疏伐强度影响抚育采伐的频率(重复期)和经济指标。抚育采伐强度越高以及间隔期越长,经济效果越好,强度抚育采伐(采伐蓄积超过35%)适于多林地区。特别是混交林分的强度疏伐,证明是有效的。正象某些研究者指出的那样,强度抚育采伐的积极方面就在于被疏伐的林分与未疏伐的林分相比第一年,春材形成要快10-14天,並且由于改善了光照条件和提高了温度,形成层的活动要早10-20天。全苏林业机械化研究所提议在多林地区进行高强度团状抚育采伐。一九七二年于克拉斯 The thinning intensity affects the frequency of felling and logging (repetition period) and economic indicators. The higher the tending and harvesting intensity and the longer the interval are, the better the economic effect is, and the stronger tending and logging (more than 35% of the harvesting volume) is suitable for the multi-forest area. In particular, the intensity of mixed forest thinning proves to be effective. As some researchers have pointed out, the positive aspect of intensive tending is that in the first year of thinning and springing, the first year of springing is 10-14 days faster, and due to the improvement The light conditions and increased temperature, the formation of layers of activity as early as 10-20 days. All-Su Forestry Mechanization Institute proposes to carry out high-intensity cluster tending in the Duolin area. 1972 in Claras