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Carbon and Nitrogen Dynamics in Lumbricus terrestris (L.) Burrow Soil

Relationship to Plant Residues and Macropores

José A. Amador*,a, Josef H. Görresa and Mary C. Savina,b

a Lab. of Soil Ecology and Microbiology, 024 Coastal Institute in Kingston, Univ. of Rhode Island, Kingston, RI 02881
b Dep. of Crop, Soil, and Environmental Sciences, 115 Plant Science Building, Univ. of Arkansas, Fayetteville, AR 72701



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  		Fig. 1. Corn litter remaining aboveground in CTRL, ARTF, LEAF, and WORM treatments, corn litter remaining in LEAF and WORM burrows, earthworm live weight and population density in WORM treatments, and gravimetric soil water content in CTRL, ARTF, LEAF, and WORM treatments as a function of incubation time. Bars represent one standard deviation (n = 3).

 


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  		Fig. 2. Total soil C, dissolved organic C (DOC), and C mineralization rate, in soil from CTRL, ARTF, LEAF, and WORM treatments as a function of incubation time. Bars represent one standard deviation (n = 3).

 


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  		Fig. 3. Total soil N, inorganic N, ammonium-N, and nitrate-N in soil from CTRL, ARTF, LEAF, and WORM treatments as a function of incubation time. Bars represent one standard deviation (n = 3).

 




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