million acres in the 1980s. That is equivalent to about the size of Rhode Island. But 86 percent of original Amazon still stands. Experts estimates that we are losing 137 plant‚ animal and insect species every single day due to rainforest deforestation. That equates to 50‚000 species a year. As the rainforest species dissapear‚ so do many possible cures for life-threatening diseases. Currently‚ 121 prescription drugs sold worldwide come from plant-derived sources. While 25% of Western pharmaceuticals
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Deforestation has been taking places in every part of the world. Many forests have been cleared out without considering the effect to the world. Deforestation was‚ is and is going to be done with the reason to fulfill human’s need. Forest was used to cover around 50% of the total land in the earth‚ but sadly forest only cover around 30% of the total land. Can we still call earth the green planet if deforestation keeps on happening? I strongly believe that we need to stop deforestation before it is
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CAUSES OF DEFORESTATION Deforestation is the product of the interaction of the many environmental‚ social‚ economic‚ cultural‚ and political forces at work in any given region. The mix of these forces varies from decade to decade‚ and from country to country. As a consequence‚ generalizations are dangerous. In most cases‚ deforestation is a process that involves a competition amongst different land users for scarce resources‚ a process exacerbated by counter-productive policies and weak institutions
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Coastal Pollution The coast is particularly subject to pollution. Semiarid Lands and Human Habitation Desertification is the conversion of semiarid land to desertlike conditions. Tropical Rain Forests and Human Habitation Deforestation‚ the removal of trees‚ has long allowed humans to live in areas where forests once covered the land. Tropical rain forests are subject to desertification because soil in the tropics is thin and nutrient-poor. Loss of Biodiversity
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Morgan L. Richard Bio 100 The Rainforests of Atsinanana is located on the eastern side of the island of Madagascar. There are six different national parks that are not connected to one another that make up the “Rainforests of Atsinanana”. These rainforests are said to be possibly the most diverse ecosystems in the world. They consist of 2‚598 species of animals (from 166 families) and 1‚039 plants (from 119 different groups). These national parks also contain more than 1/3 of all mammals
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medicine‚ and shelter as well as breathable air. At the rate that forests are being cut down we are not able to replant them due to lack of funding and space. Many of the lands that were once forests are now homes to factories that encourage more deforestation. Although it may not seem relevant to some people of the United States‚ this country still benefits from rain forests around the world. The United State’s government does have some economic incentives for preserving forests in the U.S. and other
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purpose of government-owned lands? 6. Why is the forest an important ecosystem? 7. What is your definition of forest management? What is its purpose? Describe the concept of sustainable forestry. 8. What effect does the harvesting of trees and deforestation have on forests and the environment? Is there a preferred method for harvesting trees? Explain. 9. What is a rangeland? Describe rangeland degradation and desertification. What effect does degradation and desertification have on the environment
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Natural Vegetation Tropical Rainforests 10º North and South of the Equator High rainfall and temperatures (over 1500 mm yearly; about 27º) Typically located in the Amazon Basin in South America‚ Congo Basin in Africa and parts of Southeast Asia such as Indonesia and Malaysia. ~400 species per hectare 5 distinct layers: Emergent: 30m to 50m; tall thick straight trunks Canopy: 15m to 30m; wide‚ shallow‚ umbrella-shaped crowns form a continuous leaf cover‚ preventing sunlight from penetrating
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Water and wind erosion are now the two primary causes of land degradation; combined‚ they are responsible for 84% of degraded acreage‚ making excessive erosion one of the most significant global environmental problems. Industrial agriculture‚ deforestation‚ roads‚ anthropogenic climate change and urban sprawl are amongst the most significant human activities in regard to their effect on stimulating erosion. However‚ there are many available alternative land use practices that can curtail or limit
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Lee Garrant Everest University Online Instructor: William Gangloff There are three major practices that expose soil to erosion and they can be corrected and create a more sustainable society. They are over cultivation‚ overgrazing‚ and deforestation. We were asked to pick one out of the three and discuss it‚ the one that’s I chose was overgrazing. Overgrazing is one of the major practices of exposing soil to erosion. Overgrazing isn’t a new issue that we are facing. Grazing animals in great
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