Artigo

Spatial variation of chemical attributes in archaeological dark earth under cocoa cultivation in western amazon

Archeological Dark Earths (ADEs) are fertility soils that are notoriously superior to the vast majority of soils typical of the Amazon region. The study on ADEs has intensified due to the good characteristics presented by these soils, such as high concentration of nutrients (phosphorus, calcium, mag...

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Autor principal: Barbosa, Roneres Deniz
Outros Autores: Lima, Alan Ferreira Leite de, Simões, Emily Lira, Brito Filho, Elilson Gomes de, Campos, Milton C?sar Costa, Cunha, José Maurício, Silva, Douglas Marcelo Pinheiro da, Souza, Fernando Gomes de
Grau: Artigo
Idioma: English
Publicado em: Bioscience Journal 2020
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/15567
id oai:repositorio:1-15567
recordtype dspace
spelling oai:repositorio:1-15567 Spatial variation of chemical attributes in archaeological dark earth under cocoa cultivation in western amazon Variação espacial de atributos químicos em terra preta arqueológica sob cultivo de cacau na amazonia ocidental Barbosa, Roneres Deniz Lima, Alan Ferreira Leite de Simões, Emily Lira Brito Filho, Elilson Gomes de Campos, Milton C?sar Costa Cunha, José Maurício Silva, Douglas Marcelo Pinheiro da Souza, Fernando Gomes de Archeological Dark Earths (ADEs) are fertility soils that are notoriously superior to the vast majority of soils typical of the Amazon region. The study on ADEs has intensified due to the good characteristics presented by these soils, such as high concentration of nutrients (phosphorus, calcium, magnesium). In this sense, the aim of this study was to evaluate the spatial distribution of soil chemical attributes in an area of black archeological earth soil under cocoa cultivation in the municipality of Apuí (AM). The mapping of a 42 x 88 m mesh, with irregular spacing of 6 x 8 m, totaling 88 points, was carried out, and then soil samples were collected at depths of 0.0-0.05; 0.05-0.10; (pH, O.C, Sto C, (H+Al), P, K, Ca, Mg, SB, CEC and V%). Data were analyzed using descriptive and geostatistical statistics techniques. The mean and median values were adjusted to the near values, indicating normal distribution, while the soil chemical attributes were adjusted to the spherical and exponential semivariograms models. The majority of the attributes presented coefficient of variation (CV) between 12.1 and 60%, characterized as average variability, the variables in the study presented different ranges and most of them had a strong spatial dependence. The geostatistical techniques used allowed the adjustments of the theoretical models that best represented the experimental semivariance, thus enabling the construction of thematic maps of the spatial distribution of the values of the attributes of the studied area. © 2019, Universidade Federal de Uberlandia. All rights reserved. 2020-05-15T00:09:38Z 2020-05-15T00:09:38Z 2019 Artigo https://repositorio.inpa.gov.br/handle/1/15567 10.14393/BJ-v35n1a2019-37137 en Volume 35, Número 1, Pags. 27-41 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Bioscience Journal
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
description Archeological Dark Earths (ADEs) are fertility soils that are notoriously superior to the vast majority of soils typical of the Amazon region. The study on ADEs has intensified due to the good characteristics presented by these soils, such as high concentration of nutrients (phosphorus, calcium, magnesium). In this sense, the aim of this study was to evaluate the spatial distribution of soil chemical attributes in an area of black archeological earth soil under cocoa cultivation in the municipality of Apuí (AM). The mapping of a 42 x 88 m mesh, with irregular spacing of 6 x 8 m, totaling 88 points, was carried out, and then soil samples were collected at depths of 0.0-0.05; 0.05-0.10; (pH, O.C, Sto C, (H+Al), P, K, Ca, Mg, SB, CEC and V%). Data were analyzed using descriptive and geostatistical statistics techniques. The mean and median values were adjusted to the near values, indicating normal distribution, while the soil chemical attributes were adjusted to the spherical and exponential semivariograms models. The majority of the attributes presented coefficient of variation (CV) between 12.1 and 60%, characterized as average variability, the variables in the study presented different ranges and most of them had a strong spatial dependence. The geostatistical techniques used allowed the adjustments of the theoretical models that best represented the experimental semivariance, thus enabling the construction of thematic maps of the spatial distribution of the values of the attributes of the studied area. © 2019, Universidade Federal de Uberlandia. All rights reserved.
format Artigo
author Barbosa, Roneres Deniz
spellingShingle Barbosa, Roneres Deniz
Spatial variation of chemical attributes in archaeological dark earth under cocoa cultivation in western amazon
author2 Lima, Alan Ferreira Leite de
Simões, Emily Lira
Brito Filho, Elilson Gomes de
Campos, Milton C?sar Costa
Cunha, José Maurício
Silva, Douglas Marcelo Pinheiro da
Souza, Fernando Gomes de
author2Str Lima, Alan Ferreira Leite de
Simões, Emily Lira
Brito Filho, Elilson Gomes de
Campos, Milton C?sar Costa
Cunha, José Maurício
Silva, Douglas Marcelo Pinheiro da
Souza, Fernando Gomes de
title Spatial variation of chemical attributes in archaeological dark earth under cocoa cultivation in western amazon
title_short Spatial variation of chemical attributes in archaeological dark earth under cocoa cultivation in western amazon
title_full Spatial variation of chemical attributes in archaeological dark earth under cocoa cultivation in western amazon
title_fullStr Spatial variation of chemical attributes in archaeological dark earth under cocoa cultivation in western amazon
title_full_unstemmed Spatial variation of chemical attributes in archaeological dark earth under cocoa cultivation in western amazon
title_sort spatial variation of chemical attributes in archaeological dark earth under cocoa cultivation in western amazon
publisher Bioscience Journal
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/15567
_version_ 1787144538943389696
score 11.755432

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