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Submitted to: Global Change and Terrestrial Ecosystems
Publication Type: Other Publication Acceptance Date: 1/1/1996 Publication Date: N/A Citation: Kimball, B.A. 1999. Arizona, us, face, 1993-4, wheat; co2 x water uxmc9301. Global Change and Terrestrial Ecosystems. pp 175-179. Interpretive Summary: The CO2 concentration in the atmosphere is increasing and expected to double near the end of the next century. The elevated levels of CO2 affect plant photosynthesis and also cause a partial closure of the stomata in plant leaves through which the plant exchanges CO2 and water vapor with the atmosphere. The magnitude of both effects and the extent to which they change growth, yield, and water requirements of crops is likely to be influenced by other environmental factors such as soil water supply. In order to predict the effect of elevated CO2 on future crop production and to aid in developing improved management strategies, crop growth simulation models are being developed. This paper presents the characteristics of a wheat experiment used to provide data for validating such models. These characteristics include detailed site information, wheat variety information, tillage and crop culture information, and others. This work will benefit both future growers and consumers of wheat and wheat products. Technical Abstract: The experimental metadata are presented for the Arizona free-air CO2 enrichment (FACE) experiment conducted on spring wheat in 1993-4 at ample and limited water supply. |
