Soil Carbon and Other Quality Indicators
in Managed Northern Forests
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Research Sites:
ATLAS Land
Coolidge SF
Emerald Lake SP
Green Mountain NF
Groton SF
Hinesburg TF
Jericho RF (JRF)    
Marsh-Billings-Rockefeller NP

Starksboro TF
Steam Mill Brook WMA
Sterling TF
The Waterworks Property
Willoughby SF

Steam Mill Brook Wildlife Management Area
1 site - map below
SMB - Spruce-Fir Forest

Elevation: 649 m - 2,129 ft
Average aspect: 254° (E)
Average slope:
Site History: The Vermont Fish & Wildlife Department purchased the majority of the property in 1971. Smaller parcels were added in later years, and Wheelock Mountain was added in 1996. Much of the WMA was previously owned by the Fairbanks Scales Company and was an important timber source for their large factory in nearby St. Johnsbury. Steam Mill Brook bisects the WMA, and in the late 19th century it supplied power to at least six sawmills along its banks and tributaries. Many old mill, barn, house and school foundations, along with stone walls, remnant fields and apple trees are testimony to what was once a bustling community tucked away in the remote hills of Walden.

SMB - Aboveground Biomass:

Average Tree Height: 12.1  m -  39.7 ft

Percent of total basal area occupied by each tree species:

Balsam Fir Abies balsamea 53.3%
Red MapleAcer rubrum27.6%
Red SprucePicea rubens12.0%
Paper BirchBetula papyrifera5.4%
Grey BirchBetula populifolia1.6%
Yellow Birch Betula alleghaniensis 0.1%
Staghorn Sumac Rhus Typhina 0.1%

Living tree and sapling biomass (dry weight)
250.7 Mg/ha - 111.8 ton/acre

Carbon stored in living trees and saplings:
125.3 Mg/ha

SMB- Forest Floor and Soil:
Soil Pit 1

Soil Series:

Dixfield

Soil Pit 3

Soil Series:

Tunbridge

Soil Pit 5 

Soil Series: 

Dixfield or Marlow



Site Map:

Home Page   |   Contact Us   |   Summary of Results   |   Methods
ATLAS Land  |  Coolidge SF  |   Emerald Lake SP  |  Green Mountain NF  |  Groton SF  |  Hinesburg TF  
Jericho RF  |   Marsh-Billings-Rockefeller NP  |  Starksboro TF  |  Steam Mill Brook WMA 
Sterling TF  |  The Waterworks Property  | 
Willoughby SF