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通过对阔叶红松林区典型样地林木树种多样性指数调查和计算得出，适度择伐的林分树种多样性指数高，次生阔叶林、未受干扰的成熟阔叶红松母树林、阔叶红松林强度择伐迹地、人工落叶松林，树种多样性指数顺次降低；以择伐为主的黑龙江省穆梭林区，２０多年来，森林越采越多，森林动物蕴藏量是其林区面积所占比例的３倍多。大兴安岭区１９８７年特大森林火灾后得出，原在樟子松林内严重受压的山杨，在火灾后森林恢复中有重要作用，森林经营中应适当保留针叶纯林内混生的少量阔叶树。树种多样性指数高，有利于森林受到重大外力破坏后的恢复
Through the investigation and calculation of the tree species diversity index in the typical plots of broad-leaved Korean pine forest, the index of species diversity of moderate-selective cutting stands is high, the secondary broad-leaved forest, undisturbed mature broad-leaved Korean pine forest, In the past 20 years, the more forests were harvested, the reserves of forest animals were in the forest of Mu Lin, Heilongjiang Province. District area accounted for more than 3 times the proportion. After the super-large forest fire in Daxinganling District in 1987, it was concluded that the aspen, which was severely compressed in the Pinus sylvestris var. Mongolica forest, played an important role in the restoration of the forest after a fire. In the forest management, a few broad-leaved trees mixed in the conifer pure forest should be properly preserved. The high species diversity index is conducive to the restoration of forests after being damaged by major external forces