Calibration of the century, apsim and ndicea models of decomposition and n mineralization of plant residues in the humid tropics
The aim of this study was to calibrate the CENTURY, APSIM and NDICEA simulation models for estimating decomposition and N mineralization rates of plant organic materials (Arachis pintoi, Calopogonium mucunoides, Stizolobium aterrimum, Stylosanthes guyanensis) for 360 days in the Atlantic rainforest...
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Sociedade Brasileira de Ciência do Solo
2011-06-01
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doaj-b83f5fa6fc9f4433bd4dff6a14e79e6b2021-01-02T05:48:14ZengSociedade Brasileira de Ciência do SoloRevista Brasileira de Ciência do Solo1806-96572011-06-0135391792810.1590/S0100-06832011000300026S0100-06832011000300026Calibration of the century, apsim and ndicea models of decomposition and n mineralization of plant residues in the humid tropicsAlexandre Ferreira do Nascimento0Eduardo de Sá Mendonça1Luiz Fernando Carvalho Leite2Júlio Cesar Lima Neves3Universidade de São PauloUniversidade Federal do Espírito SantoEmbrapaUniversidade Federal de ViçosaThe aim of this study was to calibrate the CENTURY, APSIM and NDICEA simulation models for estimating decomposition and N mineralization rates of plant organic materials (Arachis pintoi, Calopogonium mucunoides, Stizolobium aterrimum, Stylosanthes guyanensis) for 360 days in the Atlantic rainforest bioma of Brazil. The models´ default settings overestimated the decomposition and N-mineralization of plant residues, underlining the fact that the models must be calibrated for use under tropical conditions. For example, the APSIM model simulated the decomposition of the Stizolobium aterrimum and Calopogonium mucunoides residues with an error rate of 37.62 and 48.23 %, respectively, by comparison with the observed data, and was the least accurate model in the absence of calibration. At the default settings, the NDICEA model produced an error rate of 10.46 and 14.46 % and the CENTURY model, 21.42 and 31.84 %, respectively, for Stizolobium aterrimum and Calopogonium mucunoides residue decomposition. After calibration, the models showed a high level of accuracy in estimating decomposition and N- mineralization, with an error rate of less than 20 %. The calibrated NDICEA model showed the highest level of accuracy, followed by the APSIM and CENTURY. All models performed poorly in the first few months of decomposition and N-mineralization, indicating the need of an additional parameter for initial microorganism growth on the residues that would take the effect of leaching due to rainfall into account.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000300026&lng=en&tlng=enleguminosasciclagem de nutrientesagricultura orgânicaprodução vegetal |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Alexandre Ferreira do Nascimento Eduardo de Sá Mendonça Luiz Fernando Carvalho Leite Júlio Cesar Lima Neves |
spellingShingle |
Alexandre Ferreira do Nascimento Eduardo de Sá Mendonça Luiz Fernando Carvalho Leite Júlio Cesar Lima Neves Calibration of the century, apsim and ndicea models of decomposition and n mineralization of plant residues in the humid tropics Revista Brasileira de Ciência do Solo leguminosas ciclagem de nutrientes agricultura orgânica produção vegetal |
author_facet |
Alexandre Ferreira do Nascimento Eduardo de Sá Mendonça Luiz Fernando Carvalho Leite Júlio Cesar Lima Neves |
author_sort |
Alexandre Ferreira do Nascimento |
title |
Calibration of the century, apsim and ndicea models of decomposition and n mineralization of plant residues in the humid tropics |
title_short |
Calibration of the century, apsim and ndicea models of decomposition and n mineralization of plant residues in the humid tropics |
title_full |
Calibration of the century, apsim and ndicea models of decomposition and n mineralization of plant residues in the humid tropics |
title_fullStr |
Calibration of the century, apsim and ndicea models of decomposition and n mineralization of plant residues in the humid tropics |
title_full_unstemmed |
Calibration of the century, apsim and ndicea models of decomposition and n mineralization of plant residues in the humid tropics |
title_sort |
calibration of the century, apsim and ndicea models of decomposition and n mineralization of plant residues in the humid tropics |
publisher |
Sociedade Brasileira de Ciência do Solo |
series |
Revista Brasileira de Ciência do Solo |
issn |
1806-9657 |
publishDate |
2011-06-01 |
description |
The aim of this study was to calibrate the CENTURY, APSIM and NDICEA simulation models for estimating decomposition and N mineralization rates of plant organic materials (Arachis pintoi, Calopogonium mucunoides, Stizolobium aterrimum, Stylosanthes guyanensis) for 360 days in the Atlantic rainforest bioma of Brazil. The models´ default settings overestimated the decomposition and N-mineralization of plant residues, underlining the fact that the models must be calibrated for use under tropical conditions. For example, the APSIM model simulated the decomposition of the Stizolobium aterrimum and Calopogonium mucunoides residues with an error rate of 37.62 and 48.23 %, respectively, by comparison with the observed data, and was the least accurate model in the absence of calibration. At the default settings, the NDICEA model produced an error rate of 10.46 and 14.46 % and the CENTURY model, 21.42 and 31.84 %, respectively, for Stizolobium aterrimum and Calopogonium mucunoides residue decomposition. After calibration, the models showed a high level of accuracy in estimating decomposition and N- mineralization, with an error rate of less than 20 %. The calibrated NDICEA model showed the highest level of accuracy, followed by the APSIM and CENTURY. All models performed poorly in the first few months of decomposition and N-mineralization, indicating the need of an additional parameter for initial microorganism growth on the residues that would take the effect of leaching due to rainfall into account. |
topic |
leguminosas ciclagem de nutrientes agricultura orgânica produção vegetal |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000300026&lng=en&tlng=en |
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