Search Results - "TODD, DONALD E."

Flux of carbon from 14C-enriched leaf litter throughout a forest soil mesocosm by Fröberg, Mats, Hanson, Paul J., Trumbore, Susan E., Swanston, Christopher W., Todd, Donald E.

“…The role of DOC for the build-up of soil organic carbon pools is still not well known, but it is thought to play a role in the transport of carbon to a greater…”
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Revisiting Soil Carbon and Nitrogen Sampling: Quantitative Pits Versus Rotary Cores by Rau, Benjamin M, Melvin, April M, Johnson, Dale W, Goodale, Christine L, Blank, Robert R, Fredriksen, Guinevere, Miller, Watkins W, Murphy, James D, Todd, Donald E. Jr, Walker, Roger F

“…Increasing atmospheric carbon dioxide and its feedbacks with global climate have sparked renewed interest in quantifying ecosystem carbon (C) budgets,…”
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Long-term successional forest dynamics: species and community responses to climatic variability by Kardol, Paul, Todd, Donald E., Hanson, Paul J., Mulholland, Patrick J.

“…Question: Are trees sensitive to climatic variability, and do tree species differ in their responses to climatic variability? Does sensitivity of forest…”
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The combined effects of thinning and prescribed fire on carbon and nutrient budgets in a Jeffrey pine forest by Johnson, Dale W., Murphy, James D., Walker, Roger F., Miller, Watkins W., Glass, D. W., Todd, Donald E.

“…• Both burning and harvesting cause carbon and nutrient removals from forest ecosystems, but few studies have addressed the combination of these effects. For a…”
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Evaluation of effects of sustained decadal precipitation manipulations on soil carbon stocks by Fröberg, Mats, Hanson, Paul J, Todd, Donald E, Johnson, Dale W

“…Throughout a 13 year period, the Throughfall Displacement Experiment sustained both increased (+33; wet) and decreased (-33%; dry) throughfall into an upland…”
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Phenotypic variation and quantitative trait locus identification for osmotic potential in an interspecific hybrid inbred F2 poplar pedigree grown in contrasting environments by Tschaplinski, Timothy J, Tuskan, Gerald A, Sewell, Mitchell M, Gebre, G Michael, Todd, Donald E, Pendley, Carrie D

“…Elucidation of the mechanisms of dehydration tolerance in poplar (Populus sp.) trees will permit development of biochemical and molecular indicators to…”
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A method for experimental heating of intact soil profiles for application to climate change experiments by HANSON, PAUL J., CHILDS, KENNETH W., WULLSCHLEGER, STAN D., RIGGS, JEFFERY S., THOMAS, WARREN K., TODD, DONALD E., WARREN, JEFFREY M.

“…A new system for simulating future belowground temperature increases was conceived, simulated, constructed and tested in a temperate deciduous forest in Oak…”
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Flux of carbon from C-enriched leaf litter throughout a forest soil mesocosm by Froberg, Mats, Hanson, Paul J, Trumbore, Susan E, Swanston, Christopher W, Todd, Donald E

“…The role of DOC for the build-up of soil organic carbon pools is still not well known, but it is thought to play a role in the transport of carbon to a greater…”
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Allometric Determination of Tree Growth in a CO2-Enriched Sweetgum Stand by Norby, Richard J., Todd, Donald E., Fults, Jason, Johnson, Dale W.

“…• In a free-air CO2 enrichment (FACE) study, above-ground growth of Liquidambar styraciflua (sweetgum) trees was measured in a closed-canopy stand to test…”
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Drought resistance of two hybrid Populus clones grown in a large-scale plantation by Tschaplinski, T.J, Tuskan, G.A, Gebre, G.M, Todd, D.E

“…Poplar hybrids were grown with irrigation in a large-scale plantation to investigate the mechanisms underlying clonal differences in drought resistance…”
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Clonal and seasonal differences in leaf osmotic potential and organic solutes of five hybrid poplar clones grown under field conditions by Gebre, G.M, Tschaplinski, T.J, Tuskan, G.A, Todd, D.E

“…Leaf osmotic potential at full turgor (leaf osmotic potential) and the major solutes that contribute to osmotic potential were characterized in five hybrid…”
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Low Dissolved Organic Carbon Input from Fresh Litter to Deep Mineral Soils by Fröberg, M., Jardine, P. M., Hanson, P. J., Swanston, C. W., Todd, D. E., Tarver, J. R., Garten, C. T.

“…Dissolved organic carbon (DOC) leached from recent litter in the forest floor has been suggested to be an important source of C to the mineral soil of forest…”
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Decadal Changes in Potassium, Calcium, and Magnesium in a Deciduous Forest Soil by Johnson, D.W, Todd, D.E. Jr, Trettin, C.F, Mulholland, P.J

“…Decadal changes in soil exchangeable K+, Ca2+, and Mg2+ concentrations and contents from 1972 to 2004 in eight intensively monitored plots on Walker Branch…”
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Effects of throughfall manipulation on soil nutrient status: results of 12 years of sustained wet and dry treatments by JOHNSON, D.W, TODD, D.E. JR, HANSON, P.J

“…To investigate the potential effects of changing precipitation on forest ecosystems, the Throughfall Displacement Experiment (TDE) was established on Walker…”
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A new method for the experimental heating of intact soil profiles for application to climate change experiments by Hanson, Paul J, Childs, Kenneth W, Wullschleger, Stan D, Riggs, Jeffery S, Thomas, Warren Kyle, Todd Jr, Donald E, Warren, Jeffrey

“…Advanced facilities are needed to evaluate the response of complex ecosystems to projected unique climate conditions not observable in the context of current…”
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Allometric determination of tree growth in a CO 2 ‐enriched sweetgum stand by Norby, Richard J., Todd, Donald E., Fults, Jason, Johnson, Dale W.

“…In a free‐air CO 2 enrichment (FACE) study, above‐ground growth of Liquidambar styraciflua (sweetgum) trees was measured in a closed‐canopy stand to test…”
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Measuring stem water content in four deciduous hardwoods with a time-domain reflectometer by Wullschleger, S.D, Hanson, P.J, Todd, D.E

“…New technologies in time-domain reflectometry offer a reliable means of measuring soil water content. Whether these same technologies can be used or adapted to…”
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Changes in Soil Carbon and Nitrogen in Forests of Walker Branch Watershed 1972-2004 by Todd Jr, Donald E, Johnson, Dale W., Trettin, Carl

“…Changes in soil C and N concentrations and contents in four samplings during a 32-yr period on Walker Branch watershed in Tennessee were determined and…”
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Allometric determination of tree growth in a CO2-enriched sweetgum stand: Rising CO2 - future ecosystems by NORBY, Richard J, TODD, Donald E, FULTS, Jason, JOHNSON, Dale W

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Changes in Ecosystem Carbon and Nitrogen in a Loblolly Pine Plantation over the First 18 Years by Johnson, D. W., Todd, D. E., Tolbert, V. R.

“…Eighteen years after the establishment of a loblolly pine (Pinus taeda L.) plantation, ecosystem C content had approximately tripled (from 54 to 161 Mg C ha−1)…”
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