Processes affecting carbon storage in the forest floor and in downed woody debris

The Potential of U.S. Forest Soils to Sequester Carbon and Mitigate the Greenhouse Effect

Volumn , Issue , 2002, Pages 135-157

  Currie, William S ^a   Yanai, Ruth D ^b   Piatek, Kathryn B ^b   Prescott, Cindy E ^c   Goodale, Christine L ^d  

^a UNIVERSITY OF MARYLAND CENTER FOR ENVIRONMENTAL SCIENCE   (United States)

^b STATE UNIVERSITY OF NEW YORK   (United States)

^c UNIVERSITY OF BRITISH COLUMBIA   (Canada)

^d WOODS HOLE RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 84976266647     PISSN: None     EISSN: None     Source Type: Book    
DOI: None     Document Type: Chapter

References (160)

1. Aber, J.D., Melillo, J.M., and McClaugherty, C.A., Predicting long-term patterns of mass loss, nitrogen dynamics, and soil organic matter formation from initial fine litter chemistry in temperate forest ecosystems, Can. J. Bot., 68: 2201-2208, 1990.
2. Aerts, R., Climate, leaf litter chemistry and leaf litter decomposition in terrestrial ecosystems: a triangular relationship, Oikos, 79: 439-449, 1997.
3. Aerts, R. and Decaluwe, H., Aboveground productivity and nutrient turnover of Molina caerulea along an experimental gradient of nutrient availability, Oikos, 54: 320-325, 1989.
4. Agee, J.K. and Huff, M.H., Fuel succession in western hemlock/Douglas-fir forest, Can J. For. Res., 17: 697-704, 1987.
5. Alperin, M.J. et al., How can we best characterize and quantify pools and fluxes of nonliving organic matter? in Role of Nonliving Organic Matter in the Earth's Carbon Cycle, Zepp, R.G. and Sonntag, C., Eds., John Wiley & Sons, Chichester, U.K., 1995, p. 66-80.
6. Arthur, M.A., Tritton, L.M., and Fahey, T.J., Dead bole mass and nutrients remaining 23 years after clear- felling of a northern hardwood forest, Can. J. For. Res., 23: 1298-1305, 1993.
7. Barber, B.L. and Van Lear, D.H., Weight loss and nutrient dynamics in decomposing woody loblolly pine logging slash, Soil Sci. Soc. Am. J., 48: 906-910, 1984.
8. Berg, B., Litter mass-loss rates and decomposition patterns in some needle and leaf litter types: long-term decomposition in a Scots pine forest, VII, Can. J. Bot., 69: 1449-1456, 1991.
9. Berg, B., Initial rates and limit values for decomposition of Scots pine and Norway spruce needle litter: a synthesis for N-fertilized forest stands, Can. J. For. Res., 30: 122-135, 2000.
10. Berg, B. et al., Litter mass loss in pine forests of Europe and eastern United States as compared to actual evapotranspiration on a European scale, Biogeochemistry, 20: 127-153, 1993.
11. Berg, B. and Ekbohm, G., Nitrogen immobilization in decomposing needle litter at variable carbon:nitrogen ratios, Ecology, 64: 63-67, 1983.
12. Berg, B. and Ekbohm, G., Reduction of decomposition rates of Scots pine needle litter due to heavy-metal pollution, Water Air Soil Pollut., 59: 165-177, 1991.
13. Berg, B. et al., Maximum decomposition limits of forest litter types: a synthesis, Can. J. Bot., 74: 659-672, 1996.
14. Berg, B., Staaf, H., and Wessen, B., Decomposition and nutrient release in needle litter from nitrogen-fertilized Scots pine (Pinus sylvestris) stands, Scand. J. For. Res., 2: 399-415, 1987.
15. Birdsey, R.A. and Heath, L.S., Carbon changes in U.S. forests, in Productivity of America's Forests and Climate Change, Joyce, L.A., Ed., Gen. Tech. Rep. RM-271, USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO, 1995, p. 56-70.
