论文部分内容阅读
长岭县东岭经营林场在搞好杨树采伐更新的同时,通过反复实践,取得了栽培松树的经验,从1974年开始大面积造林,现有松树造林面积11.190亩,其中大部分是樟子松。我县的沙地以固定沙地和半固定沙地为主,分布在西北部。他们在沙地营造樟子松主要掌握以下七个技术环节:一、培育壮苗,保护苗根樟子松造林采用二年生换床苗,成苗要充分木质化,顶芽饱满,根系发达,苗高15~25厘米,根径
Changling County, Dongling Forest Farm do a good job in the poplar harvesting at the same time, through repeated practice, obtained pine cultivation experience, large-scale afforestation since 1974, the existing afforestation area of 11.190 acres of pine, most of them are the Scotch loose. The sand in our county is dominated by fixed sandy land and semi-fixed sandy land, distributed in the northwest. They are in the sand to create the main seven Pinus sylvestris master the following seven technical aspects: First, to cultivate strong seedlings to protect the seedling Pinus sylvestris plantation with two-year-exchange bed seedlings, mature seedlings should be fully lignified, top bud full, developed roots, seedlings High 15 to 25 cm, root diameter