在乌克兰和俄罗斯橡林地带的无林地上,大多数研究者推荐营造橡树(即栎类)混交林。因为橡树混交林与橡树纯林相比,具有较高的产量和较强的抗性。但是,在营造高产和有抗性的橡树混交林时,有关伴生树种的选择、树种的混交方式和配置原则等的研究很不够,特别是对橡树和其伴生树种相互影响方面的研究相当薄弱,对此过程的数量监定报导甚少。 On the woodlands in Ukraine and Russia in the gum zone, most researchers recommend the creation of oak (or oak) mixed forests. Because oak mixed forest and oak pure forest compared with higher yield and strong resistance. However, when creating high-yielding and resistant oak mixed forests, the studies on the selection of associated tree species, the way of mixed species and the allocation principle of the tree species are not enough. In particular, the research on the interaction between the oak tree and its associated tree species is rather weak, There is very little report on the quantity of this process.