• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 143
  • 2
  • Tagged with
  • 146
  • 100
  • 84
  • 80
  • 60
  • 58
  • 56
  • 55
  • 55
  • 53
  • 49
  • 36
  • 34
  • 34
  • 32
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Fitossociologia e estrutura do componente arb?reo de um remanescente de floresta urbana no Maci?o da Pedra Branca, Rio de Janeiro ? RJ. / Floristic and structure of the tree component of an urban forest remnant in Pedra Branca, Rio de Janeiro - RJ.

Freire, Juliana M?ller 01 July 2010 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2016-08-30T15:49:24Z No. of bitstreams: 1 2010 - Juliana M?ller Freire.pdf: 12006121 bytes, checksum: 145a6bd3be51d71faac2dfdc0a20e5c4 (MD5) / Made available in DSpace on 2016-08-30T15:49:24Z (GMT). No. of bitstreams: 1 2010 - Juliana M?ller Freire.pdf: 12006121 bytes, checksum: 145a6bd3be51d71faac2dfdc0a20e5c4 (MD5) Previous issue date: 2010-07-01 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior, CAPES, Brasil. / This study aimed to evaluate the structure and floristics of shrubs and trees in areas of northern and southern slopes in the southern portion of the Maci?o da Pedra Branca, Rio de Janeiro, RJ. We tested the hypothesis that different component orientations may influence the structure and floristic changes. In a sample area of 9.700 m2, divided into ten areas, were surveyed 1508 individuals, distributed in 324 species, 154 genera and 52 families. The families richest in species were: Myrtaceae, Lauraceae, Fabaceae, Rubiaceae and Euphorbiaceae. The Diversity Index Shannon-Wiener (H ') was 5.093 nats / indiv., And the evenness (J) was 0.881. Horizontal structure in the species Joannesia princeps, Piptadenia gonoacantha e Pseudopiptadenia contorta, Meternichia princeps, Apuleia leiocarpa, Astrocaryum aculeatissimum, Chrysophyllum flexuosum reached the highest value of phytosociological importance. A phytosociological analysis of each individual area indicated significant floristic and structural variations, with a trend toward greater diversity is found in areas of higher altitude and farther from the urban perimeter. Of the 324 species found in the study, 124 were found exclusively on the north side, 100 on the southern slope and 100 occurred in both strands. The exclusive species and more frequent on the north side were Brosimum guianense e Annona cacans, Zollernia ilicifolia, Couratari pyramidata, Lecythis pisonis e Gallesia integrifolia. On the southern slope, the exclusive species that stood out were Cariniana estrellensis, Cabralea canjerana, Eugenia microcarpa. Cluster analysis among the ten areas indicated, in general, greater similarity due to the proximity between areas than for the orientation of the slope, however comparing the north and south closer together, it is observed that the highest diversity indices, most proportion of rare species and unique and the most advanced stages of succession were found on the southern slope. The cases where this did not happen were observed in areas closer to the urban boundaries that regardless of the slope were less floristic diversity. The diameter distribution model presented inverted J, with a diameter range quite variable between areas. No pattern was found between the diameter distribution and orientation of the slope. Comparing the flora of Pedra Branca with other forest areas in Rio de Janeiro, there was generally a low floristic similarity. The major floristic identity occurred with the work in-house Pedra Branca, Serra da Tiririca, and Tijuca Forest. Works out of the city showed floristic similarity below 25%. The high diversity of the studied area is a reflection of its high environmental heterogeneity, related to differences in altitude, slope orientation, successional stage and history of use, which puts the Pedra Branca as a strategic area for species conservation in Rio de Janeiro. / Este trabalho teve como objetivo avaliar a estrutura e a flor?stica do estrato arbustivo e arb?reo em ?reas de encostas norte e sul, na por??o meridional do maci?o da Pedra Branca, Rio de Janeiro, RJ. Foi testada a hip?tese que diferentes orienta??es de vertente podem influenciar a estrutura e a flor?stica da vegeta??o. Em uma ?rea amostral de 9.700 m2, distribu?das em dez ?reas, foram inventariados 1.508 indiv?duos, distribu?dos em 324 esp?cies, 154 g?neros e 52 fam?lias. As fam?lias mais ricas em esp?cies na foram: Myrtaceae, Lauraceae, Fabaceae, Rubiaceae e Euphorbiaceae. O ?ndice de Diversidade de Shannon- Wiener (H?) foi de 5,093 nats/indiv., e a equabilidade (J) foi de 0,881. Na estrutura horizontal as esp?cies Joannesia princeps, Piptadenia gonoacantha e Pseudopiptadenia contorta, Meternichia princeps, Apuleia leiocarpa, Astrocaryum aculeatissimum, Chrysophyllum flexuosum alcan?aram o maior valor de import?ncia fitossociol?gico. A an?lise fitossociol?gica de cada ?rea indicou importantes varia??es estruturais e flor?sticas, com tend?ncia ? maior diversidade ser encontrada nas ?reas de maior altitude e mais distantes do per?metro urbano. Das 324 esp?cies encontradas no trabalho, 124 ocorreram exclusivamente na vertente norte, 100 na vertente sul e 100 ocorreram em ambas as vertentes. As esp?cies exclusivas e mais freq?ente na vertente norte foram o Brosimum guianense e Annona cacans, Zollernia ilicifolia, Couratari pyramidata, Lecythis pisonis e Gallesia integrifolia. Na vertente sul, as esp?cies exclusivas que mais se destacaram foram Cariniana estrellensis, Cabralea canjerana, Eugenia microcarpa. A an?lise de agrupamento entre as dez ?reas indicou, em geral, maior semelhan?a em decorr?ncia da proximidade entre ?reas do que pela orienta??o da encosta, entretanto comparando as vertentes norte e sul mais pr?ximas, observase que os maiores ?ndices de diversidade, a maior propor??o de esp?cies raras e exclusivas e os est?gios de sucess?o mais avan?ados foram encontradas na vertente sul. Os casos em que isso n?o ocorreu foram observados nas ?reas mais pr?ximas ao per?metro urbano que, independente da vertente apresentaram menor diversidade flor?stica. A distribui??o diam?trica apresentou modelo do J invertido, sendo a amplitude diam?trica bastante vari?vel entre ?reas. N?o foi encontrado um padr?o entre distribui??o diam?trica e a orienta??o da encosta. Comparando a flor?stica do trecho estudado do Maci?o da Pedra Branca com outras ?reas florestais do Rio de Janeiro, observou-se uma baixa similaridade flor?stica. A maior identidade flor?stica ocorreu com trabalhos realizados na pr?pria Pedra Branca, na Serra da Tiririca, e na Floresta da Tijuca. Trabalhos fora do munic?pio apresentaram similaridade flor?stica inferior a 25%. A elevada diversidade da ?rea estudada ? reflexo da sua alta heterogeneidade ambiental, relacionada a diferen?as na altitude, orienta??o de encosta, est?gio sucessional e hist?rico de uso, o que coloca a Maci?o da Pedra Branca como ?rea estrat?gica para conserva??o de esp?cies do munic?pio do Rio de Janeiro.
92

