Since the isozyme techniques were used in genetic studies of forest tree population, great progress has been made.
本文评述了用同工酶技术研究林木群体遗传变异的情况，并对研究中应注意的几个问题进行了讨论。
The method of dynamic comparable tree classification was introduced to study the population structure of natural Japanese red pine forest in Northeast China.
本文采用动态可比性林木分级法，研究了东北东部天然赤松林的种群结构。
The forest area of classic garden and ancient tree population should focus on the rejuvenation and pest control.
古树名木和古典园林中的森林区域要重点考虑古树的复壮措施及病虫害的防治等。
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