【摘要】 论述了黑龙江省森工林区当前所出现的。两危"是由于历经半个世纪的过量采伐，使森林一系列内在结构失调所致。提出治危兴林．进行森林分类经营和实施天然林保护。程的主要任务．就是调整森林资源结构；提出了土地利用结构、林种结构、森林经营周期结构、森林起源结构、优势林分结构、宏观的林分组成树种结构、林分龄组结构、林分密度结构、径阶结构的调整指标和对策等。更多还原

【Abstract】 Based on a lot of data. the forest resource crisis and the forestry economic dangerous situation intile forest region of Heilongjiang province caused by overcutting over 50 years and the misadjustment of forest internal structure were expounded. It was suggested that the main task of getting rid ofthe crisis and developing forestry. realizing the forest classification management and carrying out theprotective engineering of natual forests was to regulate the forest resources structure. It was proposedtile adjusting target and regulating game for the structures of soil utilizing category of forest. the periodof forest management. the origin of forest. dominant stand. the species of marco stand composition.stand age. stand density and diameter class.更多还原