Tropical and Temperate Rainforest

Tropical and Temperate Rainforest - Julia Nan, Eileen Yeh,...

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Julia Nan, Eileen Yeh, Michael Li, Megan McArthur 9/21/08 Mrs. Littles Per: 3 Biome Project: Tropical and Temperate Rainforest Location Tropical rainforest only covers a small amount of the earth. Tropical rainforests are generally found in Central America, The Amazon of South America, Central Africa, Madagascar, Southeast Asia, South Asia and Australasia. The Amazon has the largest tropical rainforest, and Central Africa has the second largest. Temperate rainforest occupies even smaller amount of area than that of the tropical rainforest. Temperate rainforest are found along the northwestern coast of North America from northern California though southern Alaska, small areas in southern Chile, New Zealand, Australia East Asia and a few other places around the world. Unlike the tropical rainforest, temperate rainforest are located in the temperate zone rather than tropical zone. Climate The average temperature year-round for tropical rainforest is about 77 to 88 degrees Fahrenheit with no noticeable seasonal changes. The precipitation often exceeds 100 to 400 inches a year. However, there is usually a brief season of reduced precipitation followed by a large amount of precipitation. You can expect rain in 1/3 of the year. The humidity in the tropical rain forest will never be lower than 80%. In the temperate rainforest, The average annual temperature is never below 32° F, and the rainforest may have average annual temperatures around 65° F. The precipitation averages from 50-60 inches of rainfall a year. Plant Life There are four layers of vegetation presented in the rainforests: 1. Emergent Layer – this layer includes tall trees with mushroom crowns. These trees enjoy the greatest amount of sunlight and can endure high temperatures, low humidity, and strong winds. Most plants are the tallest trees of the rainforest 2. Canopy - This layer of the forest and forms a roof over the two remaining layers. Most canopy trees have smooth, oval leaves that come to a point. It's a maze of leaves and branches. Most plants are tall trees and air plants 1
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3. Understory - Little sunshine reaches this area so the plants have to grow larger leaves to reach the sunlight. The plants in this area are less than 12 feet. Most plants are ferns and shrubs 4. Ground layer - Almost no plants grow in this area, as a result because hardly any sun reaches the forest floor. Things decompose very fast, for example a leaf that might take one year to
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This note was uploaded on 11/05/2011 for the course ECON 101 taught by Professor Graham during the Spring '08 term at N. Colorado.

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Tropical and Temperate Rainforest - Julia Nan, Eileen Yeh,...

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