Estrutura da popula??o de Coleodactylus natalensis Freire, 1999 (Squamata: Sphaerodactylidae) no Parque Estadual Dunas de Natal, Rio Grande do Norte, Brasil

Lisboa, Carolina Maria Cardoso Aires 26 May 2008 (has links)
Made available in DSpace on 2014-12-17T14:10:18Z (GMT). No. of bitstreams: 1 CarolinaMCAL.pdf: 705892 bytes, checksum: 2a31e2f6fe2a3d439e931aaeb7c530eb (MD5) Previous issue date: 2008-05-26 / Coleodactylus natalensis Freire, 1999, an endemic species of Atlantic Forest fragments around the Natal municipality, Rio Grande do Norte State, Brazil, has as type locality the Parque Estadual Dunas de Natal (05?48 S to 05?53 S and 35?09 W to 35?12 W), one of the largest restinga (herb and shrub association on sand dunes along the Brazilian coastline) associate fragment, surrounded by urban zone, placed on setentrional Atlantic Forest limits. We made estimates on populational density, spatial distribution, habitat and microhabitat preferences and feeding ecological aspects like sazonal and sexual variations on diet, prey electivities and niche breadth. We randomly sampled ninety-six 50m2 quadrants in each of the four habitats identified in the study area. Were collected 49 specimens and their stomach contents were analyzed; prey items found were correlated with leaf-litter invertebrates from habitat samples. We found a 98,5 ? 75,5 individuals/ha density, in grouped distribution pattern on densest habitats and random distribution on others habitats. This species lives mostly on leaf-litter in forest habitats, in higher humidity points, with lower temperatures, deeper leaf litter and lower sea level elevations than the randomly chosen points in the study area. Isopoda and Aranae were the most important prey categories in numeric, frequency and volumetric terms. Niche breadth has an intermediate value and was variable in sexual and in habitat terms. There was no correlation between morfometric measures and prey size on diet. The C. natalensis population studied seems to be diet opportunist, although selects larger prey items. The Parque Estadual das Dunas do Natal has several indications of anthropic pressure from the surrounding urban area that may affects the local C. natalensis population. Thus, the fragility of this species calls for urgent conservation efforts / Coleodactylus natalensis Freire, 1999, esp?cie end?mica de remanescentes de Mata Atl?ntica do Estado do Rio Grande do Norte, Brasil, tem como localidade-tipo o Parque Estadual Dunas de Natal (05?48 S a 05?53 S e 35?09 W a 35?12 W), um dos maiores remanescentes associados a restingas, cercado por zona urbana, situado no limite setentrional da Mata Atl?ntica. Foram realizadas estimativas de densidade populacional, distribui??o espacial, prefer?ncias de h?bitat e microh?bitat e aspectos da ecologia alimentar, tais como varia??es sazonais e entre sexos de dieta, eletividade de presas e largura de nicho. Amostramos aleatoriamente 96 quadrantes de 50m2 em cada um dos quatro h?bitats identificados na ?rea. Foram coletados 49 exemplares, que tiveram seus conte?dos estomacais analisados; os itens de presa encontrados foram correlacionados com amostras de invertebrados ed?ficos obtidas no ambiente. Encontramos uma densidade m?dia de 98,5 ? 