Bedrock type significantly affects individual tree mortality for various conifers in the inland Northwest, U.S.A.
- 1 January 2004
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Forest Research
- Vol. 34 (1), 31-42
- https://doi.org/10.1139/x03-196
Abstract
Individual tree mortality models for western white pine (Pinus monticola Dougl. ex D. Don), Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), grand fir (Abies grandis (Dougl. ex D. Don) Lindl.), western redcedar (Thuja plicata Donn ex. D. Don), western hemlock (Tsuga heterophylla (Raf.) Sarg.), and western larch (Larix occidentalis Nutt.) were developed using data from permanent research plots located throughout the inland Northwest. The proposed linear logistic models included the following independent variables: diameter at breast height, basal area in larger trees, basal area per hectare, individual tree diameter increment, and a set of dummy variables for the six bedrock types, which were granite, basalt, metasedimentary, sedimentary, mixed – glacial till, and deep deposit. The results show that rock type significantly affects individual tree mortality for western white pine, Douglas-fir, and western redcedar, while grand fir, western hemlock, and western larch were not affected. Western white pine and Douglas-fir growing on meta sedimentary rocks exhibited greater mortality probabilities than on other rocks. Mortality probabilities for western hemlock were low across all rock types, including "nutrient-poor" rocks like metasedimentary types.Keywords
This publication has 10 references indexed in Scilit:
- The effect of habitat type and rock type on individual tree basal area growth response to nitrogen fertilizationCanadian Journal of Forest Research, 2000
- Modeling individual tree mortality for Austrian forest speciesForest Ecology and Management, 1998
- Root chemistry of Douglas-fir seedlings grown under different nitrogen and potassium regimesCanadian Journal of Forest Research, 1998
- Effects of intermediate silvicultural treatments on the distribution of within-stand growthCanadian Journal of Forest Research, 1994
- Nitrogen Fertilizer Response of Rocky Mountain Douglas-Fir by Geographic Area Across the Inland Northwest1Western Journal of Applied Forestry, 1991
- Response of Douglas-Fir to Infection byArmillaria ostoyaeAfter Thinning or Thinning Plus FertilizationPhytopathology®, 1991
- Foliar potassium status explains douglas fir response to nitrogen fertilization in the Inland Northwest, USAWater, Air, & Soil Pollution, 1990
- Individual-tree diameter growth models for quantifying within-stand response to nitrogen fertilizationCanadian Journal of Forest Research, 1990
- Effects of Nitrogen Fertilization on Growth of Grand Fir and Douglas-Fir Stands in Northern IdahoWestern Journal of Applied Forestry, 1989
- A tree survival model with application to species of the Great Lakes regionCanadian Journal of Forest Research, 1983