Very little vegetation is found at ground level except for occasional shrubs and small trees. Near the river banks and on hillsides we can find the jungle. The climograph shows this biome to be always hot and humid. In the rainforest bacteria and other microorganisms are always very active. They consume matter quickly on the forest floor.
Plants are also very active.
They grow fast, and they take nutrients from the soils. So the rainforest soils are very infertile. Agriculture is difficult to maintain so farmers must move from place to place in search of fertile soils. Their crops take the few remaining nutrients out of the soil. Many farmers must move after only three years in one place.