Illegal deforestation presentation. Presentation "Deforestation" around the world - project, report
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The presentation on the topic "Deforestation" can be downloaded absolutely free of charge on our website. Project subject: The world. Colorful slides and illustrations will help you keep your classmates or audience interested. To view the content, use the player, or if you want to download the report, click on the appropriate text under the player. The presentation contains 7 slide(s).
Presentation slides
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Deforestation. Loss of biodiversity
Fulfilled
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Deforestation. The forests belong important role in the conservation of soil and water, the maintenance of flora and fauna. In addition, forests are a source of industrial timber, fuel and other products. Today, forests around the world are under threat of degradation and destruction as a result of increasing human pressures. At the expense of forests, agricultural fields and pastures are expanding, predatory felling continues, forests suffer from fires and atmospheric pollution. Of particular concern is the destruction of tropical forests, the average annual percentage of which reaches 1% of their area. Estimates by the Food and Agriculture Organization of the United Nations (FAO) in 62 countries representing 78% of the world's tropical forest area) show that forests were deforested at a rate of 16.8 million hectares/year during the period 1980-1990.
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The remaining 800 million hectares of tropical forests are being cut down and destroyed at such a rate that by 2030, according to various estimates, only 200 to 370 million hectares will become shallow. The consequences of deforestation are the extinction of species, soil degradation, a decrease in runoff on watersheds and an increase in the accumulation of precipitation in water bodies, a decrease in the buffer role of forest swamps, a decrease in carbon stocks in terrestrial biomass, an increase in CO2 content in the atmosphere, and a decrease in precipitation. Forests are dying not only in the tropics. A massive disease and death of the forests of Europe began and North America due to air, water and soil pollution. As a result of intensive felling, the coniferous forests of Central Russia have been practically destroyed, the most valuable and accessible forest massifs in Siberia are steadily reduced to Far East. The destruction of northern forests, as well as tropical forests, causes a change in climatic conditions, water regime, and soil conditions.
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Loss of biodiversity. Tropical forest destruction
Loss of biodiversity. Scientists believe that from 5 to 30 million species live on Earth, although about 1.7 million have been described. The totality of all species makes up the biodiversity of the Earth. From half to 80% (according to various estimates) of the planet's species live in tropical forests, although the latter occupy only 7% of the Earth's territory. So, in the rainforest of Panama on an area of 50 hectares, scientists found about 300 species of trees and shrubs, in Malaysia on the same area - 835 species of trees. Towards North Pole biodiversity is declining. For example, in the state of Washington, about 40 species of trees grow on 50 hectares, and in Western Siberia- 5-6. The destruction of tropical forests has already led to the death of about 6,000 species. Tropical forests are mostly owned by poor state kingdoms with rapid population growth. These countries are forced to export timber, burn forests to build roads and cities, and grow crops. Unfortunately, the soils of tropical owls are very poor, they are depleted in 2-3 years and deforestation is required again.
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Biotechnology
Species are dying not only in the tropics. Wherever ecosystems are destroyed or their area is greatly reduced, species disappear. And this is an irreparable loss for the biosphere and humanity. Humans have learned to use only 0.1% of the species. We only eat about 50 plant species, while 75,000 plants have edible parts and are far richer in nutrients than what we eat today. plant food. Plants are only food, but also a building material, a source of energy, the main part of medicines. Biotechnology also depends on biodiversity: breeding - from the genes of wild plants, the production of antibiotics - from microscopic fungi, the production of enzymes - from yeast and bacteria. Biotechnologists hope to create natural fertilizers and pesticides that can be cultivated plants that are resistant to drought, frost and various diseases.
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Examples of socio-environmental benefits of biological diversity
Here are some examples of the social and environmental benefits of biodiversity: The cost of medicines produced globally from wild plants and natural products, is about 40 billion US dollars per year. In 1960, only one child in five with leukemia had a chance of surviving. Now four out of five have that chance. This was made possible by treatment with a drug containing active substances found in the tropical forest plant Catharantus, whose birthplace is Madagascar. In Asia, by the mid-1970s, genetic improvements had increased wheat production by $2 billion and rice by $1.5 billion a year. These results were achieved through the development and use of low-growing varieties of grain crops. A single gene in Ethiopian barley now protects against the yellow dwarf virus in the entire crop of Californian barley worth $160 million a year. By losing the biodiversity of the Earth, humanity is losing its future!!!
"Zone of mixed forests" - Now forests cover 30% of the area of the zone. Red fox. Vegetable world. You stand, birch, in the middle of the valley. Hedgehog. Animal world. Forest animals. Pheasant. There is a birch tree under you, silk grass ... Average t July is from + 16 ° to + 24 ° С, and in January from -8 ° to -16 ° С. The flora of forests is diverse: “Soft, gentle forest.
"Deforestation" - Catastrophe of the Tropics. Forestry and woodworking industry. Wider use of experience different countries for the processing of wood biomass. Forest planting leaders today are South Korea and Kenya. The forest plays a very important role for our planet. Forest vegetation forms forest resources. Regulation of the gas composition of the atmosphere.
