62 results

Native and exotic tree leaves litter contributions to soil organic matter formation in revegetation strategies

Charles Munro ORCID logo , Vanessa Maria de Souza Barros ORCID logo , Jônatas Pedro da Silva ORCID logo , Paulo Henrique Ferreira de Brito ORCID logo , José Ferreira Lustosa Filho ORCID logo , Rafael da Silva Teixeira ORCID logo , [...]

16/Jun/2025

ABSTRACT The use of native and exotic species in the reforestation of degraded areas has been considered an important strategy to improve soil quality. However, there is still scarce information about which species are more efficient for soil organic matter (SOM) formation. This study aimed to evaluate the decomposition of leguminous and non-leguminous tree litter, its impact on light organic matter (LOM), particulate organic matter (POM), and mineral-associated organic matter (MAOM) dynamics, and consequently, SOM formation efficiency. Leaf litter from […]

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Soil organic carbon sequestration under Araucaria angustifolia plantations but not under exotic tree species on a mountain range

Yuri Lopes Zinn ORCID logo , Ricardo Cardoso Fialho ORCID logo , Carlos Alberto Silva ORCID logo

19/Jun/2024

ABSTRACT Plantation forests can be efficient C sinks in biomass and soil organic carbon (SOC), but the latter depends on many factors, including climate. Tropical humid, mountain areas have cooler temperatures, slowing microbial decomposition, and thus can store considerable SOC. However, the effects of forest plantations on SOC of these montane areas are still poorly studied. Here, we aimed to assess changes in SOC, and related soil properties, after conversion of native rainforest to plantations of five tree species, with […]

Visual Abstract

Agrosilvopastoral system as a potential model for increasing soil carbon stocks: a century model approach

Juliana Martins Ribeiro ORCID logo , Igor Costa de Freitas ORCID logo , Betânia Guedes Souza e Brito ORCID logo , Luiz Arnaldo Fernandes ORCID logo , Luiz Fernando Carvalho Leite ORCID logo , Demerson Luiz de Almeida Barbosa ORCID logo , [...]

04/Jul/2023

ABSTRACT 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 estimate the SOC accumulation capacity in the long term, analyzing the effects of management and climate change in integrated crop-livestock-forest (ICLF) systems. This study aimed to simulate soil C dynamics in two chronosequences of land-use composed of native vegetation (NV), degraded pasture (DPA) and ICLF system in the Cerrado of Minas […]

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Climate-smart agriculture and soil C sequestration in Brazilian Cerrado: a systematic review

Dener Márcio da Silva Oliveira ORCID logo , Rose Luiza Moraes Tavares ORCID logo , Arcângelo Loss ORCID logo , Beata Emoke Madari ORCID logo , Carlos Eduardo Pellegrino Cerri ORCID logo , Bruno Jose Rodrigues Alves ORCID logo , [...]

06/Mar/2023

ABSTRACT Climate-smart agriculture (CSA) practices, mainly no-tillage (NT), cover cropping (CC), soil fertilization with organic amendments (OA), and crop-livestock (CL) and crop-livestock-forestry (CLF) systems, has been widely adopted in areas from Brazilian Cerrado. The CSA may partly offset former soil C losses and contribute to climate change mitigation. However, contradictory findings brought uncertainties about the effect of CSA on soil C. Here, by a systematic review of 87 papers and using 621 data pairs, we provided a pervasive biome-scale analysis […]

Agroforestry system improves soil carbon and nitrogen stocks in depth after land-use changes in the Brazilian semi-arid region

Rafael Gonçalves Tonucci ORCID logo , Renato Falconeres Vogado ORCID logo , Rodrigo Dias Silva ORCID logo , Roberto Cláudio Fernandes Franco Pompeu ORCID logo , Melissa Oda-Souza ORCID logo , Henrique Antunes de Souza ORCID logo

