amazon_rainforest_亚马逊丛林

lumbering
• The rainforest has long been destroyed by commercial groups for wood materials
lumbering
• The wood is carried to the harbor along the river • Transport downstream by boat on the Amazon river
Common Squirrel Monkey (Saimiri sciureus albigena)
2.birds
More than 1500 bird species are found in the Amazon Basin
Hummingbird feeding on Heliconia flower
The climate in the Amazonian rainforest is warm and humid and the average temperature in the area is about 79 degree Fahrenheit. One of the prominent features of this area is the difference between the temperature during the day and during the night is greater than that of the difference between the seasons.
4. Amphibians
According to the record 695 amphibians has been found in Amazon rainforest
Βιβλιοθήκη Baidu
Blue poison dart frog (Dendrobates azureus)
5. Insects
Over 90% of the animal species in the Amazon are insects, A single square mile of rainforest often houses more than 50,000 insect species
One hectare of rain forest may contain more than 600 species of trees and many different kinds of animals
1.mamals
More than500 species of mammal are found in the Amazon
mining
• The Amazon rainforest has abundant mineral resources
The damage to the rainforest
2
Rain forest play a vital role in lessening global warming
We are losing Earth's greatest biological treasures just as we are beginning to appreciate their true value. Rainforests once covered 14% of the earth's land surface; now they cover a mere 6% and experts estimate that the last remaining rainforests could be consumed in less than 40 years. One and one-half acres of rainforest are lost every second with tragic consequences for both developing and industrial countries. Rainforests are being destroyed because the value of rainforest land is perceived as only the value of its timber by short-sighted governments, multi-national logging companies, and land owners.
Harpy Eagle at Summit Park
3.reptiles
Throughout the Amazon Rainforest, there are over three hundred reptile species
Blunt-headed tree snake
Anole lizard (Anolis sp.) in Peru
The Amazon rainforest consists four layers and each layer has its unique ecosystem and plants and animals are adapted to that. The tallest layer is called the emergent layer, which has trees of approximately 200 feet in height. The other layer is canopy which has smooth oval leaves and have pointed drip tip. This makes the flow of water easy and preventing the growth of mosses and fungi. The layer below the canopy layer is able to get only 5 per cent of sunlight and plants of this layer are uniquely adapted to survive in the shadowy layer. The lowest layer is the forest floor and is almost without any plant. Only 2 per cent of sunlight reaches here.
Protect our land and water
Rainforests play a important role in keeping the soil and the conservation of water.
Eroded, bright-red soils in Betsiboka Estuary, Madagascar. (Photo courtesy of NASA/JSC)
* Nearly half of the world's species of plants, animals and microorganisms will be destroyed or severely threatened over the next quarter century due to rainforest deforestation. * Experts estimates that we are losing 137 plant, animal and insect species every single day due to rainforest deforestation. That equates to 50,000 species a year.
* http://www.worldculturepictorial.com/blog/content/sos-amazon-every-second-we-lose-15-acresrainforests-once-covering-14-earth-land-surface-now
*http://news.bbc.co.uk/2/hi/americas/7360258.stm
However, these precious systems are among the most threatened on the planet. Although the precise area is debated, each day at least 80,000 acres (32,300 ha) of forest disappear from Earth.
Owl butterfly (Caligo idomeneus)
Storage of carbon
the Amazon rainforest evergreen forests make up 10 percent of the world’s land Carbon storage.
Carbon storage of Amazon
• Precipitation
• A average tropical rainforest recieves more than 150cm of rain a year. This is almost 1/8 of an inch per day. Although the rainforest recieves large amounts of rain, not all of it makes it to the forest floor. In fact, less than 30% of the rain fall reaches the forest ground. The tropical rain forest loses 25% of incoming rainwater by evaporation, 25% of rain falls onto the leaves and 40% of it runs down the barks of tree trunks. Seasons in a tropical rainforest are not depicted by the type of weather but by the amount of rainfall. In the chart shown below, March is the most rainiest month for part of the Amazon in Manaus Brazil with about 325 mm of rainfall. (James D,Nations, 17 20 21 61)
Amazon Rainforest
西语 五班 任雯烁
http://bbs.labscn.com/showtopic-33728-1.html
The Amazon Rainforest covers over a billion acres, encompassing areas in Brazil, Venezuela, Colombia and the Eastern Andean region of Ecuador and Peru. If Amazonia were a country, it would be the ninth largest in the world. * The Amazon Rainforest has been described as the "Lungs of our Planet" because it provides the essential environmental world service of continuously recycling carbon dioxide into oxygen. More than 20 percent of the world oxygen is produced in the Amazon Rainforest.