Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Annual net change in HWP carbon stocks for selected years for harvests beginning in 1906 using the IPCC/EPA production accounting approach.
| Inventory year | Stock changea (MgC yr-1) |
|---|---|
| 1910 | 104,116 |
| 1920 | 97,021 |
| 1930 | 75,712 |
| 1940 | 16,051 |
| 1950 | 298,029 |
| 1960 | 591,785 |
| 1970 | 966,125 |
| 1980 | 437,628 |
| 1990 | 481,517 |
| 1995 | 59,764 |
| 2000 | -184,812 |
| 2005 | -151,437 |
| 2006 | -135,679 |
| 2007 | -200,187 |
| 2008 | -198,821 |
| 2009 | -191,391 |
| 2010 | -173,214 |
a Net annual change in carbon in products in use and SWDS
