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Current Search ((ALL：Ma, Qin))
Filters ((主题词：forests))
forests(2)
pines(2)
temperate forests(2)
birches(1)
carbon sequestration(1)
climate change(1)
conifers(1)
deserts(1)
flowering plants(1)
forest ecology(1)
palynomorphs(1)
poaceae(1)
pollen(1)