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.
Site information
| Site | Location | MAT (°C) | Mean annual precipitation (mm) | Planted (y) | +CO2 (y) | Vegetation | Soil type | Soil texture |
| Aspen | 45°N 89°W | 4.9 | 810 | 1997 | 1998–2009 | Populous tremuloides | Ultic Hapludalf | Sandy loam |
| Duke | 35°N 79°W | 15.5 | 1,140 | 1983 | 1996–2010 | Pinus taeda | Alfic Haplorthod | Clay loam |
