2018
DOI: 10.1590/1807-1929/agriambi.v22n1p38-44
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Spatial variability of soil attributes in an experimental basin in the semi-arid region of Pernambuco, Brazil

Abstract: A B S T R A C TThis study aimed to evaluate the spatial patterns of physical and chemical properties of a soil in an experimental basin with an area of 149 km 2 , located in the municipality of Pesqueira, in the semi-arid region of Pernambuco state (Brazil). Samples were taken in the layers of 0-0.10 and 0.10-0.20 m, at 35 monitoring points distributed in an irregular grid, encompassing the three soil classes present in the basin and commonly found in the semi-arid region. For the attributes of soil texture, o… Show more

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Cited by 8 publications
(4 citation statements)
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“…Statistical differences were also detected for the mean soil moisture for the whole period, being more evident for the João Site. Araújo et al [24] studied the spatial distribution of soil moisture for the Ipanema River Basin, where the experimental plots were inserted, and also observed low water availability conditions for the whole area in the same period.…”
Section: Rainfall Event Analysesmentioning
confidence: 99%
“…Statistical differences were also detected for the mean soil moisture for the whole period, being more evident for the João Site. Araújo et al [24] studied the spatial distribution of soil moisture for the Ipanema River Basin, where the experimental plots were inserted, and also observed low water availability conditions for the whole area in the same period.…”
Section: Rainfall Event Analysesmentioning
confidence: 99%
“…Estudos recentes têm demonstrado que o solo está naturalmente sujeito à variação de suas propriedades físicas e químicas no espaço e no tempo, resultante da complexa interação entre pedologia, topografia e clima (ARAÚJO et al, 2018). A modelagem desta variabilidade é possível utilizando de técnicas geoestatísticas.…”
Section: Introductionunclassified
“…They verified an average variability for sand, silt and clay fractions. Araújo et al (2018), in their studies on Yellow Argisols, Litossolos, and Neossolos, obtained low and/or medium variability in textural fractions in superficial layers of semiarid soils, according to the criteria of Warrick & Nielsen (1980). All textural fractions exhibited distributions close to the symmetry, considering the index presented by the coefficient of skewness.…”
Section: /14mentioning
confidence: 94%