Parameter Tree:
EARTH SCIENCE > BIOSPHERE > VEGETATION > REFORESTATION

Definition:
Reforestation is the replanting of trees in forests where the trees have
been cut down. Reforestation sometimes is undertaken in an effort to
reduce atmospheric carbon dioxide levels by restoring forests, which are
carbon sinks.  


Reference:
Chiras, Daniel D. 1998. Environmental Science. A Systems Approach to
Sustainable Development. Wadsworth Publishing Company. Belmont, California.