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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

Interrelationships among northern flying squirrels, truffles, and microhabitat structure in Sierra Nevada old-growth habitat

Creator:: Pyare, Sanjay and Longland, William S.
Abstract:: During 1997–1998, we investigated the influence of both the relative abundance of truffles, preferred food items, and microhabitat structure on the occurrence of northern flying squirrels (Glaucomys sabrinus Shaw) in oldgrowth forest habitat of the Sierra Nevada Range, U.S.A. Following live-trapping sessions, we searched the forest floor for truffle diggings...
Resource Type:: Article
Full Text:: , truffles, and microhabitat structure in Sierra Nevada old-growth habitat Sanjay Pyare and William S

Interrelationships among northern flying squirrels, truffles, and microhabitat structure in Sierra Nevada old-growth habitat

Creator:: Pyare, Sanjay and Longland, William S.
Abstract:: During 1997–1998, we investigated the influence of both the relative abundance of truffles, preferred food items, and microhabitat structure on the occurrence of northern flying squirrels (Glaucomys sabrinus Shaw) in old-growth forest habitat of the Sierra Nevada Range, U.S.A. Following live-trapping sessions, we searched the forest floor for truffle diggings...
Resource Type:: Article
Full Text:: , truffles, and microhabitat structure in Sierra Nevada old-growth habitat Sanjay Pyare and William S

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

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:: . Maguire, and William W. Oliver Abstract:We analyzed 45 years of data collected from three ponderosa pine

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

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...
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Full Text:: provenance test series Mark R. Lesser, Marilyn Cherry, and William H. Parker Abstract: Previous laboratory

Salmonberry and salal annual aerial stem production: the maintenance of shrub cover in forest stands

Creator:: Tappeiner, John C., Zasada, John C., Huffman, David W. (William), 1962-, and Ganio, Lisa M.
Abstract:: Annual sprouting of aerial stems and ramets enables populations of salmonberry (Rubus spectabilis Pursh), salal (Gaultheria shallon Pursh), and probably other forest shrubs to maintain dense covers (>20 000 stems/ha). We studied annual stem production of salmonberry on cut (all stems cut within 15 cm of the ground) and uncut...
Resource Type:: Article
Full Text:: , respectively (Fig. 1). There was a significant interaction between stand type and cutting treatments (F = 10.39

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:: , J.F., Cromack, K., Jr., Denison, W., McKee, A., Maser, C., Sedell, J., Swanson, F., and Juday, G. 1981

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:: Forest Type P e rc e n ta g e o f S tu d y A re a Fig. 2. Stand age distribution for the study

ScholarsArchive@OSU

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

Interrelationships among northern flying squirrels, truffles, and microhabitat structure in Sierra Nevada old-growth habitat

Interrelationships among northern flying squirrels, truffles, and microhabitat structure in Sierra Nevada old-growth habitat

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

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

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

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

Salmonberry and salal annual aerial stem production: the maintenance of shrub cover in forest stands

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

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

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