论文部分内容阅读
杜鹃冷杉林是白龙江林区的重要森林类型之一。由于杜鹃冷杉林多分布在白龙江林区的后山带海拔3000米以上的高山上,生态环境高寒,是一种接近于森林分布上限的森林类型,对它的开发利用、采伐方式、更新方式以及其它经济和社会效益,有必要作较深入的研究。为掌握杜鹃冷杉林的天然更新情况,及其皆伐迹地更新(包括天然更新和人工更新)的难易程度,确定该类型森林合理的采伐方式和更新方式,我所于1986年度进行了本项调查。现将调查情况报告如下:
Azalea fir forest is one of the important forest types in Bailongjiang forest area. Because the Azalea fir forest is mostly distributed in the mountainous mountainous area of Bailongjiang forest zone with an elevation of 3000 meters above sea level, the ecosystem is alpine. It is a type of forest close to the upper limit of forest distribution. Its development and utilization, harvesting method, renewal method and Other economic and social benefits, it is necessary to make more in-depth study. In order to understand the natural regeneration of the conifers and the ease of updating their deforestation (including natural and artificial regeneration), and to determine the reasonable harvesting and updating methods for this type of forest, I carried out this item in 1986 survey. The investigation report is as follows: