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Publication Title:   Effect of habitat and substrate quality on Douglas fir litter decomposition in western Oregon

Year:  1977     Status:  Published     Publication Type:  Journal Article

H. J. Andrews Publication Number:  524

Citation:  Fogel, Robert; Cromack, Kermit Jr. 1977. Effect of habitat and substrate quality on Douglas fir litter decomposition in western Oregon. Canadian Journal of Botany. 55(12): 1632-1640.

Online PDF:  http://andrewsforest.oregonstate.edu/pubs/pdf/pub524.pdf

Abstract:  FOGEL. R.. and K. CROMACK, JR. 1977. Effect of habitat and substrate quality on Douglas fir litterdecomposition in western Oregon. Can. J. But. 55: 1632-1640. Linear regression models were developed for Douglas fir needle, female cone, branch, and harkdecomposition in seven stands representing four mature vegetation types in western Oregon.Rate constants (k) for annual weight loss of needles ranged from 0.22 to 0.31 year- ', from 0.047 to0.083 year-' for cones, from 0.059 to 0.089 year' for branches, and from 0.005 to 0.040 year' forbark. The decomposition constant (k) of needles had a negative linear correlation (P < 0.01) withmaximum plant moisture stress and temperature growth index of the seven stands. In comparingsubstrate quality of needle and woody litter components, k was more closely correlated withlignin content than with C:N ratio.

Personnel and Keyword Links

Author Links
Fogel ,  Robert   D.
Cromack Jr. ,  Kermit  


Theme
Biological diversity
Decomposition
Douglas-fir forest
Forest ecosystems
Habitat diversity
Litter decomposition
Litterfall
Nutrients
Terrestrial decomposition

Place
Oregon
Western Oregon

Taxa
Pseudotsuga menziesii