• 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.

    洪水期冲积中的木本植物花粉主要雨水春季落入表土的花粉带入河水所致。

    youdao

  • 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.

    洪水期冲积中的木本植物花粉主要雨水春季落入表土的花粉带入河水所致。

    youdao

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