Arboreal pollen in alluvium mainly came from the surface pollen fallen on the ground in spring which was carried by sheet flow during the floods.
洪水期冲积物中的木本植物花粉主要是由雨水片流将春季落入表土的花粉带入河水中所致。
Arboreal pollen in alluvium mainly came from the surface pollen fallen on the ground in spring which was carried by sheet flow during the floods.
洪水期冲积物中的木本植物花粉主要是由雨水片流将春季落入表土的花粉带入河水中所致。
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