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Author(s): GRUNWALD, S.; MYERS, D.; VASQUES, G. de M.; XIONG, X.; ROSS, C.; CHAIKAEW, P.; STOPPE, A.; KNOX, N.; COMERFORD, N.; HARRIS, W.

Profound shifts have occurred over the last three centuries in which human actions have become the main driver to global environmental change. In this new epoch, the Anthropocene, human-driven changes... ...

Repository: BDPA     Publication year: 2011

Author(s): VASQUES, G. de M.; GRUNWALD, S.; MYERS, D. B.

Understanding the causes of spatial variation of soil carbon (C) has important implications for regional and global C dynamics studies. Soil C predictive models can identify sources of C variation, bu... ...

Repository: BDPA     Publication year: 2012

Author(s): PADILHA, M. C. C.; VICENTE, L. E.; DEMATTÊ, J. A. M.; LOEBMANN, D. G. dos S. W.; URBINA SALAZAR, D.; KOGA-VICENTE, A.; ARAUJO, L. S. de; MANZATTO, C. V.

Abstract: The quantification of soil organic carbon (SOC) is essential to agriculture and sustainable use of the land. However, there are difficulties to estimate it in large areas due to high cost of... ...

Repository: BDPA     Publication year: 2019

Author(s): RIBEIRO, J. M.; FREITAS, I. C. de; BRITO, B. G. S. e; FERNANDES, L. A.; LEITE, L. F. C.; BARBOSA, D. L. de A.; SANTOS, M. V.; CERRI, C. E. P.; FRAZÃO, L. A.

Agrosilvopastoral systems have been used as sustainable production models that can promote soil organic carbon (SOC) storage. However, there are no simulation studies with the Century model to estimat... ...

Repository: BDPA     Publication year: 2023

Author(s): OLIVEIRA, J. M.; GOLLANY, H. T.; POLUMSKY, R. W.; MADARI, B. E.; LEITE, L. F. C.; MACHADO, P. L. O. A.; CARVALHO, M. T. M.

Land degradation and reduction in productivity have resulted in losses of soil organic carbon (SOC) in agricultural areas in Brazil. Our objectives were to 1) evaluate the predictive performance of CQ... ...

Repository: BDPA     Publication year: 2022

Author(s): STEHLICK, A.; BARIONI, A. E.; BOAS, P. R. V.; BARIONI, L. G.

In this work we propose such a representation for the total carbon trajectory whose generality embraces implicitly the mechanism of models as Century, RothC and CQESTR.

Repository: BDPA     Publication year: 2021

Author(s): BIASE, A. G.; AZEVEDO, I. F. S.; CHAVES, S. S. de F.; MELO, M. N.; DIAS, C. T. dos S.; MARTORANO, L. G.; CAMARGO, P. B. de; SILVA, A. R.; REICHARDT, K.

This study aimed to i) apply the basis of the nonlinear models theory with least squares method using sandwich estimators to a dataset formed by the C content along the soil profile in the Crop-Livest... ...

Repository: BDPA     Publication year: 2016

Author(s): LEITE, L. F. C.; DORAISWAMY, P. C.

CQESTR simulates the effect of management practices on soil organic carbon (SOC) stocks. The beta version of the model had been calibrated and validated for temperate regions. Our objective was to eva... ...

Repository: BDPA     Publication year: 2007

Author(s): SANTOS, W. P. dos; VAZ, C. M. P.; MARTIN NETO, L.; ANSELMI, A.; TOMASELLA, J.; COSTA, F. de S.; ALBUQUERQUE, J. A.; LIER, Q. de J. van; GALBIERI, R.; PERINA, F. J.

The present study aims to develop pedotransfer functions for estimating ?b using stepwise multiple linear regression applied to soil properties from available databases, which are considered suitable... ...

Repository: BDPA     Publication year: 2025

Author(s): MENDONÇA-SANTOS, M. de L.; SANTOS, H. G. dos; COELHO, M. R.

A soil database with 431 soil profiles of Rio de Janeiro State was used in the scope of a research project entitled "Quantifying the magnitude, spatial distribution and organic carbon in soils of Rio... ...

Repository: BDPA     Publication year: 2008

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