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Published online 2 February 2006
Published in J Environ Qual 35:479-489 (2006)
DOI: 10.2134/jeq2005.0144
© 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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Right arrow Watershed and Landscape Processes
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Wildfire Effects on Soil Nutrients and Leaching in a Tahoe Basin Watershed

J. D. Murphya, D. W. Johnsona,*, W. W. Millera, R. F. Walkera, E. F. Carrolla and R. R. Blankb

a Natural Resources and Environmental Science, University of Nevada, Reno, NV 89557
b USDA Agricultural Research Service, 920 Valley Road, Reno, NV 89512


Figure 1
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  		Fig. 1. Forest floor C and nutrient content pre- and post-burn. Values are for surface fuels ≤2.54 cm in diameter. The symbols *, **, and *** indicate significantly different from pre-burn content at the 0.05, 0.01, and 0.001 probability levels, respectively, using Student's t tests. Error bars denote one standard deviation from the mean.

 

Figure 2
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  		Fig. 2. Pre- and post-burn soil total C, total N, C to N ratio, and Bray-P in burned and unburned plots, before and after the fire. Error bars denote one standard deviation from the mean.

 

Figure 3
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  		Fig. 3. Pre- and post-burn soil bicarbonate-extractable P, water-extractable (ortho-P), pH in water (pHH2O), and water-extractable SO42– concentrations in burned and unburned plots, before and after the fire. Error bars denote one standard deviation from the mean.

 

Figure 4
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  		Fig. 4. Pre- and post-burn soil pH in 0.01 M CaCl2 (pHCaCl2), and exchangeable Ca2+, K+, and Mg2+ concentrations in burned and unburned plots, before and after the fire. Error bars denote one standard deviation from the mean.

 

Figure 5
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  		Fig. 5. Pre and post-burn resin lysimeter inorganic N and P fluxes for a soil depth of 10 cm. Error bars denote one standard deviation from the mean.

 

Figure 6
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  		Fig. 6. Soil solution NH4+, NO3–, ortho-P, and SO42– before and after the fire. Error bars denote one standard deviation from the mean.

 




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