Details and Metadata
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Methods
The methods followed in the creation of the dataset, including description of field, laboratory and processing steps, and quality control procedures
Current Methods
Mean annual basal increment changes
Raw data collected (1993) by Jeffrey Hughes to study changes in mean annual basal area increment (BAI) of canopy sugar maple trees growing at and below the species' elevation limit on Five Vermont mountainsides, in 5 year intervals, from 1963 to 1992.
Past Methods (No longer in use)
- Sampling for differences in distribution
Started: 1992-06-01
Ended: 1997-01-14Evaluation of sugar maple, yellow birch, paper birch and mountain birch on several Vermont mountains to measure differences in distriubtion as it relates to elevation-related climate.
- Evaluation
Started: 1992-06-01
Ended: 1997-01-14Overstory and understory individuals evaluated.
- Composition of data
Started: 1992-06-01
Ended: 1997-01-14Data includes species, density, relative density, basal area, relative basal area, and radial growth.
Dataset Fields
Detailed documentation of the fields comprising the dataset, including the type of measurement, units where applicable, and any controlled vocabularies or code lists present in the data
Field Name Caption Description Additional Information 0_5ya 0_5ya 0_5ya
Measurement type: Ratio
Units: cm11_15ya 11_15ya 11_15ya
Measurement type: Ratio
Units: cm16_20ya 16_20ya 16_20ya
Measurement type: Ratio
Units: cm21_25ya 21_25ya 21_25ya
Measurement type: Ratio
Units: cm26_30ya 26_30ya 26_30ya
Measurement type: Ratio
Units: cm6_10ya 6_10ya 6_10ya
Measurement type: Ratio
Units: cmBAI_cm2_a BAI_cm2_a BAI_cm2_a
Measurement type: Ratio
Units:BAI_cm2_b BAI_cm2_b BAI_cm2_b
Measurement type: Ratio
Units:BAI_cm2_c BAI_cm2_c BAI_cm2_c
Measurement type: Ratio
Units:BAI_cm2_d BAI_cm2_d BAI_cm2_d
Measurement type: Ratio
Units:BAI_cm2_f BAI_cm2_f BAI_cm2_f
Measurement type: Ratio
Units:BA_cm2_e BA_cm2_e BA_cm2_e
Measurement type: Ratio
Units:circ_cm circ_cm circ_cm
Measurement type: Ratio
Units:Core Core Measurement type: Nominal Date anal. Date anal. Date anal.
Measurement type: Nominal Date_collected Date_collected Date_collected
Measurement type: Nominal dbh_b_cm dbh_b_cm dbh_b_cm
Measurement type: Ratio
Units: cmdbh_cm dbh_cm dbh_cm
Measurement type: Ratio
Units: cmelevation elevation elevation
Measurement type: Nominal elev_meters elev_meters elev_meters
Measurement type: Interval
Units: metersradius_cm radius_cm radius_cm
Measurement type: Ratio
Units: cmRG_cm_11_15ya RG_cm_11_15ya RG_cm_11_15ya
Measurement type: Ratio
Units: cmRG_cm_16_20ya RG_cm_16_20ya RG_cm_16_20ya
Measurement type: Ratio
Units: cmRG_cm_21_25ya RG_cm_21_25ya RG_cm_21_25ya
Measurement type: Ratio
Units: cmRG_cm_26_30ya RG_cm_26_30ya RG_cm_26_30ya
Measurement type: Ratio
Units: cmRG_cm_6_10ya RG_cm_6_10ya RG_cm_6_10ya
Measurement type: Ratio
Units: cmRG_cm__0_5ya RG_cm__0_5ya RG_cm__0_5ya
Measurement type: Ratio
Units: cmSample_number Sample_number Sample_number
Measurement type: Nominal Site Site Site
Measurement type: Nominal Year Year Year
Measurement type: DateTime
Date/Time Format: YYYYSampling Equipment
Equipment and software used to collect data, including how that equipment was used.
Past Sampling Equipment (No longer in use)
Increment core, dbh tape
Started: 1992-06-01
Ended: 1997-01-14Increment core, dbh tape
Site Characteristics
The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection
- Site Description
West slope of Mount Mansfield in the Stevensville Brook watershed.
- Site Description
Five elevations off the Butler Lodge trail: 500, 600, 700, 800, 900 m
- Site Description
3-5 10 X 30 m sampling plots/elevation for trees and saplings.
- Site Description
30 - 1 X 1 m sampling plots/elevation for germinants and seedlings.