关于What Good Are Trees的英文,

# Trees cut soil erosion
Rows of trees break up the wind on flatter lands and healthy forests protect soil from water erosion.
# Trees improve air and water quality
A forest floor of leaves and decaying wood acts as a giant sponge by absorbing,filtering,and holding water; one acre of trees provide oxygen for seven people and will clean the air polluted by eight cars operated for 12 hours.
# Trees increase income
Properly managed trees can provide excellent sources of income,such as the sale of trees or wood products.
# Trees save energy
Recent studies show windbreaks can reduce winter fuel consumption by 10 to 30 percent.Trees also save energy by shading - one tree has the cooling effect of five air conditioners.
# Trees protect livestock
Trees reduce the wind and can significantly reduce animal stress.Livestock not only need less feed,but their gains are higher.Shade provided by trees is also helpful to animals on very hot summer days.
# Trees act as a sound barrier
Trees and windbreaks reduce noise from high-speed traffic and other sounds.Plant leaves,branches,and twigs all absorb sounds of different frequencies.
# Trees are home for wildlife
Wooded areas make valuable cover,nesting,and breeding areas for upland game and songbirds.In winter,when all other food is blanketed with snow,seeds and fruits of trees and shrubs provide food for nonmigratory species.
# Trees are a living snow fence
In snow country,properly locating a living fence of trees and shrubs parallel to your driveway or highway helps hold snow on the fields and off the roads.
# Trees improve crop yields
Soil particles blown by strong winds frequently damage small crops.Yields also may be lowered by the effects of hot winds.Trees protect against these hazards.
# Trees beautify the countryside
Well-kept wooded areas,windbreaks,and other tree plantings undeniably enhance the aesthetic value of individual farms and the countryside.