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作为树姿优美、花朵可爱的落叶乔木,合欢在园林中用途极其广泛,可做林荫树、行道树及草坪、绿地的风景树。但由于其幼苗抗寒性差,秋季落叶后需掘苗假植,一般2～3年后才能成苗出圃,育苗成本高。加之其分枝点较低,主干高度一般较矮,使该树种生长快、树形优美的特点在城市绿化中不能得以充分发挥。为此,新疆库尔勒市上产乡于1999年开展了保护地合欢快速育苗的尝试,获得成功。保护地独特的小气候条件(短波光比例少),对植物极为有利。一年生合欢幼苗不仅安全越冬,而且高度比常规育苗高,平均在2米以上,主干粗度一般达2厘米,当年即可成苗。由于质量好,这
As a beautiful tree pose, lovely flowers deciduous tree, Acacia in the garden is extremely versatile, can do the trees, road trees and lawns, green landscape trees. However, due to the poor cold resistance of its seedlings, autumn need to dig seedlings after deciduous planting, usually 2 to 3 years after the nursery out of nursery, nursery high cost. In addition, the lower branch point and the lower trunk height make the tree grow fast and graceful trees can not be fully utilized in urban greening. To this end, Shanglou Township, Korla City, Xinjiang Province, carried out an attempt in 1999 to protect seedlings from rapid seedling development and achieved success. Protection of the unique microclimate conditions (short-wave light ratio), very beneficial to plants. Annual Acacia seedlings not only safe and wintering, but higher than the conventional nursery height, an average of more than 2 meters, the general trunk thickness of 2 cm, then seedlings. Because of good quality, this