Cited by 1,686Soil Carbon and Nitrogen DynamicsSoil Geostatistics and MappingSoil erosion and sediment transport

Calculation of organic matter and nutrients stored in soils under contrasting management regimes

Ellert, B. H., Bettany, J. R.·1995·Canadian Journal of Soil Science

Abstract

Assessments of management-induced changes in soil organic matter depend on the methods used to calculate the quantities of organic C and N stored in soils. Chemical analyses in the laboratory indicate the concentrations of elements in soils, but the thickness and bulk density of the soil layers in the field must be considered to estimate the quantities of elements per unit area. Conventional methods that calculate organic matter storage as the product of concentration, bulk density and thickness do not fully account for variations in soil mass. Comparisons between the quantities of organic C, N, P and S in Gray Luvisol soils under native aspen forest and various cropping systems were hampered by differences in the mass of soil under consideration. The influence of these differences was eliminated by calculating the masses of C, N, P and S in an "equivalent soil mass" (i.e. the mass of soil in a standard or reference surface layer). Reassessment of previously published data also indicated that estimates of organic matter storage depended on soil mass. Appraisals of organic matter depletion or accumulation usually were different for comparisons among element masses in an equivalent soil mass than for comparisons among element masses in genetic horizons or in fixed sampling depths. Unless soil erosion or deposition had altered the mass of topsoil per unit area, comparisons among unequal soil masses were unjustified and erroneous. For management-induced changes in soil organic matter and nutrient storage to be assessed reliably, the masses of soil being compared must be equivalent. Key words: Soil carbon, soil nitrogen, soil phosphorus, soil sulfur, carbon cycle, carbon storage, bulk density effects, Gray Luvisol, soil erosion

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Registry

Crossref · 10.4141/cjss95-075

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21 of 21 references verified0 citation errors · 0 not checkable

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  • To eliminate effects of sampling depth and SBD on soil P and SOC, data from the initial and 5-year samplings were recalculated on an equivalent mass basis assuming soil profile masses of 2500 and 10000 Mg ha-1 following the method of Ellert & Bettany (1995).

    “To eliminate effects of sampling depth and SBD on soil P and SOC, data from the initial and 5-year samplings were recalculated on an equivalent mass basis assuming soil profile masses of 2500 and 10 000 Mg ha À1 following the method of Ellert & Bettany (1995).”

    From Field-scale soil property changes under switchgrass managed for bioenergy (2011) · cites this paper as Ellert & Bettany (1995)

  • Equivalent mass SOC mean values were smaller in relation to volumetric SOC changes, a result of using the shallower sampling depth to account for variation in SBD.

    “Equivalent mass SOC mean values were smaller in relation to volumetric SOC changes, a result of using the shallower sampling depth to account for variation in SBD (Ellert & Bettany, 1995).”

    From Field-scale soil property changes under switchgrass managed for bioenergy (2011) · cites this paper as Ellert & Bettany, 1995

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Authors
Ellert, B. H., & Bettany, J. R.
Venue
Canadian Journal of Soil Science
Published
1995-11-01
Volume
75
Issue
4
Pages
529-538
ISSN
  • 0008-4271 (ISSN-L)
  • 1918-1841
OpenAlex
W2015262491
Cited by
1,686
References
21
Citations by year
2026: 99 · 2025: 100 · 2024: 117 · 2023: 106 · 2022: 110 · 2021: 96 · 2020: 90 · 2019: 78 · 2018: 88 · 2017: 65 · 2016: 100 · 2015: 76 · 2014: 80 · 2013: 83 · 2012: 54
FWCI
8.36
Type
journal article
Language
en
Open access
closed
Locations
  • Canadian Journal of Soil Science (publishedVersion)
  • Digital Commons - USU (Utah State University) (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Environmental Science › Environmental Engineering › Soil Geostatistics and Mapping
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil erosion and sediment transport
Keywords
soil carbon, soil nitrogen, soil phosphorus, soil sulfur, bulk density, soil depth, soil erosion, soil deposition, cropping systems, Gray Luvisol, soil management, carbon cycle

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