scholarly journals GEOSSÍTIOS PONTUAIS ESSENCIAIS AO ENSINO DE GEOCIÊNCIAS NO RIO GRANDE DO SUL: CARACTERÍSTICAS E IMPORTÂNCIA PARA A GEOCONSERVAÇÃO

2013 ◽  
Author(s):  
André Weissheimer de Borba

A geoconservação preocupa-se com a proteção, valorização, divulgação e uso sustentável do patrimônio geológico, que incluidesde grandes áreas complexas até geossítios isolados ou pontuais. Este trabalho focaliza cinco geossítios, de aproximadamente umhectare, situados em diferentes regiões do Rio Grande do Sul, desprovidos de qualquer atratividade turística ou destaque na paisagem,mas essenciais ao ensino de diferentes conceitos/processos em geociências: uma discordância angular, um pequeno pavimento glacial, umlajeado com estratificações cruzadas acanaladas de grande porte, uma dobra recumbente e um afloramento de arenitos triássicos comtroncos fósseis. Tais geossítios, largamente utilizados para o ensino de estratigrafia e geologia histórica, foram analisados levando-se emconta seus atributos didáticos, condições de acesso e potenciais riscos a sua integridade e/ou visibilidade. Com base nas observações,sugerem-se medidas para sua proteção (tombamento legal, designação de buffer para silvicultura, eventual aquisição dos terrenos) eutilização racional e sustentável (implantação de trilhas/trapiches, sinalização informativa/educativa, indicação de acessos, divulgação àsescolas municipais). Tais medidas poderiam partir das universidades gaúchas, sendo capazes de proporcionar impactos positivos nadivulgação das geociências à sociedade e na maior integração do conhecimento geológico com a educação básica nos municípios onde taisgeossítios se localizam.Palavras-chave: patrimônio geológico, geoconservação, geossítios isolados. ABSTRACT ESSENTIAL POINT-TYPE GEOSITES FOR THE TEACHING OF GEOSCIENCES IN RIO GRANDE DO SUL STATE: CHARACTERISTICS ANDRELEVANCE FOR GEOCONSERVATION. Geoconservation aims at the protection, valuing, divulgation and sustainable use of geologicalheritage sites, from large complex areas to point-type, isolated outcrops. This work focuses on five point-type geosites (area near 1 ha)from different regions of Rio Grande do Sul State (southernmost Brazil). The analyzed geosites display virtually no tourist attractiveness orlandscape highlight, but they are essential for teaching a variety of geological concepts/processes: an angular unconformity, a small glacialpavement, didactic large-scale, eolian cross-strata, one recumbent fold and an outcrop containing Triassic fossil trunks. The referredgeosites, extensively used for teaching stratigraphy and historical geology in southernmost Brazil, were assessed in their didactic andaccessibility attributes, as well as in the associated risks to their integrity and/or visibility. Based upon the obtained data, a series ofmeasures are suggested for the protection (legal protection, buffers for forestation projects, land buying) and sustainable use (trail design,informative signage, access indication, integration is basic school classes in the respective municipalities). Such measures could be initiatedby Rio Grande do Sul State universities, being capable of becoming positive channels for geosciences popularization and integration of thegeological knowledge in basic school teaching.Keywords: geological heritage, geoconservation, point-type geosites.

2011 ◽  
Vol 34 (2) ◽  
pp. 70-83
Author(s):  
Leonardo Abreu Jorge Justo ◽  
José Ricardo de Almeida França

The present paper analyses the microphysical and synoptic processes of a storm that hit the extreme south of Rio Grande do Sul and Uruguay in order to understand the dynamic, thermodynamic and microphysical mechanisms responsible for its occurrence and also to verify the large scale precursors that were determinant for the microphysical structure found in the storm. The microphysics analysis was performed using vertical profiles of different microphysics parameters derived from the high-precision radar on board CloudSat satellite. The results show that the storm region presenting the higher precipitation rate was associated with high content of ice and large ice crystals near to cloud top. This study has also verified that the observed Mesoscale Convective Complex (MCC) was mainly composed of ice crystals and its microphysics structure was highly influenced by large scale processes.


Author(s):  
José Alba ◽  
Marcos Wrege ◽  
Marilice Garrastazu

Zoning based on climate and soil characteristics does not represent a full ecological-economic zoning procedure, as the Brazilian law establishes, but it is a positive step forward toward a sustainable use of natural resources. The Embrapa Temperate Climate Research Center has developed, with the collaboration of several entities from Brazil and Uruguay, a zoning procedure based on climate and soil for planting eucalyptus in southern region of Rio Grande do Sul State covering a total area greater than 3,5 million hectares. Three eucalyptus species were considered: Eucalyptus grandis W. Hill ex Maiden, Eucalyptus dunnii Maiden and Eucalyptus globulus Labill. Data were processed and integrated through statistical procedures and by using a GIS. The potential surface area for forestry surpasses 900,000 hectares, but a homogeneous exploitation of that territory is limited by legal restrictions.


