直接影响彩叶树种的生长和叶片色素含量，进而影响彩叶树种的叶色表现。
Photosynthesis directly influences the growth speed and leaf pigment content, and further affects the color expression of leaves of the colored-leaf trees.
光合作用直接影响彩叶树种的生长和叶片色素含量，进而影响彩叶树种的叶色表现。
Photosynthesis directly influences the growth speed and leaf pigment content, and further affects the color expression of leaves of the colored-leaf trees.
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