75,5 indiv?duos/ha, com distribui??o agrupada nos h?bitats de maior densidade e rand?mica nos demais. A esp?cie habita preferencialmente o folhi?o de h?bitats de mata, em pontos mais ?midos, temperaturas mais amenas, folhi?o mais denso e menores eleva??es em rela??o ao n?vel do mar do que a m?dia da ?rea de estudo. As categorias de presa mais importantes na dieta foram Isopoda e Aranae. A largura de nicho foi m?dia e variou sexualmente e entre os h?bitats. N?o houve correla??o entre medidas morfom?tricas e tamanho das presas consumidas. A popula??o de C. natalensis estudada parece ser oportunista em termos de dieta, embora selecione presas relativamente maiores. O Parque das Dunas ? uma ?rea que sofre diversos tipos de press?o antr?pica que podem afetar a popula??o de C. natalensis. Deste modo, a fragilidade desta esp?cie na ?rea denota urg?ncia por medidas conservacionistas
93

Rubiaceae em um remanescente de floresta atl?ntica no Rio Grande do Norte, Brasil

M?l, Daniela Freu de Figueiredo 26 March 2010 (has links)
Made available in DSpace on 2014-12-17T14:10:20Z (GMT). No. of bitstreams: 1 DanielaFFM_DISSERT.pdf: 773191 bytes, checksum: 60b37210d19394ff5d3a3c0c9bfb1365 (MD5) Previous issue date: 2010-03-26 / Empresa de Pesquisa Agropecu?ria do Rio Grande do Norte / O presente trabalho consiste no levantamento taxon?mico da fam?lia Rubiaceae Juss., em um remanescente de floresta atl?ntica no estado do Rio Grande do Norte, ?rea conhecida localmente como Mata do Jiqui (5? 46' S e 35? 12' W). A Mata do Jiqui est? situada em uma fazenda pertencente ? Empresa de Pesquisa Agropecu?ria do Rio Grande do Norte (EMPARN) no munic?pio de Parnamirim e ocupa uma ?rea de 79 ha. A vegeta??o da ?rea ? classificada como Floresta Estacional Semidecidual, pertencendo ao dom?nio Mata Atl?ntica e o solo como Neossolos Quartizar?nicos ?rticos Latoss?licos. Este estudo foi baseado em an?lises morfol?gicas comparativas, utilizando amostras obtidas em campo no per?odo de setembro/2008 a setembro/2009 e cole??es herborizadas pertencentes ao acervo dos Herb?rios UFRN (Universidade Federal do Rio Grande do Norte) e Prof. Lauro Pires Xavier JPB (Universidade Federal da Para?ba). Foram registradas 15 esp?cies pertencentes a 12 g?neros. Os g?neros mais representativos foram Diodella Small. (3) e Chiococca P. Browne (2); e os demais, Alseis Schott, Borreria G. Mey., Cordiera A. Rich. Ex DC., Guettarda L., Margaritopsis C. Wright , Mitracarpus Zucc. ex Schult. & Schult. f., Psychotria L, Richardia L., Staelia Cham. & Schltdl. e Tocoyena Aubl., com uma esp?cie cada. Os principais caracteres utilizados para separar as esp?cies foram ? forma das est?pulas e os tipo e/ou posi??o das infloresc?ncias. Quanto ? distribui??o dos t?xons na ?rea de estudo, as esp?cies herb?ceas como Richardia grandiflora (Cham & Schltdl.) Steud, Diodella apicullata (Willd. ex Roem. & Schult.) Delprete, Spermacoce verticillata (L.) e Diodella sp, foram amplamente registradas nas ?reas de bordas onde existe intensa luminosidade, enquanto Mitracarpus hirtus (L) DC. e Spermacoce latifolia Aubl. se desenvolvem em ?reas mais sombreadas. J? Staelia aurea K. Schum. apresentou distribui??o mais restrita, conhecida de alguns indiv?duos em um ?nico local. Psychotria bahiensis DC. e Margaritopsis carrascoana (Delprete & E. B. Souza) C.M. Taylor & E. B. Souza, foram amplamente encontradas tanto no interior da floresta como nas bordas onde h? sombreamento. Alseis pickelii Pilg. & Schmale, ? um dos principais componentes arb?reos, contribuindo com a forma??o do dossel; j? os demais t?xons foram encontrados tanto nas bordas quanto no interior da mata. S?o apresentadas chaves para g?neros e esp?cies, descri??es morfol?gicas, ilustra??es, coment?rios sobre afinidades taxon?micas, distribui??o geogr?fica, dados fenol?gicos e ecol?gicos dos t?xons
94

