花粉源范围研究进展1 |
许清海, 张生瑞 |
Advance in Pollen Source Area |
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 |
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