benefits of trees (article)
plz give intro, conclusion also in big
Answers
Explanation:
tree se oxygen milta hai
Answer:
BIOMASS FOR COOKING FUEL: In the Panchmahal district (the location of our first planting program), a study found that the villagers would have to spend 40% of their cash income on cooking fuel alone if they did not get twigs and branches from trees.
RURAL JOBS: Grow-Trees.com is creating rural jobs, in remote areas where jobs are rare, in the nursery, planting and post-planting activities, amongst tribals and scheduled caste women (see photos on our website). For every 20,000 trees planted by Grow-Trees.com, between 1,500 and 1,800 workdays of jobs are created in the nursery and planting activities alone! According to the U.S.Forest Service , recreational-visitor spending in National Forests amounted to nearly $11 billion in 2012, sustaining about 190,000 jobs.
ECONOMIC VALUE: Indian Biologist, Vol XI No 1-2, 1979, estimated the value of a medium-size tree, without the value of its timber or fruits and flowers, in 1979 at Rs 1.55 million !! Production of Oxygen Rs 250,000; Humidity Control & Recycling of Water Rs 300,000; Air Pollution Control Rs 500,000; Controlling Soil Erosion and Fertility Rs 250,000; Sheltering Birds, Squirrels, Insects & Plants Rs 250,000. ( From Nature Interpretation Center, Ministry of Environment and Forests, Ranthambore Tiger Reserve )
IMPROVING FISHERY REVENUES: Scientists at Scripps Institution of Oceanography at University of California, San Diego, found that mangroves demonstrably boost fishery yields by an average of about $37,500 per year per hectare.
AIR/WATER IMPROVEMENT: The United States Department of Agriculture's Forest Service estimates that over a 50-year span, a tree generates $ 162,000 in benefits - $31,250 worth of oxygen, $62,000 worth of air pollution control, recycles $37,500 worth of water, and controls $31,250 worth of soil erosion. Tree roots remove nutrients harmful to water ecology and quality - American Forests, How Trees Fight Climate Change, 1999. The economic value of a tree in terms of its oxygen production is Rs 2.372 million per year ( NGO Delhi Greens, Times of India, Aug 20, 2013)
OXYGEN GENERATION - A typical person consumes about 386 lb of oxygen per year. A healthy tree, say a 32 ft tall ash tree, can produce about 260 lb of oxygen annually " two trees supply the oxygen needs of a person each year! - Center for Urban Horticulture, University of Washington . One acre of forest absorbs six tons of carbon dioxide and puts out four tons of oxygen. - U.S. Department of Agriculture. There is no known non-biological process that can produce oxygen from common materials in sufficient quantity like photosynthesis - The Economist, June 9-16, 2012 .