16. Blair, J.M. and Crossley, D.A., Jr., Litter decomposition, nitrogen dynamics and litter microarthropods in a southern Appalachian hardwood forest 8 years following clearcutting, J. Appl. Ecol., 25: 683-698, 1988.
17. Boone, R.D., Sollins, P., and Cromack, K.J., Stand and soil changes along a mountain hemlock death and regrowth sequence, Ecology, 69: 714-722, 1988.
18. Burke, I.C., Control of nitrogen mineralization in a sagebrush steppe landscape, Ecology, 70: 1115-1126, 1989.
19. Canham, C.D. and Loucks, O.L., Catastrophic windthrow in the presettlement forests of Wisconsin, Ecology, 65: 803-809, 1984.
20. Carreiro, M.M. et al., Microbial enzyme shifts explain litter decay responses to simulated nitrogen deposition, Ecology, 81: 2359-2365, 2000.
21. Clark, D.F. et al., Coarse woody debris in sub-boreal spruce forests of west-central British Columbia, Can. J. For. Res., 28: 284-290, 1998.
22. Coleman, D.C. and Crossley, D.A., Jr., Fundamentals of Soil Ecology, Academic Press, San Diego, CA, 1996.
23. Cotrufo, M.F., Ineson, P., and Roberts, D., Decomposition of birch leaf litters with varying C-to-N ratios, Soil Biol. Biochem., 27: 1219-1221, 2001.
24. Covington, W.W. and Aber, J.D., Leaf production during secondary succession in northern hardwoods, Ecology, 61: 200-204, 1980.
25. Covington, W.W., Changes in the forest floor organic matter and nutrient content following clear cutting in northern hardwoods, Ecology, 62: 41-48, 1981.
26. Cronan, C.S., Patterns of organic acid transport from forested watersheds to aquatic ecosystems, in Organic Acids in Aquatic Ecosystems, Perdue, E.M. and Gjessing, E.T., Eds., John Wiley & Sons, New York, 1990, p. 245-260.
27. Cronan, C.S. and Aiken, G.R., Chemistry and transport of soluble humic substances in forested watersheds of the Adirondack Park, New York, Geochimica et Cosmochimica Acta, 49: 1697-1705, 1985.
28. Currie, W.S. and Aber, J.D., Modeling leaching as a decomposition process in humid, montane forests, Ecology, 78: 1844-1860, 1997.
29. Currie, W.S. et al., Vertical transport of dissolved organic C and N under long-term N amendments in pine and hardwood forests, Biogeochemistry, 35: 471-505, 1996.
30. Currie, W.S. and Nadelhoffer, K.J., The imprint of land use history: contrasting patterns of carbon and nitrogen stocks in woody detritus at the Harvard Forest, Ecosystems, in press.
31. Currie, W.S., Nadelhoffer, K.J., and Aber, J.D., Soil detrital processes controlling the movement of15N tracers to forest vegetation, Ecol. Appl., 9: 87-102, 1999.
32. Currie, W.S., Nadelhoffer, K.J., and Colman, B., Long-term movement of15N tracers into fine woody debris under chronically elevated N inputs, Plant Soil, 238: 313-323, 2002.
33. Dawson, H.J. et al., Role of soluble organics in the soil processes of a podzol, central Cascades, Wash. Soil Sci., 126: 290-296, 1978.
34. Dosskey, M.G. and Bertsch, P.M., Transport of dissolved organic matter through a sandy forest soil, Soil Sci. Soc. Am. J., 61: 920-927, 1997.
35. Douglas, L.A. and Tedrow, J.C.F., Organic matter decomposition rates in arctic soils, Soil Sci., 88: 305-312, 1959.
36. Duvall, M.D. and Grigal, D.F., Effects of timber harvesting on coarse woody debris in red pine forests across the Great Lakes states, U.S.A., Can. J. For. Res., 29: 1926-1934, 1999.
37. Edmonds, R.L. et al., Decomposition of Douglas-fir and red alder wood in clear-cuttings, Can. J. For. Res., 16: 822-831, 1986.