1996 ◽  
Vol 23 (1-2) ◽  
pp. 25
Author(s):  
RONALDO DOS SANTOS DA ROCHA

This work studies the use of map projections in large scale mapping to provide support for a Land Information System. For this purpose, evaluations of the map projections commonly used in France, Switzerland, USA and Brazil are presented. The adequate precision to record property lines in a cadastral survey is identified and then compared to the linear distortions inherent to the map projections used in Brazil. Based upon these discrepancies, an optimum projection was developed to be used in large scale cartography in the State of Rio Grande do SuI. The expressions to transform geographic coordinates into projection coordinates are also presented. Several tests have been performed and the results are portrayed on a comparative chart showing the values of geodectics, plane distance on the UTM projection and plane distance on the above mentioned projection. The identified projection presents linear distortions lower than the established precision for property delimitation, corroborating the validity of its use in a Land Information System.


2018 ◽  
Vol 40 ◽  
pp. 41
Author(s):  
Cristian Mateus Zerwes ◽  
Claudete Rempel ◽  
Janaína Kollet Schneider ◽  
Leila Teresinha Maranho

The Seasonal Deciduous Forest (FED) is a deciduous and human-caused impacted vegetation, occurring at the Upper Rio Uruguay basin and at the southern slope of Serra Geral plateau, Rio Grande do Sul state. The aim of this study is to compile results of tree layer floristics and phytosociological surveys on FED of Serra Geral escarpment with the intention of supporting future interventions for the recovery of degraded areas and sustainable management projects. To obtain the data, was held a narrative review from 62 selected works from the digital libraries of CAPES, Scielo and Google Scholar. For quantitative variables, was calculated the median, standard deviation and amplitude. The hodgepodge of methods used in the surveys conducts to difficulties in comparing data. The median species richness is 54 and the Shannon-Wiener diversity index median is 3.10 nats. The analyzed surveys show very important information to define methods and planning for conservation, degraded area recovery and sustainable use of forest resources.


Author(s):  
Adriano Jabur Bittar ◽  
Valéria M. Chaves Figueiredo ◽  
Alexandre Donizete Ferreira

This article presents the Brazil-United Kingdom (BR-UK) Dance Medicine and Science (DMS) Network as a potent place for poetic-creative research. Through the BR-UK DMS Network, institutions such as the University of Wolverhampton, a leader in the DMS field, the National Institute of Dance Medicine and Science, formed by this University and Birmingham Royal Ballet, One Dance UK, Trinity Laban and University of Birmingham, started, in 2016, a broad dialogue with the Brazilian State Universities of Goiás and Campinas, Federal Universities of Goiás, São Paulo and Rio Grande do Sul, Federal Institutes of Goiás and Brasília and Salgado de Oliveira University, as well as with other stakeholders from the private sector and individuals, in order to create an international cooperation. The main objective is to develop research and collaborative services during a 15-year period, establishing transdisciplinary ways for the advancement of the partnership between Dance, Science and Health.


2013 ◽  
Author(s):  
André Weissheimer de Borba ◽  
Adriano Severo Figueiró ◽  
Taís da Silva Garcia ◽  
Silvio Ávila Domingues ◽  
Luiz Paulo Martins e Souza

