In a forest the
crowns of individual trees touch to form a single canopy.
Woodlands
In a woodland,
trees grow far apart, so that the canopy is open.
DEFORESTATION
Deforestation is the permanent destruction
of indigenous forests and woodlands. The term does not include the
removal of industrial forests such as plantations of gums or pines.
Deforestation has resulted in the reduction of indigenous forests
to four-fifths of their pre-agricultural area. Indigenous forests
now cover 21% of the earth's land surface.
The
World Resources Institute regards deforestation as one of the world's
most pressing land-use problems