A few facts on rainforests (Новые факты)
презентация к уроку по английскому языку по теме

A few facts on…RAINFORESTS
ENGLISH, №01/2012
Rainforests are forests that experience a high level of rainfall.
Scientists believe that there may be millions of plant and insect species in rainforests that have yet to be discovered.
Rainforests used to cover 14% of the Earth’s surface but due to deforestation now only cover around 6%.
A wide variety of animals live in rainforests, including birds, snakes, insects, jaguars, cougars, chameleons, turtles, frogs, and many more.
Temperate rainforests lie in the temperate zones (between the tropics and the polar circles) of the globe. They are found in a few regions scattered around the world such as western North America, south-eastern Australia and New Zealand.
Tropical rainforests lie in the tropics (around 28 degrees north or south of the equator). They are found in many areas near the equator such as Asia, Africa, Central America and the Pacific Islands.
Tropical
Temperate
Temperatures
warm
cool
Number of tree species
many (hundreds)
few (10-20)
Types of leaves
broadleaf
needles
Age of trees
50-100 years
500-1000 years
Epiphytes
lots of different kinds including orchids and bromeliads
mostly mosses and ferns
Decomposition rate
rapid
slow
A number of tribes in areas such as central Africa and Brazil still live in rainforests, having no contact with the outside world.
The Amazon rainforest is the largest tropical rainforest in the world, covering over five and a half a million square kilometres (1.4 billion acres).
20% of the world’s bird species live in the Amazon rainforest.
There are also a number of dangerous species living in the Amazon rainforest such as the cougar, jaguar and anaconda.
In both 2005 and 2010 the Amazon rainforest suffered severe droughts that killed off large amounts of vegetation in the worst affected areas.
While the protection of the Amazon rainforest remains an issue, deforestation rates have been reducing while areas of conserved land have been increasing over the last 10 years.
Источники иллюстраций:
Slide: 1 http://upload.wikimedia.org/wikipedia/commons/a/a4/Ara_macao_-_two_at_Lowry_Park_Zoo.jpg Slide: 6 http://www.groundtruthtrekking.org/static/uploads/photos/Erin%20in%20the%20Queets%20Rainforest%20-%20Olympic%20Peninsula,%20WA.jpgrwwnv_/Erin%20in%20the%20Queets%20Rainforest%20-%20Olympic%20Peninsula,%20WA.jpg Slide: 7 http://www.pulsarmedia.eu/data/media/867/Tropical%20Rainforest,%20Lacey%20Creek,%20Queensland,%20Australia.jpg Slide: 8 http://mbgnet.net/sets/rforest/types.htm Slide: 10 http://3.bp.blogspot.com/-wIIC45aZ1iw/TrrnS3QnHCI/AAAAAAAABYw/eyAJLgLiTcE/s1600/Amazona_rainforest.jpg Slide: 12 http://st-listas.20minutos.es/images/2009-09/149189/1678363_640px.jpg?1253981814 Slide: 13 http://www.tucsonsentinel.com/files/entryimages/4163567741_bd0ecd3be9_b.jpg Slide: 14 http://multimedia.pol.dk/archive/00379/BRAZIL_AMAZON_DESTR_379372a.jpg Rest: fotobank Shutterstock