断根促萌快速改造刺槐疏林为了尽快恢复林相，改造刺槐疏林，辽宁省喀左县水土保持总站李京图等采取断根促萌措施取得满意效果。平均株数由１１１０株／ｈｍ￣２（分布不均）发展到１４６１０／ｈｍ￣２，为原株数的１３倍。比工程造林降低营林费用３３％。断根时间：３月... Root pruning can quickly transform acacia sparse forest In order to restore the forest facies as soon as possible, transformation of acacia sparse forest, krabz County of Liaoning Province Soil and Water Conservation Station Li Jingtu to take root pruning measures to obtain satisfactory results. The average number of plants from 1110 plants / hm ~ 2 (uneven distribution) to 14610 / hm ~ 2, 13 times the number of original plants. Reduce forest costs by 33% over afforestation. Root out time: March ...