Modelling soil organic carbon storage with RothC in irrigated Vertisols under cotton cropping systems in the sub-tropics

Nimai Senapati*, Nilantha R. Hulugalle, Pete Smith, Brian R. Wilson, Jagadeesh B. Yeluripati, Heiko Daniel, Subhadip Ghosh, Peter Lockwood

*Corresponding author for this work

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The performance of the Rothamsted Carbon Model (RothC) in simulating soil carbon (SOC) storage in cotton based cropping systems under different tillage management practices on an irrigated Vertisol in semi-arid, subtropics was evaluated using data from a long-term (1994-2012) cotton cropping systems experiment near Narrabri in north-western New South Wales, Australia. The experimental treatments were continuous cotton/conventional tillage (CC/CT), continuous cotton/minimum tillage (CC/MT), and cotton-wheat (Triticum aestivum L.) rotation/minimum tillage (CW/MT). Soil carbon (C) input was calculated by published functions that relate crop yield to soil C input. Measured values showed a loss in SOC of 34%, 24% and 31% of the initial SOC storages within 19 years (1994-2012) under CC/CT, CC/MT, and CW/MT, respectively. RothC satisfactorily simulated the dynamics of SOC in cotton based cropping systems under minimum tillage (CC/MT and CW/MT), whereas the model performance was poor under intensive conventional tillage (CC/CT). The model RothC overestimated SOC storage in cotton cropping under conventional intensive tillage management system. This over estimation could not be attributed to the overestimation of soil C inputs, or errors in initial quantification of SOC pools for model initialization, or the ratio of incoming decomposable plant materials to resistant plant materials. Among other different factors affecting SOC dynamics and its modelling under intensive tillage in tropics and sub-tropics, we conclude that factors for tillage and soil erosion might be needed when modelling SOC dynamics using RothC under intensive tillage management system in the tropics and the sub-tropics. (C) 2014 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)38-49
Number of pages12
JournalSoil & Tillage Research
Volume143
Early online date11 Jun 2014
DOIs
Publication statusPublished - Nov 2014

Keywords

  • Cotton cropping
  • Conventional intensive tillage
  • Minimum tillage
  • Modelling soil organic carbon storage
  • RothC
  • Long-term experiments
  • Cracking clay soil
  • Management-Practices
  • Climate-change
  • No-Tillage
  • Dynamics
  • Rotation
  • Sequestration
  • Matter
  • Datasets

Cite this

Modelling soil organic carbon storage with RothC in irrigated Vertisols under cotton cropping systems in the sub-tropics. / Senapati, Nimai; Hulugalle, Nilantha R.; Smith, Pete; Wilson, Brian R.; Yeluripati, Jagadeesh B.; Daniel, Heiko; Ghosh, Subhadip; Lockwood, Peter.

In: Soil & Tillage Research, Vol. 143, 11.2014, p. 38-49.

Research output: Contribution to journalArticle

Senapati, Nimai ; Hulugalle, Nilantha R. ; Smith, Pete ; Wilson, Brian R. ; Yeluripati, Jagadeesh B. ; Daniel, Heiko ; Ghosh, Subhadip ; Lockwood, Peter. / Modelling soil organic carbon storage with RothC in irrigated Vertisols under cotton cropping systems in the sub-tropics. In: Soil & Tillage Research. 2014 ; Vol. 143. pp. 38-49.
@article{aef0771152ac4969890532123a1409e1,
title = "Modelling soil organic carbon storage with RothC in irrigated Vertisols under cotton cropping systems in the sub-tropics",
abstract = "The performance of the Rothamsted Carbon Model (RothC) in simulating soil carbon (SOC) storage in cotton based cropping systems under different tillage management practices on an irrigated Vertisol in semi-arid, subtropics was evaluated using data from a long-term (1994-2012) cotton cropping systems experiment near Narrabri in north-western New South Wales, Australia. The experimental treatments were continuous cotton/conventional tillage (CC/CT), continuous cotton/minimum tillage (CC/MT), and cotton-wheat (Triticum aestivum L.) rotation/minimum tillage (CW/MT). Soil carbon (C) input was calculated by published functions that relate crop yield to soil C input. Measured values showed a loss in SOC of 34{\%}, 24{\%} and 31{\%} of the initial SOC storages within 19 years (1994-2012) under CC/CT, CC/MT, and CW/MT, respectively. RothC satisfactorily simulated the dynamics of SOC in cotton based cropping systems under minimum tillage (CC/MT and CW/MT), whereas the model performance was poor under intensive conventional tillage (CC/CT). The model RothC overestimated SOC storage in cotton cropping under conventional intensive tillage management system. This over estimation could not be attributed to the overestimation of soil C inputs, or errors in initial quantification of SOC pools for model initialization, or the ratio of incoming decomposable plant materials to resistant plant materials. Among other different factors affecting SOC dynamics and its modelling under intensive tillage in tropics and sub-tropics, we conclude that factors for tillage and soil erosion might be needed when modelling SOC dynamics using RothC under intensive tillage management system in the tropics and the sub-tropics. (C) 2014 Elsevier B.V. All rights reserved.",
keywords = "Cotton cropping, Conventional intensive tillage, Minimum tillage, Modelling soil organic carbon storage, RothC, Long-term experiments, Cracking clay soil, Management-Practices, Climate-change, No-Tillage, Dynamics, Rotation, Sequestration, Matter, Datasets",
author = "Nimai Senapati and Hulugalle, {Nilantha R.} and Pete Smith and Wilson, {Brian R.} and Yeluripati, {Jagadeesh B.} and Heiko Daniel and Subhadip Ghosh and Peter Lockwood",
note = "Acknowledgments: Funding for the field experiment at the Australian Cotton Research Institute (ACRI) was provided by the Australian Cotton Cooperative Research Centre (CRC), Cotton Catchment Communities CRC, and Cotton Research and Development Corporation of Australia. We would like to thank two anonymous reviewers and editor for their constructive comments to improve the manuscript.",
year = "2014",
month = "11",
doi = "10.1016/j.still.2014.05.009",
language = "English",
volume = "143",
pages = "38--49",
journal = "Soil & Tillage Research",
issn = "0167-1987",
publisher = "Elsevier Science B. V.",

