142 results

Modeling the effect of terracing on runoff control in a rural catchment in southern Brazil

Larissa Werle ORCID logo , Jean Paolo Gomes Minella ORCID logo , Gustavo Henrique Merten ORCID logo , Douglas Rodrigo Kaiser ORCID logo , Alexandre Schlesner ORCID logo , Alice Prates Bisso Dambroz ORCID logo , [...]

16/Jun/2025

ABSTRACT Extreme weather events, such as heavy rains and droughts, necessitate the rapid adaptation of production systems to prevent the degradation of natural resources and to maximize production potential. Defining adaptive practices requires an in-depth understanding of the factors that control the formation and propagation of surface runoff and the identification of specific practices tailored to each location. No-till system, coupled with complementary storm runoff management practices, is effective in controlling surface runoff and related processes. However, the planning of […]

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Soil organic carbon stock in a peat-wetland ecosystem in the Cerrado biome under different land covers and its role in water storage

Ianna Santana Souza ORCID logo , Ingrid Horák-Terra ORCID logo , Fabrício da Silva Terra ORCID logo , Uidemar Morais Barral ORCID logo , Hudson Rosemberg Poceschi e Campos ORCID logo , Leonardo Pereira Silva Costa ORCID logo , [...]

01/Apr/2025

ABSTRACT Wetlands provide important ecosystem services, including climate regulation through carbon sequestration and water storage. Identifying and protecting wetlands is a potentially significant opportunity for current global mitigation efforts. Cerrado wetlands commonly contain carbon-rich soils (peat); however, these environments have been neglected due to lack of knowledge on their characteristics and behaviors. Obtaining data in remote regions using a detailed sampling approach to characterize the organic carbon accumulation in these environments is extremely necessary. In this study, soil samples from […]

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Cover crops in between-rows of Coffea canephora for reduction of soil erosion

Gustavo Soares de Souza ORCID logo , Mateus Lopes Domiciano ORCID logo , Gildásio Ribeiro Sarnaglia ORCID logo , Irany Rodrigues Pretti ORCID logo , Petterson Teixeira Gonçalves ORCID logo , Marciano Kaulz ORCID logo , [...]

11/Mar/2025

ABSTRACT Soil erosion in tropical environments causes environmental, social and economic damage. Canephora coffee crops are impacted by soil erosion and testing alternatives to mitigate this damage is a current need. This study aimed to evaluate the losses of sediment, organic carbon, nutrients and surface runoff caused by water erosion in between-rows spacing of Coffea canephora Pierre ex A. Froehner plants in management with and without cover crops, and the effect of the intensity of rains on sediment loss and […]

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Automatic measurement of surface runoff at the plot scale

Lucas Raimundo Rauber ORCID logo , Dalvan José Reinert ORCID logo , Paulo Ivonir Gubiani ORCID logo , Kelvin Salbego Nunes ORCID logo , Micael Stolben Mallman ORCID logo

10/Feb/2025

ABSTRACT Although the hydrological importance of water infiltration into the soil and surface runoff is well known, manual measurement of these processes, especially at the plot and hillslope scales, is laborious and requires a trained team. This study aimed to develop prototypes with the tipping bucket principle for the automatic monitoring of surface runoff at a plot scale (14.5 × 3 m). In total, 18 prototypes were built and installed in an experiment with different soil covers. Aspects of the […]

Coconut residues increase light fraction of organic matter and water retention in semi-arid sandy soil under irrigated cultivation

Isnara Evelin Barbosa da Silva ORCID logo , Magnus Dall’Igna Deon ORCID logo , Davi José Silva ORCID logo , Francisco Alisson da Silva Xavier ORCID logo , Ana Paula Guimarães Santos ORCID logo , Diana Signor ORCID logo

16/Dec/2024

ABSTRACT Coconut palm cultivation is associated with the generation of a large amount of residues, mainly from coconut shells, and their utilization in agriculture can represent an opportunity in the context of circular economy and climate change. This study aimed to determine the effect of coconut shell deposition on carbon (C) stocks, organic matter quality, and soil water retention in coconut palm cultivation in the Brazilian semi-arid region. The study was conducted in a commercial coconut palm cultivation area in […]

Cropping and soil management systems effects on soil organic matter fractions in diversified agricultural fields in the Cerrado

