Nutrient returns from field-drying of logging residue
Increasing interest in utilizing logging residue for fuel has caused concern over additional nutrient removals from the site. On-site drying of the residue may have an ameliorative effect due to nutrient returns during the drying process. To determine nutrient returns from field-dried logging residue, four red maple (Acer rubrum L.) and chestnut oak (Quercus prinus L.) trees were felled and skidded into a 2-ha clearcut area. Twig and leaf samples were collected immediately after cutting and after 2, 4, 8, and 16 weeks of field-drying. Declines in both P and K concentrations in the leaves and twigs were noted over the drying period. When nutrient returns were computed on a kg ha/sup -1/ basis the following returns were observed after 16 weeks of drying: N, P, K, Ca, and Mg were 37, 2, 34, 20, and 2 kg ha/sup -1/, respectively. These amounts are similar to those cycled annually in litter-fall in Appalachian mixed oak stands, which indicates that from a nutrient conservation standpoint, summer logging followed by field-drying may be comparable to winter (leaf-off) logging in these stands.
- Research Organization:
- Univ. of Wisconsin, Stevens Point
- OSTI ID:
- 5255948
- Journal Information:
- J. Environ. Qual.; (United States), Vol. 14:3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
09 BIOMASS FUELS
NUTRIENTS
LEACHING
MINERAL CYCLING
WOOD PRODUCTS INDUSTRY
WASTE PRODUCT UTILIZATION
CALCIUM
DRYING
ENVIRONMENTAL EFFECTS
EXPERIMENTAL DATA
MAGNESIUM
NITROGEN
PHOSPHORUS
POTASSIUM
RESIDUES
RESOURCE POTENTIAL
TREES
WOOD FUELS
ALKALI METALS
ALKALINE EARTH METALS
DATA
DISSOLUTION
ELEMENTS
ENERGY SOURCES
FUELS
INDUSTRY
INFORMATION
METALS
NONMETALS
NUMERICAL DATA
PLANTS
SEPARATION PROCESSES
510200* - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)
090400 - Solid Waste & Wood Fuels- (-1989)
140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)