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Published online 29 March 2006
Published in Soil Sci Soc Am J 70:806-815 (2006)
DOI: 10.2136/sssaj2005.0333
© 2006 Soil Science Society of America
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Phosphorus Fractions in Soils of Taylor Valley, Antarctica

S. W. Bleckera, J. A. Ippolitoa,*, J. E. Barrettb, D. H. Wallc, R. A. Virginiab and K. L. Norvella

a Dep. of Soil and Crop Sciences, Colorado State Univ., Fort Collins, CO 80523-1170
b The Environmental Studies Program, Dartmouth College, 6182 Steele Hall, Room 113, Hanover, NH 03755
c Natural Resource Ecology Lab., Colorado State Univ., Fort Collins, CO 80523-1499


Figure 1
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  		Fig. 1. Location of study area in the McMurdo Dry Valleys, Antarctica (adapted from Barrett et al., 2004).

 

Figure 2
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  		Fig. 2. Lake Fryxell average P fractionation concentrations: (a) soluble P; (b) Al-bound P; (c) Fe-bound P; (d) occluded P; (e) Ca-bound P; (f) biomass P; (g) labile organic P. Error bars represent one standard error of the mean.

 

Figure 3
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  		Fig. 3. Lake Bonney average P fractionation concentrations: (a) soluble P; (b) Al-bound P; (c) Fe-bound P; (d)occluded P; (e) Ca-bound P; (f) biomass P; (g) labile organic P. Error bars represent one standard error of the mean.

 




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