A ‘metade sul’ gaúcha possui um patrimônio geológico singular: (a) lagoas, praias e dunas do litoral; (b) paisagens graníticas dasserras do Herval e Canguçu, raízes de antiga cadeia montanhosa; (c) Caçapava do Sul, incomparável sala de aula ao ar livre para o ensino degeociências; (d) cerros tabulares e areais que testemunham a superposição de desertos; e (e) o Cerro do Jarau, cratera de meteoro ecenário de lendas gaúchas. Por outro lado, a região apresenta deficiências profundas na educação, sua infraestrutura turística é precária, eseus atributos naturais estão desprotegidos e vulneráveis frente a empreendimentos danosos. As geociências, nessa nova tendência debusca da sustentabilidade e retorno socioambiental, precisam divulgar a importância e a necessidade de proteção desse geopatrimônioinsubstituível. Para que, no futuro, se possa pensar em ‘geoparques’, os geocientistas devem imediatamente focalizar ações efetivas degeoconservação na região: (1) apontar geossítios importantes, a serem protegidos por UC, figuras legais imprescindíveis à qualidadeambiental da região; (2) qualificar professores da educação básica em tópicos de geociências, estimulando o uso de exemplos locais emsuas aulas; e (3) participar na montagem de roteiros geoturísticos interessantes, recheados de cultura e conhecimento.Palavras-chave: patrimônio geológico, geoconservação, ‘metade sul’, Rio Grande do Sul. ABSTRACT CHARACTERISTICS OF THE 'SOUTHERN HALF' OF THE RIO GRANDE DO SUL STATE AND ITS IMPLICATIONS FORGEOCONSERVATION, GEOTOURISM, AND GEOPARKS. The so-called ‘southern half’ of the Rio Grande do Sul State possesses a singulargeological heritage: (a) beaches, lagoons, and dune fields at the coast; (b) granitic landscapes of Herval and Canguçu, roots of an ancientmountain range; (c) the Caçapava do Sul region, unmatched open-air classroom for geosciences teaching; (d) table hills and sand fields thatrecord the superposition of deserts; and (e) the Jarau hill, meteor crater and scenario of traditional gaucho tales. On the other hand, theregion displays profound deficiencies in basic education, weak tourist structure, and nature monuments threatened by potentiallydamaging enterprises. Geosciences, in the current trend of seeking sustainability and social-environmental feedback, must divulge theimportance and the protection need of this irreplaceable geoheritage. In order to consider, in the future, eventual bids for the ‘geopark’certification, geoscientists should immediately focus on effective geoconservation initiatives for the region: (1) recommending geositessuitable for legal protection; (2) qualifying basic education teachers in geology-related topics, stimulating the use of local examples in theclasses; and (3) participating in the design of interesting, knowledge-based tourist programs.Keywords: geological heritage, geoconservation, ‘southern half’, Rio Grande do Sul State.


1975 ◽  
Vol 17 (3) ◽  
pp. 259-280 ◽  
Author(s):  
John Kirby

The argument advanced by Bordaberry … by the United States and Brazilian embassies, and by the cattle and meat interests, is that Uruguay does not have a viable independent economy. It is smaller, on most terms of reference, than the southernmost state of Brazil–Rio Grande do Sul–and would, they say, be far better off if its economy were “rationalized” and integrated with the more “modern” large-scale Brazilian economy.Latin America, Vol. VIII, No. 31, August 3 ,1973Leaving aside the obvious self-interest of the various proponents (although one is tempted to speculate whether President Bordaberry argues on behalf of his country or his own ranching interests), their conclusion follows logically on much of the analysis which has focused on the causes of Uruguay's stagnation. Since the mid-1950s, the growth of the economy has barely kept pace with the small population increase of 1.2 percent per annum.


2011 ◽  
pp. 1129-1144
Author(s):  
José Alba ◽  
Marcos Wrege ◽  
Marilice Garrastazu

Zoning based on climate and soil characteristics does not represent a full ecological-economic zoning procedure, as the Brazilian law establishes, but it is a positive step forward toward a sustainable use of natural resources. The Embrapa Temperate Climate Research Center has developed, with the collaboration of several entities from Brazil and Uruguay, a zoning procedure based on climate and soil for planting eucalyptus in southern region of Rio Grande do Sul State covering a total area greater than 3,5 million hectares. Three eucalyptus species were considered: Eucalyptus grandis W. Hill ex Maiden, Eucalyptus dunnii Maiden and Eucalyptus globulus Labill. Data were processed and integrated through statistical procedures and by using a GIS. The potential surface area for forestry surpasses 900,000 hectares, but a homogeneous exploitation of that territory is limited by legal restrictions.


2007 ◽  
Vol 30 (2) ◽  
pp. 31-44
Author(s):  
Taís Pegoraro Scaglioni ◽  
Roseli Gueths Gomes ◽  
Julio Renato Quevedo Marques

In this work the influences of the positioning of high and low pressures systems centers at South Atlantic Ocean and Sea Surface Temperature (SST) anomalies of Atlantic and Pacific Oceans are analysed in association to the occurrence of Mesoscale Convective Systems (MCS) in Rio Grande do Sul (RS) State. The selected period involves four years of February (2002-2005). It was utilized geostationary satellite imagery, values of Sea Surface Temperature (SST) anomalies of the Atlantic and Pacific Oceans and pluviometric precipitation data observed on the State. The horizontal fields of atmospheric pressure and streamslines were obtained from simulations made with the mesoscale model MM5. The results showed that for the analysed period there was one rainy February in the State and three months of drought. For the drought months, the number of observed MCS was inferior, up to six times, to the observed one in the rainy month. Still, in the dry months, the MCS presented shorter duration in relation to the ones observed in the rainy February. For all the analysed period, the MCS dissipation occurred to the east of its position of formation, in the majority of the cases. Although the differences found between all the analysed MCS, the preferential time in which they formed, 12 and 18 UTC, predominated in all period. The large scale and mesoscale circulation patterns had shown that in the rainy month, the centers of subtropical high pressure systems located on the Atlantic Ocean were positioned near the SSA coast, where the SST anomalies values were positive. The opposite were observed during the drought months.


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