Nanjing area is the northern boundary of northern subtropical zone where some evergreen broad-leaved species are distributed in.
南京地区地处亚热带北缘，是一些常绿阔叶树种自然分布的北界。
It can be considered that Nanjing is the key area of introduction and distribution of cold-resistant evergreen broad-leaved species.
可以认为南京地区是耐寒常绿阔叶树种引种分布的关键地区。
Wintering adaptability and electric conductivity were used to analyze the ability of 6 evergreen broad-leaved species to withstand the rigors of low temperature.
选取南京地区已引种成功的6种常绿阔叶树种，运用越冬适应性观察与电导法作为对比测试手段，分析这些树种的抗寒能力。
应用推荐