根据冲积物孢粉恢复冀北山地古植被的意义

许清海, 阳小兰

ANCIENT VEGETATION INTERPRETED BY ALLUVIAL POLLEN AT NORTHERN MOUNTAIN AREA OF HEBEI PROVINCE

Xu Qinghai, Yang Xiaolan

地理科学 . 1998, (5): 486 -492 . DOI: 10.13249/j.cnki.sgs.1998.05.486