21-12-2012, 05:55 PM
SAVE TREES
SAVE TREES.ppt (Size: 1.09 MB / Downloads: 51)
INTRODUCTION
Save Trees & Importance of Trees
Students you know about the trees. Trees are very useful for the all leaving things i.e. animal,man etc.
Most trees and shrubs in cities or communities are planted to provide beauty or shade
Importance of Trees
One of the most important issues facing human kind is global
environment. Every now and then, we keep coming across the news of global warming, depleting ozone layer, harmful effects of carbon and such related topics. Nations across the world are holding several environmental meets to tackle this grave issue. Right from shutting down polluting factories to go green campaign steps are being taken to handle the situation. But before anything we can take one basic step that can do wonders to mission save earth. Planting trees is an amazing idea from so many aspects. Let’s talk about few interesting aspects of plating trees.
Benefits of Trees
Social Benefits
Most trees and shrubs in cities or communities are planted to provide beauty or shade. These are two excellent reasons for their use. Woody plants also serve many other purposes, and it often is helpful to consider these other functions when selecting a tree or shrub for the landscape. The benefits of trees can be grouped into social, communal, environmental, and economic
We like trees around us because they make life more pleasant. Most of us respond to the presence of trees beyond simply observing their beauty. We feel serene, peaceful, restful, and tranquil in a grove of trees. We are “at home” there. Hospital patients have been shown to recover from surgery more quickly when their hospital room offered a view of trees. The strong ties between people and trees are most evident in the resistance of community residents to removing trees to widen streets. Or we note the heroic efforts of individuals and organizations to save particularly large or historic trees in a community.
Economic Benefits
Individual trees and shrubs have value, but the variability of species, size, condition, and function makes determining their economic value difficult. The economic benefits of trees can be both direct and indirect. Direct economic benefits are usually associated with energy costs. Air-conditioning costs are lower in a tree-shaded home. Heating costs are reduced when a home has a windbreak. Trees increase in value from the time they are planted until they mature. Trees are a wise investment of funds because landscaped homes are more valuable than nonlandscaped homes. The savings in energy costs and the increase in property value directly benefit each home owner.
The indirect economic benefits of trees are even greater. These benefits are available to the community or region. Lowered electricity bills are paid by customers when power companies are able to use less water in their cooling towers, build fewer new facilities to meet peak demands, use reduced amounts of fossil fuel in their furnaces, and use fewer measures to control air pollution. Communities also can save money if fewer facilities must be built to control storm water in the region. To the individual, these savings are small, but to the community, reductions in these expenses are often in the thousands of dollars.