Caracterização e classificação de solos em Cordilheiras do Pantanal da Nhecolândia – MS

Abstract

In Pedology, taxonomic systems deal with the scientific arrangement (classification) of soils in similar groups. Also, classifying acts as a tool against the progress of science when it allows identifying gaps in knowledge. There are several soil taxonomy systems, some with a tendency to be adopted worldwide, others restricted to one country or group of countries. The Nhecolândia Pantanal is located in the southern part of the Taquari Range on the left bank of the river, where there are intertwined paleocannals, an indeterminate number of small temporary lagoons and some small water courses designated as ebb, and there are still soft elevations in the sandy plain, marked by corridors of forest vegetation, that receive the popular name of "mountain ranges". The objective of this study was to analyze some of the criteria that separate the classes in the SiBCS, and to examine the abundant occurrence of the Acuri palm (Scheelea phalerata (Mart. Ex Spreng.)) And its relation with the soils Quartzipsamments present in these places. In this way, the work intends for an evaluation of the feasibility of occurrence of Eutrophic Quartzipsamments and / or Psamments in the Nhecolândia Pantanal. The palm S. phalerata has also become the object of study for the research considering that among researchers and the population in general is one of the plants most used as a natural indicator of fertility (Resende et al., 2014). The results evidenced that the seven soil profiles did not show substantial variations, with only one exception, all the others followed the same classification up to the subgroup level, thus, evidencing that all the samples have similarity to each other, that is, which stratifies the presence of the palm in this region are not the factors present in the soil. It was concluded that there is no correlation between the presence of Scheelea phalerata and eutrophic soils in the studied area. In this way, it is not possible that this palm is an indicator of soil fertility in the Pantanal of Nhecolândia. As verified by Ferreira Júnior et al. (2016), the only factor that would define the occurrence of Scheelea pharelata on the Pantanal ridges of the Nhecolândia is the supply of oxygen in the soil, and the species shows a limitation in relation to flood areas.