[Parameters: Topic='AGRICULTURE', Term='FOREST SCIENCE', Variable_Level_1='FOREST MENSURATION']
Quaking Aspen Growth, Climate, and Soil DatabaseEntry ID: USDA0172
Abstract: This database provides data on annual quaking aspen volume
growth at two-foot intervals up the stem for three trees per
plot at fourteen locations coupled with plot location climate
data and plot soil sample analysis data. Used for analysis of
quaking aspen growth dynamics.
Collection Organization: USDA/FS - North Central Forest
Collection Methodology: Field plots were ... purposefully selected
to get a large range of soil and climate properties. Soil
sampling was done at four locations for each plot by depth
classes of 0-25 cm, 26-50 cm, 51-75 cm, and 76-100 cm. Trees
were chosen as dominant and/or codominants on the plot. Four
trees were felled and sectioned at two-foot intervals up the
stem to 4" top diameter. Tree discs were dried and scanned to
determine ring counts and widths at each two-foot interval.
Climate at the plot location for the entire life span of the
trees was spatially interpolated from meteorological stations.
Collection Frequency: One time.
Update Characteristics: N/A
Data Center: USDA Forest Service
Dissemination Media: Floppy Disk.
File Format: ASCII flat files.
Access Instructions: Contact the data center.
Start Date: 1900-01-01Stop Date: 1992-12-31
AGRICULTURE > FOREST SCIENCE > FOREST MENSURATION
AGRICULTURE > FOREST SCIENCE > FOREST YIELDS
ATMOSPHERE > PRECIPITATION
BIOSPHERE > TERRESTRIAL ECOSYSTEMS > FORESTS
BIOSPHERE > VEGETATION > CANOPY CHARACTERISTICS
BIOSPHERE > VEGETATION > FOREST COMPOSITION/VEGETATION STRUCTURE
BIOSPHERE > ECOLOGICAL DYNAMICS > COMMUNITY DYNAMICS > PLANT SUCCESSION
Quality Fifteen percent of the tree disks were rescanned to check
program and operator errors. Few were found.
Role: TECHNICAL CONTACT
Phone: (612) 649-5177
Fax: (612) 649-5285
Email: rleary at mercury.forestry.umn.edu
USDA Forest Service North Central Forest Experiment Station 1992 Folwell Avenue
City: St. Paul
Province or State: MN
Postal Code: 55108
Creation and Review Dates
DIF Creation Date: 2005-09-09
Last DIF Revision Date: 2005-09-19