Antonino José Jacques Gambôa Fernandez de Oliveira Netto ORCID logo , Lucas Medeiros Fagundes ORCID logo , Luiz Alberto da Silva Rodrigues Pinto ORCID logo , Emerson Trogello ORCID logo , Marcos Gervasio Pereira ORCID logo

25/Nov/2024

ABSTRACT Soil organic matter (SOM) dynamics can be significantly influenced by various cultivation practices, particularly under environmental and edaphic conditions that enhance and accelerate the transformations of organic materials such as straw, root biomass, and organic fertilizers. This study aimed to evaluate the impact of different cultivation and soil management systems on SOM fractions in agricultural areas of the Cerrado Goiano region. The research was conducted across three areas with diverse production systems: 1) BV area, including soybean monoculture (SM01), […]

Cover crops influence the physical hydric quality of a tropical sandy soil under no-tillage cotton cropping

Pedro Luan Ferreira da Silva ORCID logo , Cássio Antonio Tormena ORCID logo , Fábio Rafael Echer ORCID logo , Camila Pereira Cagna ORCID logo , Caroline Honorato Rocha ORCID logo , Renato Paiva de Lima ORCID logo

25/Nov/2024

ABSTRACT Reduced stability and structural resilience expose sandy soils to physical degradation under intensive production systems. This study aimed to evaluate the influence of different cover crops (CC) under no-tillage system (NTS) cotton cropping, grown either individually or in combination, on the soil physical quality (SPQ) of a sandy loam Oxisol (Latossolo) in southeastern Brazil. To quantify the effects of CC on soil physical quality indicators, an experiment in randomized blocks design was implemented with the treatments: CC1: single cultivation […]

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Education of 21st century: A proposal of flipped classroom strategy to teach Soil Biology

Ademir Sergio Ferreira Araujo ORCID logo , Erika Valente de Medeiros ORCID logo , Diogo Paes da Costa ORCID logo , Arthur Prudencio de Araujo Pereira ORCID logo , Lucas William Mendes ORCID logo , Leandro Nascimento Lemos ORCID logo

25/Nov/2024

ABSTRACT Flipped Classroom (FC) approach has gained widespread acceptance across various education levels, particularly in higher education settings. Flipped Classroom represents a method employed to stimulate student learning, enhance academic performance, and foster student motivation and engagement. This approach involves the utilization of pre-class materials such as recorded lectures and multimedia resources for student review, while class time is dedicated to exercises, projects, or discussions. Numerous studies have documented enhanced learning outcomes among students of mathematics and science through FC […]

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Sediment source tracing in a Brazilian subtropical catchment using diffuse reflectance: Effect of spectral ranges, pre-processing techniques, and multivariate model

Rafael Ramon ORCID logo , Olivier Evrard ORCID logo , Jean Paolo Gomes Minella ORCID logo , Cláudia Alessandra Peixoto de Barros ORCID logo , Jean Michel Moura-Bueno ORCID logo , Gabriela Naibo ORCID logo , [...]

11/Oct/2024

ABSTRACT Agriculture intensification in Southern Brazil’s subtropical regions combined with the frequent occurrence of erosive rainfall has rendered the area a global water erosion hotspot. In this scenario, understanding and regulating erosion processes at the river catchment scale is critical for mitigating soil and water resource degradation. Traditional methods for tracing sediment sources are expensive and time-consuming and justify the development of alternative approaches. Therefore, in this study, we employed diffuse reflectance spectroscopy analyses in the ultraviolet-visible (UV-VIS), near-infrared (NIR), […]

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Impact of a forage legume or nitrogen fertilizer application on ammonia volatilization and nitrous oxide emissions in Brachiaria pastures

Rafael Cassador Monteiro ORCID logo , Camila Almeida dos Santos ORCID logo , Claudia de Paula Rezende ORCID logo , José Marques Pereira ORCID logo , Robert de Oliveira Macedo ORCID logo , Bruno José Rodrigues Alves ORCID logo , [...]

11/Oct/2024

ABSTRACT The largest proportion of greenhouse gas (GHG) emissions in the Agriculture sector of the Brazilian national GHG inventory is derived from the large (>200 million head) herd of cattle. The greatest contribution to these emissions comes from the enteric methane from cattle, but the direct and indirect emissions of nitrous oxide (N2O) from cattle excreta and N fertilizer are responsible for approximately 9 % of all national anthropogenic GHG emissions. Ammonia (NH3) can be volatilized from N fertilizer and […]

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