"Forest Zone Russia" - A beautiful decorative tree. Almost half of the territory of Russia is occupied by forests. Larch is the pioneer of the forest. Geography lesson. It looks like a spruce (in a fir - the cones look up). The woods. Linden is cold-resistant, not afraid of shade. Light coniferous forests. They dominate in the southern part of the forest zone. Compiled by: Kurochkina I.V., teacher of geography of the Oktyabrskaya secondary school of the Volosovsky district.
"Forest zone" - On the map of natural zones, the forest zone is shaded with ... color. Five parts. Natural forest zone consists of… Natural forest zone Beginning of the test. Three parts. Natural history. The forest zone consists of three parts. The owner of the forest is called ... Two parts. Well done! Farther. You wrong! Correctly. The bear is called the owner of the forest.
"State of forests" - Standard 500 linear meters per 1 ha. The number of relascopic sites on the allotment, depending on the area of the allotment and the density of stands. Study of recreational loads in forests intended for recreation of the population. Moscow State University the woods. Combination and analysis of maps is carried out by means of GeoInformation Technologies (GIS-technologies).
"Geography of forests of Russia" - Forests of Russia. Repetition. In the west of the country, the length of forests is 1000 km, in the Far East - 3000 km. Taiga. Mixed and deciduous forests. Why does the disturbed natural complex of the tundra take a long time to recover? general characteristics forests of Russia. Plan for studying the topic. The most extensive, basic natural area Russia - forests.
Fair to forest? Is it his fault that environmental problems arise? the woods? Problems the woods felling the woods. Illegal hunting in... - mandarin duck eagle owl Amur tiger ginseng bison Problems the woods Landfills in forest Forest fire 72% of forest fires are caused by...
The role of man in changing biogeocenosis ...
in biogeocenoses. The role of the person. Fires. Hunting and poaching. felling forests. The positive role of man in change Conclusion: The value of biogeocenosis ... for example, beavers, ungulates, waterfowl, etc. felling forests Destruction process the woods is a topical issue in many parts the globe, ...
Very often turns into a tragedy for the woods. Attention! Forest Harm: Pollution the woods human food waste felling the woods Illegal hunting Fires Conclusions: ... 1. 2. The woods in Russia grow in favorable conditions for...
Atmospheric pollution from production waste Water pollution from a tanker accident felling forests leads to soil erosion Pollution of everything with household waste...causes of acid rain and the greenhouse effect. Let's save the woods! Leaving forest Don't forget to take all your rubbish with you! ...
Chimpanzees, okapis, hippos, tsetse flies, leopards, reptiles,. felling forests, the disappearance of valuable tree species and rare animal species. The plant world... forms fruits, and then dies off completely. Animal world of the equatorial forests. Common hippopotamus and pygmy hippopotamus. Dwarf ...
Which emit tree leaves into the air. / PROBLEMS THE WOODS FELLING ILLEGAL HUNTING FIRE POLLUTION RED BOOK DO NOT TEAR RARE ... joy to people! We will be friends with you. Kind forest, mighty forest Full of fairy tales and miracles! Homework: Tutorial: p...
IVAN IVANOVICH SHISHKIN SHIP FOREST OAK GROVE. SOURCE OF MEDICINAL PLANTS SOURCE OF WOOD House for animals... mushrooms, nuts. Source of medicinal plants. Source of wood. ON THE FELLING THE WOODS FOREST FIRE FOREST RED BOOK stag beetle Amur tiger eagle owl duck...
Does the example illustrate the impact of natural factors on society? felling the woods for the construction of houses Pollution of the river with industrial waste Study ... an example illustrates the influence of natural factors on society? felling the woods for the construction of houses Pollution of the river with industrial waste Study ...
Deforestation. Forests play an important role in the conservation of soil and water, maintaining flora and fauna. In addition, forests are a source of industrial timber, fuel and other products. Today, forests around the world are under threat of degradation and destruction as a result of increasing human pressures. At the expense of forests, agricultural fields and pastures are expanding, predatory felling continues, forests suffer from fires and atmospheric pollution. Of particular concern is the destruction of tropical forests, the average annual percentage of which reaches 1% of their area. Estimates by the Food and Agriculture Organization of the United Nations (FAO) in 62 countries representing 78% of the world's tropical forest area) indicate that forests were depleted at a rate of 16.8 million ha/year during the period.
Deforestation The remaining 800 million hectares of tropical forests are being cut down and destroyed at such a rate that by 2030, according to various estimates, only 200 to 370 million hectares will become shallow. The consequences of deforestation are the extinction of species, soil degradation, a decrease in runoff on watersheds and an increase in the accumulation of precipitation in water bodies, a decrease in the buffer role of forest swamps, a decrease in carbon stocks in terrestrial biomass, an increase in CO2 content in the atmosphere, and a decrease in precipitation. Forests are dying not only in the tropics. A massive disease and death of forests in Europe and North America began due to pollution of the atmosphere, water and soil. As a result of intensive logging, the coniferous forests of Central Russia have been practically destroyed, and the most valuable and accessible forest massifs in Siberia in the Far East are steadily reduced. The destruction of northern forests, as well as tropical forests, causes changes in climatic conditions, water regime, and soil conditions.
