Soil attributes in agricultural uses and in the Semiarid RN-Brazil in eutrophic Cambisol

Souza, Rauny Oliveira de; Portela, Jeane Cruz; Martins, Carolina Malala; Dias, Nildo da Silva; Cavalcante, Jussiara Sonally Jácome; Silva, Jucirema Ferreira da; Junior, Francisco Souto de Sousa; Silva, Francisco Vanies da

doi:10.5897/ajar2015.9983

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…According to the distribution of the particle size that shows the physical attributes of the profiles (Table 2), the highest clay contents in the surface layer were found in the profiles NFA1, NFA2, NFA3, and COA (Cambissolos Haplicos), ranging from 360 g kg -1 to 408 g kg -1 , and in the PPA (Neossolo Fluvico) (550 g kg -1 ), which is in an area of sediment deposition and groundwater oscillations and present sandy clay, and clay loam to clay textures. Souza et al (2015) evaluate physical and chemical properties of a Cambissolo Eutrofico under different agricultural uses in the Chapada do Apodi and found predominance of the clay fraction in areas with native forests, and Spondia sp., with similar values ranging from 373 to 478 g kg -1 . However, the clay fraction increased in depth, mainly in the Argissolo (CCA), presenting accumulation of clay of 422 g kg -1 in the 25-50 cm layer, denoting the evolution to a textural B horizon (Bt) formed by the pedogenic process of argiluviation ( Table 2).…”

Section: Physical Attributesmentioning

confidence: 99%

Characterization and Classification of Soils of the Terra da Esperança Settlement Project in Chapada do Apodi, Brazil

Costa¹,

Portela²,

Farias³

et al. 2019

JAS

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Soil characterization and pedological classification are essential to define its main potentials and restrictions. The objective of this work was to classify the morphological, physical, chemical, and pedological attributes of soils of the Terra da Esperança Settlement Project (TESP) in Chapada do Apodi, Brazil, and find the most sensitive attributes for distinguishing them using multivariate analysis. The research was carried out in the TESP, in the municipality of Governor Dix-Sept Rosado, state of Rio Grande do Norte, Brazil. Ten sites were chosen to open representative soil profiles: Native Forest Area 1 (NFA1), 2 (NFA2), and 3 (NFA3), Collective Area with Native Forest (CNF), Agroecological Area (AEA), Cashew crop Area (CCA) Collective Area with Pasture 1 (CAP1), and 2 (CAP2), Permanent Preservation Area (PPA), and Cajaraneira (Spondia sp.) Orchard Area (COA). Disturbed and undisturbed soil samples were collected and subjected to physical and chemical analysis for soil classification. The soils classes found were: Cambissolo Haplico Carbonatico vertissolico (NFA1), Cambissolo Haplico Carbonatico tipico (CNF, and AEA), Cambissolo Haplico Ta Eutrofico tipico (CAP2, NFA2, and COA), Cambissolo Haplico Ta Eutrofico vertissolico (NFA3), Argissolo Vermelho Distrofico latossolico (CCA), Chernossolo Rendzico Ortico saprolitico (CAP1), and Neossolo Fluvico Ta Eutrofico tipico (PPA). The material of origin of the soils contributed to the presence of a calcic horizon in the profiles NFA1, CNF, AEA, CCA (Cambissolos), and CAP1 (Chernossolos). The textural class of the soils varied from sand to clay. The Argissolo (CCA) presented acid character, high aluminum saturation, low base saturation, dystrophic character, and low cation exchange capacity, forming horizons with chemical limitations, due to its latossolico character. The most sensitive attributes for distinguishing the soil classes were related to the source material, which directly influenced the soil physical (silt and clay) and chemical (acidity, salinity, nutrient availability, and clay activity) attributes.

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Section: Physical Attributesmentioning

confidence: 99%

Characterization and Classification of Soils of the Terra da Esperança Settlement Project in Chapada do Apodi, Brazil

Costa¹,

Portela²,

Farias³

et al. 2019

JAS

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Water retention in Cambisols under land uses in semiarid region of the Brazil

Oliveira

Portela

Silva

et al. 2021

Journal of Arid Environments

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Soil Classification Based on Local and Scientific Knowledge in an Irrigated District in the Semi-Arid Region of Brazil

Silva,

Ferreira Neto,

Portela

et al. 2024

Land

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Ethnopedology offers a unique opportunity to recognize and highlight invaluable local soil knowledge (LSK). We aimed to classify three soil profiles in a Brazilian irrigated district with salt-affected soils based on smallholder farmers’ LSK and scientific knowledge. The study occurred in the Baixo-Açu irrigation district in Brazil’s semi-arid region. Three soil profiles were characterized by researchers (etic approach) and farmers (emic approach) in the following areas: P1 profile (area under banana cultivation), P2 profile (fallow area), and P3 profile (native forest area). Smallholder farmers identified the studied areas with salt problems based on the salt precipitation on the surface, changes in leaf color, and incidence of indicator plants of salinized areas. Researchers classified P1 profile as Pantohypereutric Calcaric Leptic Cambisol (Loamic, Humic), P2 as Pantohypereutric Calcaric Leptic Cambisol (Loamic, Humic), and P3 as Leptic Calcic Chernozem (Loamic). Smallholder farmers classified the P1 profile as “Terra de Salitre” (Salt Soil), the P2 profile as “Terra de Piçarro” (Saprolite Soil), and the P3 profile as “Terra Boa” (Good Soil). The results indicate that valuing local soil knowledge is effective and crucial for improved scientific research and land use, highlighting the importance of recognizing and utilizing their expertise and experience.

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Soil attributes in agricultural uses and in the Semiarid RN-Brazil in eutrophic Cambisol

Cited by 3 publications

References 7 publications

Characterization and Classification of Soils of the Terra da Esperança Settlement Project in Chapada do Apodi, Brazil

Characterization and Classification of Soils of the Terra da Esperança Settlement Project in Chapada do Apodi, Brazil

Water retention in Cambisols under land uses in semiarid region of the Brazil

Soil Classification Based on Local and Scientific Knowledge in an Irrigated District in the Semi-Arid Region of Brazil

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