Details
| Original language | English |
|---|---|
| Pages (from-to) | 60-63 |
| Number of pages | 4 |
| Journal | Soil Science Society of America Journal |
| Volume | 77 |
| Issue number | 1 |
| Publication status | Published - Jan 2013 |
| Externally published | Yes |
Abstract
Reference volume for soil physical and chemical characteristics of soil samples is often based on soil core extraction. At the aggregate level, however, volume determination is more difficult and fraught with greater uncertainty due to irregular shapes. Our objective was to identify a method that best described relevant variables in aggregates. For this purpose, we compared four methods to determine the possibilities and limitations in acquiring those variables: paraffin coating and submerging, automated pycnometer, three-dimensional laser scanner, and x-ray microcomputed tomography. All methods gave reliable results for aggregate volume, but the pycnometer and three-dimensional laser scanner slightly overestimated the volume. The key benefits of the three-dimensional laser scanner and x-ray microtomography are the gain of additional parameters such as surface roughness, axial ratios, and interaggregate pore volumes. These characteristics may be of interest for further questions such as aggregate stability or accessibility of sorption surfaces.
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Soil Science
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In: Soil Science Society of America Journal, Vol. 77, No. 1, 01.2013, p. 60-63.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Aggregate and soil clod volume measurement
T2 - A method comparison
AU - Uteau, D.
AU - Pagenkemper, S. K.
AU - Peth, S.
AU - Horn, R.
PY - 2013/1
Y1 - 2013/1
N2 - Reference volume for soil physical and chemical characteristics of soil samples is often based on soil core extraction. At the aggregate level, however, volume determination is more difficult and fraught with greater uncertainty due to irregular shapes. Our objective was to identify a method that best described relevant variables in aggregates. For this purpose, we compared four methods to determine the possibilities and limitations in acquiring those variables: paraffin coating and submerging, automated pycnometer, three-dimensional laser scanner, and x-ray microcomputed tomography. All methods gave reliable results for aggregate volume, but the pycnometer and three-dimensional laser scanner slightly overestimated the volume. The key benefits of the three-dimensional laser scanner and x-ray microtomography are the gain of additional parameters such as surface roughness, axial ratios, and interaggregate pore volumes. These characteristics may be of interest for further questions such as aggregate stability or accessibility of sorption surfaces.
AB - Reference volume for soil physical and chemical characteristics of soil samples is often based on soil core extraction. At the aggregate level, however, volume determination is more difficult and fraught with greater uncertainty due to irregular shapes. Our objective was to identify a method that best described relevant variables in aggregates. For this purpose, we compared four methods to determine the possibilities and limitations in acquiring those variables: paraffin coating and submerging, automated pycnometer, three-dimensional laser scanner, and x-ray microcomputed tomography. All methods gave reliable results for aggregate volume, but the pycnometer and three-dimensional laser scanner slightly overestimated the volume. The key benefits of the three-dimensional laser scanner and x-ray microtomography are the gain of additional parameters such as surface roughness, axial ratios, and interaggregate pore volumes. These characteristics may be of interest for further questions such as aggregate stability or accessibility of sorption surfaces.
UR - http://www.scopus.com/inward/record.url?scp=84872562302&partnerID=8YFLogxK
U2 - 10.2136/sssaj2012.0227n
DO - 10.2136/sssaj2012.0227n
M3 - Article
AN - SCOPUS:84872562302
VL - 77
SP - 60
EP - 63
JO - Soil Science Society of America Journal
JF - Soil Science Society of America Journal
SN - 0361-5995
IS - 1
ER -