Home About Browse Search
Svenska


Organic carbon stocks in topsoil and subsoil in long-term ley and cereal monoculture rotations

Börjesson, Gunnar and Bolinder, Martin and Kirchmann, Holger and Kätterer, Thomas (2018). Organic carbon stocks in topsoil and subsoil in long-term ley and cereal monoculture rotations. Biology and fertility of soils. 54, 549–558
[Journal article]

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution.

678kB

Official URL: https://doi.org/10.1007/s00374-018-1281-x

Abstract

Soil organic C (SOC) in agricultural soils is affected by cropping system. In order to compare the impact of ley-dominated and cereal monoculture rotations on soil properties, a series of experiments was started in Sweden in the early 1980s. This study quantified the effect of rotations and N fertilisation on SOC stocks and microbial community composition. After 35 years, soil samples taken down to 50-cm depth at two sites with contrasting soil texture (clay and loam) were analysed for soil C and N, bulk density and phospholipid fatty acid (PLFA) content. Significant increases in SOC concentrations and stocks were found in the ley-dominated rotation compared with the cereal monoculture rotation, the difference being 0.36 and 0.59 Mg C ha−1 year−1 in the topsoil (0–20 cm) for sites with the clay and loam texture, respectively, in average over N fertiliser levels. Nitrogen fertilisation increased SOC stocks significantly in the cereal monoculture, but not in the ley-dominated rotation. In the loam, SOC responses in the subsoil were almost as high as those in the topsoil, but they were insignificant in the clay soil. These results indicate that soil texture and structure can have a great impact on the potential of subsoils to sequester C, which requires attention when scaling up SOC sequestration rates for regional or global assessments.

Authors/Creators:Börjesson, Gunnar and Bolinder, Martin and Kirchmann, Holger and Kätterer, Thomas
Title:Organic carbon stocks in topsoil and subsoil in long-term ley and cereal monoculture rotations
Series/Journal:Biology and fertility of soils (0178-2762)
Year of publishing :2018
Volume:54
Page range:549–558
Number of Pages:10
Publisher:Springer
ISSN:0178-2762
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Microbiology (Microbiology in the medical area to be 30109)
(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Geosciences, Multidisciplinary
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 405 Other Agricultural Sciences > Environmental Sciences related to Agriculture and Land-use
Agrovoc terms:carbon, soil fertility, crop rotation
Keywords:Soil organic matter, Carbon sequestration, Subsoil, Crop rotation, Phospholipid fatty acids
URN:NBN:urn:nbn:se:slu:epsilon-e-4868
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4868
ID Code:15455
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Soil and Environment
(S) > Dept. of Soil and Environment

(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:08 May 2018 06:34
Metadata Last Modified:08 May 2018 06:44

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits