Based on the distributions of these species the paper puts forward 5 basic characteristics of Bailongjang woody plants flora, i. e. 1. diverse species, 2. ancient origin, 3. temperate nature and relations of the tropics, 4. here mixing various woody plant
Based on the distributions of these species the paper puts forward 5 basic characteristics of Bailongjang woody plants flora, i. e. 1. diverse species, 2. ancient origin, 3. temperate nature and relations of the tropics, 4. here mixing various woody plant
根据这些种的地理分布，提出白龙江流域木本植物区系的5个基本特征：1．种类丰富；2．起源古老；3．温带性质；4．南北交汇，东西兼容的过渡特征；5．特有植物繁多。