Simulating trends in soil organic carbon in long-term experiments using the century model
Description
This paper describes Century Soil Organic Matter (SOM) Model simulations of seven long-term data sets that are the subject of this special issue. We found that Century successfully simulates SOM C across a variety of land use and climate types. Simulations of SOM were most successful in grass and crop systems. This exercise highlights a structural limitation of Century in simulating SOM in a forest with a developed litter layer. Simulations of tree biomass distributions, however, were generally successful. The model failed to capture extreme values of yield and N offtake, although annual averages were quite similar between observations and simulations, leading to reasonable estimates of SOM C. Average yields and SOM were generally higher in amended treatments or rotations including an N-fixing component such as alfalfa. The model successfully predicted SOM dynamics across climates, land use types, and treatments. This suggests that Century is a useful tool for ecosystem studies, particularly those focused on SOM dynamics.
Impact and interest:
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ID Code: | 229233 | ||||
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Item Type: | Contribution to Journal (Journal Article) | ||||
Refereed: | Yes | ||||
ORCID iD: |
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Measurements or Duration: | 16 pages | ||||
Keywords: | CENTURY model, Long-term experiments, Model comparison, Soil organic matter | ||||
DOI: | 10.1016/S0016-7061(97)00082-7 | ||||
ISSN: | 0016-7061 | ||||
Pure ID: | 107943072 | ||||
Divisions: | Past > QUT Faculties & Divisions > Faculty of Education Past > QUT Faculties & Divisions > Faculty of Health Current > QUT Faculties and Divisions > Faculty of Science Current > Schools > School of Biology & Environmental Science Current > Schools > School of Teacher Education & Leadership Current > Schools > School of Psychology & Counselling |
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Copyright Owner: | Consult author(s) regarding copyright matters | ||||
Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||
Deposited On: | 01 Apr 2022 05:30 | ||||
Last Modified: | 19 Jul 2024 10:56 |
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