Tropical rain forests in South America last of three times the global warming event that occurred in the past. Temperature rise of 2-6 degrees Celsius during the 21st century is not expected to affect the existence of this region.
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| Previous global warming events led to more diverse tropical forests. This is a view of the lowland tropical forest on Barro Colorado Island in Panama. (Picture from: http://phys.org/) |
Temperature fluctuations compared with the abundance of tropical plants from time to time. "The fear is that the researcher during the tropical rain forests would be destroyed by global warming being unreasonable," said Jaramillo.
In the Middle Cretaceous period, which occurred 120 million years ago, is one of the most heat in the earth's age. At that time, the temperature of South America that is crossed by the equator rise 5-7 degrees Celsius. Paleogene Eocene period, which lasted 55 million years ago also recorded an increase in temperature of 3-5 degrees Celsius in less than 10 thousand years. "During the summer, actually increased biodiversity," he said.
The findings that published in the journal Annual Review of Earth and Planetary Science. The ideas contained in it are not in line with the assumption that most of the researchers mentioned increase in global temperatures threaten the existence of the tropical rain forest.
Further observations showed that the bare areas due to drought failed to recover to normal. "Droughts are more frequent and longer would damage the structure and function of the Amazon forest," said environmental researcher from the University of California, Los Angeles, Sassan Saatchi as its concerns.
Different scenarios concerning the fate of tropical rain forest at the end of the 21st century cast a big question about climate change mitigation suitable for this region. *** [EKA | FROM VARIOUS SOURCES | PHYSORG | MONGABAY | ANTON WILLIAM | KORAN TEMPO 4248]
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