Deforestation is a contributor to global climate change, and is often cited as one of the major causes of the enhanced greenhouse effect 7. Deforestation means large scale cutting of forests. Essay on the meaning of deforestation essay on the history of deforestation in india essay on the causes for deforestation essay on the effects of deforestation essay. Short term environmental effects no trees anchoring the fertile soil. May 14, 2012 deforestation and pollution are two inter related concepts. Some consequences are animal endangerment and extinction, soil erosion and disruptions in the earths carbon and climate cycles. Feb 26, 2015 ppt on deforestation by mandar gadkari. It is important to note the use of the terms economically developing nations and economically developed nations to emphasise that this slide is referring to how economic factors, not cultural matters, can distinguish the relative development of nations. Social and environmental impacts of forest management. This can include clearing the land for agriculture or grazing, or using the timber for fuel, construction. Deforestation is one of the major causes to the environmental degradation which is affected by the agents like small farmers, ranches, loggers and plantation companies.
Amazon development and deforestation deforestation, is the removal of a forest or stand of trees where the land is thereafter converted to a nonforest use. Some of the other factors that lead to deforestation are also part natural and part anthropogenic like desertification of land. Approximately 640 million trees represent the paper thats thrown away each year, according to the environment paper network. Pdf deforestation and its impacts on climate change an. Deforestation has many consequences for natural ecosystems and it. Impacts of deforestation atmospheric impact deforestation is ongoing and is shaping climate and geography of ethiopia. The environmental impact of agriculture varies based. Individuals for ecological deforestation to end, paper consumption must be drastically reduced.
It is where trees and plants and replanted or added to a. Ban on cutting of trees and new trees and planting more. Deforestation alexandra lovichova, nicholas eio, kenneth ho. Because fsc impacts forests through both reduced impact logging and the creation and support of protected areas important to the provision of clean water or biodiversity, our ecological indicators e. Deforestation is the process of cutting down millions of trees and thus reducing the amount of carbon di oxide that these frees absorb without with the air retains the carbon di oxide and that results into a lot of harmful effects. Devastating effects of deforestation earth eclipse. Another cause behind deforestation is the cutting of trees for timber and fuel. Deforestation means the cutting down of trees without realizing its manifold evils and destructive effects.
While the secondary data source involved the search into published and unpublished materials relevant to the subject matter. Case study on deforestation in brazil case study template. Deforestation is an important factor in global climate change. You can see in these countries the forest is getting lost heavily. Such declines may be the result of climate change, deforestation, overgrazing, poverty, political instability, unsustainable irrigation practices, or combinations of these factors. Harmful effects of deforestation environmental news network. As the concentration of carbon dioxide increases, a layer forms in the atmosphere that traps sun radiation. Deforestation increases the amount of carbon dioxide in the. Deforestation is the clearing of forested areas mainly for urban or agricultural. Impact of deforestation on enirionment authorstream presentation.
Forests support considerable biodiversity, providing valuable habitat for wildlife. Deforestation is the conversion of forested areas to nonforest land for use such as arable land, pasture, urban use, logged area, or wasteland. Indeed some 31 countries do not even make the list because they have already removed most of their forests and even if that remain are seriously fragmented and degraded. Deforestation results in a decline in biodiversity and is known to have caused the extinction of many species. Human impact on the environment basic knowledge 101. To describe the global impacts of deforestation to explain the local impacts of deforestation. Australia has lost almost 40 percent of its forests and some of the remaining forests are fragmented.
Carbon dioxide is the most common greenhouse gas which means, we need less of it. Successful attempts in east asian countires such as china have completed reforestation. Deforestation is one of the human activities contributing to the enhanced greenhouse effect. Examples of deforestation include conversion of forestland to farms, ranches, or urban use. A free powerpoint ppt presentation displayed as a flash slide show on id. Ppt effects of deforestation on the environment powerpoint. The average american would need to plant 734 mangrove trees to offset one. People who live in the rainforest depend on the natural environment for food, shelter, materials for cooking, clothing, etc. Local and global effects of deforestation in the amazon. How does deforestation impact people and the environment.
The main problem with deforestation is its impact on the carbon cycle. Impact of deforestation oneconomy damage to forests and other aspects of nature could halve living standards for the worlds poor and reduce global gdp by about 7% by 2050, a report concluded at the convention on biological diversity cbd meeting in bonn. Deforestation impact on australias ecosystems education. Most of australias forests are in the coastal regions with much of the. There should be an implementation of regulations of laws at organizational and governmental levels due to the extent of deforestation. Deforestation and its effects deforestation, clearance, or clearing is the removal of a forest or stand of trees where the land is thereafter converted to a nonforest use. There is a broad consensus that expansion of cropped areas and pastures are a major source of. You will use pages 245247 to take notes on the use of the rain forests of latin america. A temporary or permanent decline in the productive capacity of the land. According to arbor environmental alliance, 100 mangrove trees can absorb 2.
