EcoKids: Threats to our forests. Deforestation Results of deforestation Forests are cleared all around the world for a number of reasons, including: Harvesting of timber to produce wood and paper products Clearing land for farms, cash-crop plantations, and cattle ranching Clearing land for urban development, including homes and roads. Forests are also being destroyed by acid rain resulting from our pollution-causing activities and through the introduction of disease and invasive species. Deforestation is a very real environmental threat. What happens when forests are cleared? Floods and soil erosion Erosion The roots of a tree make gaps in the soil so that when it rains the water can sink in before being absorbed by the soil. Because the soil no longer can absorb the water, when it rains the water remains on the top of the soil and this can result in floods. What we lose: About 24 billion tons of agricultural topsoil (the top layer of soil) wash or blow away each year.
Drought Forests help produce rainfall. Species extinction. National Geographic: Deforestation. Modern-Day Plague Deforestation is clearing Earth's forests on a massive scale, often resulting in damage to the quality of the land. Forests still cover about 30 percent of the world’s land area, but swaths the size of Panama are lost each and every year. The world’s rain forests could completely vanish in a hundred years at the current rate of deforestation. Forests are cut down for many reasons, but most of them are related to money or to people’s need to provide for their families.The biggest driver of deforestation is agriculture. Farmers cut forests to provide more room for planting crops or grazing livestock. Often many small farmers will each clear a few acres to feed their families by cutting down trees and burning them in a process known as “slash and burn” agriculture.
Logging operations, which provide the world’s wood and paper products, also cut countless trees each year. Not all deforestation is intentional. Deforestation has many negative effects on the environment. CBBC Newsround: Amazon deforestation. Some main reasons why areas of rainforests are cut down:Farming e.g. soya fields, cattle ranches Mining Flooding areas of land as part of hydro electric power stations Logging to sell the timber Once the trees go, the soil becomes infertile in one or two years, making it poor for farming. Hunting becomes more difficult for the people who live there as the habitat for wildlife is lost.
Traditional people's cultures are also lost. The effects of deforestation: Trees are removed. Trees do not protect soil so nutrients are washed out by the rain. Soil is now less fertile and the unprotected surface becomes dry and compacted. It is hard for rain to soak into the soil, so flooding may occur. New trees grow more slowly and there are less species. Possible alternatives to deforestation: You may think that the obvious solution to the problems of deforestation is simply to stop people cutting the trees down. However, it's not always as straightforward as that. The global effects of deforestation: Live Science: Deforestation. Deforestation is the permanent destruction of forests in order to make the land available for other uses. An estimated 18 million acres (7.3 million hectares) of forest, which is roughly the size of the country of Panama, are lost each year, according to the United Nations' Food and Agriculture Organization (FAO).
Some other statistics: About half of the world's tropical forests have been cleared (FAO) Forests currently cover about 30 percent of the world’s land mass (National Geographic) Forest loss contributes between 6 percent and 12 percent of annual global carbon dioxide emissions (Nature Geoscience) About 36 football fields worth of trees lost every minute (World Wildlife Fund (WWF)) Deforestation occurs around the world, though tropical rainforests are particularly targeted.
NASA predicts that if current deforestation levels proceed, the world's rainforests may be completely in as little as 100 years. Error loading player: No playable sources found Weather vs. Voices of Youth: Deforestation. Member since February 8, 2014 1 Post Deforestation is when humans remove forest areas and the land is turned to something other than a forest.
Sometimes this is done because humans need the trees or because humans need to use the land as farmland or even to create a city. The video above provided by NASA shows a place in Africa where the forests have been cleared and you can see the dirt coming through. National geographic website says "Forests still cover about 30 percent of the world’s land area, but swaths the size of Panama are lost each and every year". This was found at: This quote means that deforestation is a human impact concern that is continuing. The effects of deforestation are many. Environment africa GEM deforestation GEM Sustainable Development desertification extinction damage to biodiversity. WWF: Deforestation Main Page. Forests cover 31% of the land area on our planet. They produce vital oxygen and provide homes for people and wildlife. Many of the world’s most threatened and endangered animals live in forests, and 1.6 billion people rely on benefits forests offer, including food, fresh water, clothing, traditional medicine and shelter.
But forests around the world are under threat from deforestation, jeopardizing these benefits. Deforestation comes in many forms, including fires, clear-cutting for agriculture, ranching and development, unsustainable logging for timber, and degradation due to climate change. Forests play a critical role in mitigating climate change because they act as a carbon sink—soaking up carbon dioxide that would otherwise be free in the atmosphere and contribute to ongoing changes in climate patterns. Deforestation is a particular concern in tropical rainforests because these forests are home to much of the world’s biodiversity.
WWF: Deforestation. Kids.Mongabay.com: Deforestation. Deforestation refers to the cutting, clearing, and removal of rainforest or related ecosystems into less bio-diverse ecosystems such as pasture, cropland, or plantations (Kricher, 1997). What are the causes of deforestation? I. Logging II. Mining III. Oil and gas extraction IV. V. VI. Deforestation in Borneo. Largest rainforests worldwide listed in descending order (from largest to smallest). Amazon basin of South AmericaCongo river basin of Central AfricaS.E. Facts: Did you know that tropical rainforests, which cover 6-7% of the earth's surface, contain over half of all the plant and animal species in the world! Overview of deforestation around the world: Between 1960 and 1990, most of the deforestation occurred globally, with an increasing trend every decade.
Brazil has the highest annual rate of deforestation today.Atlantic coast of Brazil has lost 90-95% of its rainforest.Central America has 50% of its rainforests.South America has 70% of its rainforests. Destructive logging in Malaysia. 2. ESchoolToday: Forest Preservation. Introduction to forest preservation Environmental activists consider forests as one of the top 5 natural resources on earth.
This is rightly so, and today, we shall look at how wonderful our forests are to us, and why we should immediately stop its' destruction. There is more to forests than just a massive collection of trees. It is a natural, complex ecosystem, made up of a wide variety of trees, that support a massive range of life forms. Quiet apart from trees, forests also include the soils that support the trees, the water bodies that run through them and even the atmosphere (air) around them.
Forests come in many sizes and forms. It is estimated that two-thirds of the world's forest is currently distributed among 10 countries: (REF: IUCN, International Union for Conservation of Nature) Forests are hugely important for life on earth.