Index Catalog // ScholarsArchive@OSU

Influence of forest age on forms of carbon in Douglas-fir soils in the Oregon Coast Range

Creator:: Entry, James A. and Emmingham, William H.
Abstract:: The amount and type of carbon (C) in a forest soil reflects the past balance between C accumulation and loss. In an old-growth forest soil, C is thought to be in dynamic equilibrium between accumulations and losses. Disturbance upsets this equilibrium by altering the microclimate, the amount and type of...
Resource Type:: Article
Full Text:: carbon in Douglas-fir soils in the Oregon Coast Range James A. Entry and William H. Emmingham Abstract

Harvesting timber to achieve reforestation objectives

Creator:: Jarmer, Christopher B., Mann, John W., and Atkinson, William A.
Resource Type:: Part of Book
Full Text:: Christopher B. Jarmer John W. Mann William A. Atkinson Introduction 203 A Review of Harvesting Systems 204

Thinning ponderosa pine (Pinus ponderosa) stands reduces mortality while maintaining stand productivity

Creator:: Zhang, Jianwei, Ritchie, Martin W., Maguire, Douglas A., and Oliver, William W.
Abstract:: We analyzed 45 years of data collected from three ponderosa pine (Pinus ponderosa Douglas ex P. Lawson & C. Lawson) levels-of-growing-stock installations in Oregon (OR) and northern California (CA), USA, to determine the effect of stand density regimes on stand productivity and mortality. We found that periodic annual increment (PAI)...
Resource Type:: Article
Full Text:: reduces mortality while maintaining stand productivity Jianwei Zhang, Martin W. Ritchie, Douglas A

Effects of stand density on the growth of young Douglas-fir trees

Creator:: Woodruff, David R., Bond, Barbara J., Ritchie, Gary A., and Scott, William
Abstract:: The objectives of this study were (i) to provide further evidence of a positive correlation of stand density with early growth of coastal Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii); (ii) to determine when after planting the positive growth response occurs and how long it lasts; and (iii) to use...
Resource Type:: Article
Full Text:: Douglas-fir trees David R. Woodruff, Barbara J. Bond, Gary A. Ritchie, and William Scott Abstract: The

Density, ages, and growth rates in old-growth and young-growth forests in coastal Oregon

Creator:: Tappeiner, John C., Huffman, David W. (William), 1962-, Marshall, David, Spies, Thomas A., and Bailey, John D.
Abstract:: We studied the ages and diameter growth rates of trees in former Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) old-growth stands on 10 sites and compared them with young-growth stands (50-70 years old, regenerated after timber harvest) in the Coast Range of western Oregon. The diameters and diameter growth rates for the...
Resource Type:: Article
Full Text:: in coastal Oregon1 John C. Tappeiner, David Huffman, David Marshall, Thomas A. Spies, and John D

Predicting growth response of shrubs to clear-cutting and site preparation in coastal Oregon forests

Creator:: Knowe, Steven A. (Steven Alan), 1954-, Stein, William I., and Shainsky, L. J.
Abstract:: Cover-projection models were developed based on algebraic difference formulations of an exponential-power function to describe shrub recovery and development patterns after clear-cutting and site preparation. We tested the effect of six treatments on shrub growth patterns by incorporating indicator variables into the rate and shape parameters of the models for...
Resource Type:: Article
Full Text:: preparation in coastal Oregon forests1 Steven A. Knowe, William I. Stein, and L.J. Shainsky Abstract: Cover

Evaluating theories of drought-induced vegetation mortality using a multimodel– experiment framework

