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Layers of the Rainforest

Tropical rainforests have four layers:

 

Emergent Layer:This is the top layer. it consists of giant trees thrust above the dense canopy layer and they have huge mushroom-shaped crowns. These trees enjoy the greatest amount of sunlight but also must endure high temperatures, low humidity, and strong winds.

Canopy Layer:This middle layer has trees with broad, irregular crowns that form a tight, continuous canopy 60 to 90 feet above the ground. The branches are often covered with other plants and tied together with vines (lianas). The canopy is home to 90% of the organisms found in the rain forest.

Understory:This layer receives only 2-15% of the sunlight that falls on the canopy layer.  The understory is a darker place and contains young trees and leafy herbaceous plants that tolerate low light. Many popular house plants come from this layer.

Forest Floor:This bottom layer receives less than 2% of the sunlight and consequently, little grows here except plants adapted to very low light. On the floor is a thin layer of fallen leaves, seeds, fruits, and branches that very quickly decomposes. Only a thin layer of decaying organic matter is found, unlike in temperate deciduous forests.

          Seasonse. Double click me.

The rainforests have two seasons, wet and dry. The wet sesons being late spring, summer, and early falll while dry seasons being late fall, winter, and early spring. They are called wet and dry because there isn't much change in the temperature all year.

               Climate. Double click me.

Rainforests belong to the tropical wet climate group. The temperature in a rain forest rarely gets higher than 93 °F (34 °C) or drops below 68 °F (20 °C). The average humidity is between 77 and 88% and rainfall is often more than 100 inches a year.

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