Modeling changes in organic carbon stocks for distinct soils in southeastern brazil after four eucalyptus rotations using the century model

Lima, Augusto Miguel Nascimento; Silva, Ivo Ribeiro da; Stape, Jose Luis; Mendonça, E. S.; Novais, Roberto Ferreira; Barros, Nairam Félix de; Neves, Júlio César Lima; Paul, Keryn I.; Schulthais, Fernanda; Polglase, P. J.; Raison, John K.; Soares, Emanuelle Mercês Barros

doi:10.1590/s0100-06832011000300018

Cited by 10 publications

(5 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The soil texture and organic carbon properties were taken from previous studies [ Barreto et al ., ; Lima et al ., ; Hickmann et al ., ], and the hydrologic soil groups [classification of runoff potential for application of “Runoff Curve Number” method, USDA , ] from Sartori et al . [].…”

Section: Methodsmentioning

confidence: 99%

A blue/green water‐based accounting framework for assessment of water security

Rodrigues

Gupta

Mendiondo

2014

Water Resources Research

112

View full text Add to dashboard Cite

A comprehensive assessment of water security can incorporate several water-related concepts, while accounting for Blue and Green Water (BW and GW) types defined in accordance with the hydrological processes involved. Here we demonstrate how a quantitative analysis of provision probability and use of BW and GW can be conducted, so as to provide indicators of water scarcity and vulnerability at the basin level. To illustrate the approach, we use the Soil and Water Assessment Tool (SWAT) to model the hydrology of an agricultural basin (291 km 2 ) within the Cantareira Water Supply System in Brazil. To provide a more comprehensive basis for decision making, we analyze the BW and GW-Footprint components against probabilistic levels (50th and 30th percentile) of freshwater availability for human activities, during a 23 year period. Several contrasting situations of BW provision are distinguished, using different hydrological-based methodologies for specifying monthly Environmental Flow Requirements (EFRs), and the risk of natural EFR violation is evaluated by use of a freshwater provision index. Our results reveal clear spatial and temporal patterns of water scarcity and vulnerability levels within the basin. Taking into account conservation targets for the basin, it appears that the more restrictive EFR methods are more appropriate than the method currently employed at the study basin. The blue/green water-based accounting framework developed here provides a useful integration of hydrologic, ecosystem and human needs information on a monthly basis, thereby improving our understanding of how and where water-related threats to human and aquatic ecosystem security can arise.

show abstract

Section: Methodsmentioning

confidence: 99%

A blue/green water‐based accounting framework for assessment of water security

Rodrigues

Gupta

Mendiondo

2014

Water Resources Research

112

View full text Add to dashboard Cite

show abstract

“…Para a RQEM, pode-se afirmar que o estoque de COT do solo simulado se encontra dentro do intervalo de confiança aceitável (RQME 95 % ) para as plantações de eucalipto. Lima et al (2011) também registraram uma boa estimativa para os valores simulados aos observados do estoque de COT no solo em plantações de eucalipto pelo modelo Century 4.0, em Minas Gerais.…”

Section: Validação Do Modelo Century 45unclassified

“…(Cerri et al, 2004;2007a,b). Na conversão de áreas nativas em plantações comerciais de eucalipto, o emprego do modelo Century na simulação do estoque de C é mais restrito, como retratado por Lima et al (2011), em Minas Gerais. Portanto, pela abrangência científica do emprego do modelo em diferentes cenários cultivados no Brasil e expansão do mercado florestal, constatou-se uma carência de dados conclusivos sobre a dinâmica do C e N nas diferentes regiões do país, o que reafirma o interesse e a necessidade em quantificar melhor esses estoques associados a plantios comerciais de Eucalyptus no contexto do bioma Pampa, carecendo do ajustamento do modelo a essa realidade.…”

Section: Introductionunclassified

Dinâmica do Carbono e Nitrogênio em Plantações de Eucalipto no Rio Grande do Sul

Wink

Reinert

Tornquist

et al. 2015

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

resumo a expansão de plantações de eucalipto no sul do brasil na última década, especialmente em áreas com campos naturais, potencialmente altera a dinâmica do carbono orgânico total (Cot) e nitrogênio total (nt) do solo. objetivou-se testar o modelo Century 4.5 na simulação das mudanças de estoques de COT e NT na camada superficial (0,0-0,2 m) do solo, em povoamentos de Eucalyptus sp. com diferentes idades em três municípios no rs. Áreas adjacentes com campos naturais foram usadas para estimar os estoques originais de Cot e nt desses locais. o modelo Century 4.5 apresentou bom ajuste na simulação do estoque de Cot no solo, com valores similares entre os simulados e observados, podendo ser empregado na simulação da dinâmica da matéria orgânica no campo natural e nas plantações de eucalipto dos diferentes locais estudados. Para o estoque de nt do solo, mesmo com as alterações de parâmetros, o modelo Century 4.5 não conseguiu simular esse estoque do solo com eficácia e acurácia estatística aceitável. Palavras-chave: matéria orgânica do solo, modelo Century, silvicultura.

show abstract

“…Data required for the model, including the digital elevation model (DEM), soil properties, vegetation cover, meteorological and hydrological time series were obtained from several sources as detailed in Table 2.2. The soil texture and organic carbon properties were taken from previous studies (Barreto et al 2008;Lima et al 2011;Hickmann et al 2011), and the hydrologic soil groups (classification of runoff potential for application of "Runoff Curve Number" method, USDA, 1986) from Sartori et al (2005). The relief is undulating and has the following distribution: 0- (Logsdon and Chaubey, 2013).…”

Section: Model Data Input and Processingmentioning

confidence: 99%

Assessment of water security using conceptual, deterministic and stochastic frameworks

Rodrigues¹

View full text Add to dashboard Cite

First, my deepest gratitude to God, the bible's author, who gives me hope and strength day by day. I know is difficult to express my huge gratitude to all friends and colleagues who directly and indirectly supported me during my doctorate period, but I am going to try using few words. I hope I will not forget anyone! I thank to Professor Eduardo Mario Mendiondo, my advisor, for giving me good opportunities to grow up personally and professionally, including my participation in both Graduate Programs in Brazil and the USA. Then, I thank to Professor Hoshin V. Gupta, my supervisor at The University of Arizona, who gave me the honor to work with and impressive lessons of being a top researcher, collaborator and a mentor. My very special thank to Danielle A. Bressiani, my lab colleague, that was (and is) an essential friend, with whom I shared life issues, technical discussions, and I could enjoy the advice from the "SWAT Queen"! I am also grateful for all other precious colleagues of my research group (NIBH) at University of São Paulo, who made my workdays much better, and sometimes funnier, such as:

show abstract

Modeling changes in organic carbon stocks for distinct soils in southeastern brazil after four eucalyptus rotations using the century model

Cited by 10 publications

References 58 publications

A blue/green water‐based accounting framework for assessment of water security

A blue/green water‐based accounting framework for assessment of water security

Dinâmica do Carbono e Nitrogênio em Plantações de Eucalipto no Rio Grande do Sul

Assessment of water security using conceptual, deterministic and stochastic frameworks

Contact Info

Product

Resources

About