花粉源范围研究进展1
许清海, 张生瑞

Advance in Pollen Source Area
Xu Qinghai, Zhang Shengrui
图3 内蒙古典型草原区不同风速条件下相关花粉源范围 a 年平均风速3.5 ms;b 极大风速29ms
Fig.3 Relevant source areas of pollen under different wind speeds in typical steppe area of Inner-Mongolia a Mean annual wind speed 3.5 ms; b Maximum wind speed 29 ms