Details
| Original language | English |
|---|---|
| Article number | G02018 |
| Journal | Journal of Geophysical Research: Biogeosciences |
| Volume | 117 |
| Issue number | 2 |
| Publication status | Published - 1 Jun 2012 |
Abstract
In this study, we analyzed the influence of soil mineral characteristics (e.g., clay concentration and mineralogical composition, iron and aluminum oxide concentration and crystallinity, specific surface area, and exchangeable cation concentration) on (i) organic carbon (OC) content (kg m-2) and (ii) the concentration (g kg-1), composition, and stability of the mineral-associated organic matter (OM) of arable and forest topsoils. We selected seven soil types with different mineral characteristics for this study. For each soil type, samples were taken from topsoils of a deciduous forest and an adjacent arable site. The arable and forest sites have been used continuously for more than 100years. Na-pyrophosphate soluble OM fractions (OM(PY)), representing mineral-associated OM, were extracted, analyzed for OC and 14C concentrations, and characterized by FTIR spectroscopy. For the forest and arable topsoils, a linear relationship was found between the OC content and exchangeable Ca. For the arable topsoils (pH 6.7-7.5), correlation analyses indicated that the OCPY concentration increased with an increase in oxalate soluble Fe and Al, exchangeable Ca, and Na-pyrophosphate soluble Mg and Fe concentrations. The stability of OM(PY) determined by the 14C measurements of the near-neutral arable topsoils was shown to increase with the specific surface area and the concentration of exchangeable Ca. For the acidic forest topsoils (pH <5), the stability of OM(PY) was found to increase as the pH, and the concentration of C=O groups and Na-pyrophosphate soluble Mg increase.
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geophysics
- Agricultural and Biological Sciences(all)
- Forestry
- Earth and Planetary Sciences(all)
- Oceanography
- Agricultural and Biological Sciences(all)
- Aquatic Science
- Environmental Science(all)
- Ecology
- Environmental Science(all)
- Water Science and Technology
- Agricultural and Biological Sciences(all)
- Soil Science
- Earth and Planetary Sciences(all)
- Geochemistry and Petrology
- Earth and Planetary Sciences(all)
- Earth-Surface Processes
- Earth and Planetary Sciences(all)
- Atmospheric Science
- Earth and Planetary Sciences(all)
- Earth and Planetary Sciences (miscellaneous)
- Earth and Planetary Sciences(all)
- Space and Planetary Science
- Earth and Planetary Sciences(all)
- Palaeontology
Sustainable Development Goals
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In: Journal of Geophysical Research: Biogeosciences, Vol. 117, No. 2, G02018, 01.06.2012.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - The influence of mineral characteristics on organic matter content, composition, and stability of topsoils under long-term arable and forest land use
AU - Kaiser, M.
AU - Ellerbrock, R. H.
AU - Wulf, M.
AU - Dultz, S.
AU - Hierath, C.
AU - Sommer, M.
N1 - Copyright: Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2012/6/1
Y1 - 2012/6/1
N2 - In this study, we analyzed the influence of soil mineral characteristics (e.g., clay concentration and mineralogical composition, iron and aluminum oxide concentration and crystallinity, specific surface area, and exchangeable cation concentration) on (i) organic carbon (OC) content (kg m-2) and (ii) the concentration (g kg-1), composition, and stability of the mineral-associated organic matter (OM) of arable and forest topsoils. We selected seven soil types with different mineral characteristics for this study. For each soil type, samples were taken from topsoils of a deciduous forest and an adjacent arable site. The arable and forest sites have been used continuously for more than 100years. Na-pyrophosphate soluble OM fractions (OM(PY)), representing mineral-associated OM, were extracted, analyzed for OC and 14C concentrations, and characterized by FTIR spectroscopy. For the forest and arable topsoils, a linear relationship was found between the OC content and exchangeable Ca. For the arable topsoils (pH 6.7-7.5), correlation analyses indicated that the OCPY concentration increased with an increase in oxalate soluble Fe and Al, exchangeable Ca, and Na-pyrophosphate soluble Mg and Fe concentrations. The stability of OM(PY) determined by the 14C measurements of the near-neutral arable topsoils was shown to increase with the specific surface area and the concentration of exchangeable Ca. For the acidic forest topsoils (pH <5), the stability of OM(PY) was found to increase as the pH, and the concentration of C=O groups and Na-pyrophosphate soluble Mg increase.
AB - In this study, we analyzed the influence of soil mineral characteristics (e.g., clay concentration and mineralogical composition, iron and aluminum oxide concentration and crystallinity, specific surface area, and exchangeable cation concentration) on (i) organic carbon (OC) content (kg m-2) and (ii) the concentration (g kg-1), composition, and stability of the mineral-associated organic matter (OM) of arable and forest topsoils. We selected seven soil types with different mineral characteristics for this study. For each soil type, samples were taken from topsoils of a deciduous forest and an adjacent arable site. The arable and forest sites have been used continuously for more than 100years. Na-pyrophosphate soluble OM fractions (OM(PY)), representing mineral-associated OM, were extracted, analyzed for OC and 14C concentrations, and characterized by FTIR spectroscopy. For the forest and arable topsoils, a linear relationship was found between the OC content and exchangeable Ca. For the arable topsoils (pH 6.7-7.5), correlation analyses indicated that the OCPY concentration increased with an increase in oxalate soluble Fe and Al, exchangeable Ca, and Na-pyrophosphate soluble Mg and Fe concentrations. The stability of OM(PY) determined by the 14C measurements of the near-neutral arable topsoils was shown to increase with the specific surface area and the concentration of exchangeable Ca. For the acidic forest topsoils (pH <5), the stability of OM(PY) was found to increase as the pH, and the concentration of C=O groups and Na-pyrophosphate soluble Mg increase.
UR - http://www.scopus.com/inward/record.url?scp=84861876330&partnerID=8YFLogxK
U2 - 10.1029/2011JG001712
DO - 10.1029/2011JG001712
M3 - Article
AN - SCOPUS:84861876330
VL - 117
JO - Journal of Geophysical Research: Biogeosciences
JF - Journal of Geophysical Research: Biogeosciences
SN - 0148-0227
IS - 2
M1 - G02018
ER -