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All publications of “Valdomiro Severino de Souza Júnior”

14 results

Genesis and Classification of Nitisols from Volcano-Sedimentary Lithology in Northeastern Brazil

Edivan Uchôa Cavalcanti da Costa, Jane Kelly Silva Araujo, Laércio Vieira de Melo Wanderley Neves, José Coelho de Araújo Filho, Juliet Emília Santos de Sousa, Marcelo Metri Corrêa, [...]


ABSTRACT On the southern coast of Pernambuco State (PE), Brazil, lithotypes of the Cabo Basin (volcanic and sedimentary rocks), in association with the relief, allow the determination of the dynamics of the formation of Nitossolos Háplicos (Nitisols), including those with high levels of exchangeable aluminum. The objective of this study was to evaluate the influence of lithological diversity (basalt and sedimentary siliciclastic rocks) on the morphological, physical, chemical, and mineralogical properties of Nitossolos Háplicos along a slope (P1-summit, P2-backslope, P3-footslope) […]

Pedogenesis in an Archaeological Dark Earth – Mulatto Earth Catena over Volcanic Rocks in Western Amazonia, Brazil

Luís Antônio Coutrim dos Santos, Jane Kelly Silva Araujo, Valdomiro Severino de Souza Júnior, Milton César Costa Campos, Marcelo Metri Corrêa, Regilene Angélica da Silva Souza


ABSTRACT Archaeological Dark Earth (ADE) pedogenesis and pre-Columbian history are fundamental for understanding the biodiversity and pedodiversity of the Neotropical rainforest in the Amazon region. This study aimed to evaluate the morphological, physical, chemical, and mineralogical properties as well as NaOH-extractable organic matter [OM(NaOH)] in ADE and Mulatto Earth (ME) overlying volcanic rocks along a toposequence (four soil profiles) in western Amazonia, Brazil. The soil profiles show anthropic A horizons over an argic horizon (Bt) in the ADE (Humic, Pretic […]


Raiana Lira Cabral, Ângelo Giuseppe Chaves Alves, Mateus Rosas Ribeiro Filho, Valdomiro Severino de Souza Júnior, Mateus Rosas Ribeiro, Carolina Gonzaga Rodrigues Santos


Ethnopedological studies have mainly focused on agricultural land uses and associated practices. Nevertheless, peasant and indigenous populations use soil and land resources for a number of additional purposes, including pottery. In the present study, we describe and analyze folk knowledge related to the use of soils in non-industrial pottery making by peasant potters, in the municipality of Altinho, Pernambuco State, semiarid region at Brazil. Ethnoscientific techniques were used to record local knowledge, with an emphasis on describing the soil materials […]

Characterization of vertisols from the island of Fernando de Noronha, Pernambuco, Brazil

Flávio Adriano Marques, Regilene Angélica da Silva Souza, Juliet Emília Santos de Souza, José Fernando Wanderley Fernandes Lima, Valdomiro Severino de Souza Júnior


The Archipelago of Fernando de Noronha (FN), Brazil, has poorly developed soils of the Cambisol, Vertisol, and Leptosol classes (WRB-FAO), with particular characteristics related to parent material of volcanic origin, a tropical climate with oceanic influence, and rolling to strongly rolling relief. The Vertisols of FN are formed from basic rocks, volcanic tuffs, and alluvial sediments. They are associated with depressed surfaces that have impeded drainage from the central highlands and coastal plains. In view of the need for environmental […]

Humic Haplustox under different land uses in a high altitude environment in the Agreste region of Pernambuco, Brazil

Jane Kelly Silva Araujo, Mateus Rosas Ribeiro, Marcelo Metri Corrêa, Izabel Cristina de Luna Galindo, Valdomiro Severino de Souza Júnior


