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19 de oct. de 2023 · Photograph by James P. Blair, National Geographic. A rainforest is an area of tall, mostly evergreen trees and a high amount of rainfall. Rainforests are Earth’s oldest living ecosystems, with some surviving in their present form for at least 70 million years.
The largest areas of rainforest are tropical or temperate rainforests, but other vegetation associations including subtropical rainforest, littoral rainforest, cloud forest, vine thicket and even dry rainforest have been described. Tropical rainforest Worldwide tropical rainforest climate zones.
29 de mar. de 2019 · Rainforests are home to over half of the world's plant and animal species. Learn about tropical and temperate rainforests, how they contribute to the global ...
16 de ago. de 2017 · Rainforests, as you might guess, are forests that receive a great amount of rainfall—more than 80 inches each year. Composed of millions of unique ecosystems, rainforests are the central nervous system of our planet—a hotbed of evolution, life, and diversity.
14 de ago. de 2020 · RAINFOREST FACTS. Tropical forests presently cover about 1.84 billion hectares or about 12 percent of Earth's land surface (3.6% of Earth's surface). The world's largest rainforest is the Amazon rainforest; Brazil has the largest extent of rainforest cover, including nearly two-thirds of the Amazon.
Este artículo trata sobre el clima y la biodiversidad de uno de los biomas más diversos y emblemáticos de la Tierra: la selva, o bosque lluvioso tropical. El bioma de la selva tiene cuatro características principales: precipitación lluviosa anual muy alta, altas temperaturas promedio, suelos pobres en nutrientes y niveles altos de ...
15 de may. de 2019 · Rainforest loss. Deforestation is endangering rainforests worldwide, driven by logging, mining, agriculture, and ranching. About 17 percent of the Amazonian rainforest has been destroyed over the ...
