苏共二十六大提出的国民经济任务之一是提高各种产品的质量。林业部门的主要产品是未来的森林及其质量成分和生产力、全国城市和居民点周围林分的娱乐性质。森林树种的引种对顺利完成这个任务能够发挥重要作用。乔木植物的引种由来已久,但过去带有自发性质。现在已经研究出了包括森林树种在内的植物引种的严整理论,它可以使我们有计划地实施这个工作,给林业带 One of the national economic tasks proposed by the 26th CPC National Congress is to improve the quality of various products. The main products of the forestry sector are the future nature of forests and their quality components and productivity, the amusement nature of the forests around the country’s cities and settlements. The introduction of forest species can play an important role in successfully accomplishing this task. Arboreal plants have been introduced for a long time, but spontaneously in the past. A rigorous theory of plant introduction, including forest tree species, has now been developed that will enable us to carry out this work in a planned manner to give forestry belt