38. Edmonds, R.L. and Eglitis, A., The role of the Douglas-fir beetle and wood borers in the decomposition of and nutrient release from Douglas-fir logs, Can. J. For. Res., 19: 853-859, 1989.
39. Erickson, H.E., Edmonds, R.L., and Peterson, C.E., Decomposition of logging residues in Douglas-fir, western hemlock, Pacific silver-fir, and ponderosa pine ecosystems, Can. J. For. Res., 15: 914-921, 1985.
40. Evans, A., Jr., Zelazny, L.W., and Zipper, C.E., Solution parameters influencing dissolved organic carbon levels in three forest soils, Soil Sci. Soc. Am. J., 52: 1789-1792, 1988.
41. Fahey, T.J. and Hughes, J.W., Fine root dynamics in a northern hardwood forest ecosystem, Hubbard Brook Experimental Forest, NH, J. Ecol., 82: 533-548, 1994.
42. Federer, C.A., Subjectivity in the separation of organic horizons of the forest floor, Soil Sci. Soc. Am. J., 46: 1090-1093, 1982.
43. Federer, C.A., Organic matter and nitrogen content of the forest floor in even-aged northern hardwoods, Can. J. For. Res., 14: 763-767, 1984.
44. Field, C.B. et al., Responses of terrestrial ecosystems to the changing atmosphere — A resource-based approach, Ann. Rev. Ecol. Syst., 23: 201-235, 1992.
45. Gale, N., The aftermath of tree death: coarse woody debris and the topography in four tropical rain forests, Can. J. For. Res., 30: 1489-1493, 2000.
46. Gallardo, A. and Merino, J., Leaf decomposition in two Mediterranean ecosystems of southwest Spain: influence of substrate quality, Ecology, 74: 152-161, 1993.
47. Gaudinski, J.B. et al., Soil carbon cycling in a temperate forest: radiocarbon-based estimates of residence times, sequestration rates, and partitioning of fluxes, Biogeochemistry, 51: 33-69, 2000.
48. Giardina, C.P. and Ryan, M.G., Evidence that decomposition rates of organic carbon in mineral soil do not vary with temperature, Nature, 404: 858-861, 2001.
49. Giardina, C.P. et al., Tree species effects and soil textural controls on carbon and nitrogen mineralization rates, Soil Sci. Soc. Am. J., 65: 127-1279, 2001.
50. Gore, J.A. and Patterson, W.A., III, Mass of downed wood in northern hardwood forests in New Hampshire: potential effects in forest management, Can. J. For. Res., 16: 335-339, 1986.
51. Gosz, J. R., Likens, G.E., and Bormann, F.H., Nutrient release from decomposing leaf and branch litter in the Hubbard Brook Forest, New Hampshire, Ecol. Mon., 43: 173-191, 1973.
52. Grogan, P., Bruns, T.D., and Chapin, F.S., III, Fire effects on ecosystem nitrogen cycling in a Californian bishop pine forest, Oecologia, 122: 537-544, 2000.
53. Guggenberger, G. and Zech, W., Dissolved organic carbon in forest floor leachates: simple degradation products or humic substances? Sci. Total Environ., 152: 37-47, 1994.
54. Harmon, M.E. et al., Ecology of coarse woody debris in temperate ecosystems, in Advances in Ecological Research, MacFadyen, A. and Ford, E.D., Eds., Vol. 15, Academic Press, London, 1986, p. 133-302.
55. Harmon, M.E., Cromack, K., Jr., and Smith, B.G., Coarse woody debris in mixed-conifer forests, Sequoia National Park, California, Can. J. For. Res., 17: 1265-1272, 1987.
56. Harmon, M.E. and Hua, C., Coarse woody debris dynamics in two old-growth ecosystems, BioScience, 41: 604-610, 1991.
57. Haynes, R.J., Mineral Nitrogen in the Plant-Soil System, Academic Press, Toronto, 1986.
58. Heath, L.S. and Smith, J. E., Soil carbon accounting and assumptions for forestry and forest-related land use change, in The Impact of Climate Change on America's Forests, Joyce, L.A. and Birdsey, R.A., Eds., Gen. Tech. Rep. RMRS-GTR-59, USDA Forest Service, Rocky Mountain Research Station, Fort Collins, CO, 2000, p. 89-101.