Creator:: McDowell, Nate G., Gehres, Nathan, Limousin, Jean Marc, Macalady, Alison, Martínez-Vilalta, Jordi, Mencuccini, Maurizio, Plaut, Jennifer A., Ogée, Jérôme, Robert E., Pangle, Rasse, Daniel P., Ryan, Michael G., Fisher, Rosie A., Sevanto, Sanna, Waring, Richard H., Williams, A. Park, Yepez, Enrico A., Pockman, William T., Xu, Chonggang, Domec, Jean-Christophe, Holtta, Teemu, Mackay, D. Scott, Sperry, John S., Boutz, Amanda, and Dickman, Lee
Abstract:: Model–data comparisons of plant physiological processes provide an understanding of mechanisms underlying vegetation responses to climate. We simulated the physiology of a pi~non pine–juniper woodland (Pinus edulis–Juniperus monosperma) that experienced mortality during a 5 yr precipitation-reduction experiment, allowing a framework with which to examine our knowledge of drought-induced tree mortality....
Resource Type:: Article
Full Text:: , Richard H.Waring18, A. ParkWilliams1, Enrico A. Yepez19 and William T. Pockman8 1Earth and Environmental

High diversity and widespread occurrence of mitotic spore mats in ectomycorrhizal Pezizales

Creator:: Healy, R. A., Smith, M. E., Bonito, G. M., Pfister, D. H., Ge, Z-W., Guevara, G. G., Williams, G., Stafford, K., Kumar, L., Lee, T., Hobart, C., Trappe, J., Vilgalys, R., and McLaughlin, D. J.
Abstract:: Fungal mitospores may function as dispersal units and/ or spermatia, and thus play a role in distribution and/or mating of species that produce them. Mitospore production in ectomycorrhizal (EcM) Pezizales is rarely reported, but here we document mitospore production by a high diversity of EcM Pezizales on three continents, in...
Resource Type:: Article
Full Text:: Manuscript ID: Draft Manuscript Type: Original Article Date Submitted by the Author: n/a Complete List

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:: North America Christopher R. Schwalm1*, Christopher A. Williams2, Kevin Schaefer3, Dennis Baldocchi4,5

A model-data comparison of gross primary productivity: Results from the North American Carbon Program site synthesis

Creator:: Schaefer, Kevin, Schwalm, Christopher R., Williams, Chris, Arain, M. Altaf, Barr, Alan, Chen, Jing M., Davis, Kenneth J., Dimitrov, Dimitre, Hilton, Timothy W., Hollinger, David Y., Humphreys, Elyn, Poulter, Benjamin, Raczka, Brett M., Richardson, Andrew D., Sahoo, Alok, Thornton, Peter, Vargas, Rodrigo, Verbeeck, Hans, Anderson, Ryan, Baker, Ian, Black, T. Andrew, Bolstad, Paul, Chen, Jiquan, Curtis, Peter S., Desai, Ankur R., Dietze, Michael, Dragoni, Danilo, Gough, Christopher, Grant, Robert F., Gu, Lianhong, Jain, Atul, Kucharik, Chris, Law, Beverly, Liu, Shuguang, Lokipitiya, Erandathie, Margolis, Hank A., Matamala, Roser, McCaughey, J. Harry, Monson, Russ, Munger, J. William, Oechel, Walter, Peng, Changhui, Price, David T., Ricciuto, Dan, Riley, William J., Roulet, Nigel, Tian, Hanqin, Tonitto, Christina, Torn, Margaret, Weng, Ensheng, and Zhou, Xiaolu
Abstract:: Accurately simulating gross primary productivity (GPP) in terrestrial ecosystem models is critical because errors in simulated GPP propagate through the model to introduce additional errors in simulated biomass and other fluxes. We evaluated simulated, daily average GPP from 26 models against estimated GPP at 39 eddy covariance flux tower sites...
Resource Type:: Article
Full Text:: A model-data comparison of gross primary productivity: Results

ScholarsArchive@OSU

Influence of forest age on forms of carbon in Douglas-fir soils in the Oregon Coast Range

Harvesting timber to achieve reforestation objectives

Thinning ponderosa pine (Pinus ponderosa) stands reduces mortality while maintaining stand productivity

Effects of stand density on the growth of young Douglas-fir trees

Density, ages, and growth rates in old-growth and young-growth forests in coastal Oregon

Predicting growth response of shrubs to clear-cutting and site preparation in coastal Oregon forests

Evaluating theories of drought-induced vegetation mortality using a multimodel– experiment framework

High diversity and widespread occurrence of mitotic spore mats in ectomycorrhizal Pezizales

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

A model-data comparison of gross primary productivity: Results from the North American Carbon Program site synthesis

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