For years remorseless destruction of forests has been going on and we have not been. It occurs due to land abuse making it unfit for growth of trees. Deforestation can cause runoff of sediment from the land into rivers, lakes and the ocean. Trees play a vital role in protecting our environment in several ways so we should protect the forest.
This download includes presentation including fully differentiated tasks, starters, hwk activity and stretchchallenge. The impact of deforestation on the environment and ecosystems includes loss of biodiversity, climate change and decline in soil fertility. However a 2007 study reached a different conclusion that forests do impact the occurrence and severity of destructive floods. Deforestation is the permanent removal of trees to make room for something besides forest. How coalitionbuilding fights global deforestation september 1, 2014 climate and land use alliance, climate advisers climate and land use alliance s disrupting the global commodity business explores how environmental organizations, indigenous peoples groups, forest communities, businesses, and governments can help to alleviate the cost. Deforestation causes of carbon dioxide in the atmosphere.
Local and global effects of deforestation in the amazon rain. This is an aqa gcse 91 geography lesson ppt on the local and global impacts of deforestation of trf. Reforestation is basically the obvious opposite to deforestation. A project on deforestation projectee ivb shubham mashidkar shubham sangole mandar gadkari kirti chandrashekar rao sumant mahulkar under the guidance of prof. In simple words, deforestation refers to the deliberate process of destroying the forests, so that the clear land may be put to other use.
Impact of deforestation on enirionment authorstream. A fully functioning forest has a great capacity to regenerate. Eighty percent of earths land animals and plants live in forests, and many cannot survive the deforestation that. Among the impacts of tropical deforestation are the altered local or regional hydrology, altered climate and serious environmental problems such as flood. Directorategeneral for environment study on the evolution of some deforestation drivers and their potential impacts on the costs of an avoiding deforestation scheme in the context of the framework contract no.
Why is deforestation a serious global environmental problem. Impact of mining on environment authorstream presentation. Surface mining, including strip mining, openpit mining and mountain top removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit the overburden are removed. The changes in area of forest by region and subregion are shown in table 1. Human activity is rapidly transforming most of earths natural systems. Nov 16, 2017 an active lesson aimed at ks3 or lower ability ks4 on the impact of human activity on the environment.
The forest lands are converted in to farms, ranches and urban areas through deforestation. It is well known that deforestation is a big problem in the world today, with hundreds and even thousands of vulnerable forest being cut down both for tinder and to make way for arable farmland for cows and other livestock. The removal or destruction of areas of forest cover has resulted in a degraded environment with reduced biodiversity. A number of the impacts for this project are actually ositive.
Aug 03, 2014 if all trees are cut down what will happen to world importance of trees simply elearn duration. Studies show impact of forest management and deforestation on climate. But exhaustive hunting of tropical rainforest wildlife can reduce those species necessary to forest continuance and regeneration. Deforestation generally increases rates of soil erosion, by increasing the amount of runoff and reducing the protection of the soil from tree litter. Impact of charcoal production on environment and the socio. Introduction of deforestation destruction of our green. In many parts of the world the forest is taken for granted as a replenish able resource, which it is. Some 250 million people living in forest and savannah areas depend on them for subsistence and income. One of the most dangerous and unsettling effects of deforestation is the loss of animal and plant species due to their loss of habitat. Deforestation is the ecological problem which is characterized with the cut down of vast territories of forests causing serious consequences to the natural environment. What are causes and effects of environmental degradation. Investigating the environmental effects of agriculture. I have also included two different worksheet for this lesson. How this transformation is impacting human health, whose health is at greatest risk, and the magnitude of the associated disease burden are relatively new subjects within the field of environmental health.
Conclusion thus, deforestation is an important issue to be discussed. Deforestation effects how does deforestation affect the environment. Deforestation affects the people and animals where trees are cut, as well as the wider world. Siltation leads to the destruction of coral reefs which in turn can lead to.
Impact of deforestation species loss, extinction and disease. Deforestation facts and information national geographic. Atmospheric for global warming deforestation is the major contributor. Deforestation causes, effects and solutions conserve energy. The act of deforestation has impacted on the world in terms of depreciating the natural environment and wildlife. Trees take in carbon dioxide and produce an non harmful gas. The forest motion graphic is an effort to improve environmental awareness about deforestation in indonesia caused by paper industry. Studies show impact of forest management and deforestation on. Long term environmental effects reduced biodiversity climate change 1. Impact of deforestation and pollution articles web. The lesson includes an estimation task regarding how much rainforest will be lost by the end of the lesson, the impacts of deforestation and students explaining which impact they think is the greatest through their own opinions.
