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Intense forest wildfire sharply reduces mineral soil C and N: the first direct evidence

Bernard T. Bormann,a Peter S. Homann,b Robyn L. Darbyshire,c Brett A. Morrissetted

aEcosystem Processes Program, USDA Forest Service, Pacific Northwest Forest Research Station, Forestry Sciences Laboratory, 3200 SW Jefferson Way, Corvallis, OR 97331, USA.

bDepartment of Environmental Sciences, Huxley College of Environment, Western Washington University, 516 High Street, Bellingham, WA 98225-9181, USA.

cEcosystem Processes Program, USDA Forest Service, Pacific Northwest Forest Research Station, P.O. Box 4580, Brookings, OR 97415, USA.

dForest Science Department, Oregon State University, Forestry Sciences Laboratory, 3200 SW Jefferson Way, Corvallis, OR 97331, USA.

Corresponding author

Published on the web 16 October 2008.

Canadian Journal of Forest Research, 2008, 38:(11) 2771-2783, 10.1139/X08-136

Abstract

Direct evidence of the effects of intense wildfire on forest soil is rare because reliable prefire data are lacking. By chance, an established large-scale experiment was partially burned in the 2002 Biscuit fire in southwestern Oregon. About 200 grid points were sampled across seven burned and seven unburned stands before and after the fire. Fire-related soil changes — including losses of soil organic and inorganic matter — were so large that they became complicated to measure. The 51 Mg·ha–1 of loose rocks on the soil surface after fire suggests erosion of 127 Mg·ha–1 of fine mineral soil, some of which likely left in the fire plume. After accounting for structural changes and erosion with a comparable-layers approach, combined losses from the O horizon and mineral soil totaled 23 Mg C·ha–1 and 690 kg N·ha–1, of which 60% (C) and 57% (N) were lost from mineral horizons. Applying a fixed-depth calculation — commonly used in previous fire studies — that disregards structural changes and erosion led to underestimates of loss of nearly 50% for C and 25% for N. Although recent debate has centered on the effects of postwildfire forest management on wood, wildlife habitat, and fuels, this study indicates that more consideration should be given to the possible release of greenhouse gases and reduction of future forest productivity and CO2 uptake.

