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油松是我国北方地区的主要造林树种之一,是营造水土保持林和用材林的重要常绿针叶树种。油松具有较高的综合利用价值,其材质坚硬、耐腐蚀、纹理直、抗压性强。随着人工林的发展,油松越来越多地栽植于低海拔的荒山丘陵和黄土丘陵地区。一、育苗为提高苗木质量,改善地面光照条件,把2年生的油松播种苗按每公
Pinus tabulaeformis is one of the main afforestation species in northern China, and is an important evergreen coniferous species for soil conservation and timber forest. Pine has a high value of comprehensive utilization, its hard material, corrosion resistance, texture straight, strong compression. With the development of plantation, Pinus tabulaeformis is planted more and more in the low altitude hills and hilly areas. First, nursery To improve the quality of nursery stock, improve the ground light conditions, the 2-year-old pine seeding seed per public