59. Hely, C., Bergeron, Y., and Flannigan, M.D., Coarse woody debris in the southeastern Canadian boreal forest: composition and load variations in relation to stand replacement, Can. J. For. Res., 30: 674-687, 2000.
60. Hobbie, S.E., Temperature and plant species control over litter decomposition in Alaskan tundra, Ecological Monographs, 66: 503-522, 1996.
61. Hobbie, S.E., Interactions between litter lignin and soil nitrogen availability during leaf litter decomposition in a Hawaiian montane forest, Ecosystems, 3: 484-494, 2000.
62. Houghton, R.A., Davidson, E.A., and Woodwell, G.M., Missing sinks, feedbacks, and understanding the role of terrestrial ecosystems in the global carbon balance, Global Biogeochemical Cycles, 12: 25-34, 1998.
63. Howard, J.O., Ratios for Estimating Logging Residue in the Pacific Northwest, Res. Pap. 288, USDA Forest Service, Pacific Northwest Forest and Range Experiment Station, Portland, OR, 1981.
64. Howard, D.M. and Howard, P.J.A., Relationships between CO2 evolution, moisture content and temperature for a range of soil types, Soil Biol. Biochem., 25: 1537-1546, 1993.
65. Howard, PJ.A. and Howard, D.M., Microbial decomposition of tree and shrub leaf litter, 1: weight loss and chemical composition of decomposing litter, Oikos, 25: 341-352, 1974.
66. Jardine, P.M., Weber, N.L., and McCarthy, J.F., Mechanisms of dissolved organic carbon adsorption on soil, Soil Sci. Soc. Am. J., 53: 1378-1385, 1989.
67. Jenny, H., Gessels, S.P., and Bingham, F.S., Comparative studies of decomposition rates of organic matter in temperate and tropical regions, Soil Sci., 68: 419-432, 2001.
68. Jobaggy, E.G. and Jackson, R.B., The vertical distribution of soil organic carbon and its relation to climate and vegetation, Ecol. Appl., 10: 423-436, 2000.
69. Johansson, M.B., Berg, B., and Meentemeyer, V., Litter mass loss rates in late stages of decomposition in a climatic transect of pine forests: long-term decomposition in a Scots pine forest 9, Can. J. Bot., 73: 1509-1521, 1995.
70. Kaiser, K., Guggenberger, G., and Zech, W., Sorption of DOM and DOM fractions to forest soils, Geoderma, 74: 281-303, 1996.
71. Kalbitz, K. et al., Controls on the dynamics of dissolved organic matter in soils: a review, Soil Sci., 165: 277-304, 2000.
72. Katterer, T. et al., Temperature dependence of organic matter decomposition: a critical review using literature data analyzed with different models, Biol. Fert. Soils. 27: 258-262, 1998.
73. Keyser, P.T., Kirk, T.K., and Zeikus, J.G., Lignolytic enzyme system of Phanerochaete chrysosporium synthesized in the absence of lignin in response to nitrogen starvation, J. Bacteriol., 135: 790-797, 1978.
74. Kirschbaum, M.U.F., The temperature dependence of soil organic matter decomposition, and the effect of global warming on soil organic C storage, Soil Biol. Biochem., 27: 753-760, 1995.
75. Koutika, L.-S. et al., Factors influencing carbon decomposition of topsoils from the Brazilian Amazon Basin, Biol. Fert. Soils, 28: 436-438, 1999.
76. Krankina, O.N., Harmon, M.E., and Griazkin, A.V., Nutrient stores and dynamics of woody detritus in a boreal forest: modeling potential implications at the stand level, Can. J. For. Res., 29: 20-32, 1998.
77. Laiho, R. and Prescott, C.E., The contribution of coarse woody debris to carbon, nitrogen, and phosphorus cycles in three Rocky Mountain coniferous forests, Can. J. For. Res., 29: 1592-1603, 1999.
