Outline the most serious threats posed to the physical environment and vulnerable populations by soil degradation Soil degradation is the decrease in the quality and quantity of soil caused by agriculture and industrial purposes. Types of soil degradation are water and wind erosion‚ physical degradation and chemical degradation. Some of these are human causes and some are physical causes. Overgrazing‚ deforestation‚ overpopulation‚ fertilizer and pesticide use and conflict are some examples of
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Deforestation Carolyn Hurford 2nd Hour 4/1/13 “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.” said by National Geographic. People only think of themselves when demolishing a forest‚ but they don ’t really think of themselves and certainly not all the animals that need to survive in forests. If only 30%
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date : 22 March 2013 Title : describe the term sustainable development and discuss any three of the following problems facing sustainable development:erosion‚deforestation‚pollution and access to resources Table of contents 1. Introduction 2. Define and describe ecology 3. Describe Sustainable Development 4. Discuss Erosion‚ Deforestation and pollution 5. Conclusion Introduction In this assignment different aspects with relation to sustainable development will be defined and discussed. Ecology
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[edit] Minerals and oil Materials removed from the Earth are needed to provide humans with food‚ clothing‚ and housing and to continually upgrade the standard of living. Some of the materials needed are renewable resources‚ such as agricultural and forestry products‚ while others are nonrenewable‚ such as minerals. The USGS reported in Materials Flow and Sustainability (1998) that the number of renewable resources is decreasing‚ meanwhile there is an increasing demand for nonrenewable resources
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feed our ever growing population as well as local farmers providing food for their family. At the moment‚ subsistence farming is responsible for 48% of deforestation‚ farming used for our personal use makes up 32% of deforestation‚ logging makes up 14% of deforestation and wood used for fuel makes up 5% of deforestation. The rest of deforestation is taken up by illegal logging and fuel use. Subsistence farming consists of local farmers cultivating the land for their own personal use. This way of
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October 2014 Detriment of Deforestation Image a planet without trees. This is a scary planet where the temperature is very hot and the air is very difficult to breathe. This planet will have nothing to protect people from the sun‚ nothing to slowdown the forces of the wind‚ and nothing to anchor topsoil from eroding in the rain. The conditions at this imaginary planet can become our reality on earth if we do not stop deforestation. There are many negative effects of deforestation. However‚ for the scope
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Early in human history‚ people used energy for heating‚ lighting‚ and cooking. As humans began to farm larger areas of land‚ their energy demands changed. Domesticated animals were used for energy sources to pull plows. When the Industrial Revolution occurred‚ people’s energy demands further changed to meet the needs of industry. Work that was done by people and animals were then transferred over to machines. These machines required more natural resources such as iron and coal to produce large amounts
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shows the how diverse rainforests are. Because tropical rainforests cover large areas‚ cutting them down can lead to global warming. This is because when forests are cut down it causes higher concentrations of greenhouse gases. Specifically deforestation causes high level of carbon dioxide‚ it is released when forests are burned or when they
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rainfall * Gully erosion – occurs where there’s intense rainfall and little vegetation cover. Force of water cuts gullies in slopes :O! * Wind erosion – occurs in dry parts of world * What makes soil erosion worse? * Deforestation and removing vegetation. As a result of this soil gets exposed to wind/rain * Overgrazing by animals. Result is same as above * Over cultivating the soil! Especially monoculture which weakens the soil and structure and removed
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biodiversity. Methods of clear-cutting and burning for industrial‚ agricultural‚ and use for livestock‚ however‚ have left some areas of the Amazon in a state of barren wasteland. It is important to recognize the detrimental effects that come with deforestation; extinction of specialized species‚ loss of biodiversity‚ soil erosion‚ loss of habitat‚ and climate change are all serious matters that can no longer be thrown under the rug. Although the timber industry relies on trees‚ they should not be seen
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