Trees are vital for life


Published on

Published in: Technology, Business
  • Be the first to comment

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide

Trees are vital for life

  1. 1. Trees are vital for lifeRameesha saleem roll no. 6Muhammad nasir roll no.7Muhammad yasir roll no.8Hafiz Muhammad iqrar shahid roll no.9
  2. 2. The trees around us are extremely important and have always been necessary forimproving the human condition and their very existence. Its not too hard tobelieve that without trees we humans would not exist on this beautiful planet. Themodern human community has other, more practical reasons to admire and honortrees. Here is a short list of reasons trees are necessary for improving our worldlycondition. Trees are an important part of every community. Our streets, parks,playgrounds and backyards are lined with trees that create a peaceful,aesthetically pleasing environment. Trees increase our quality of life by bringingnatural elements and wildlife habitats into urban settings. We gather under thecool shade they provide during outdoor activities with family and friends. Manyneighborhoods are also the home of very old trees that serve as historic landmarksand a great source of town pride.
  3. 3. 1. Trees Produce Oxygen Lets face it, we could not exist as we do if there were no trees. A matureleafy tree produces as much oxygen in a season as 10 people inhale in a year.What many people dont realize is the forest also acts as a giant filter thatcleans the air we breath.
  4. 4. 2. Trees Clean the Soil The term phytoremediation is a fancy word for the absorption of dangerouschemicals and other pollutants that have entered the soil. Trees can eitherstore harmful pollutants or actually change the pollutant into less harmfulforms. Trees filter sewage and farm chemicals, reduce the effects of animalwastes, clean roadside spills and clean water runoff into streams.
  5. 5. 3. Trees Control Noise Pollution Trees muffle urban noise almost as effectively as stone walls. Trees, planted at strategic points in a neighborhood or aroundyour house, can abate major noises from freeways and airports.
  6. 6. 4. Trees Slow Storm Water Runoff Flash flooding can be dramatically reducedby a forest or by planting trees.One Colorado blue spruce, either planted orgrowing wild, can intercept more than 1000 gallonsof water annually when fully grown.Underground water-holding aquifersare recharged with this slowing down of water runoff.
  7. 7. 5. Trees Are Carbon Sinks To produce its food, a tree absorbs and locks awaycarbon dioxide in the wood, roots and leaves.Carbon dioxide is a global warming suspect.A forest is a carbon storage area or a "sink“that can lock up as much carbon as it produces.This locking-up process "stores" carbon aswood and not as an available "greenhouse" gas.
  8. 8. 6. Trees Clean the Air Trees help cleanse the air by intercepting airborne particles, reducing heat,and absorbing such pollutants as carbon monoxide, sulfur dioxide, andnitrogen dioxide. Trees remove this air pollution by lowering air temperature,through respiration, and by retaining particulates.
  9. 9. 7. Trees Shade and Cool Shade resulting in cooling is what a tree is best known for. Shade from treesreduces the need for air conditioning in summer. In winter, trees break theforce of winter winds, lowering heating costs. Studies have shown that partsof cities without cooling shade from trees can literally be "heat islands" withtemperatures as much as 12 degrees Fahrenheit higher than surroundingareas.
  10. 10. 8. Trees Act as Windbreaks During windy and cold seasons, trees located on the windward side act aswindbreaks. A windbreak can lower home heating bills up to 30% and have asignificant effect on reducing snow drifts. A reduction in wind can also reducethe drying effect on soil and vegetation behind the windbreak and help keepprecious topsoil in place.
  11. 11. 9. Trees Fight Soil Erosion Erosion control has always started with tree and grass planting projects. Treeroots bind the soil and their leaves break the force of wind and rain on soil.Trees fight soil erosion, conserve rainwater and reduce water runoff andsediment deposit after storms.
  12. 12. 10. Trees Increase Property Values Real estate values increase when trees beautify a property or neighborhood.Trees can increase the property value of your home by 15% or more.
  13. 13. Role of trees in food securityForests, trees on farms and agroforestry contribute tofood security and improved nutrition by providing a directsource of food and fuel, by being a source of householdincome and through the ecosystem services they provide.
  14. 14. Any questions