}

TY - JOUR

T1 - Modelling soil organic carbon storage with RothC in irrigated Vertisols under cotton cropping systems in the sub-tropics

AU - Senapati, Nimai

AU - Hulugalle, Nilantha R.

AU - Smith, Pete

AU - Wilson, Brian R.

AU - Yeluripati, Jagadeesh B.

AU - Daniel, Heiko

AU - Ghosh, Subhadip

AU - Lockwood, Peter

N1 - Acknowledgments: Funding for the field experiment at the Australian Cotton Research Institute (ACRI) was provided by the Australian Cotton Cooperative Research Centre (CRC), Cotton Catchment Communities CRC, and Cotton Research and Development Corporation of Australia. We would like to thank two anonymous reviewers and editor for their constructive comments to improve the manuscript.

PY - 2014/11

Y1 - 2014/11

N2 - The performance of the Rothamsted Carbon Model (RothC) in simulating soil carbon (SOC) storage in cotton based cropping systems under different tillage management practices on an irrigated Vertisol in semi-arid, subtropics was evaluated using data from a long-term (1994-2012) cotton cropping systems experiment near Narrabri in north-western New South Wales, Australia. The experimental treatments were continuous cotton/conventional tillage (CC/CT), continuous cotton/minimum tillage (CC/MT), and cotton-wheat (Triticum aestivum L.) rotation/minimum tillage (CW/MT). Soil carbon (C) input was calculated by published functions that relate crop yield to soil C input. Measured values showed a loss in SOC of 34%, 24% and 31% of the initial SOC storages within 19 years (1994-2012) under CC/CT, CC/MT, and CW/MT, respectively. RothC satisfactorily simulated the dynamics of SOC in cotton based cropping systems under minimum tillage (CC/MT and CW/MT), whereas the model performance was poor under intensive conventional tillage (CC/CT). The model RothC overestimated SOC storage in cotton cropping under conventional intensive tillage management system. This over estimation could not be attributed to the overestimation of soil C inputs, or errors in initial quantification of SOC pools for model initialization, or the ratio of incoming decomposable plant materials to resistant plant materials. Among other different factors affecting SOC dynamics and its modelling under intensive tillage in tropics and sub-tropics, we conclude that factors for tillage and soil erosion might be needed when modelling SOC dynamics using RothC under intensive tillage management system in the tropics and the sub-tropics. (C) 2014 Elsevier B.V. All rights reserved.

AB - The performance of the Rothamsted Carbon Model (RothC) in simulating soil carbon (SOC) storage in cotton based cropping systems under different tillage management practices on an irrigated Vertisol in semi-arid, subtropics was evaluated using data from a long-term (1994-2012) cotton cropping systems experiment near Narrabri in north-western New South Wales, Australia. The experimental treatments were continuous cotton/conventional tillage (CC/CT), continuous cotton/minimum tillage (CC/MT), and cotton-wheat (Triticum aestivum L.) rotation/minimum tillage (CW/MT). Soil carbon (C) input was calculated by published functions that relate crop yield to soil C input. Measured values showed a loss in SOC of 34%, 24% and 31% of the initial SOC storages within 19 years (1994-2012) under CC/CT, CC/MT, and CW/MT, respectively. RothC satisfactorily simulated the dynamics of SOC in cotton based cropping systems under minimum tillage (CC/MT and CW/MT), whereas the model performance was poor under intensive conventional tillage (CC/CT). The model RothC overestimated SOC storage in cotton cropping under conventional intensive tillage management system. This over estimation could not be attributed to the overestimation of soil C inputs, or errors in initial quantification of SOC pools for model initialization, or the ratio of incoming decomposable plant materials to resistant plant materials. Among other different factors affecting SOC dynamics and its modelling under intensive tillage in tropics and sub-tropics, we conclude that factors for tillage and soil erosion might be needed when modelling SOC dynamics using RothC under intensive tillage management system in the tropics and the sub-tropics. (C) 2014 Elsevier B.V. All rights reserved.

KW - Cotton cropping

KW - Conventional intensive tillage

KW - Minimum tillage

KW - Modelling soil organic carbon storage

KW - RothC

KW - Long-term experiments

KW - Cracking clay soil

KW - Management-Practices

KW - Climate-change

KW - No-Tillage

KW - Dynamics

KW - Rotation

KW - Sequestration

KW - Matter

KW - Datasets

U2 - 10.1016/j.still.2014.05.009

DO - 10.1016/j.still.2014.05.009

M3 - Article

VL - 143

SP - 38

EP - 49

JO - Soil & Tillage Research

JF - Soil & Tillage Research

SN - 0167-1987

ER -