Details
| Original language | English |
|---|---|
| Pages (from-to) | 233-238 |
| Number of pages | 6 |
| Journal | Journal of Plant Nutrition and Soil Science |
| Volume | 169 |
| Issue number | 2 |
| Publication status | Published - Apr 2006 |
Abstract
Depth-dependent soil bulk density (BDS) is usually affected by soil-specific factors like texture, structure, clay mineralogy, soil organic-matter content, soil moisture content, and composition of soil solution and is also affected by external factors like overburden-stress history or hydrological fluxes. Generally, the depth-dependent BDS cannot be predicted or extrapolated precisely from a limited number of sampling depths. In the present paper, an easy method is proposed to estimate the state of soil mechanical stress by analyzing the packing characteristics of the profile using soil bulk-density data. Results for homogeneous loess profiles exposed to the site-specific climatic conditions show that the depth-dependent relation of void ratio vs. weight of overburden soil can be described systematically so that deviations from the noncompacted reference state can be detected. We observed that precompaction increased from forest soils (reference) to agricultural soils with decreasing depth.
Keywords
- Bulk density, Coefficient of stresses at rest, Depth-dependent soil compaction
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Soil Science
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Journal of Plant Nutrition and Soil Science, Vol. 169, No. 2, 04.2006, p. 233-238.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Estimating soil stress distribution by using depth-dependent soil bulk-density data
AU - Bachmann, Jörg
AU - Hartge, Karl Heinrich
N1 - Copyright: Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006/4
Y1 - 2006/4
N2 - Depth-dependent soil bulk density (BDS) is usually affected by soil-specific factors like texture, structure, clay mineralogy, soil organic-matter content, soil moisture content, and composition of soil solution and is also affected by external factors like overburden-stress history or hydrological fluxes. Generally, the depth-dependent BDS cannot be predicted or extrapolated precisely from a limited number of sampling depths. In the present paper, an easy method is proposed to estimate the state of soil mechanical stress by analyzing the packing characteristics of the profile using soil bulk-density data. Results for homogeneous loess profiles exposed to the site-specific climatic conditions show that the depth-dependent relation of void ratio vs. weight of overburden soil can be described systematically so that deviations from the noncompacted reference state can be detected. We observed that precompaction increased from forest soils (reference) to agricultural soils with decreasing depth.
AB - Depth-dependent soil bulk density (BDS) is usually affected by soil-specific factors like texture, structure, clay mineralogy, soil organic-matter content, soil moisture content, and composition of soil solution and is also affected by external factors like overburden-stress history or hydrological fluxes. Generally, the depth-dependent BDS cannot be predicted or extrapolated precisely from a limited number of sampling depths. In the present paper, an easy method is proposed to estimate the state of soil mechanical stress by analyzing the packing characteristics of the profile using soil bulk-density data. Results for homogeneous loess profiles exposed to the site-specific climatic conditions show that the depth-dependent relation of void ratio vs. weight of overburden soil can be described systematically so that deviations from the noncompacted reference state can be detected. We observed that precompaction increased from forest soils (reference) to agricultural soils with decreasing depth.
KW - Bulk density
KW - Coefficient of stresses at rest
KW - Depth-dependent soil compaction
UR - http://www.scopus.com/inward/record.url?scp=33646005795&partnerID=8YFLogxK
U2 - 10.1002/jpln.200521845
DO - 10.1002/jpln.200521845
M3 - Article
AN - SCOPUS:33646005795
VL - 169
SP - 233
EP - 238
JO - Journal of Plant Nutrition and Soil Science
JF - Journal of Plant Nutrition and Soil Science
SN - 1436-8730
IS - 2
ER -