Index Catalog // ScholarsArchive@OSU

Investigation of limestone ecotypes of white spruce based on a provenance test series

Creator:: Lesser, Mark R., Cherry, Marilyn, and Parker, William H.
Abstract:: Previous laboratory and field studies have presented evidence for the existence of limestone ecotypes in white spruce (Picea glauca (Moench) Voss). Remeasurements of the range-wide 410 series of provenance trials were used for further evaluation of the existence of these ecotypes. In 2001, heights were measured of 23 provenances grown...
Resource Type:: Article
Full Text:: provenance test series Mark R. Lesser, Marilyn Cherry, and William H. Parker Abstract: Previous laboratory

Douglas-fir soil C and N properties a decade after termination of urea fertilization

Creator:: Homann, Peter S., Caldwell, Bruce A., Chappell, H. N., Sollins, Phillip, and Swanston, Chris W.
Abstract:: Chemical and microbial soil properties were assessed in paired unfertilized and urea fertilized (>89 g N·m–2) plots in 13 second-growth Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands distributed throughout western Washington and Oregon. A decade following the termination of fertilization, fertilized plots averaged 28% higher total N in the O layer...
Resource Type:: Article
Full Text:: -nitrophenylphosphate in acetate buffer at 30°C. After 1 h, the reaction was terminated by adding 0.5 mL 0.5 M CaCl2 and

Effects of megagametophyte removal on DNA yield and early seedling growth in coastal Douglas-fir

Creator:: Krutovskii, K. V., Vollmer, S. S., Sorensen, F. C., Adams, W. T., and Strauss, S. H.
Abstract:: Stratified seeds of coastal Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii) were germinated, sown in soil, and seed coats and megagametophytes were removed at various stages of early seedling development. Yield and quality of DNA extracted from the megagametophytes were related to several morphological traits of the seedlings after 2...
Resource Type:: Article
Full Text:: . Based on the appearance of the DNA when run (undi- gested with restriction enzymes) for 3–4 h on a 0.8

Observations and assessment of forest carbon dynamics following disturbance in North America

Creator:: Goetz, S. J., Bond-Lamberty, B., Law, B. E., Hicke, J. A., Huang, C., Houghton, R. A., McNulty, S., O'Halloran, T., Harmon, M., Meddens, A. J. H., Pfeifer, E. M., Mildrexler, D., and Kasischke, E. S.
Abstract:: Disturbance processes of various types substantially modify ecosystem carbon dynamics both temporally and spatially, and constitute a fundamental part of larger landscape-level dynamics. Forests typically lose carbon for several years to several decades following severe disturbance, but our understanding of the duration and dynamics of post-disturbance forest carbon fluxes remains...
Resource Type:: Article
Full Text:: . McNulty,6 T. O’Halloran,7 M. Harmon,3 A. J. H. Meddens,8 E. M. Pfeifer,9 D. Mildrexler,10 and E. S

Developing a production possibility set of wildlife species persistence and timber harvest value

Creator:: Calkin, David E., Montgomery, Claire A., Schumaker, Nathan H., Polasky, Stephen, Arthur, Jeffrey L., and Nalle, Darek J.
Abstract:: An integrated model, combining spatial wildlife population and timber harvest and growth models, was developed to explore tradeoffs between the likelihood of persistence of a wildlife species, the northern flying squirrel (Glaucomys sabrinus), and timber production on a landscape on the west side of the Oregon Cascade Range. A simplified...
Resource Type:: Article
Full Text:: N P V ti m b e r h a rv e s t (m il li o n $ , 1 9 9 9 ) Fig. 5. Production possibility

Seasonal variation of photosynthetic model parameters and leaf area index from global Fluxnet eddy covariance data

Creator:: Groenendijk, M., Dolman, A. J., Ammann, C., Arneth, A., Cescatti, A., Dragoni, D., Gash, J. H. C., Gianelle, D., Gioli, B., Kiely, G., Knohl, A., Law, B. E., Lund, M., Marcolla, B., van der Molen, M. K., Montagnani, L., Moors, E., Richardson, A. D., Roupsard, O., Verbeeck, H., and Wohlfahrt, G.
Abstract:: Global vegetation models require the photosynthetic parameters, maximum carboxylation capacity (V[subscript cm]), and quantum yield (alpha) to parameterize their plant functional types (PFTs). The purpose of this work is to determine how much the scaling of the parameters from leaf to ecosystem level through a seasonally varying leaf area index...
Resource Type:: Article
Full Text:: model parameters and leaf area index from global Fluxnet eddy covariance data M. Groenendijk,1,2 A. J

