Parameter Tree:
EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > WETLANDS > SWAMPS

Definition:
Swamps are wet areas that are normally covered by water all year and subject
to drying out during the summer. The parameter Swamp may be
colloquially interchanged with the parameter Marshes. 


Reference:
Allaby, M. 1978. A Dictionary of Ecology. Oxford University Press. Oxford,
New York.