The most dramatic impact is a loss of habitat for millions of species. Mexcio city air pollution, amazon deforestation venezuela oil pollution ppt this engaging powerpoint walks students through the understanding of the causes, effects and solutions to mexico citys air pollution, amazon rain forest deforestation and venezuelas oil pollution a purposeful manner. Opting for paperless bills, checks and payments significantly contributes towards mending the harmful effects of deforestation cattle grazing is one of the primary causes of deforestation. There are various ways of looking at land degradation and its impact on the environment around it. Recently i spent some effort to know about deforestation. Human impact on the environment teaching resources. Study on the evolution of some deforestation drivers and. Impact of deforestation onsoil undisturbed forests have a very low rate of soil loss, approximately 2 metric tons per square kilometer 6 short tons per square mile. Trees are cut down in order to manufacture paper products as well as for livestock farming and so on. Gases such as methane and carbon dioxide trap heat in earths atmosphere, leading change in climate. Many industries in petrochemicals release their waste into rivers which results in soil. Deforestation is a problem that is caused largely by greed and want for property, money and possibly status. Deforestation facts, causes, effects, and what you can do.
While the secondary data source involved the search into published and unpublished materials relevant to. Deforestation can have a negative impact on the environment. There are several effects of deforestation on earths climate and nature. Deforestation is the international problem and every country has troubles in this sphere, but brazil, the owner of the biggest and most productive rainforests in the world. We discuss what is known about the human health implications of changes in the structure and function. It is estimated that around 7% of the agricultural area of western australia is suffering from this problem following deforestation. Environmental effects of deforestation from above loss of habitat. Deforestation on a human scale results in decline in biodiversity, and on a natural global scale is known to cause the extinction of many species. When clearing land, you kill plant species that grew in a certain place for many years. Long term environmental effects 80 % species can be found in tropical rainforests often unable to survive in the small fragments of forested lend left behind accessible to hunters and poachers leading to extinction forests help to mitigate carbon dioxide and other greenhouse gas emissions when cut, burned or otherwise removed they become carbon source tropical forests hold more than 210 gig tons of carbon deforestation represents 15% of greenhouse gas. The waste that comes out from mining pollutes the environment and affects the nearby species. Deforestation and its impacts on climate change an overview of pakistan.
Localized deforestation issues plants are also essential for stabilizing the soil. Desertification, the process by which natural or human causes reduce the biological productivity of drylands. Tropical rainforests are the most diverse ecosystems on earth and about 80% of the worlds known biodiversity eminates from them. Deforestation when forests are cut, the salinity of the soil can greatly increase. Deforestation causes, effects and impacts aims and objectives 1. Basically, many of the function s of tropical forests are not marketed and as such are ignored in decision making. Deforestation is considered to be a large part of global warming. The extra sediment in the waterways can smother animals and block their access to light.
Deforestation has become a huge concern in todays life as there has been a rise in the decline of forests. It has also impacted on humans on the account of changes in environmental support processes such as weather conditions. Causes, effects and control strategies 5 deforestation are maintained. Long term environmental effects 80 % species can be found in tropical rainforests often unable to survive in the small fragments of forested lend left behind accessible to hunters and poachers leading to extinction forests help to mitigate carbon dioxide and other greenhouse gas emissions when cut, burned or otherwise removed they become carbon source tropical forests hold more than 210 gig tons of carbon deforestation. The problem is that the trees cannot be re grown and replanted at the rate at which they are being cut down. Generally, the removal or destruction of significant areas of forest cover has resulted in a degraded environment with reduced biodiversity. Investigating the environmental effects of agriculture practices on natural resources scientific contributions of the u. As a result, saline water draining from such areas can affect downstream or downslope water quality. Geological survey to enhance the management of agricultural landscapes land cover map of the conterminous united states from early 1990s data vogelmann and others, 2001. Mar 01, 2017 a lesson designed for ks3 but can also be used with any year group looking at the impacts deforestation causes. The act of deforestation cutting down of trees has impacted on the world in terms of depreciating the natural environment and wildlife. Land degradation is a broad term that can be applied differently across a wide range of scenarios. Impacts of deforestation alteration of local and global climates through. Trees absorb the carbon dioxide and release oxygen and water into the atmosphere and this contributes to global warming.