78. Lavelle, P. et al., A hierarchical model for decomposition in terrestrial ecosystems: application to soils of the humid tropics, Biotropica, 25: 130-150, 1993.
79. Lee, P.C. et al., Characteristics and origins of deadwood material in aspen-dominated boreal forests, Ecol. Appl., 7: 691-701, 1997.
80. Little, S.N. and Ohmann, J.L., Estimating nitrogen lost from forest floor during prescribed fires in Douglasfir/western hemlock clearcuts, Forest Sci., 34: 152-164, 1988.
81. MacMillan, P.C., Decomposition of coarse woody debris in an old-growth Indiana forest, Can. J. For. Res., 18: 1353-1362, 1988.
82. Magill, A.H. and Aber, J.D., Long-term effects of experimental nitrogen additions on foliar litter decay and humus formation in forest ecosystems, Plant Soil, 203: 301-311, 1998.
83. Matthews, E., Global litter production, pools, and turnover times: estimates from measurement data and regression models, J. Geophys. Res., 102: 1871-1880, 1997.
84. Mattson, K.G., Swank, W.T., and Waide, J.B., Decomposition of woody debris in a regenerating, clear-cut forest in the Southern Appalachians, Can. J. For. Res., 17: 712-721, 1987.
85. McClaugherty, C.A., Soluble polyphenols and carbohydrates in throughfall and leaf litter decomposition, Acta Oecologia/Oecol. Gener., 4: 375-385, 1983.
86. McDowell, W.H. and Wood, T., Podzolization: soil processes control dissolved organic carbon concentrations in stream water, Soil Sci., 137: 23-32, 1984.
87. McGee, G.G., The contribution of beech bark disease-induced mortality to coarse woody debris loads in northern hardwood stands of Adirondack Park, New York, U.S.A., Can. J. For. Res., 30: 1453-1462, 2000.
88. McHale, PJ., Mitchell, M.J., and Bowles, F.P., Soil warming in a northern hardwood forest: trace gas fluxes and leaf litter decomposition, Can. J. For. Res., 28: 1365-1372, 1998.
89. Meentemeyer, V., Macroclimate and lignin control of litter decomposition rates, Ecology, 59: 465-472, 1978.
90. Melillo, J.M. et al., Carbon and nitrogen dynamics along the decay continuum: plant litter to soil organic matter, Plant Soil, 115: 189-198, 1989.
91. Melillo, J.M., Aber, J.D., and Muratore, J.F., Nitrogen and lignin control of hardwood leaf litter decomposition dynamics, Ecology, 63: 621-626, 1982.
92. Melillo, J.M. et al., Global change and its effects on soil organic carbon stocks, in Role of Nonliving Organic Matter in the Earth's Carbon Cycle, Zepp, R.G. and Sonntag, C., Eds., Dahlem Workshop Reports, John Wiley & Sons, Chichester, 1995, pp. 175-189.
93. Melillo, J.M. et al., Terrestrial biotic responses to environmental change and feedbacks to climate, in Climate Change 1995: The Science of Climate Change, Houghton, J.T. et al., Eds., Cambridge University Press, Cambridge, U.K., 1996, p. 447-481.
94. Michalzik, B. et al., Fluxes and concentrations of dissolved organic carbon and nitrogen — a synthesis for temperate forests, Biogeochemistry, 52: 173-205, 2001.
95. Minderman, G., Addition, decomposition and accumulation of organic matter in forests, Ecology, 56: 355-362, 1968.
96. Mladenoff, D.J., The relationship of the soil seed bank and understory vegetation in old-growth northern hardwood-hemlock treefall gaps, Can. J. For. Res., 68: 2714-2721, 1990.
97. Mooney, H.A. et al., Ecosystem physiology responses to global change, in The Terrestrial Biosphere and Global Change, Walker, B. et al., Eds., IGBP Book Series, Cambridge University Press, Cambridge, U.K., 1999, p. 140-189.
