From aspects of molecular ecology, population ecology, rejuvenation and cutting propagation, the conservation and utilization of B.
从分子生态学、种群生态学、更新复壮及扦插繁殖角度系统研究了珍珠黄杨资源的保护与利用。
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。
In this paper, embryonic development, parasitizing behavior of the parasitical insect and population rejuvenation after successive rearing with the pupa of Tenebrio molitor were studied.
本研究共分三部分，即管氏肿腿蜂对重要的人工扩繁中间寄主黄粉甲蛹寄生行为的研究；
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