References

  • Agee JK. 1991. Fire history along an elevational gradient in the Siskiyou Mountains, Oregon. Northwest Sci. 65: 188-199 ISI.
  • Agee, J.K. 1993. Fire ecology of Pacific Northwest forests. Island Press, Washington, D.C.
  • Baird M, Zabowski D, Everett RL. 1999. Wildfire effects on carbon and nitrogen in inland coniferous forests. Plant Soil 209: 233-243 CrossRef, ISI.
  • Banta RM, Olivier LD, Holloway ET, Kropfli RA, Bartram BW, Cupp RE, Post MJ. 1992. Smoke-column observations from two forest fires using Doppler Lidar and Doppler radar. J. Appl. Meteorol. 31: 1328-1349 CrossRef.
  • Blackwelder E. 1927. Fire as an agent in rock weathering. J. Geol. 35: 134-140 ISI.
  • Bormann BT, Tarrant RF, McClellan MH, Savage T. 1989. Chemistry of rainwater and cloud water at remote sites in Alaska and Oregon. J. Environ. Qual. 18: 149-152 ISI.
  • Bormann, B.T., Homann, P.S., Bednar, L., Cairns, M.A., and Barker, J. 1994. Field studies to evaluate stand-scale effects of forest management on ecosystem carbon storage. US Environmental Protection Agency Environmental Research Laboratory, Corvallis, Ore. EPA/600/R-94.
  • Bormann BT, Spaltenstein H, McClellan M, Ugolini FC, Cromack K Jr, Nay SM. 1995. Rapid soil development after windthrow in pristine forests. J. Ecol. 83: 747-757 CrossRef, ISI.
  • Bormann, B.T., Lee, D.C., Kiester, A.R., Spies, T.A., Haynes, R.W., Reeves, G.H., and Raphael, M.G. 2006. Chapter 3: Synthesis: interpreting the Northwest Forest Plan as more than the sum of its parts. Northwest Forest Plan — the first ten years (1994–2003): synthesis of monitoring and research results. Edited by R.W. Haynes, B.T. Bormann, and J.R. Martin. USDA For. Serv. Gen. Tech. Rep. PNW-GTR-651. pp. 23–48.
  • Bremner, J.M., and Mulvaney, C.S. 1982. Total nitrogen. Methods of soil analysis. Edited by A.L. Page, R.H. Miller, and D.R. Keeney. Monogr 9. Vol. 2. American Society of Agronomy, Madison, Wisc. pp. 595–624.
  • Brown, J.K., Oberheu, R.D., and Johnson, C.M. 1982. Handbook for inventorying surface fuels and biomass in the Interior West. USDA For. Serv. Gen. Tech. Rep. INT-129.
  • Campbell J, Donato D, Azuma D, Law B. 2007. Pyrogenic carbon emission from a large wildfire in Oregon, United States. J. Geophys. Res. 112: G04014 CrossRef.
  • Carroll EF, Miller WW, Johnson DW, Saito L, Qualls RG, Walker RF. 2007. Spatial analysis of a high-magnitude erosion event following a Sierran wildfire. J. Environ. Qual. 36: 1105-1111 CrossRef, Medline, ISI.
  • Certini G. 2005. Effects of fire on properties of forest soils: a review. Oecologia (Berlin) 143: 1-10 CrossRef, Medline, ISI.
  • Crutzen PJ, Andreae MO. 1990. Biomass burning in the tropics: impact on atmospheric chemistry and biogeochemical cycles. Science (Washington, D.C.) 250: 1669-1678 CrossRef, Medline, ISI.
  • DeBano, L.F., Neary, D.G., and Ffolliott, P.F. 1998. Fire effects on ecosystems. John Wiley and Sons, New York.
  • Dombeck M. 2001. A national fire plan for future land health. Fire Manage. Today 61: 4-8 .
  • Donato DC, Fontaine JB, Campbell JL, Robinson WD, Kauffman JB, Law BE. 2006. Post-wildfire logging hinders regeneration and increases fire risk. Science (Washington, D.C.) 311: 352 CrossRef, Medline, ISI.
  • Dyrness CT, Van Cleve K, Levison JD. 1989. The effect of wildfire on soil chemistry in four forest types in interior Alaska. Can. J. For. Res. 19: 1389-1396 Abstract, ISI.
  • Edmonds RL, Hsiang T. 1987. Forest floor and soil influence on response of Douglas-fir to urea. Soil Sci. Soc. Am. J. 51: 1332-1337 ISI.
  • Ellert BH, Janzen HH, Entz T. 2002. Assessment of a method to measure temporal change in soil carbon storage. Soil Sci. Soc. Am. J. 66: 1687-1695 ISI.
  • Environmental Impact Statement. 2004. The Biscuit Fire Recovery Project. USDA Forest Service, Pacific Northwest Region, Portland, Ore.
  • Fernandez I, Cabaneiro A, Carballas T. 1997. Organic matter changes immediately after a wildfire in an Atlantic forest soil and comparison with laboratory soil heating. Soil Biol. Biochem. 29: 1-11 CrossRef, ISI.
  • Gedalof Z, Peterson DL, Mantua NJ. 2005. Atmospheric, climatic, and ecological controls on extreme wildfire years in the Northwestern United States. Ecol. Appl. 15: 154-174 CrossRef, ISI.
  • Government Accounting Office. 2004. Analysis of fire response, resource availability, and personnel certification standards. GAO Rep. 04-426. Government Accounting Office, Washington, D.C.
  • Grier CC. 1975. Wildfire effects on nutrient distribution and leaching in a coniferous ecosystem. Can. J. For. Res. 5: 599-607 Abstract.
