Details and Metadata
Printer-friendly version View XML version Download Ecological Metadata Language file
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)
- Transects
Started: 2000-01-01
Ended: 2004-12-31Four transects on Mount Mansfield's chin with 1.5X1.5m quadrats every 50 meters.
- Phototransect images
Started: 2004-07-01
Ended: 2004-07-30Phototransect images were standardized by using a 35mm camera, a stock 50 mm lens, a precise focal distance (5 meters), a constant aperature (16 or 22), and an in-photo reference scale (a yellow and black striped meter board). Camera to meter board compass bearings were recorded for each transect.
- Reference print
Started: 2004-07-01
Ended: 2004-07-30A second camera was used to capture an image of the entire photo point landscape- camera, tripod, meter board and all- generating a reference print for each site to be used in the field to ensure follow up photomonitoring images depict the same scene
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 |
---|---|---|---|
Photo | Transect Photo | Image file name of transect | Measurement type: Nominal |
Camera | Camera Type | Type of camera used to take photo | Measurement type: Nominal |
Lens | Lens Type | Type of lens used to take photo | Measurement type: Nominal |
Film | Film Type | Type of film used to take photo | Measurement type: Nominal |
Cam_Ht | Camera Height | Height of camera used to take photo | Measurement type: Ratio Unit: unavailable Precision: 100 |
Aperature | Camera Aperature | Diameter of aperature slot of camera used to take photo | Measurement type: Nominal |
Exposure_Num | Exposure Number | Image file name | Measurement type: Nominal |
Cam_Trail_Loc | Camera Location in Relation to Trail | Camera location in relation to trail | Measurement type: Nominal |
Dist_Cam_MeterBoard | Distance from Camera to Meter Board | Distance from camera to meter board | Measurement type: Ratio Unit: unavailable Precision: 1 |
Bearing_Cam_MeterBoard | Bearing of Camera to Meter Board | Bearing of camera to meter board | Measurement type: Ratio Unit: unavailable Precision: 100 |
Sampling Equipment
Equipment and software used to collect data, including how that equipment was used.
No sampling equipment recorded for this dataset
Site Characteristics
The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection
- Site Description
Twenty-four 5 meter phototransects and sixty-four 50 cm by 50 cm photoquadrats were subjectively sited in trampling-disturbed trailside sectors of the Mount Mansfield Natural Area. Selection criteria include site homogeneity, ease of access, and ability to accurately relocate sites for comparitive purposes. All transects and quadrats showed evidence of trampling induced vegitation and/or soil loss loss with disturbance levels ranging from light to extreme