Density, biomass, productivity, and nutrient-cycling changes during stand development in wave-regenerated balsam fir forests
The wave-regenerated balsam fir (Abies balsamea (L.) Mill.) forests of the northeastern US are uniquely suited for studies of ecosystem changes following natural disturbance. The author describes changes in a variety of population and ecosystem parameters through the course of stand development in the high-altitude fir forests. The paper reviews 11 years of study of the change in tree shape and crowning, stand density, the rate of self-thinning, aboveground biomass productivity, nutrient content and accumulation, and nutrient cycling. The author concludes that increased meteorologic inputs of nitrogen and acid in the high-altitude fir forests may have altered the natural nutrient cycles of the preindustrial era. 93 references, 9 figures, 8 tables.
- Research Organization:
- Michigan State Univ., East Lansing
- OSTI ID:
- 5524916
- Journal Information:
- Ecol. Monogr.; (United States), Journal Name: Ecol. Monogr.; (United States) Vol. 54:2; ISSN ECMOA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
290300 -- Energy Planning & Policy-- Environment
Health
& Safety
290400 -- Energy Planning & Policy-- Energy Resources
500100* -- Environment
Atmospheric-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID RAIN
ATMOSPHERIC PRECIPITATIONS
BIOLOGICAL RECOVERY
BIOLOGICAL REGENERATION
BIOMASS
ECOSYSTEMS
ELEMENTS
ENERGY SOURCES
FORESTS
GROWTH
NITROGEN
NONMETALS
NUTRIENTS
PLANT GROWTH
PLANTS
PRODUCTIVITY
RAIN
RECOVERY
RENEWABLE ENERGY SOURCES
RESOURCE CONSERVATION
SURVIVAL CURVES
TERRESTRIAL ECOSYSTEMS
TREES