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

  • Plot establishment
    Started: 1991-05-01

    One plot established at Proctor Maple Research Center in 1991.


  • Started: 1992-05-01

    Eight plots on west slope of Mt. Mansfield paired at 4 elevations: 1400, 2200, 3000, and 3800 feet. Used to assess changes in crown condition, injury to crown and bole, growth, regeneration, understory cover.


  • Started: 1990-05-01

    One plot established in the Lye Brook Wilderness Area as part of the National Forest Health Monitoring Program at 2300 ft.


  • Started: 1994-05-01

    Four plots in the Lye Brook Wilderness Area paired at 1400 and 2300 feet, in addition to the NFHM plot at 2300 feet.


  • Started: 1997-05-01

    Six plots established in 1997 on the east slope of the mountain in Ranch Valley paired at 1400, 2200, and 3000 feet.

Past Methods (No longer in use)

  • Ice storm effects
    Started: 1998-01-30
    Ended: 1998-06-01

    In 1998, conducted special spring survey on plots affected by the January ice storm. Measurements included bole breakage and crown loss (%).

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
CountCount

Frequency of specific species occurence

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Measurement type:
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CountClass1CountClass1

A seedling is counted as a class one if it is a conifer that is less than 6 inches in height or a conifer than is less than 12 inches in height.

Measurement type: Interval
Units:
Precision: 1
PlotIDPlot ID

Plot ID

Measurement type: Nominal
CountClass2CountClass2

A seedling is counted as a class two if it is a conifer that is equal or greater than 6 inches in height or it is a hardwood that is greater than or equal to 12 inches in height.

Measurement type: Interval
Units:
Precision: 1
YearYear

Year

Measurement type: DateTime
Date/Time Format: YYYY
SubplotIDSubplot ID

Subplot ID

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SpeciesSpecies

Seedling species

Measurement type: Nominal
Unit: unavailable
VT FHM Seedling Species List
+ show
Appears in data asMeaning
371yellow birch (Betula alleghaniensis) - View ITIS Record
318sugar maple (Acer saccharum) - View ITIS Record
531American beech (Fagus grandifolia) - View ITIS Record
315striped maple (Acer pensylvanicum) - View ITIS Record
316red maple (Acer rubrum) - View ITIS Record
376mountain paper birch (Betula cordifolia) - View ITIS Record
319mountain maple (Acer spicatum) - View ITIS Record
701eastern hophornbeam; hophornbeam (Ostrya virginiana) - View ITIS Record
541white ash (Fraxinus americana) - View ITIS Record
129eastern white pine (Pinus strobus) - View ITIS Record
370birch (Betula sp.) - View ITIS Record
999 (Radiocystis ) - View ITIS Record
375paper birch (Betula papyrifera) - View ITIS Record
743bigtooth aspen (Populus grandidentata) - View ITIS Record
402bitternut hickory; pignut (Carya cordiformis) - View ITIS Record
261Canada hemlock; hemlock spruce (Tsuga canadensis) - View ITIS Record
762black cherry (Prunus serotina) - View ITIS Record
97red spruce (Picea rubens) - View ITIS Record
12balsam fir (Abies balsamea) - View ITIS Record
833northern red oak (Quercus rubra) - View ITIS Record
356serviceberry (Amelanchier sp.) - View ITIS Record
837black oak (Quercus velutina) - View ITIS Record
372sweet birch (Betula lenta) - View ITIS Record
802white oak (Quercus alba) - View ITIS Record
71tamarack (Larix laricina) - View ITIS Record
351red alder (Alnus rubra) - View ITIS Record
935American mountain-ash (Sorbus americana) - View ITIS Record
544green ash (Fraxinus pennsylvanica) - View ITIS Record
310maples (Acer sp.) - View ITIS Record
975slippery elm (Ulmus rubra) - View ITIS Record
761pin cherry (Prunus pensylvanica) - View ITIS Record
317silver maple (Acer saccharinum) - View ITIS Record
391American hornbeam (Carpinus caroliniana) - View ITIS Record
407shagbark hickory (Carya ovata) - View ITIS Record
693black gum, black tupelo, blackgum (Nyssa sylvatica) - View ITIS Record
543black ash (Fraxinus nigra) - View ITIS Record
746quaking aspen (Populus tremuloides) - View ITIS Record
91Norway spruce (Picea abies) - View ITIS Record
951American basswood (Tilia americana) - View ITIS Record
379gray birch (Betula populifolia) - View ITIS Record
350alnus spp. (Alnus sp.) - View ITIS Record
314black sugar maple (Acer nigrum) - View ITIS Record
972American elm (Ulmus americana) - View ITIS Record
742Eastern cottonwood (Populus deltoides) - View ITIS Record
832chestnut oak ( Quercus prinus) - View ITIS Record

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

Dataset Notes

Notes describing any special conditions or considerations for understanding the quality and consistency of the data


Start Date End Date Note Date Entered
2017-11-29 00:00:002017-11-29 23:59:59Counts from 1991 to 2013 were entered into the CountClass2 field because they followed a protocol that counted conifers if they were taller than or equal to 6 inches in height and hardwoods if they were taller than or equal to 12 inches in height. From 2014 to 2016 seedlings were counted as a whole without consideration for classes based on height. In 2017 a different protocol was followed where seedlings were broken down by Class1 (Conifer =12 in tall).2017-11-29 10:39:52