Glossary | U.S. Green Building Council
Upcoming Scheduled Maintenance for USGBC.org
USGBC.org will be offline from Friday, May 6 at 9:00 pm EST until Saturday, May 7 at 12:00 pm EST.
Email us or call 1-800-795-1747 for assistance. Thanks for your patience.
Please upgrade your browser. This site requires a newer version to work correctly. Read more

evapotranspiration

the combination of evaporation and plant transpiration into the atmosphere. Evaporation occurs when liquid water from soil, plant surfaces, or water bodies becomes vapor. Transpiration is the movement of water through a plant and the subsequent loss of water vapor.