06/Mar/2023

ABSTRACT Agroforestry systems have the potential to increase soil organic matter, with effects on soil carbon and nitrogen contents, but information on the application of these systems in semi-arid regions is still scarce. This study aimed to analyze soil carbon and nitrogen stocks in the conversion of native forest from the Caatinga Biome into integrated agriculture systems in the Brazilian semi-arid region. We evaluated the following management systems in the Haplic Inceptisol (Cambissolo Háplico eutrófico): (1) Intercropping area, cultivated with […]

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Contribution of Eucalyptus Harvest Residues and Nitrogen Fertilization to Carbon Stabilization in Ultisols of Southern Bahia

Fernanda Cristina Caparelli Oliveira, Ivo Ribeiro Silva, Gabriel William Dias Ferreira, Emanuelle Mercês Barros Soares, Sérgio Ricardo Silva, Eulene Francisco Silva

19/Jan/2018

ABSTRACT: Eucalyptus forests in southern Bahia (BA) are planted in soils with a sandy surface layer and humid tropical climate, conditions that lead to soil carbon (C) decomposition. Recent studies have shown that nitrogen (N) may be important for soil C stabilization. The aim of this study was to evaluate the contribution of Eucalyptus harvest residues and nitrogen fertilization to C stabilization in Ultisols of southern BA. The experiment was conducted in Eucalyptus clonal plantations cultivated in two regions of […]

Carbon and Nitrogen Stocks and Humic Fractions in Brazilian Organosols

Gustavo Souza Valladares, Marcos Gervasio Pereira, Vinícius de Melo Benites, Lúcia Helena Cunha dos Anjos, Adierson Gilvani Ebeling, Roni Fernandes Guareschi

17/Oct/2016

ABSTRACT Despite limited geographic expression of Organosols in Brazil, their high carbon storage capacity and natural environmental vulnerability justifies further studies on C and N stocks in these soils and their relationship to the nature of organic matter. Evaluation of physical and chemical properties of organic soils and their ability to store C is important so as to develop sustainable management practices for their preservation. The objectives of the study were to measure the total organic carbon stock (OCst), total […]

Successive Cultivation of Soybean/Corn Intercropped with Urochloa brizantha topdressed with Nitrogen

Danilo Gomes Fortes, Edgard Jardim Rosa, Yara Brito Chaim Jardim Rosa, Fábio Régis de Souza, Evandro Gelain

23/Aug/2016

ABSTRACT Corn intercropped with Urochloa brizantha (Syn, Brachiaria brizantha) has been indicated as a suitable alternative management practice for rational land use in crop-livestock production systems in the Cerrado region of Brazil. An experiment was carried out in Maracaju, MS, Brazil to evaluate the effect of sequences of soybean/second-crop corn systems intercropped with Urochloa brizantha and the effects of forms of nitrogen on soil chemical and physical properties. A randomized block experimental design was used with four replications; treatments were […]

Changes in Soil Organic Carbon and Nitrogen Stocks in Long-Term Experiments in Southern Brazil Simulated with Century 4.5

Mirla Andrade Weber, João Mielniczukand, Carlos Gustavo Tornquist

12/May/2016

ABSTRACT The Century model has successfully simulated soil organic matter dynamics in many agroecosystems. However, initial applications in southern Brazil produced mixed results. The objective of this study was to calibrate and validate Century 4.5 to simulate soil carbon (C) and nitrogen (N) dynamics under diverse soil management practices in subtropical Brazil. Soil C and N data from two long-term experiments established on a degraded Acrisol in the early 1980s were used. Treatments were conventional or no-tillage; grass or grass/legume […]

Carbon and Nitrogen Dynamics under Eucalyptus Plantations in Southern Brazil

Charlote Wink, Dalvan José Reinert, Carlos Gustavo Tornquist, Ivo Ribeiro Silva

01/Dec/2015

ABSTRACT The expansion of eucalyptus plantations in southern Brazil, especially over regions with natural grasslands, which occurred in the last decade potentially changes total organic carbon and nitrogen in soil. The aim of this study was to test the Century model 4.5 in the simulation of changes in inventories of TOC and TN in the surface layer (0.0-0.2 m) soil in Eucalyptus sp. com different ages in three municipalities in Rio Grande do Sul State, Brazil. Areas adjacent to grasslands […]

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