98. Moore, T.R., de Souza, W., and Koprivnjak, J.-F., Controls on the sorption of dissolved organic carbon by soils, Soil Sci., 154: 120-129, 1992.
99. Nadelhoffer, K.J. et al., Nitrogen deposition makes a minor contribution to carbon sequestration in temperate forests, Nature, 398: 145-148, 1999.
100. Nadelhoffer, K.J. et al., Effects of temperature and substrate quality on element mineralization in six arctic soils, Ecology, 72: 242-253, 1991.
101. Neff, J.C., Hobbie, S.E., and Vitousek, P.M., Nutrient and mineralogical control on dissolved organic C, N and P fluxes and stoichiometry in Hawaiian soils, Biogeochemistry, 51: 283-302, 2000.
102. Niklinska, M., Maryanski, M., and Laskowski, R., Effect of temperature on humus respiration rate and nitrogen mineralization: implications for global climate change, Biogeochemistry, 44: 239-257, 1999.
103. Nohrstedt, H.-O., Arnebrant, K., and Baath, E., Changes in carbon content, respiration, ATP content, and microbial biomass in nitrogen-fertilized pine forest soil in Sweden, Can. J. For. Res., 19: 323-328, 1989.
104. Oades, J.M., The retention of organic matter in soils, Biogeochemistry, 5: 33-70, 1988.
105. Olson, J.S., Energy storage and the balance of producers and decomposers in ecological systems, Ecology, 44: 322-331, 1963.
106. Paul, E.A. and Clark, F.E., Soil Microbiology and Biochemistry, Academic Press, San Diego, CA, 1996.
107. Perez-Harguindeguy, N. et al., Chemistry and toughness predict leaf litter decomposition rates over a wide spectrum of functional types and taxa in central Argentina, Plant Soil, 218: 30, 2000.
108. Peterjohn, W.T. et al., Soil warming and trace gas fluxes: experimental design and preliminary flux results, Oecologia, 93: 18-24, 1993.
109. Piatek, K.B. and Allen, H.L., Site preparation effects on foliar N and P use, retranslocation, and transfer to litter in 15-year-old Pinus taeda, For. Ecol. Manage., 129: 143-152, 2000.
110. Piatek, K.B. and Allen, H.L., Are forest floors in mid-rotation stands of loblolly pine (Pinus taeda) a sink for nitrogen and phosphorus? Can. J. For. Res., 31: 1164—1174, 2001.
111. Prescott, C.E., Does nitrogen availability control rates of litter decomposition in forests? Plant Soil, 168-169: 83-88, 1995.
112. Prescott, C.E., Blevins, L.L., and Staley, C.L., Effects of clearcutting on decomposition rates of litter and humus in forests of British Columbia, Can. J. For. Res., 30: 1751-1757, 2000.
113. Prescott, C.E., Corbin, J.P., and Parkinson, D., Immobilization and availability of N and P in the forest floors of fertilized Rocky Mountain coniferous forests, Plant Soil, 143: 1-10, 1992.
114. Prescott, C.E. et al., Decomposition of broadleaf and needle litter in forests of British Columbia: influences of litter type, forest type and litter mixtures, Can. J. For. Res., 30: 1742-1750, 2001.
115. Preston C.M. et al.,13C nuclear magnetic resonance spectroscopy with cross-polarization and magic-angle spinning investigation of the proximate-analysis fractions used to assess litter quality in decomposition studies, Can. J. Bot., 75: 1601-1613, 1997.
116. Qualls, R.G. and Haines, B.L., Geochemistry of dissolved organic nutrients in water percolating through a forest ecosystem, Soil Sci. Soc. Am. J., 55: 1112-1123, 1991.
117. Qualls, R.G. and Haines, B.L., Biodegradability of dissolved organic matter in forest throughfall, soil solution, and stream water, Soil Sci. Soc. Am. J., 56: 578-586, 1992.
118. Qualls, R.G., Haines, B.L., and Swank, W.T., Fluxes of dissolved organic nutrients and humic substances in a deciduous forest, Ecology, 72: 254-266, 1991.
