Journal article
Evaluation of planting sites common to a southeast Alaska clear- cut. I. Nutrient status
Canadian Journal of Forest Research, Vol.13(1), pp.1-8
1983
Abstract
Nutrient status was evaluated in the upper 15 cm of three microsite types (rotten wood, exposed mineral soil, and undisturbed duff) common in old-growth western hemlock-Sitka spruce (Tsuga heterophylla-Picea sitchensis) clear-cuts. Rotten wood had significantly wider C:N ratio (>100:1) than either undisturbed duff (36:1) or exposed mineral soil (31:1), indicating lower N availability in rotten wood. Higher levels of inorganic N in <2 mm fraction of rotten wood compared with the 2 to 9.4 mm fraction indicate that N availability increases as decay advances. Available P was low and could be a major factor limiting growth in all microsites. Exchangeable Mg was relatively low (0.0025 mg/cm3) in exposed mineral soil. Microsite nutrient expression on a volumetric rather than a gravimetric basis better represents availability of nutrients to planted seedlings.-Author
Details
- Title
- Evaluation of planting sites common to a southeast Alaska clear- cut. I. Nutrient status
- Authors
- Roy C Sidle (Author)C G Shaw Iii (Author)
- Publication details
- Canadian Journal of Forest Research, Vol.13(1), pp.1-8
- Publisher
- N R C Research Press
- Date published
- 1983
- DOI
- 10.1139/x83-001
- ISSN
- 0045-5067
- Organisation Unit
- University of the Sunshine Coast, Queensland; Sustainability Research Cluster
- Language
- English
- Record Identifier
- 99449490802621
- Output Type
- Journal article
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