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论述了云冷杉林分的采伐强度。分析了云冷杉林木枯死及风倒、风折的原因。提出云杉冷林分择伐强度应为伐前蓄积量的20-25％是可行的。
The harvesting intensity of spruce stands was discussed. The reason why the fir forest of spruce was dead and wind fell and the wind break was analyzed. It is feasible to propose that the cutting density of spruce cold forest should be 20-25% of the pre-harvest volume.