Презентация по экологии на тему "Экология Якутии"

• 1 слайд

  Environmental problems of Republic Sakha (Yakutia)
  Выполнила: Слепцова Сардана Трофимовна, учитель биологии МОБУ СОШ № 9 г.Якутска
  

• 2 слайд

  Republic of Sakha (Yakutia)
  Republic of Sakha (Yakutia) is one of the rare places on Earth where the purity of nature and a correspondingly amazing variety of flora and fauna are left untouched.
  

• 3 слайд

  However, Republic of Sakha (Yakutia) has serious environmental problems and today the key problem is preservation of these enormous natural riches.
  
  Yakutia is well endowed with raw materials. The soil contains large reserves of oil, gas, coal, diamonds, gold, silver, tin, tungsten and many others.
  Republic of Sakha (Yakutia) produces 99% of all Russian diamonds and over 25% of the diamonds mined in the world
  

• 4 слайд

  Yakutia’s environmental issues
  Yakutia’s environmental issues
  Global warming
  deforestation
  Urban development
  Toxic wastes
  Mining
  Air, water pollution
  
  

• 5 слайд

  Pollution of Lena River
  Siberia's Lena River is one of the longest rivers in the world. It rises west of Lake Baikal in southern Russia and eventually flows north for 4,400km before emptying into the Laptev Sea.
  Ecological problems:
  Overfishing
  Mining
  Forestry
  Grazing
  Expanding agricultural activities
  Water diversion for irrigation
  Pollution from fertilizers and pesticides
  

• 6 слайд

  Deforestation
  Almost half of Yakutia’s land is covered by forests.
  Timber or wood is another important resource found in Republic of Sakha (Yakutia).
  Often, timber is cut down to make room for a mineral mine.
  Deforestation reduces water quality, causes erosion, & kills animals’ habitats.
  

• 7 слайд

  Forest fires
  Forest fires are dangerous guests in the central Yakutia, which annually brings a lot of trouble.
  Fire burns up valuable forests, burn the soil, the plants are destroyed, killed a lot of wild animals, birds and insects.
  Toxic products of combustion are washed away by rains into rivers and lakes and pollute the environment.
  

• 8 слайд

  The use of mineral resources and protection of natural resources
  There are valuable resources beneath the soil. It is very important to economy of Republic of Sakha (Yakutia).
  Minerals:
  Gold
  Silver
  Copper
  Zinc
  iron ore, uranium, nickel and others
  

• 9 слайд

  Threats of mining processes:
  Blasting & digging with heavy machinery are reasons that the land around mines is damaged and the environment is often ruined
  Slag or leftover rock from the smelting process, is often dumped in any convenient place
  Mining processes release harmful chemicals into the air, which causes acid rain.
  
  

• 10 слайд

  Causes of air pollution
  Burning of Fossil Fuels
  Agricultural activitie
  Exhaust from factories and industries
  Mining operations
  Indoor air pollution
  Effects of air pollution
  Respiratory and heart problems
  Global warming
  Acid Rain
  Effect on Wildlife
  Depletion of Ozone layer
  Air pollution. Causes and effects
  

• 11 слайд

  Main causes of air pollution in Republic of Sakha (Yakutia)
  Burning of fossil fuels:
  Fossil fuel is geologic deposits of organic materials, formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure in the earth's crust over hundreds of millions of years.
  The burning of fossil fuels by humans is the largest source of emissions of carbon dioxide, which is one of the greenhouse gases that allows radiative forcing and contributes to global warming.
  
  
  
  

• 12 слайд

  Main causes of air pollution in Republic of Sakha (Yakutia)
  Mining operations:
  Mining is a process where in minerals below the earth are extracted using large equipment.
  During the process dust and chemicals are released in the air causing massive air pollution.
  
  

• 13 слайд

  Ways of solutions for Air Pollution
  Use public mode of transportation
  Conserve energy
  Understand the concept of Reduce, Reuse and Recycle
  Emphasis on clean energy resources
  Use energy efficient devices
  
  

• 14 слайд

  The most polluted regions in Republic of Sakha (Yakutia)
  Central Yakutia has high population density
  Yakutsk has a lot of enterprises located in the windless places(60 smog days in a year), transport produces 80% of emissions.
  
  

• 15 слайд

  The most polluted regions in Republic of Sakha (Yakutia)
  Western Yakutia - (Mirny, Ayhan, Udachnyi, Lensk)
  There are the diamond industry, oil and gas companies.
  Also river Viluy is polluted by phenols, hydrogen sulfide. There has been a dramatic reduction in fish stocks, trout, whitefish, sturgeon have disappeared.
  Ecosystem got radiation (accidental explosions "Kraton-3" and "Crystal“) as a result of underground nuclear explosions.
  
  

• 16 слайд

  The most polluted regions in Republic of Sakha (Yakutia)
  In South Yakutia there are large mining and enrichment companies.
  Coal mining in Neryungri, GRES are the major contributors to the pollution emissions.
  Priority pollutants - nitrogen oxide and dioxide, benzopyrene, sulfur dioxide.
  Unique lake Big Toko is under threat from pollution and destruction in connection with the development of Elga coals.
  

• 17 слайд

  Ways of solving environmental problems
  • introduce non-waste technology;
  • conservation and protection of nature, all of its components, forests;
  • reforestation, planting;
  • waste management;
  • limit on hunting, fishing;
  • monitoring;
  • Creation of environmental safety information;
  • Сreation of a system of environmental education;
  • Сhanges in people's consciousness.
  

• 18 слайд

  Everyone has the right to ecological security, but also the duty of every person, citizen is to preserve and protect nature.
  

• 19 слайд

  Thanks for attention!
  

Краткое описание документа:

Данная презентация красочно оформлена и предназначена для учащихся, студентов, учителей интересующихся экологией Якутии. В презентации кратко представлены основные экологические проблемы Якутии: глобальное потепление, негативное влияние алмазодобывающих компаний на природу, лесные пожары, загрязнение реки Лена.