No abstract

This work was carried out on Fazenda Nhumirim, owned by EMBRAPA Pantanal, in Nhecolândia, Pantanal (lowlands) of Mato Grosso do Sul. This research aimed to study the vegetation of Nhecolândia to meet the needs of recognizing the elements of the natural environment as well as its dynamics to reach environmental balance in the region. Nhecolândia is one of the most significant beef-cattle raising regions in Brazil. The native pastures correspond to a great variety of vegetation units, from grassland to Brazilian savannahs. The spatial and temporal use of these pastures by cattle, its availability, quality and cattle-raising productivity have been influenced by environmental conditions-mainly floods and rainfall. For conservation and sustainable usage of natural resources in Pantanal, it is of utmost importance to map the main environmental areas, to establish vegetation/pasture units in order to know the animal species survival areas, because Pantanal corresponds to a set of environmental units of fragile dynamics balance-the plain has very low declivities which provoke an extremely slow move of the water, the hydric dynamics is unique: the rains and rivers supply the water tables causing floods; and the cattle feed almost exclusively on native pastures. Bearing in mind the use of the vegetation as pasture, there has been a necessity of studying the relations among the varieties of vegetation, especially the wild ones, and their environment of occurrence. It was necessary to propose a classification for the vegetation and a local mapping of the vegetation units, relating it to the environment of the occurrence, aiming to extend the use of the results to the whole lowlands in Nhecolândia. The vegetation was classified as: Usually Drought Unit, Usually Seasonal Unit and Usually Wet Unit, which presented differences as to preference by cattle, flowering characteristics, physiognomic and, mainly as to usual wetness of the soil, due to topography and rain falls throughout the year.

Este artigo resulta de um estudo sobre o clima da área da Serra do Ibitipoca. A área da Serra corresponde ao Parque Estadual do Ibitipoca, situada entre a Serra da Mantiqueira e o Planalto de Andrelândia, no sudeste do Estado de Minas Gerais. São apresentados e discutidos dados de precipitação pluviométrica, temperaturas do ar, umidade relativa do ar e ventos. Também foram consideradas as observações provenien tes de trabalhos de campo, realizados de forma intensiva e contínua. São apresentadas as características habituais do clima da Serra do Ibitipoca, representadas e sintetizadas em três unidades climáticas. PALAVRAS-CHAVE:Unidade de conservação, unidades climáticas, precipitação pluviométrica, temperaturas do ar, gradiente térm ico, umidade relativa do ar, circulação do ar. ABSTRACT:This paper présents a study of the Climate in Ibitipoca Range. Part of Ibitipoca Range is occuped by Ibitipoca State Park, situated between Mantiqueira Range and Andrelândia Plateau, southeast of Minas Gerais State, in Brazil. It's presented a discussion about précipitation, température, relative humidity and winds and their relations. We added field observations, that was intensive and continuous. As the main conclusion, we introduce the more usual characteristics of the Ibitipoca climate that are represented and synthesized in three clim atic units.

Este artigo resulta de um estudo sobre o clima da área da Serra do Ibitipoca. A área da Serra corresponde ao Parque Estadual do Ibitipoca, situada entre a Serra da Mantiqueira e o Planalto de Andrelândia, no sudeste do Estado de Minas Gerais. São apresentados e discutidos dados de precipitação pluviométrica, temperaturas do ar, umidade relativa do ar e ventos. Também foram consideradas as observações provenien­ tes de trabalhos de campo, realizados de forma intensiva e contínua. São apresentadas as características habituais do clima da Serra do Ibitipoca, representadas e sintetizadas em três unidades climáticas. PALAVRAS-CHAVE: Unidade de conservação, unidades climáticas, precipitação pluviométrica, temperaturas do ar, gradiente térm ico, umidade relativa do ar, circulação do ar. ABSTRACT: This paper présents a study of the Climate in Ibitipoca Range. Part of Ibitipoca Range is occuped by Ibitipoca State Park, situated between Mantiqueira Range and Andrelândia Plateau, southeast of Minas Gerais State, in Brazil. It's presented a discussion about précipitation, température, relative humidity and winds and their relations. We added field observations, that was intensive and continuous. As the main conclusion, we introduce the more usual characteristics of the Ibitipoca climate that are represented and synthesized in three clim atic units.

abriga cam pos rupestres, cerrados de altitude e matas, distribuidos em terreno m ontanhoso, rico em exposições rochosas de Quartzito, além de várias cavernas. Este trabalho constitui-se em uma proposta de individualização da área em unidades ambientais. Tal com partim entação em unidades foi baseada em levan tam entos e m apeam entos tem áticos das rochas, solos, relevo, vegetação e clima da área. Os resultados de cada levantam ento foram relacionados entre si, de forma a individualizar as unidades, resultando em um Mapa de Unidades Ambientais. PALAVRAS-CHAVE: Unidades am bientais, solos, relevo, clima, vegetação, rochas ABSTRACT:The Ibitipoca State Park is situated between Mantiqueira range and Andrelãndia plateau, in southeast region of Minas Gerais State. It's a very important conservation unit. With large ecological diversity because con tains rupestrian fields, mountain savannah and forests, distributed in a rough terrain, rich in quartzite out crops, and a few caves. This study is a proposal for the area individualisation in environmental units. This individualisation was based in research and mapping of rocks, soils, relief, vegetation and weather of the area. The results of each mapping were interconnected, individuatisating the units, resulting a map of envi ronmental units.