油松是我国北方的主要造林树种。耐瘠薄干旱,适应性广。又是一个强阳性树种,所以适宜与它进行混交的树种较难选择。过去营造的油松纯林,病虫害日趋严重,因此,积极开展油松混交林的营造是十分必要的。现结合辽宁省具体情况,对营造油松(包括樟子松和赤松)混交林的树种选择和混交方式等提出以下意见,供造林参考。 Pinus tabulaeformis is the main afforestation species in northern China. Resistance to poor drought, wide adaptability. It is also a strong positive species, so it is more difficult to choose the species that is suitable to be mixed with it. In the past, the pure stands of Pinus tabulaeformis were becoming increasingly serious due to pests and diseases. Therefore, it is very necessary to actively develop the mixed stands of Pinus tabulaeformis. Now combined with the specific circumstances of Liaoning Province, to create the Pinus tabulaeformis (including Pinus sylvestris var.mongolica) mixed forest species selection and mixed methods such as the following comments for afforestation reference.