Abstract/Details

Perte de masse anhydre et dynamique des elements chimiques du bois rameal fragmente de tremble

Pettigrew, Denis.  Universite Laval (Canada). ProQuest Dissertations Publishing, 1998. MQ31776.

Abstract (summary)

Fresh ramial wood chips from aspen (Populus tremuloides Michx.) were applied to the forest floor surface of a recently clear-cut site for a 2-year study of decomposition. Chips enclosed in mesh bags were installed on control and amended treatments (300 or 600 m$\sp3$ ha$\sp{-1}),$ and weight loss and changes in carbon fractions and macro-nutrients were measured during about 2 years. During this period, the substrate lost 38% of its initial mass, was an important source of bases cations, and became a sink for nitrogen (N) and phosphorus. Substrate N dynamics were dominated by immobilization during this 2-year field incubation, however net N release was initiated earlier in the amended treatments than in the control treatments. While the application of ramial chipped wood at the forest floor surface may greatly contribute to the resilience of the ecosystem following harvest, the labor and cost requirements of branch transformation remain a major limitation to such amendment.

Indexing (details)


Subject
Biogeochemistry;
Forestry
Classification
0425: Biogeochemistry
0478: Forestry
Identifier / keyword
Earth sciences; Biological sciences; Populus tremuloides
Title
Perte de masse anhydre et dynamique des elements chimiques du bois rameal fragmente de tremble
Author
Pettigrew, Denis
Number of pages
110
Degree date
1998
School code
0726
Source
MAI 37/02M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
978-0-612-31776-5
Advisor
Camire, Claude; Munson, Alison
University/institution
Universite Laval (Canada)
University location
Canada
Degree
M.Sc.
Source type
Dissertation or Thesis
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
MQ31776
ProQuest document ID
304474185
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
https://www.proquest.com/docview/304474185/abstract