CHANGES IN SOIL PROPERTIES IN FUNCTION OF DIFFERENT SOIL USES IN THE IRRIGATED PERIMETER OF ICO-MANDANTES IN THE SEMIARID REGION OF PERNAMBUCO, BRAZIL

Rossini Mattos Corrêa; José Antônio Aleixo da Silva; Maria Bethânia Galvão dos Santos Freire; Gunter Gunkel; Marilia Regina Costa Castro

doi:10.5327/Z2176-947820151014

Authors

Rossini Mattos Corrêa Instituto Nacional de Colonização e Reforma Agrária (INCRA)
José Antônio Aleixo da Silva Universidade Federal Rural de Pernambuco (UFRPE)
Maria Bethânia Galvão dos Santos Freire Universidade Federal Rural de Pernambuco (UFRPE)
Gunter Gunkel Techniche Universität Berlin
Marilia Regina Costa Castro Instituto Federal de Educação Ciência e Tecnologia de Pernambuco (IFPE)

DOI:

https://doi.org/10.5327/Z2176-947820151014

Keywords:

soil quality; soil management; native vegetation; land use; São Francisco; semi-arid.

Abstract

The aim of this study is to evaluate land uses, using physical and chemical
attributes in the irrigated perimeter Ico-Mandantes, between Petrolândia
and Floresta, in the semiarid region of Pernambuco, Brazil. The identified
uses of the land are as follows: short cycle crops (C), fruit (F), pasture (P),
abandoned areas (D), and native vegetation (V). This study evaluated the
uses C, F, D, P and V. In both places, samples were collected from deformed
soil at 0–10, 10–30, and 30–60 cm, as well as non-deformed soil from the
first two layers to the physical determinations and chemical properties. The
data of physical and chemical analyses were subjected to descriptive linear
analysis and multivariate analysis, the technique of principal component
analysis, and clustering by the Tocher method. The use of the native
vegetation differed from all other uses among the analyzed layers, thereby
indicating that the productive uses which were evaluated, promote in fact
changes in the physical and chemical layers studied. The analysis of the
physical and chemical attributes do not differentiate any of the productive
uses systematically analyzed in all layers.