论文部分内容阅读
山坡下部和溪旁的华山松林,天然更新良好,草类、灌木华山松林次之,峭壁华山松林和竹子华山松林最差。采伐迹地上的更新幼苗幼树组成复杂,非目的树种占有一定比重。此外,分析了采伐方式、集材方式、林分郁闭度、枯落物厚度,土壤厚度,地形、下木及活地被物与华山松天然更新的关系,提出经营利用秦岭林区华山松林应注意的问题。
Huashan pine forest in the lower part of the hill and beside the brook, natural regeneration is good, grass, shrub Huashan pine followed, cliff Huashan pine and bamboo Huashan pine is the worst. The young saplings on the deforested land are complex and non-target tree species occupy a certain proportion. In addition, the relationship between harvesting methods, timbering methods, canopy density, litter thickness, soil thickness, topography, natural wood and ground cover and natural regeneration of Pinus armandii was analyzed. Should pay attention to the problem.