Loss of biodiversity. Destruction of tropical forests Loss of biodiversity. Scientists believe that from 5 to 30 million species live on Earth, although about 1.7 million have been described. The totality of all species makes up the biodiversity of the Earth. From half to 80% (according to various estimates) of the planet's species live in tropical forests, although the latter occupy only 7% of the Earth's territory. So, in the rainforest of Panama, on an area of 50 hectares, scientists found about 300 species of trees and shrubs, in Malaysia, on the same area, 835 species of trees. Biodiversity decreases towards the North Pole. For example, in the state of Washington, about 40 species of trees grow on 50 hectares, and in Western Siberia, 56. The destruction of tropical forests has already led to the death of about 6,000 species. Tropical forests are mostly owned by poor state kingdoms with rapid population growth. These countries are forced to export timber, burn forests to build roads and cities, and grow crops. Unfortunately, the soils of tropical owls are very poor, in 23 years they are depleted and deforestation is required again.
Biotechnology Species are dying not only in the tropics. Wherever ecosystems are destroyed or their area is greatly reduced, species disappear. And this is an irreparable loss for the biosphere and humanity. Humans have learned to use only 0.1% of the species. We eat only about 50 species of plants, while 75,000 plants have edible parts and are much richer in nutrients than the plant foods currently consumed. Plants are only food, but also a building material, a source of energy, the main part of medicines. Biotechnology also depends on biodiversity: selection from genes from wild plants, production of antibiotics from microscopic fungi, production of enzymes from yeast and bacteria. Biotechnologists hope to create natural fertilizers and pesticides that can be cultivated plants that are resistant to drought, frost and various diseases.
Examples of the socio-ecological benefits of biodiversity Here are some examples of the socio-ecological benefits of biodiversity: The cost of medicines produced in the world from wild plants and natural products is about 40 billion US dollars a year In 1960, only one child in five with leukemia had chance to survive. Now four out of five have that chance. This was made possible by treatment with a drug containing active substances found in the tropical forest plant Catharantus, whose homeland is Madagascar In Asia, by the mid-70s, genetic improvements led to an increase in the production of wheat by 2 billion and rice by 1.5 billion dollars USA per year. These results were achieved by breeding and using low-growing varieties of cereal crops One gene in Ethiopian barley now protects against the yellow dwarf virus in the entire US$ 160 million per year crop of California barley. By losing the biodiversity of the Earth, humanity is losing its future!!!
Description of the presentation on individual slides:
1 slide
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Environmental problems. Deforestation Completed by: Zhdankin Dmitry 11th grade student MBOU Shpikulovskaya secondary school Tambov region
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Before humanity today stands a lot environmental issues. They are partly related to human life. The biggest problem is deforestation. H
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The forest, as you know, gives us pure oxygen, wood, berries and mushrooms. But now quite often there is deforestation in Russia, Africa and Latin America.
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These forests are distinguished high quality wood growing there. felling scaffolding is coming faster than their landing. Today, there are quite a lot of poachers hunting for valuable tree species.
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Consequences of deforestation Massive deforestation entails catastrophic consequences. The lack of vegetation leads to rapid erosion, which causes devastating floods and mudflows. On the Yangtze River, for example, flooding intensified significantly after the deforestation of coastal slopes that held the water of the monsoon rains. A yellowish dust cloud now hangs over Beijing in spring and summer - this seasonal phenomenon is also provoked by too intensive logging in the country. Clouds of dust pollute estuaries and cause severe damage to coral reefs. In addition, deforestation can accelerate the process of global warming, especially if it is accompanied by fires and burning, which farmers often resort to clearing space for crops.
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Consequences of deforestation Deterioration of ecology in the area of deforestation Soil corrosion Animals and birds have nowhere to live and breed Desertification
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Protective Measures To counter forest destruction, the Forest Stewardship Council was established in 1993. This public organization includes 1400 woodworking enterprises, as well as associations for the protection environment and representatives of indigenous peoples living in the forest belt. The council issues certificates that guarantee that the wood put up for sale comes from a forest where the felling rate is not exceeded. However, the defenders of forests place their main hopes not on administrative measures, but on the fact that over time a “formula” of interaction between man and forest will be developed. The first steps in this direction are the creation of natural areas where people can live by building houses, hunting, and preparing firewood. Oddly enough, a forest can be safe only when it becomes inhabited.
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Possible measures to combat deforestation Establish a procedure for the ownership, use and withdrawal of forests; management of the unified state forest fund; establishment of the procedure for assigning forests to groups and categories of protection; establishment of the procedure for the use, reproduction, conservation and protection of forests; establishment of uniform for the country systems of forest management, forest inventory, procedures for maintaining the state forest cadastre and forest monitoring;
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Rational use of forest resources involves the integrated processing of wood with the full use of waste Reducing the volume of deforestation in accordance with their growth Intensifying reforestation work Partial replacement of wood with new construction materials