Managing Global Resources for a Secure Future

2017 Annual Meeting | Oct. 22-25 | Tampa, FL

249 Symposium--Evapotranspiration (ET) Under Pressure: Measuring and Modeling ET Under Drought and Deficit Conditions

Oral Session
ASA Section: Climatology and Modeling
Crops are increasingly grown under deficit irrigation and drought-prone regions to conserve water, optimize crop quality, and use of new plant genetics for drought resistance to expand cultivation.  Estimation and observation of evapotranspiration (ET) under drought and deficit irrigation management practices are crucial to assessing crop productivity, scheduling irrigation, and to assess groundwater recharge.  ET estimation under drought and deficit is challenging due to difficulty in parameterizing water stress.  This session welcomes observations and modeling studies of ET under drought and deficit conditions, with a particular emphasize on studies that seek to combine modeling and observation efforts under stressed conditions.

Approved for SW 2.0 CEUs


Evapotranspiration Measurement and Modeling Community

SSSA Division: Soil Physics and Hydrology
ASA Section: Agronomic Production Systems

Airborne and Satellite Remote Sensing Community
Biophysical Measurements and Sensors Community
Crop Irrigation Strategies and Management Community

Tuesday, October 24, 2017: 1:30 PM-3:30 PM
Tampa Convention Center, Room 9

Ray G. Anderson and Nithya Rajan
1:30 PM
Introductory Remarks
1:35 PM
Crop ET Monitoring and Impact of Deficit Water Supplementation.
Jessica A Torrion, Montana State University; Paul Stoy, Montana State University; Kent A. McVay, Montana State University; Skylar Williams, Montana State University; Mallory Morgan, Montana State University
2:21 PM
Canopy Temperature and Image Based Irrigation Scheduling: Proof of Concept.
Kendall DeJonge, USDA-ARS; Huihui Zhang, USDA - United States Department of Agriculture
2:44 PM
ET for Full and Deficit Irrigated Sorghum Under Drought Conditions.
Susan O'Shaughnessy, USDA-ARS; Steven R. Evett, USDA-ARS; Paul D. Colaizzi, USDA-ARS Conservation and Production Research Laboratory
3:07 PM
Water Requirement of Drip Irrigated Pomegranate.
James Ayars, USDA-ARS; Huihui Zhang, USDA-ARS, Water Management & Systems Research Unit; Dong Wang, USDA-ARS
3:30 PM