A Comparison of Physical Soil Organic Matter Fractionation Methods for Amended Soils
Joint Authors
Shaw, Liz J.
Duddigan, Sarah
Alexander, Paul D.
Collins, Chris D.
Source
Applied and Environmental Soil Science
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-11-11
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Earth Science , Water and Environment
Abstract EN
Selecting a suitable physical fractionation method, to investigate soil organic matter dynamics, from the plethora that are available is a difficult task.
Using five different physical fractionation methods, on soils either nontreated or with a history of amendment with a range of exogenous organic matter inputs (Irish moss peat; composted horse manure; garden compost) and a resulting range of carbon contents (6.8 to 22.2%), we show that method selection had a significant impact on both the total C recovered and the distribution of the recovered C between unprotected, physically protected, or chemically protected conceptual pools.
These between-method differences most likely resulted from the following: (i) variation in the methodological fractions obtained (i.e., distinguishing between aggregate size classes); (ii) their subsequent designation to conceptual pools (e.g., protected versus unprotected); and (iii) the procedures used in sample pretreatment and subsequent aggregate dispersion and fractionation steps.
The performance of each method also varied depending on the amendment in question.
The findings emphasise the need for an understanding of the nature of the soil samples under investigation, and the stabilisation mechanism of interest, both prior to method selection and when comparing and interpreting findings from literature studies using different fractionation methods.
American Psychological Association (APA)
Duddigan, Sarah& Shaw, Liz J.& Alexander, Paul D.& Collins, Chris D.. 2019. A Comparison of Physical Soil Organic Matter Fractionation Methods for Amended Soils. Applied and Environmental Soil Science،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1117967
Modern Language Association (MLA)
Duddigan, Sarah…[et al.]. A Comparison of Physical Soil Organic Matter Fractionation Methods for Amended Soils. Applied and Environmental Soil Science No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1117967
American Medical Association (AMA)
Duddigan, Sarah& Shaw, Liz J.& Alexander, Paul D.& Collins, Chris D.. A Comparison of Physical Soil Organic Matter Fractionation Methods for Amended Soils. Applied and Environmental Soil Science. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1117967
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117967