119. Reid, C.P.P., Nitrogen nutrition, photosynthesis and carbon allocation in ectomycorrhizal pine, Plant Soil, 71: 415-432, 1983.
120. Rustad, L.E. and Fernandez, I.J., Soil warming: consequences for litter decay in a spruce-fir forest ecosystem in Maine, Soil Sci. Soc. Am. J., 62: 1072-1081, 1998.
121. Rustad, L.E. et al., Effects of soil warming on carbon and nitrogen cycling, in Responses of Northern U.S. Forests to Environmental Change, Mickler, R.A., Birdsey, R.A., and Hom, J., Eds., Ecological Studies 139, Springer-Verlag, New York, 2000, p. 357-381.
122. Ryan, D.F., Huntington, T.G., and Martin, C.W., Redistribution of soil nitrogen, carbon, and organic matter by mechanical disturbance during whole-tree harvesting in northern hardwoods, For. Ecol. Manage., 49: 87-99, 1992.
123. Schindler, D.W. and Bayley, S.E., The biosphere as an increasing sink for atmospheric carbon: estimates from increased nitrogen deposition, Global Biogeochemical Cycles, 7: 717-733, 1993.
124. Schlesinger, W.H. and Andrews, J.A., Soil respiration and the global carbon cycle, Biogeochemistry, 48: 7-20, 2000.
125. Schlesinger, W.H. and Lichter, J., Limited carbon storage in soil and litter of experimental forest plots under increased atmospheric CO2, Nature, 411, 466-469, 2001.
126. Shaver, G.R. et al., Global warming and terrestrial ecosystems: a conceptual framework for analysis, BioScience, 50: 871-882, 2000.
127. Soderstrom, B., Baath, E., and Lundgren, B., Decrease in soil microbial activity and biomasses owing to nitrogen amendments, Can. J. Microbiol., 29: 1500-1506, 1983.
128. Soil Survey Staff, Soil Taxonomy, 2nd ed., USDA-NRCS, U.S. Government Printing Office, Washington, D.C., 1999.
129. Sollins, P. et al., The internal element cycles of an old-growth Douglas-fir ecosystem in western Oregon, Ecol. Monogr., 50: 261-285, 1980.
130. Spies, T.A., Franklin, J.F., and Thomas, T.B., Coarse woody debris in Douglas-fir forests of western Oregon and Washington, Ecology, 69: 1689-1702, 1988.
131. Spies, T.A. and Cline, S.P., Coarse Woody Debris in Forests and Plantations of Coastal Oregon, Gen. Tech. Rep. 229, USDA Forest Service, Pacific Northwest Forest and Range Experimental Station, Portland, OR, 1989.
132. Stanford, G., Nitrogen mineralization-water relations in soils, Soil Sci. Soc. Am. Proc., 38: 103-106, 1974.
133. Stevenson, F.J., Humus Chemistry: Genesis, Composition, Reactions, John Wiley & Sons, New York, 1994.
134. Stone, J.N. et al., Coarse woody debris decomposition documented over 65 years on southern Vancouver Island, Can. J. For. Res., 28: 788-793, 1998.
135. Sturtevant, B.R. et al., Coarse woody debris as a function of age, stand structure, and disturbance in boreal Newfoundland, Ecol. Appl., 7: 707-712, 1997.
136. Swift, M.J., Heal, O.W., and Anderson, J.M., Decomposition in Terrestrial Ecosystems, University of California Press, Berkeley, 1979.
137. Taylor, B.R., Parsons, W.F.J., and Parkinson, D., Decomposition of Populus tremuloides leaf litter accelerated by addition of Alnus crispa litter, Can. J. For. Res., 19: 674-679, 1989.
138. Tian G., Kang, B.T., and Brussaard, L., Biological effects of plant residues with contrasting chemical compositions under humid tropical conditions — decomposition and nutrient release, Soil Biol. Biochem., 24: 1051-1060, 1992.
139. Tinker, D.B. and Knight, D.H., Coarse woody debris following fires and logging in Wyoming lodgepole pine forests, Ecosystems, 3: 472-483, 2000.
