关于rain forest的英文短篇

关于rain forest的英文短篇
关于rain forest的英文短篇

关于rain forest的英文短篇
你要哪里的RAINFOREST?有亚洲的,有美洲的,有关保护RAINFOREST的,有关RAINFOREST的重要性的都有.
给你一个关于亚马逊地理环境的吧.要其他的去我给你的地址找找.
Amazon has an equatorial humid climate,or,in other words,a hot area with frequent rains.The pattern of the rains distribution varies:some cities,like São Gabriel da Cachoeira (in Amazonas State) are rainy than others,like Rio Branco city (in Acre State).It occurs because São Gabriel da Cachoeira is located exactly at the Ecuador Line.
The Forest embraces 25% South America area,reaching nine countries:Brazil,French Guyana,Suriname,Guyana,Venezuela,Colombia,Ecuador,Peru and Bolivia.The greater part of the forest,62%,is located in Brazil,and the remaining 38%,in the other countries.
In Brazil,the Amazon RainForest is called Legal Amazon,and embraces about 60% of the Brazilian territory,spreading over the following states:Acre,Amazonas,Pará,Rondônia,Roraima,Tocantins,west of Maranhão and north of Mato Grosso.This area is equivalent to a half of the European continent,with an area of 5,026,552 km2,with an estimated population (in 1990) of 17,193,446 inhabitants.It could be the sixth largest country of the world!

Rainforests are characterized by high rainfall, with definitions setting minimum normal annual rainfall between 2,000 mm (about 100 inches or 200 centimetres) and 1700 mm (about 67 inches). The soil c...

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Rainforests are characterized by high rainfall, with definitions setting minimum normal annual rainfall between 2,000 mm (about 100 inches or 200 centimetres) and 1700 mm (about 67 inches). The soil can be poor because high rainfall tends to leach out soluble nutrients.
Rain forests are home to two-thirds of all the living animal and plant species on the planet. It has been estimated that many hundreds of millions of new species of plants, insects, and microorganisms are still undiscovered and as yet unnamed by science. Tropical rain forests are called the "jewel of the earth", the "Earth's lungs", and the "world's largest pharmacy" because of the large amount of natural medicines discovered there.
Despite the growth of flora in a rainforest, the actual quality of the soil is quite poor. Oxisols, infertile, deeply weathered and severely leached, have developed on the ancient Gondwanan shields. Rapid bacterial decay prevents the accumulation of humus. The concentration of iron and aluminium oxides by the laterization process gives the oxisols a bright red color and sometimes produces minable deposits (e.g. bauxite). On younger substrates, especially of volcanic origin, tropical soils may be quite fertile.
The undergrowth in a rainforest is restricted in many areas by the lack of sunlight at ground level. This makes it possible for people and other animals to walk through the forest. If the leaf canopy is destroyed or thinned for any reason, the ground beneath is soon colonised by a dense tangled growth of vines, shrubs and small trees called jungle.

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