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 Wind Erosion and Water Conservation Research: Lubbock, TX
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ARS Home Plains Area Lubbock, Texas Cropping Systems Research Laboratory Wind Erosion and Water Conservation Research Research Publications at this Location





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Title:   Author  item
                                            Gitz, Dennisitem
                                            Baker, Jeffreyitem
                                            Payton, Paxtonitem
                                            Lascano, Robert
  Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 10/18/2011
                                    Publication  Date: 10/20/2011
                                    Citation: Gitz, D.C., Baker, J.T., Payton, P.R., Lascano, R.J. 2011. Field test of an open system to measure canopy gas exchange[abstract]. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America. October 16-20, 2012. San Antonio, TX. Paper No. 224-20.Interpretive Summary:
                                Technical Abstract: Measurements of CO2 and H2O fluxes of crop plants are essential to understanding the impacts of environmental variables on crop productivity.  A portable, CETA (Canopy Evapo-Transpiration and Assimilation) chamber system was built and evaluated at Big Spring, TX.  This chamber system is an open or flow-through system that, once field deployed, can operate unattended for extended periods. To characterize the performance of these chambers under field conditions, six identical chambers were constructed and tested in the field on subsurface drip irrigated cotton in Lubbock, TX.  In addition to quantifying the degree of crop drought stress in terms of canopy gas exchanges we also compared CETA responses with simultaneous leaf-level gas exchanges made with two automated LI-6400 portable photosynthesis systems.


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