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Published online 3 April 2006
Published in J Environ Qual 35:714-725 (2006)
DOI: 10.2134/jeq2005.0337
© 2006 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Tillage and Field Scale Controls on Greenhouse Gas Emissions

Juhwan Leea,*, Johan Sixa, Amy P. Kingb, Chris van Kessela and Dennis E. Rolstonb

a Department of Plant Sciences, University of California, Davis, CA 95616
b Department of Land, Air, and Water Resources, University of California, Davis, CA 95616


Figure 1
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Fig. 1. Location of the study site. The sampling points along the two north–south transects are indicated with crosses.

 

Figure 2
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Fig. 2. Temporal changes in the cumulative amount of greenhouse gas fluxes at field moisture and 75% water holding capacity (WHC) conditions (n = 20 for each treatment). Arrow indicates when samples were brought up to 75% WHC. Bars indicate the standard error of the mean. ST, standard tillage; NT, no-tillage.

 

Figure 3
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Fig. 3. Temporal changes in CO2 production rates, net N2O emission rates, and CH4 consumption rates at field moisture and 75% water holding capacity (WHC) conditions (n = 20 for each treatment). Arrow indicates when samples were brought up to 75% WHC. Bars indicate the standard error of the mean. ST, standard tillage; NT, no-tillage.

 





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