Reduction in carbon uptake during turn of the century drought in western North America

Creator:: Schwalm, Christopher R., Williams, Christopher A., Schaefer, Kevin, Baldocchi, Dennis D., Black, T. Andrew, Goldstein, Allen H., Law, Beverly E., Oechel, Walter C., Paw U, Kyaw Tha, and Scott, Russel L.
Abstract:: Fossil fuel emissions aside, temperate North America is a net sink of carbon dioxide at present¹⁻³. Year-to-year variations in this carbon sink are linked to variations in hydroclimate that affect net ecosystem productivity³,⁴. The severity and incidence of climatic extremes, including drought, have increased as a result of climate warming⁵⁻⁸....
Resource Type:: Article
Full Text:: NEP (g C m¬2 yr¬1) GPP (g C m¬2 yr¬1) Ecosystem respiration (g C m¬2 yr¬1) LEF (W m¬2) H (W m

Modeling of metal-plate-connected wood truss joints

Creator:: Vatovec, M., Miller, T. H., and Gupta, R.
Abstract:: A commercially available, three-dimensional finite-element analysis software was used to model the load-displacement behavior of metal-plate-connected (MPC) joints in wooden trusses. Model features included consideration of material properties, teeth-to-grain-to-direction-of-force orientation, wood-to-wood interaction, and gaps between wood members. To simulate wood-to-plate interaction, the main feature of the model, each tooth of...
Resource Type:: Article
Full Text:: OF METAL-PLATE-CONNECTED WOOD TRUSS JOINTS M. Vatovec, T. H. Miller, R. Gupta ABSTRACT. A

Green Revolution Trees: Semidwarfism Transgenes Modify Gibberellins, Promote Root Growth, Enhance Morphological Diversity, and Reduce Competitiveness in Hybrid Poplar

Creator:: Elias, Ani A., Busov, Victor B., Kosola, Kevin R., Ma, Cathleen, Etherington, Elizabeth, Shevchenko, Olga, Gandhi, Harish, Pearce, David W., Rood, Stewart B., and Strauss, Steven H.
Abstract:: Semidwarfism has been used extensively in row crops and horticulture to promote yield, reduce lodging, and improve harvest index, and it might have similar benefits for trees for short-rotation forestry or energy plantations, reclamation, phytoremediation, or other applications. We studied the effects of the dominant semidwarfism transgenes GA Insensitive (GAI)...
Resource Type:: Article
Full Text:: , Elizabeth Etherington, Olga Shevchenko, Harish Gandhi, David W. Pearce, Stewart B. Rood, and Steven H

Applying the dual-isotope conceptual model to interpret physiological trends under uncontrolled conditions

Creator:: Barnard, H. R., Brooks, J. R., and Bond, B. J.
Abstract:: The inter-relationships among δ¹³C and δ¹⁸O in tree ring cellulose and ring width have the potential to illuminate long-term physiological and environmental information in forest stands that have not been monitored. We examine how within-stand competition and environmental gradients affect ring widths and the stable isotopes of cellulose. We utilize...
Resource Type:: Article
Full Text:: International, LLC, Batavia, IL, USA) and sealed to prevent evaporation. Water was extracted for 4 h from the

ScholarsArchive@OSU

Investigation of limestone ecotypes of white spruce based on a provenance test series

Douglas-fir soil C and N properties a decade after termination of urea fertilization

Effects of megagametophyte removal on DNA yield and early seedling growth in coastal Douglas-fir

Observations and assessment of forest carbon dynamics following disturbance in North America

Developing a production possibility set of wildlife species persistence and timber harvest value

Seasonal variation of photosynthetic model parameters and leaf area index from global Fluxnet eddy covariance data

Reduction in carbon uptake during turn of the century drought in western North America

Modeling of metal-plate-connected wood truss joints

Green Revolution Trees: Semidwarfism Transgenes Modify Gibberellins, Promote Root Growth, Enhance Morphological Diversity, and Reduce Competitiveness in Hybrid Poplar

Applying the dual-isotope conceptual model to interpret physiological trends under uncontrolled conditions

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