CCZO -- Soil Survey -- Soil Texture -- Calhoun CZO -- (2014-2015)
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| Created: | Nov 19, 2019 at 6:22 a.m. (UTC) |
| Last updated: | Nov 21, 2019 at 8:04 p.m. (UTC) |
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Abstract
This is soil texture data (% sand/silt/clay) for samples collected June-August, 2014, in References Areas 3 and 4. Samples were obtained by coring to depths of 100-200 cm (site dependent) with a bucket auger. Sampling occurred at fixed intervals, e.g. 0-20, 20-40, 40-60, 60-80, and 80-100 cm. Individual samples were uniquely identified by Reference Area, Transect Number, and Depth. Samples were transported to Duke in plastic bags where they were opened and allowed to air-dry for a minimum of 2 weeks. After air-drying, samples were passed multiple times through a #10 sieve (2-mm mesh) to separate soil from > 2-mm fraction. Obtaining pre-sieve bulk soil mass, and post-sieve >2-mm mass, allowed >2-mm mass fraction to be estimated. The < 2-mm fraction was transferred to paper bags for oven-drying at 40C for 48-72 hours. Texture was measured on the oven-dry sample using a standard method based on gravitational sedimentation. The lab SOP is available upon request.
Subject Keywords
Coverage
Spatial
Temporal
| Start Date: | 06/01/2014 |
|---|---|
| End Date: | 08/31/2015 |
Content
ReadMe.md
CCZO -- Soil Survey -- Soil Texture -- Calhoun CZO -- (2014-2015)
OVERVIEW
Description/Abstract
This is soil texture data (% sand/silt/clay) for samples collected June-August, 2014, in References Areas 3 and 4. Samples were obtained by coring to depths of 100-200 cm (site dependent) with a bucket auger. Sampling occurred at fixed intervals, e.g. 0-20, 20-40, 40-60, 60-80, and 80-100 cm. Individual samples were uniquely identified by Reference Area, Transect Number, and Depth. Samples were transported to Duke in plastic bags where they were opened and allowed to air-dry for a minimum of 2 weeks. After air-drying, samples were passed multiple times through a #10 sieve (2-mm mesh) to separate soil from > 2-mm fraction. Obtaining pre-sieve bulk soil mass, and post-sieve >2-mm mass, allowed >2-mm mass fraction to be estimated. The < 2-mm fraction was transferred to paper bags for oven-drying at 40C for 48-72 hours. Texture was measured on the oven-dry sample using a standard method based on gravitational sedimentation. The lab SOP is available upon request.
Creator/Author
Heine, Paul
CZOs
Calhoun
Contact
Paul Heine, Duke University, Nicholas School of the Environment, A205 LSRC, Durham, NC 27708. pheine@duke.edu
SUBJECTS
Disciplines
Soil Science / Pedology
Topics
Soil Survey
Subtopic
Soil Texture
Keywords
texture|sand|silt|clay|pipette method|reference 3|reference 4|holcombe’s branch|cross-watershed|terrrace
Variables
Sample ID|% clay|% silt|% sand
Variables ODM2
Clay|Sand|Silt|Recorder code
TEMPORAL
Date Start
2014-06-01
Date End
2015-08-31
SPATIAL
Field Areas
Calhoun CZO Research Area 3|Calhoun CZO Research Area 4
Location
Calhoun CZO
North latitude
34.64774494
South latitude
34.57495247
West longitude
-81.77893686
East longitude
-81.66329492
REFERENCE
CZO ID
4683
Additional Metadata
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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