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globalchange

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grasslands(194)
carbon(68)
vegetation(59)
conservation(53)
biomass(36)
forests(36)
precipitation(35)
nitrogen(28)
landscape(27)
soils(27)
carbon dioxide(26)
density(23)
population(19)
organic carbon(18)
agriculture(14)
wetlands(14)
surface water(13)
deserts(11)
vegetation cover(11)
drought(10)
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