Dataset: Forest Ecosystem Management Demonstration Project: Soil 2002

Methods

The methods followed in the creation of the dataset, including description of field, laboratory and processing steps, and quality control procedures

Current Methods

• 
  Started: 2001-07-01
  

  Carabid, Collembola and soil sampling are within the planned silvicultural treatment units: seven, 2 ha. treatment units (six manipulations and a control) with a minimum of 50 meters between each unit.

• Treatment plans
  Started: 2001-07-01
  

  The planned treatments include three commercial harvests: single-tree selection, shelterwood, and crop tree release; and three new techniques designed to enhance structural complexity of forests in escalating intensities. The treatements are planned for the winter of 2002-2003.

• Sample collection and processing
  Started: 2001-07-01
  

  Nested within each unit are 4 sampling plots for both Carabid and Collembola sampling. Carabid sampling is conducted using pitfall traps, collected every 2 weeks through mid-October. Specimens are pinned, sorted and identified to species. Collembola sampling is conducted usiing soil cores taken monthly through mid-October. The insects are extracted from the soil using Berlese funnels. Specimens are preserved in ETOH for later identification to family and genus level.

• Soil sample collection and analysis
  Started: 2001-07-01
  

  Soil samples collected in late summer will be analyzed by horizon for organic matter content, total organic nitrogen, ammonium, nitrate, phosphorus, potassium, calcium, and other micronutrients.

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

Sampling Equipment

Equipment and software used to collect data, including how that equipment was used.

Current Equipment

• Bulb planter
  Started: 2001-07-01
  

  Collembola soil samples collected using a bulb planter. Carabid pitfall traps consist of 59-ml plastic cups placed within 355-ml plastic cups inserted below ground level.

Site Characteristics

The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection

• Site Description

  Stevensville Brook watershed on the Mount Mansfield State Forest. Mid-elevation northern harwood forest.