  • Hershey KT, Meslow EC, Ramsey FL. 1998. Characteristics of forests at spotted owl nest sites in the Pacific Northwest. J. Wildl. Manage. 62: 1398-1410 CrossRef, ISI.
  • Homann PS, Bormann BT, Boyle JR. 2001. Detecting treatment differences in soil carbon and nitrogen resulting from forest manipulations. Soil Sci. Soc. Am. J. 65: 463-469 ISI.
  • Homann PS, Remillard SM, Harmon ME, Bormann BT. 2004. Carbon storage in coarse and fine fractions of Pacific Northwest old-growth forests. Soil Sci. Soc. Am. J. 68: 2023-2030 ISI.
  • Homann PS, Bormann BT, Boyle JR, Darbyshire RL, Bigley R. 2008. Soil C and N minimum detectable changes and treatment differences in a multi-treatment forest experiment. For. Ecol. Manage. 255: 1724-1734 ISI.
  • Jenkinson DS, Rayner JH. 1977. The turnover of soil organic matter in some of the Rothamsted classical experiments. Soil Sci. 123: 298-305 CrossRef, ISI.
  • Johnson DW, Susfalk RB, Caldwell TG, Murphy JD, Miller WW, Walker RF. 2004. Fire effects on carbon and nitrogen budgets in forests. Water Air Soil Pollut. Foc. 4: 263-275 CrossRef.
  • Johnson DW, Murphy JD, Walker RF, Glass D, Miller WW. 2007. Wildfire effects on forest carbon and nutrient budgets. Ecol. Engineer. 31: 183-192 CrossRef, ISI.
  • Little RL, Peterson DL, Silsbee DG, Shainsky LJ, Bednar LF. 1995. Radial growth patterns and the effects of climate on second-growth Douglas-fir (Pseudotsuga menziesii) in the Siskiyou Mountains, Oregon. Can J. For. Res. 25: 724-735 Abstract, ISI.
  • McKenzie D, Gedenof Z, Peterson DL, Mote P. 2004. Climatic change, wildfire, and conservation. Conserv. Biol. 18: 890-902 CrossRef, ISI.
  • Murphy JD, Johnson DW, Miller WW, Walker RF, Carroll EF, Blank RR. 2006. Wildfire effects on soil nutrients and leaching in a Tahoe Basin watershed. J. Environ. Qual. 35: 479-489 CrossRef, Medline, ISI.
  • Neary DG, Klopatek CC, DeBano LF, Ffolliot PF. 1999. Fire effects on belowground sustainability: a review and synthesis. For. Ecol. Manage. 122: 51-71 CrossRef, ISI.
  • Neuenschwander, L.F., Menakis, J.P., Miller, M., Sampson, R.N., Hardy, C., Averill, R., and Mask, R. 2000. Indexing Colorado watersheds to risk of wildfire. Mapping wildfire hazards and risks. Edited by R.N. Sampson, R.D. Atkinson, and J.W. Lewis. The Haworth Press, Inc., New York. pp. 35–56.
  • Newton M, Fitzgerald S, Rose RR, Adams PW, Tesch SD, Sessions J, Atzet T, Powers RF, Skinner C. 2006. Comment on “Post-wildfire logging hinders regeneration and increases fire risk”. Science 313: 615a CrossRef, Medline.
  • Palmer TY. 1981. Large fire winds, gasses and smoke. Atmos. Environ. 15: 2079-2090 CrossRef, ISI.
  • Prieto-Fernandez A, Villar MC, Carballas M, Carrallas T. 1993. Short-term effects of a wildfire on the nitrogen status and its mineralization kinetics in an Atlantic forest soil. Soil Biol. Biochem. 25: 1657-1664 CrossRef.
  • Raymond CL, Peterson DL. 2005. Fuel treatments alter the effects of wildfire in a mixed-evergreen forest, Oregon, USA. Can. J. For. Res. 35: 2981-2995 Abstract, ISI.
  • Samsonov YN, Koutsenogii KP, Makarov VI, Ivanov AV, Ivanov VA, McRae DJ, Conard SG, Baker SP, Ivanova GA. 2005. Particulate emissions from fires in central Siberian Scots pine forests. Can. J. For. Res. 35: 2207-2217 Abstract, ISI.
  • Shatford JPA, Hibbs DE, Puettmann KJ. 2007. Conifer regeneration after forest fire in the Klamath–Siskiyous: how much, how soon? J. For. 105: 139-146 .
  • Stegemoeller KA, Chappell HN. 1990. Growth response of unthinned and thinned Douglas-fir stands to single and multiple applications of nitrogen. Can. J. For. Res. 20: 343-349 Abstract, ISI.
  • Thompson JR, Spies TA, Ganio LM. 2007. Re-burn severity in managed and unmanaged vegetation in a large wildfire. Proc. Natl. Acad. Sci. U.S.A. 104: 10743-10748 CrossRef, Medline, ISI.
  • Trentmann J, Luderer G, Winterrath T, Fromm M, Servranckx R, Textor C, Herzog M, Andreae MO. 2006. Modeling of biomass smoke injection into the lower stratosphere by a large forest fire (Part I): reference simulation. Atmos. Chem. Phys. 6: 5247-5260 ISI.
  • Westerling AL, Hidalgo HG, Cayan DR, Swetnam TW. 2006. Warming and earlier spring increase western U.S. forest wildfire activity. Science 313: 940-943 CrossRef, Medline, ISI.
  • Yanai RD, Currie WS, Goodale CL. 2003. Soil carbon dynamics following forest harvest: an ecosystem paradigm reviewed. Ecosystems (N. Y., Print) 6: 197-212 CrossRef, ISI.

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