Click here for a video description of the site. Abstract The Brazilian Amazon region is an unique area.
According to the authors, since the s, when studies conducted by Professor Eneas Salati demonstrated that the Amazon generates approximately half of its own rainfall, the question has been raised of how much deforestation would be required to degrade the region's hydrological cycle to the point at which it would be unable to support rainforest ecosystems.
The first models developed to answer this question showed that the tipping point would be reached if approximately 40 percent of the region were deforested. In this case, central, southern and eastern Amazonia would experience diminished rainfall and a lengthier dry season.
Moreover, the vegetation in the southern and eastern parts of the region would become similar to savanna. In recent decades, new factors in addition to deforestation have affected the hydrological cycle.
These factors include climate change and indiscriminate use of fire by agriculturists during the dry season to eliminate felled trees and clear areas for crops or pasture.
The combination of these three factors indicates a shift to non-forest ecosystems in the eastern, southern and central portions of the Amazon region at between 20 percent and 25 percent deforestation, according to the authors.
These events, together with major floods inandsuggest the entire Amazon system is oscillating.
When you have a megadrought combined with widespread use of fire, the forest's capacity for regeneration diminishes. For the coordinator of the FAPESP-funded institute, besides halting deforestation completely in the Amazon, Brazil must fulfill its Paris Accord undertaking to reforest 12 million hectares nationwide bywith the Amazon accounting for 5 million hectares.Nov 30, · Amazon Deforestation Rate Up 29 Percent From Last Year, the Amazon rainforest was deforested at an estimated rate of 7, square kilometers (more than 3, square miles).
Deforestation is the permanent destruction of forests in order to make the land available for other uses. An estimated 18 million acres ( million hectares) of forest, which is roughly the size.
Deforestation is mushrooming in the Brazilian Amazon, according to Imazon.
Imazon’s data shows deforestation hit 1, square kilometers in June , the highest level since the NGO began. In addition to protecting biodiversity, the Amazon Region Protected Areas program has demonstrated that a system of well-managed and sustainably-financed protected areas contributes to reduced CO2 emissions from deforestation.
Amazon Deforestation Takes a Turn for the Worse. A new report reveals an uptick in the destruction of Brazil’s rainforests. Introduction Deforestation of the world's rainforests has numerous impacts on the environment and is occurring at alarming rates.
As a result, species extinction has become a daily occurrence.