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泡桐是适于农田和“四旁”栽植的优良树种,在华北平原大力发展,具有很大的经济意义。但是,这种树并非到处都可以栽植,只有种植在它的适生区,才能充分发挥其速生丰产的特性。因此,研究和探讨泡桐的适生条件及生长规律,为进一步发展泡桐提供科学的依据,是很有必要的。1974年河南省农林科学院林科所下达了本项研究任务,笔者作为课题负责人同
Paulownia is suitable for farmland and “around” planting fine tree species, in the North China Plain to develop energetically, with great economic significance. However, this tree can not be planted everywhere. Only in its habitat can it give full play to its fast growing features. Therefore, it is necessary to study and explore the suitable conditions and growth rules of Paulownia to provide a scientific basis for the further development of Paulownia. Henan Institute of Agriculture and Forestry Academy of Forestry in 1974 issued the task of this study, the author as the project leader with