Early survival and height growth of douglas-fir and lodgepole pine seedling and variations in site factors following treatment of logging residues. Forest Service research paper
Logging residues were (1) broadcast burned, (2) piled and burned, (3) removed, or (4) left in place after clearcutting in a high elevation subalpine fir/lodgepole pine forest in north-central Washington. Survival, height growth, and nutrient content of foliage of planted Douglas-fir and lodgepole pine seedlings, and variations in soil factors (nutrients, temperature, moisture, and compaction) and air temperature were compared for the four treatments. Little height growth occurred the first year, and it was similar for all treatments, probably due to transplant shock. Height growth the second year increased the most in the burned treatments, and the least in the slash-left treatment. Levels of nutrients in foliage were similar for all treatments and above threshold-deficiency levels except for sulfur. Extractable soil nutrients increased with burn treatments but returned to levels in other treatments within 3 years, best performance of seedlings during the first 2 years was in burn treatments.
- Research Organization:
- Forest Service, Portland, OR (United States). Pacific Northwest Research Station
- OSTI ID:
- 6755120
- Report Number(s):
- PB-93-143261/XAB; FSRP-PNW-451
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
FIRS
REVEGETATION
PINES
ATMOSPHERIC CIRCULATION
BIOMASS
CLIMATE MODELS
FORESTRY
FORESTS
GROWTH
HEIGHT
MOISTURE
NUTRIENTS
PERFORMANCE
RESIDUES
SEASONAL VARIATIONS
SEEDLINGS
SOILS
TREES
US FOREST SERVICE
WASHINGTON
WATER
CONIFERS
DEVELOPED COUNTRIES
DIMENSIONS
ENERGY SOURCES
HYDROGEN COMPOUNDS
MATHEMATICAL MODELS
NATIONAL ORGANIZATIONS
NORTH AMERICA
OXYGEN COMPOUNDS
PINOPHYTA
PLANTS
RENEWABLE ENERGY SOURCES
US DOA
US ORGANIZATIONS
USA
VARIATIONS
090800* - Biomass Fuels- Production- (1990-)