Can particulate organic matter reveal emerging changes in soil organic carbon?

Research output: Contribution to journalJournal articlepeer-review

Standard

Can particulate organic matter reveal emerging changes in soil organic carbon? / Simonsson, Magnus; Kirchmann, Holger; Magid, Jakob; Kätterer, Thomas.

In: Soil Science Society of America Journal, Vol. 78, No. 4, 2014, p. 1279-1290.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Simonsson, M, Kirchmann, H, Magid, J & Kätterer, T 2014, 'Can particulate organic matter reveal emerging changes in soil organic carbon?', Soil Science Society of America Journal, vol. 78, no. 4, pp. 1279-1290. https://doi.org/10.2136/sssaj2013.12.0533

APA

Simonsson, M., Kirchmann, H., Magid, J., & Kätterer, T. (2014). Can particulate organic matter reveal emerging changes in soil organic carbon? Soil Science Society of America Journal, 78(4), 1279-1290. https://doi.org/10.2136/sssaj2013.12.0533

Vancouver

Simonsson M, Kirchmann H, Magid J, Kätterer T. Can particulate organic matter reveal emerging changes in soil organic carbon? Soil Science Society of America Journal. 2014;78(4):1279-1290. https://doi.org/10.2136/sssaj2013.12.0533

Author

Simonsson, Magnus ; Kirchmann, Holger ; Magid, Jakob ; Kätterer, Thomas. / Can particulate organic matter reveal emerging changes in soil organic carbon?. In: Soil Science Society of America Journal. 2014 ; Vol. 78, No. 4. pp. 1279-1290.

Bibtex

@article{e96772061c9b44d9a7796824a19c9003,
title = "Can particulate organic matter reveal emerging changes in soil organic carbon?",
abstract = "This study assessed whether particulate organic matter (POM) in sand fractions, isolated by wet sieving after treatment with Na hexametaphosphate, can be a sensitive indicator of incipient changes in the content and composition of soil organic matter. In five long-term field experiments including different cropping systems, N fertilizer applications, and organic amendments, we found that C and N in the fine to medium sand fraction (0.063-0.600 mm, {"}Fraction B{"}) showed considerably larger relative errors according to ANOVA (RMSE was 11-20% of the mean), slightly lower values of the F statistic, and slightly less contrast between treatments than total organic C and N (RMSE 3-9% of the mean). Imprecision in laboratory procedures only explained part of the increase in RMSE for C and N in Fraction B compared with total C and N; within-field spatial variability most likely had a greater influence. Although organic matter in Fraction B had a higher intrinsic sensitivity to soil management, which was partly able to overcome the larger errors, we concluded that an observer would be more likely to detect changes by measuring total organic C and N, when monitoring decadal changes in C and N pools. This makes the investigated POM fractions less suitable as indicators for changes in soil C stocks. However, the C/N ratio of Fraction B showed a distinct signature of the history of organic matter input to the soil, which was absent in the C/N ratio of the total fine earth.",
author = "Magnus Simonsson and Holger Kirchmann and Jakob Magid and Thomas K{\"a}tterer",
year = "2014",
doi = "10.2136/sssaj2013.12.0533",
language = "English",
volume = "78",
pages = "1279--1290",
journal = "Soil Science Society of America Journal",
issn = "0361-5995",
publisher = "Soil Science Society of America",
number = "4",

}

RIS

TY - JOUR

T1 - Can particulate organic matter reveal emerging changes in soil organic carbon?

AU - Simonsson, Magnus

AU - Kirchmann, Holger

AU - Magid, Jakob

AU - Kätterer, Thomas

PY - 2014

Y1 - 2014

N2 - This study assessed whether particulate organic matter (POM) in sand fractions, isolated by wet sieving after treatment with Na hexametaphosphate, can be a sensitive indicator of incipient changes in the content and composition of soil organic matter. In five long-term field experiments including different cropping systems, N fertilizer applications, and organic amendments, we found that C and N in the fine to medium sand fraction (0.063-0.600 mm, "Fraction B") showed considerably larger relative errors according to ANOVA (RMSE was 11-20% of the mean), slightly lower values of the F statistic, and slightly less contrast between treatments than total organic C and N (RMSE 3-9% of the mean). Imprecision in laboratory procedures only explained part of the increase in RMSE for C and N in Fraction B compared with total C and N; within-field spatial variability most likely had a greater influence. Although organic matter in Fraction B had a higher intrinsic sensitivity to soil management, which was partly able to overcome the larger errors, we concluded that an observer would be more likely to detect changes by measuring total organic C and N, when monitoring decadal changes in C and N pools. This makes the investigated POM fractions less suitable as indicators for changes in soil C stocks. However, the C/N ratio of Fraction B showed a distinct signature of the history of organic matter input to the soil, which was absent in the C/N ratio of the total fine earth.

AB - This study assessed whether particulate organic matter (POM) in sand fractions, isolated by wet sieving after treatment with Na hexametaphosphate, can be a sensitive indicator of incipient changes in the content and composition of soil organic matter. In five long-term field experiments including different cropping systems, N fertilizer applications, and organic amendments, we found that C and N in the fine to medium sand fraction (0.063-0.600 mm, "Fraction B") showed considerably larger relative errors according to ANOVA (RMSE was 11-20% of the mean), slightly lower values of the F statistic, and slightly less contrast between treatments than total organic C and N (RMSE 3-9% of the mean). Imprecision in laboratory procedures only explained part of the increase in RMSE for C and N in Fraction B compared with total C and N; within-field spatial variability most likely had a greater influence. Although organic matter in Fraction B had a higher intrinsic sensitivity to soil management, which was partly able to overcome the larger errors, we concluded that an observer would be more likely to detect changes by measuring total organic C and N, when monitoring decadal changes in C and N pools. This makes the investigated POM fractions less suitable as indicators for changes in soil C stocks. However, the C/N ratio of Fraction B showed a distinct signature of the history of organic matter input to the soil, which was absent in the C/N ratio of the total fine earth.

U2 - 10.2136/sssaj2013.12.0533

DO - 10.2136/sssaj2013.12.0533

M3 - Journal article

AN - SCOPUS:84906235673

VL - 78

SP - 1279

EP - 1290

JO - Soil Science Society of America Journal

JF - Soil Science Society of America Journal

SN - 0361-5995

IS - 4

ER -

ID: 130100619