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油松是黄土高原的乡土树种。它适应性强,生长稳定,寿命长,蓄水保土防护作用大,有利于改造低产林分,不仅是黄土高原营造防护林和水土保持林的优良树种,也是培育用材林的主要树种,在“三北”防护林体系建设中具有重要作用。近几年来,黄土高原各地积极选用油松造林,取得了良好效果,积累了丰富经验。为了加速绿化黄土高原的步伐,我们对这一地区的油松造林进行了初步调查。谨将搜集的有关造林技术措施方面的资料,整理如下,供作参考。
Pinus tabulaeformis is a native species of the Loess Plateau. It is adaptable, stable growth, long life, large reservoir of water and soil protection, is conducive to transforming low-yielding stands, not only is the Loess Plateau to create shelterbelt and soil and water conservation forest excellent tree species, timber cultivation is also the main species, in the “three North ”shelterbelt system has an important role. In recent years, the loess plateau afforestation has been actively selected throughout the Loess Plateau, and good results have been obtained and rich experience has been accumulated. In order to accelerate the pace of greening the Loess Plateau, we conducted a preliminary survey of Pinus tabulaeformis afforestation in this area. The information we collected about afforestation technical measures is collated below for your reference.