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Simulation of Soil Carbon Dioxide Flux During Plant Residue Decomposition

H. Wang*,a, D. Curtinb, Y. W. Jamea, B. G. McConkeya and H. F. Zhouc

a Semiarid Prairie Agricultural Research Centre, Agriculture and Agri-Food Canada, Box 1030, Swift Current, SK, Canada S9H 3X2
b New Zealand Institute for Crop & Food Research, Private Bag 4704, Christchurch, New Zealand
c Shenyang Agricultural Univ., 120 Dongling Road, Shengyang, PRC



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  		Fig. 1. Measured and predicted (...CENTURY, —modified model) daily CO2-C fluxes. Bars are standard errors of measurements.

 


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  		Fig. 2. Measured and predicted total CO2-C emissions (•,{circ} no straw controls, {blacktriangleup},{triangleup} fresh straw incorporated, {blacktriangledown},{triangledown} weathered straw incorporated, {blacksquare},{square} fresh straw on the surface, {diamondsuit},{diamond} weathered straw on the surface under continuously moist (closed symbols) and moist-dry (open symbols) conditions. Bars are standard errors of measurements.

 


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  		Fig. 3. Measured and predicted soil mineral N at the end of the experiment (•,{circ} no straw controls, {blacktriangleup},{triangleup} fresh straw incorporated, {blacktriangledown},{triangledown} weathered straw incorporated, {blacksquare},{square} fresh straw on the surface, {diamondsuit},{diamond} weathered straw on the surface under continuously moist (closed symbols) and moist-dry (open symbols) conditions. Bars are standard errors of measurements.

 




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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education		 Vadose Zone Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 2002 by the Soil Science Society of America.