The Garanhuns Plateau in the Agreste region of the State of Pernambuco, Brazil is characterized by humid climatic conditions due to orographic rains, unlike the surrounding semiarid region. These soils are subjected to intense agricultural use and are extremely important for the regional economy. This study was carried out in the municipality of Brejão in the Agreste region with the aim of assessing changes in humic Haplustox soils subjected to different land uses. Four plots with different vegetation covers (native […]

Quality reference values for heavy metals in soils of Rio Grande do Norte, Brazil

Welka Preston, Clistenes Williams Araújo do Nascimento, Caroline Miranda Biondi, Valdomiro Severino de Souza Junior, William Ramos da Silva, Hailson Alves Ferreira


Industrial development and population growth have increased heavy metal concentrations in soils and impacted soil quality. In this scenario, environmental protection agencies have been concerned with establishing heavy metal quality reference values (QRV) that may identify contaminated sites. The study was carried out to provide soil reference values for the metals Ag, Ba, Cd, Co, Cr, Cu, Ni, Pb, Sb, V, and Zn in soils of the State of Rio Grande do Norte according to Brazilian legislation. The study analyzed […]

Characterization of Spodosols in the States of Paraíba and Pernambuco, in Northeastern Brazil

Vânia Soares de Carvalho, Mateus Rosas Ribeiro, Valdomiro Severino de Souza Júnior, Stephany Alves Brilhante


Studies on Spodosols in tropical coastal tablelands are still scarce. This paper studied such soils on coastal tablelands and a marine sandbank, in the States of Paraiba and Pernambuco, in Northeastern Brazil. Physical, chemical and mineralogical analyses were performed in 14 soil profiles on mostly plain surfaces under sugarcane cultivation. With regard to drainage, most of the profiles were defined as moderate to poorly drained and groundwater was detected at a depth of 182, 85 and 74 cm in three […]

Characterization of regosols in the semiarid region of Pernambuco, Brazil

Jean Cheyson Barros dos Santos, Valdomiro Severino de Souza Júnior, Marcelo Metri Corrêa, Mateus Rosas Ribeiro, Maria da Conceição de Almeida, Lucila Ester Prado Borges


Studies on soil characterization in unexplored regions, besides the generation of data banks for the soil classes of the country, also produce scientific information about soil properties, important for the development of good management practices and sustainable land use. One of the main soil classes in the semiarid region of Pernambuco State, the Regosols, cover about 27 % of the state area, and are used mainly for family agriculture. Due to different geological and climatic aspects Regosols with different chemical, physical […]

Relations of the soil with the geomorphic surface in a “várzea-terra firme” topossequence in the Humaitá region, Amazonia

Milton César Costa Campos, Mateus Rosas Ribeiro, Valdomiro Severino de Souza Júnior, Mateus Rosas Ribeiro Filho, Maria da Conceição de Almeida


The geomorphic surface concept allows interrelationship among various branches of soil sciences, such as geology, geomorphology and pedology. The purpose of this study was to investigate soil-geomorphic surface relations along an upland-downland toposequence in the region of Humaitá, Amazonas State, Brazil. A transect of 4,500 m was studied from the water divide downstream to the flood plain of the Madeira river. The geomorphic surfaces were identified based on the slope rupture, stratigraphic criteria and on other field observations. Trenches were […]

Highlands of the upper Jequitinhonha valley, Brazil. II – mineralogy, micromorphology, and landscape evolution

Fábio Henrique Alves Bispo, Alexandre Christofaro Silva, Pablo Vidal Torrado, Valdomiro Severino de Souza Junior


Palm swanp formations, the so-called veredas, typically occur in the Brazilian biome known as “Cerrado” (savanna-like vegetation), especially on flattened areas or tablelands (chapadas). The aim of this study was to characterize the mineralogy and micromorphology of soil materials from a representative toposequence of the watershed of the vereda Lagoa do Leandro, located in Minas Novas, state of Minas Gerais, Brazil, on plains in the region of the upper Jequitinhonha valley, emphasizing essential aspects of their genesis and landscape evolution. […]

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