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色赤杨(Alnus tinctoria Sarg)又称山赤杨,属桦木科(Betulaceae),是我省珍贵树种之一。它枝叶繁茂,适应性强,生长迅速,干形较直,材质较好,呈红棕色,可做檩梁、家具和造纸用材。木材水浸后,耐腐力增强,可做水利工程用材。其根瘤多,侧根多,可改良土壤和保持水土;抗尘能力较强,放叶早落叶晚,适做“四旁”及城市绿化树种,萌芽力很强,即使受人为的机械损伤,也容易恢复成林,又是较好的薪炭林树种;无论鲜叶或落叶皆可做养猪的饲料,但羊不喜欢吃,可做为牧区的防护林树种,是一个综合利用价值很高的好树种。
Alnus tinctoria Sarg, also known as alder, belongs to the family Betulaceae and is one of the precious tree species in our province. It lush foliage, adaptability, rapid growth, dry-shaped straight, better material, reddish brown, can be used beam, furniture and paper materials. After the wood flooding, corrosion resistance increased, can do water conservancy engineering timber. Its root nodules, lateral roots and more, can improve the soil and water and soil conservation; strong ability to resist dust, leaves late leaves early, appropriate to do “around” and urban greening trees, sprouting strong, even by man-made mechanical damage, but also easy Restoration forest, forest firewood is better; regardless of fresh leaves or leaves can be pig feed, but the sheep do not like to eat, can be used as pasture shelterbelt species, is a comprehensive utilization of high value good species .