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
Past Methods (No longer in use)
- Sampling Sugar maples
Started: 1991-06-01
Ended: 1994-08-30Sugar maples at the Proctor Maple Research Lab, 1400 ft elevation, were samples.
Started: 1992-06-01
Ended: 1994-08-30Sugar maple, yellow birch and American beech at two elevations are samples.
- Sampling across elevations
Started: 1991-06-01
Ended: 1994-08-30Five trees per species and elevation are sampled from mid-upper crowns on two sides of each tree. Ten leaves per branch sample are retained for lab analysis. Branches are retained for lab analysis.
- Leaf measurements
Started: 1991-06-01
Ended: 1994-08-30Leaf measurements include: identification of all symptoms and causes of injury.
- Twig evaluations
Started: 1992-06-01
Ended: 1994-08-30Twig evaluations include incidence, severity and cause of twig damage.
- Leaf sample analysis
Started: 1991-06-01
Ended: 1994-08-30Foliar insect, disease, weather and air pollutant related symptomology are recorded for leaf samples taken 3 times through the growing season: June, July and August.
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 |
|---|---|---|---|
| aspect | aspect | aspect | Measurement type: Nominal |
| col_1 | col_1 | Measurement type: Ratio Units: | |
| col_10 | col_10 | Measurement type: Ratio Units: | |
| col_11 | col_11 | Measurement type: Ratio Units: | |
| col_12 | col_12 | Measurement type: Ratio Units: | |
| col_13 | col_13 | Measurement type: Ratio Units: | |
| col_14 | col_14 | Measurement type: Ratio Units: | |
| col_15 | col_15 | Measurement type: Ratio Units: | |
| col_16 | col_16 | Measurement type: Ratio Units: | |
| col_17 | col_17 | Measurement type: Ratio Units: | |
| col_2 | col_2 | Measurement type: Ratio Units: | |
| col_3 | col_3 | Measurement type: Ratio Units: | |
| col_4 | col_4 | Measurement type: Ratio Units: | |
| col_5 | col_5 | Measurement type: Ratio Units: | |
| col_6 | col_6 | Measurement type: Ratio Units: | |
| col_7 | col_7 | Measurement type: Ratio Units: | |
| col_8 | col_8 | Measurement type: Ratio Units: | |
| col_9 | col_9 | Measurement type: Ratio Units: | |
| date | date | date and time | Measurement type: DateTime Date/Time Format: M-DD-YYYY hh:mm:ss |
| ID | ID | id | Measurement type: Nominal |
| IDkey | IDkey | idkey | Measurement type: Nominal |
| leaf | leaf | leaf | Measurement type: Nominal |
| side | side | side | Measurement type: Ordinal |
| site | site | site | Measurement type: Nominal |
| species | species | species code that starts with first letter of first and second name IE Sugar maple = SM | Measurement type: Nominal |
| tree | tree | tree | Measurement type: Nominal |
Sampling Equipment
Equipment and software used to collect data, including how that equipment was used.
Current Equipment
Pole pruners
Sectional aluminum pole pruners.
Site Characteristics
The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection
- Site Description
Browns River watershed of Mount Mansfield at the Proctor Maple Research Center (1400 ft) and the Underhill State Park (2200 ft). Northern hardwood forests.