1. PEDOESTRATIGRAFIA EM LAGOAS SALINAS NO PANTANAL DA NHECOLÂNDIA-MS.
- Author
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Ferreira Neto, Milto
- Abstract
The saline lakes are typical environment in the Nhecolândia a region of the Pantanal wetland. Recent research demonstrates a climatic chance with increase of humidity last 3,000 years and alkalinization of saline lakes last 910 years. This process of the climatic change for wetland environment can to interfere in pedostratigraphic organization. So, the aim this paper is presents the pedostratigraphic characteristics of the two saline lakes of the Nhecolândia. Using remote sensing selected the area sampling and in fieldwork was measured the pH and electric conductivity for to validate the basic characteristics of the saline lake. Were collected two samples of lakes: one inside near water and one in area more elevated topographically which has the local name of "cordilheira". After in laboratory the samples were fractionated using color and texture. This fractionated material was analyzed granulometric and statistic. As a result we have predominant texture in all profile are fine sand but in inside of saline lake there is greater variation of the grain characteristic while in the cordilheira the distribution of type of grain is homogeneous. The color of samples evidence the relationship with hydromorphism because inside of lake is Gley color. While cordilheira with elevation the process pedogenic it is related interaction with vegetation that are less intense preserving the depositional records better than in environments under influence of water. [ABSTRACT FROM AUTHOR]
- Published
- 2022