Climate-growth relationships for bog-grown black spruce in northern Minnesota
- Univ. of Minnesota, St. Paul (United States)
Black spruce (Picea mariana) tree-ring chronologies were derived for three bogs in northern Minnesota. Standard chronologies were highly intercorrelated (0.72 to 0.87). The ring-width variability attributable to a common signal ranged from 38.6 to 56.8 percent which is large for closed canopy eastern forests. These chronologies exhibited great serial correlation, therefore all chronologies were autoregressively modelled prior to climatic analyses. Each chronology was compared to monthly temperature and precipitation data from a nearby weather station. Strengths of linear relationships were measured by the product-moment correlation coefficient. May and August temperatures from the previous year and March precipitation of the current year were significantly correlated with ring-width indices. These data suggest that tree-ring chronologies from mid-continental peatlands may be a valuable, though presently ignored, source of paleoclimatic data.
- OSTI ID:
- 6395714
- Report Number(s):
- CONF-930798-; CODEN: BECLAG
- Journal Information:
- Bulletin of the Ecological Society of America; (United States), Vol. 74:2; Conference: 78. annual Ecological Society of America (ESA) meeting, Madison, WI (United States), 31 Jul - 4 Aug 1993; ISSN 0012-9623
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
CLIMATIC CHANGE
BIOLOGICAL EFFECTS
EVALUATION
SPRUCES
TREE RINGS
WETLANDS
FORESTS
MINNESOTA
PALEOCLIMATOLOGY
PLANT GROWTH
AQUATIC ECOSYSTEMS
CONIFERS
DEVELOPED COUNTRIES
ECOSYSTEMS
GROWTH
NORTH AMERICA
PALEONTOLOGY
PINOPHYTA
PLANTS
TREES
USA
560400* - Other Environmental Pollutant Effects
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)