管涔林区径级择伐可行性调查王琪杨枢平＊管涔林区系属山西省重要的木材生产基地之一。在采伐作业过程中，如何合理确定采伐木的径级范围，以保证在森林各种有益效能仍然能够正常发挥的前提下，获得最大的经济效益，这是当前林区适应市场经济需求，增强经济实力的最为现... Feasibility Study on Diameter-level Selective Cutting in Guanlin Area Wang Qi-yang, Yang Shu-ping * Guan-lin is one of the most important timber production bases in Shanxi Province. In the process of harvesting, how to rationally determine the diameter range of harvested wood, so as to ensure the maximum economic benefits can be obtained under the premise of all kinds of forest benefits still being able to function normally. This is the current situation of forest area to adapt to market economy and enhance economy The strength of the most current ...