140. Townsend, A.R. et al., Spatial and temporal patterns in terrestrial carbon storage due to deposition of fossil fuel nitrogen, Ecol. Appl., 6: 806-814, 1996.
141. Tritton, L.M., Dead Wood in the Northern Hardwood Forest Ecosystem, Ph.D. dissertation, Yale University, New Haven, CT, 1980.
142. Trumbore, S.E., Age of soil organic matter and soil respiration: radiocarbon constraints on belowground C dynamics, Ecol. Appl., 10: 399-411, 2000.
143. Tyrrell, L.E. and Crow, T.R., Dynamics of dead wood in old-growth hemlock-hardwood forests of northern Wisconsin and northern Michigan, Can. J. For. Res., 24: 1672-1683, 1994.
144. Vance, G.F. and David, M.B., Effect of acid treatment on dissolved organic carbon retention by a spodic horizon, Soil Sci. Soc. Am. J., 53: 1242-1247, 1989.
145. Van Veen, J.A. and Kuikman, P.J., Soil structural aspects of decomposition of organic matter by microorganisms, Biogeochemistry, 13: 213-233, 1990.
146. Van Vuuren, M.M.I., Berendse, F., and de Visser, W., Species and site differences in the decomposition of litters and roots from wet heathlands, Can. J. Bot., 71: 167-173, 1993.
147. Vesterdal, L., Influence of soil type on mass loss and nutrient release from decomposing foliage litter of beech and Norway spruce, Can. J. For. Res., 29: 95-105, 1999.
148. Vitousek, P.M., Beyond global warming: ecology and global change, Ecology, 75: 1861-1876, 1994.
149. Vitousek, P.M. et al., Litter decomposition on the Mauna Loa environmental matrix, Hawaii: patterns, mechanisms, and models, Ecology, 75: 418-429, 1994.
150. Vogt, K.A., Grier, C.C., and Vogt, D.J., Production, turnover, and nutrient dynamics of above- and belowground detritus of world forests, Adv. Ecol. Res., 15: 303-377, 1986.
151. Vose, J.M. and Swank, W.T., Site preparation to improve southern Appalachian pine-hardwood stands: aboveground biomass, forest floor mass, and nitrogen and carbon pools, Can. J. For. Res., 23: 2255-2262, 1993.
152. Winkler, J.P., Cherry, R.S., and Schlesinger, W.H., The Q10 relationship of microbial respiration in a temperate forest soil, Soil Biol. Biochem., 28: 1067-1072, 1996.
153. Witkamp, M., Decomposition of leaf litter in relation to environment, microflora, and microbial respiration, Ecology, 47: 194-201, 1996.
154. Wright, R.F. and Tietema, A., Ecosystem response to 9 years of nitrogen addition at Sogndal, Norway, For. Ecol. Manage., 71: 133-142, 1995.
155. Yanai, R.D. et al., Challenges of measuring forest floor organic matter dynamics: repeated measures from a chronosequence, For. Ecol. Manage., 138: 273-283, 2000.
156. Yanai, R.D., Currie, W.S., and Goodale, C.L., Soil carbon dynamics following harvest: an ecosystem paradigm reconsidered, Ecosystems, in press.
157. Yanai, R.D. et al., Accumulation and depletion of base cations in forest floors in the northeastern U.S., Ecology, 80: 2774-2787, 1999.
158. Zak, D.R. et al., Soil temperature, matric potential, and the kinetics of microbial respiration and nitrogen mineralization, Soil Sci. Soc. Am. J., 63: 575-584, 1999.
159. Zech, W., Guggenberger, G., and Schulten, H.-R., Budgets and chemistry of dissolved organic carbon in forest soils: effects of anthropogenic soil acidification, Sci. Total Environ., 152: 49-62, 1994.
160. Zech, W. and Kogel-Knabner, I., Patterns and regulation of organic matter transformation in soils: litter decomposition and humification, in Flux Control in Biological Systems, Schulze, E.-D., Ed., Academic Press, San Diego, CA, 1994, p. 303-334.