TERMINOLOGY AND DATA TABLES 



The following section contains definitions that are relevant to the timber resource data 

 presented in this resource bulletin. 



TERMINOLOGY 

 Land 



Bureau of the Census .--Area of dry land and land temporarily or partly covered by water, 

 such as marshes, swamps, and river flood plains; streams, sloughs, estuaries, and canals less 

 than 1/8 of a statute mile in width; and lakes, reservoirs, and ponds less than 40 acres in area. 



Resources Evaluation . --The same as the Bureau of the Census except minimum width of streams, 

 etc., is 120 feet, and minimum size of lakes, etc., is 1 acre. 



Water 



Bureau of the Census . --Streams, sloughs, estuaries, and canals more than 1/8 of a statute 

 mile in width; and lakes, reservoirs, and ponds more than 40 acres in area. 



Resources Evaluation . — The same as the Bureau of the Census except minimum width of streams, 

 etc., is 120 feet, and minimum size of lakes, etc., is 1 acre. 



Land Use Classes 



Forest land . --Land at least 10.0 percent stocked by forest trees of any size, or formerly 

 having had such tree cover, and not currently developed for nonforest use. 



Commercial timberland . --Forest land producing or capable of producing crops of industrial 

 wood and not withdrawn from timber utilization. (Areas qualifying have the capability of 

 producing in excess of 20 cubic feet per acre per year of industrial wood in natural stands. 

 Currently inaccessible and inoperable areas are included.) 



Productive-reserved forest land . --Forest land sufficiently productive to qualify as 

 commercial timberland, but withdrawn from timber utilization through statute, administrative 

 designation, or exclusive use for Christmas tree production. 



Other forest land . --Forest land incapable of producing 20 cubic feet per acre per year of 

 industrial wood in natural stands because of adverse site conditions; includes both reserved and 

 nonreserved forest land. 



Nonforest land . — Land that has never supported forests and lands formerly forested where use 

 for timber management is precluded by development for other uses. 



Public Ownership Classes 



National Forest lands . --Federal lands legally designated as National Forest or purchase 

 units and other lands under the administration of the Forest Service, including experimental 

 areas and Bankhead-Jones Title III lands. 



Bureau of Land Management lands . — Federal lands administered by the Bureau of Land 

 Management . 



Miscellaneous Federal lands . --Federal lands other than the following: (1) National Forest 

 lands; (2) lands administered by the Bureau of Land Management; and (3) Indian trust lands. 



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