Author: Marshall D. MurrayPublisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 20
Book Description
Early Survival and Growth of Planted Douglas-fir with Red Alder in Four Mixed Regimes
Author: Marshall D. MurrayPublisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 20
Book Description
Research Paper PNW.
Author: Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 690
Book Description
Alabama's Forest Products Industry
Author: Publisher:
ISBN:
Category : Forest products industry
Languages : en
Pages : 690
Book Description
Autecology of Common Plants in British Columbia
Author: Sybille HaeusslerPublisher: Forestry Canada, 1990 [i.e. 1991]
ISBN:
Category : Forest ecology
Languages : en
Pages : 294
Book Description
This publication summarizes the autecological characteristics of 35 vegetation species and provides information on how they respond to various silvicultural treatments now in use on forest lands. Information used in this report was gathered in an extensive search of ecological, silvicultural, and botanical literature, most of which originates in western Canada or western US. Information is given on description, distribution and abundance, habitat, growth and development, reproduction, pests, effects on crop trees, response to disturbance or management, and wildlife and range of each species, listed alphabetically by scientific name.
Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 744
Book Description
Monthly Catalogue, United States Public Documents
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1260
Book Description
Comparative Effects of Urea Fertilizer and Red Alder in a Site III, Coast Douglas-fir Plantation in the Washington Cascade Range
Author: Publisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 36
Book Description
Five randomly assigned treatments were used to quantify effects of adding varying numbers of red alder (Alnus rubra Bong.) or nitrogen (N) fertilization on growth of a 10-year-old conifer plantation at a medium quality site in the western Washington Cascade Range. Zero, 20, 40, and 80 alder trees per acre were retained along with about 300 conifers per acre. Nearly all conifers were coast Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco). A fifth treatment substituted N fertilizer for N-fixing alder. Changes in average tree height, and in numbers of trees, basal area, and volume per acre between plantation ages of 10 and 27 are compared. In pure conifer plots, gross volume growth averaged 26 percent greater on fertilized than nonfertilized plots, indicating measurable benefits of additional N. On both fertilized and nonfertilized plots, an average of 13 percent of the original conifers died. Retaining 20, 40, or 80 alder per acre (7, 13, and 27 percent of the associated conifer trees per acre, respectively) was associated with reduced numbers of Douglas-fir by about 19, 5, and 17 percent, respectively, in the next 17 years. Mortality and growth of Douglas-fir were not related to alder density, but losses of Douglas-fir were especially large on plots where relatively large red alder (20 per acre) were retained. Neither total stand nor conifer yields were changed by retaining alder. Additional comparisons are needed at other locations, especially those with known N deficiency.
Forest Research Information Paper
Author: Ontario. Division of ForestsPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 520
Book Description
Comparative Effects of Precommercial Thinning, Urea Fertilizer, and Red Alder in a Site II, Coast Douglas-fir Plantation
Author: Richard E. MillerPublisher:
ISBN:
Category : Douglas fir
Languages : en
Pages : 32
Book Description
A Bibliography on Competition, Tree Seedling Characteristics, and Related Topics
Author: Eileen M. Forestell HarveyPublisher: [Sault Ste. Marie] : Ontario, Ministry of National Resources
ISBN:
Category : Competition (Biology)
Languages : en
Pages : 130
Book Description