Thirteen other tropical countries or island territories cleared 20 percent or more of their forests between 1990-2005. Ranching is the leading cause of deforestation in the Brazillian Amazon. One is in absolute numbers: total area of forest cleared over a certain period. Logging, both legal and illegal, often follows road expansion (and in some cases is the reason for the road expansion). A pie-chart detailing the driving cause of the deforestation of tropical forests between the years 2000 and 2005 is provided below. Rounding out the top five tropical countries with the greatest total area of deforestation were Indonesia, Sudan, Myanmar, and the Democratic Republic of Congo.Although all major tropical forest sub-regions (coded by color) are represented in a list of the top 20 countries that cleared the largest percentage of their forests between 1990 and 2005, African countries (blue bars) dominate, beginning with Comoros, a small island nation north of Madagascar. The Earth Observatory is part of the
Deforestation can cause many problems including loss of species, soil erosion, and effects on the water cycle.
Wood-based industries like paper, match-sticks, furniture need a substantial amount of wood supply.
Underlying factors are rarely isolated; instead, multiple global and local factors exert synergistic influences on tropical deforestation in different geographic locations.Several international groups produce routine estimates of tropical deforestation, most notably the Food and Agriculture Organization (FAO) of the United Nations, which has been producing a global forest resources assessment every five to ten years since the late 1940s.
)Access to technology may either enhance or diminish deforestation. The availability of technologies that allow “industrial-scale” agriculture can spur rapid forest clearing, while inefficient technology in the logging industry increases collateral damage in surrounding forests, making subsequent deforestation more likely. The FAO report is based on statistics provided by countries themselves, and because the ability of countries to accurately assess their forest resources varies depending on their financial, technological, and institutional resources, the estimates for some countries are likely more accurate then others. Climate change is a severe outcome of the excessive cutting down of trees. What is deforestation?
Some features of this site are not compatible with your browser. Landlocked Burundi in central Africa was second, clearing 47 percent of its forests. People have been deforesting the Earth for thousands of years, primarily to clear land for crops or livestock.
In the Amazon, industrial-scale cattle ranching and soybean production for world markets are increasingly important causes of deforestation, and in Indonesia, the conversion of tropical forest to commercial palm tree plantations to produce bio-fuels for export is a major cause of deforestation on Borneo and Sumatra.In densely populated central Africa, small subsistence plots cover the once-forested hillsides. (Graphic by Robert Simmon, based on data provided by individual countries to the U.N. Foreign Agricultural Organization for the The FAO report does not compile statistics for tropical forest regions as a whole, but the country-by-country and regional-scale statistics provide a grim picture. The roads and the logged areas become a magnet for settlers—farmers and ranchers who Although subsistence activities have dominated agriculture-driven deforestation in the tropics to date, large-scale commercial activities are playing an increasingly significant role. Causes of Deforestation Slash-and-burn agriculture is one of the most destructive forms of agriculture that results in large-scale deforestation. Environmental Effects of Deforestation From Below Soil Erosion and Flooding. The main cause of deforestation is agriculture (poorly planned infrastructure is emerging as a big threat too) and the main cause of forest degradation is illegal logging. This then causes dryer soil and the inability to grow crops. © 1996-2015 National Geographic Society, © 2015- This Tribe Thinks So. Deforestation causes a disturbance in the water cycle and makes the environment drier. The road development itself causes a limited amount of deforestation. Forests cover about 30 percent of the planet, but these habitats are being cleared on a massive scale.
Deforestation is ongoing and is shaping climate and geography.. Deforestation is a contributor to global warming, and is often cited as one of the major causes of the enhanced greenhouse effect.Tropical deforestation is responsible for approximately 20% of world greenhouse gas emissions.
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