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The effect of local stand structure on growth and growth efficiency in heterogeneous stands of ponderosa pine and lodgepole pine in central Oregon

Creator:: Mainwaring, Douglas B. and Maguire, Douglas A. (Douglas Alan)
Abstract:: Basal area and height growth were analyzed for individual trees in uneven-aged ponderosa pine (Pinus ponderosa Dougl. ex Laws.) and lodgepole pine (Pinus contorta Dougl. ex. Loud.) stands in central Oregon. Basal area growth was modeled as a function of other stand and tree variables to address three general objectives:...
Resource Type:: Article
Full Text:: NRC Canada Mainwaring and Maguire 2219 P on de ro sa pi ne L od ge po le pi ne P lo t M ea

Forest soil characteristics in a chronosequence of harvested Douglas-fir forests

Creator:: Griffiths, Robert P. and Swanson, Alan K.
Abstract:: This study was designed to measure the microbiological and chemical characteristics of forest soils in a chronosequence of harvested Douglas-fir (Pseusotsuga menziesii (Mirb.) Franco) stands in different climatic settings. Mineral soil samples were collected along transects running from old-growth (OG) forests into harvested stands of ages 5, 15, and 40...
Resource Type:: Article
Full Text:: harvested Douglas-fir forests1 Robert P. Griffiths and Alan K. Swanson Abstract: This study was designed

Ten-year growth and mortality in young Douglas-fir stands experiencing a range in Swiss needle cast severity

Creator:: Maguire, Douglas A., Mainwaring, Douglas B., and Kanaskie, Alan
Abstract:: Swiss needle cast, a foliar disease caused by the Ascomycete Phaeocryptopus gaeumannii (T. Rohde) Petr., continues to afflict Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) in north coastal Oregon. Permanent plots were installed in 1998 to assess growth impacts and monitor disease severity. Gross periodic annual increment was measured for three 2-year...
Resource Type:: Article
Full Text:: 97331 USA 15 16 Alan Kanaskie 17 Oregon Department of Forestry 18 2600 State Street 19 Salem

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:: ; βt = β0 + β2T2 + β3T3 + β4T4 + β5T5 + β6T6 where βt is the rate parameter for specific treatments

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:: . Schwalm,2 Chris Williams,3 M. Altaf Arain,4 Alan Barr,5 Jing M. Chen,6 Kenneth J. Davis,7 Dimitre

Remote sensing of transpiration and heat fluxes using multi-angle observations

Creator:: Hilker, Thomas, Hall, Forrest G., Coops, Nicholas C., Collatz, James G., Black, T. Andrew, Tucker, Compton J., Sellers, Piers J., and Grant, Nicholas
Abstract:: Surface energy balance is a major determinant of land surface temperature and the Earth's climate. To date, there is no approach that can produce effective, physically consistent, global and multi-decadal energy–water flux data over land. Net radiation (R[subscript n]) can be quantified regionally using satellite retrievals of surface reflectance and...
Resource Type:: Article
Full Text:: b, Nicholas C. Coops c, James G. Collatz b, T. Andrew Black d, Compton J. Tucker b, Piers J. Sellers

Wood density of Eucalyptus saligna grown in Hawaiian plantations: effects of silvicultural practices and relation to growth rate

Creator:: DeBell, Dean S., Keyes, Christopher R., and Gartner, Barbara L.
Abstract:: We evaluated effects of chemical fertilizer, spacing, and interplanted nitrogen-fixing trees on wood density and diameter growth of 15-year-old Eucalyptus saligna trees. The trees were grown in silvicultural trials established on former sugarcane land on the island of Hawaii. Elevation was 480 m, slopes were gentle, and annual rainfall averaged...
Resource Type:: Article
Full Text:: trees, a preliminary comparison using a t-test was made between two treatments that were essentially

Evaluation of sampling methods to quantify abundance of hardwoods and snags within conifer-dominated riparian zones

Creator:: Marquardt, Theresa, Temesgen, Hailemariam, Anderson, Paul D., and Eskelson, Bianca
Abstract:: • Aims: Six sampling alternatives were examined for their ability to quantify selected attributes of snags and hardwoods in conifer-dominated riparian areas of managed headwater forests in western Oregon. • Methods: Each alternative was simulated 500 times at eight headwater forest locations based on a 0.52-ha square stem map. The...
Resource Type:: Article
Full Text:: , with the exception of red Handling Editor: Barry Alan Gardiner Contribution of co-authors Theresa

Fire exclusion effects on riparian forest dynamics in southwestern Oregon

Creator:: Messier, Michael S., Shatford, Jeff P.A., and Hibbs, David E.
Abstract:: Euro-American settlement and organized fire suppression have been associated with structural and compositional changes in many upland forests of the western United States, but little is known about the impacts on riparian forests, portions of the landscape protected for habitat and water quality. In this study, we used dendro-ecological methods...
Resource Type:: Article
Full Text:: collection. They also wish to thank Harold Zald, Steve Voelker, Alan Tepley, Paul 509 Satterthwaite, Nick

ScholarsArchive@OSU

The effect of local stand structure on growth and growth efficiency in heterogeneous stands of ponderosa pine and lodgepole pine in central Oregon

Forest soil characteristics in a chronosequence of harvested Douglas-fir forests

Ten-year growth and mortality in young Douglas-fir stands experiencing a range in Swiss needle cast severity

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

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

Remote sensing of transpiration and heat fluxes using multi-angle observations

Wood density of Eucalyptus saligna grown in Hawaiian plantations: effects of silvicultural practices and relation to growth rate

Evaluation of sampling methods to quantify abundance of hardwoods and snags within conifer-dominated riparian zones

Fire exclusion effects on riparian forest dynamics in southwestern Oregon

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