Nitrogen Cycle

Nitrogen Cycle in the Tropical Rainforest

Nitrogen is a necessary element for all living things. In the tropical rainforest the nitrogen cycle goes like this: Firstly the nitrogen in the atmosphere has to be fixed so that it can be used, so tiny nitrogen fixing bacteria in the soil and in the nodules in plants roots. When a plant dies it puts nitrogen back into the soil and water, or when an herbavore or carnivore dies or poops, the nitrogen is also returned. Then the Plants absorbs the nitrogen back in from the soil and the cycle starts again. Until denitrifying bacteria return it to the atmosphere. Where it all starts again.