U.S. forest carbon calculation tool [electronic resource] : forest-land carbon stocks and net annual stock change : software and user's guide / James E. Smith, Linda S. Heath, Michael C. Nichols ; U.S. dep. of agriculture ; Forest service, Northern research station. - [S.l., S.d.]. - 1 compact disc (CD-ROM) ; 12 cm.. - (GTR-NRS ; 13)[MFN: 3154]

UDC: 630.114(086.82)

• Heath, Linda S. (auth.);  Nichols, Michael C. (auth.); 
• U.S. dep. of agriculture;  Forest service, Northern research station; 

Subjects:
- ტყის ნიადაგები - ქვანახშირის მარაგი;

C 2.804 - Electronic Resources Service Division