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Calhoun Experimental Forest Soil Carbon Study
Entry ID: DU.CalhounForest

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Abstract: This experiment began in 1962. The site history was a)pre-1800:
Eastern North American deciduous forest; b)1800-1957:
cotton,corn,wheat,pasture. The site was converted to forest in 1957,
and the "time zero" sample was taken in 1962 from 16 permanent plots
at depths 0-7.5,7..5-15,15-35,35-60 cm. ALL samples from time zero are
archived at Duke University.


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Related URL
Description: This URL links to the GCTE-SOMNET home page where additional project
information can be obtained. This site is currently in a data sharing
phase of the network where actual data will become available shortly,
at different levels of accessibility. Please follow this Link for
more information.
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Geographic Coverage
Spatial coordinates   
  N: 34.6   S: 34.4   E: -81.4   W: -81.6
Min Depth: SURFACE Max Depth: 60CM

Data Set Citation
Dataset Originator/Creator: Richter, D.D. and D. Markewitz
Dataset Title: The Calhoun Experimental Forest
Dataset Series Name: Understanding Soil Change : Soil Sustainability over Millennia, Centuries, and Decades
Dataset Release Date: 2001
Dataset Publisher: Cambridge University Press
Online Resource:
Temporal Coverage
Start Date: 1962-01-01
Data Resolution
Vertical Resolution: 7cm
Temporal Resolution: varies by measurement
Quality There are at least 8 replicates in the experiment. The experiment has
a randomized plot design. There are control plots described as
follows: In 1992-93 a set of sample plots were established within 10
km of the Calhoun Experimental Forest. Soils were derived from the
same soil series as the Calhoun, but supported 40-50 yr ... View entire text
Access Constraints none
Use Constraints Link to the following location to view data use policy of SOMNET members:
Data Center
Nicholas School of the Environment and Earth Sciences, Duke University Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 919-613-8000
Phone: 919-613-8031
Fax: 919-684-8741
Email: drichter at
Contact Address:
Duke University
The Forest, Soil and Water Lab
Nicholas School of the Environment and Earth Sciences
Box 90328
City: Durham
Province or State: NC
Postal Code: 27708-0328
Country: USA
Richter, D.D. & Markewitz, D. (1995a) How deep is the soil ?
Bioscience: 600-606.
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 1999-09-20
Last DIF Revision Date: 2017-08-23
Future DIF Review Date: 2001-09-20