刺槐是辽宁省西部地区营造薪炭林的主要树种。喀左县现有刺槐林达9333hm~2。但由于在自然和人为诸因素的影响下,已有4667hm~2的刺槐林变成了残次林或疏林。为了挽救这些残次林,尽快恢复生机,缓和全县用材和烧柴的紧缺局面,从1988年开始,对刺槐残次疏林,通过人工断根促进根蘖,恢复林相,增加生物量的试验,取得显著成绩。 Robinia pseudoacacia is the main species of fuelwood forest in the western Liaoning Province. The existing acacia forest in Qazuo County reaches 9333hm ~ 2. However, 4667 hm 2 of Robinia pseudoacacia forest has become the second or the second sparse forest under the influence of natural and man-made factors. In order to save these incomplete forests, restore their vitality as soon as possible and ease the shortage of timber and firewood in the county. Beginning from 1988, on the secondary sparse forests of acacia locust, root tillers were promoted by artificial root-cutting, the restoration of forest facies and the increase of biomass, Achieve remarkable results.