An?lise dos remanescentes de mata atl?ntica do Estado do Rio Grande do Norte : uma perspectiva em alta resolu??o

Maciel, Luiz Vicente Burle 08 July 2011 (has links)
Made available in DSpace on 2014-12-17T14:33:05Z (GMT). No. of bitstreams: 1 LuizVBM_DISSERT.pdf: 1648951 bytes, checksum: a7707da0afbbaf8f737a2bec45324476 (MD5) Previous issue date: 2011-07-08 / The habitat loss and fragmentation are considered the main threats to the biodiversity. These threats operate at the landscape level, which drives the need to manage entire landscapes, not just its components. Although systematic monitoring of the Atlantic Forest biome has been ongoing since the late eighties, current data on forest fragmentation for the sub-region of Pernambuco are practically nonexistent. This study aimed to map out, with high spatial resolution, the remnants of Atlantic forest in Rio Grande do Norte, and conduct a landscape level analysis. The results show that the landscape is highly fragmented, where about 13.6% to 17% of biome remains. Most of the fragments is less than 10 ha, while a few fragments have area larger than 100 ha. Although the high degree of fragmentation, the average distance between fragments found was small (128 m), this estimate is lower than has been observed for the biome (1440m). There is evidence that abrupt changes in the quantification of landscape structure can occur when one observes the fragmentation at high spatial resolution. The results presented here can be used in management actions, in order to make the scenario more conducive to maintaining biodiversity. / A perda e fragmenta??o de habitat s?o consideradas as principais amea?as a biodiversidade. Essas amea?as atuam ao n?vel da paisagem, o que impele a necessidade de manejar paisagens por inteiro e n?o somente suas componentes. Embora o acompanhamento sistem?tico do bioma Mata Atl?ntica venha sendo feito desde o final da d?cada de oitenta, dados atualizados sobre fragmenta??o florestal para a sub-regi?o de Pernambuco s?o praticamente inexistentes. O presente estudo teve como objetivo mapear, sobre imagens de alta resolu??o espacial, os remanescentes do bioma Mata Atl?ntica no estado do Rio Grande do Norte e conduzir uma an?lise ao n?vel de paisagem. Os resultados mostram que a paisagem encontra-se altamente fragmentada, onde restam cerca 13,6% a 17% dos remanescentes florestais do bioma. A grande maioria dos fragmentos ? menor do que 10 ha, enquanto poucos fragmentos possuem ?rea maior do que 100 ha. Embora seja elevado o grau de fragmenta??o, a dist?ncia m?dia entre fragmentos encontrada foi pequena (128 m), essa estimativa ? menor do que a que tem sido observada para o bioma (1440m). H? ind?cios de que mudan?as bruscas na quantifica??o da estrutura da paisagem podem ocorrer quando se observa a fragmenta??o em alta resolu??o espacial. Os resultados aqui apresentados podem ser utilizados em a??es de manejo, com vistas a tornar o cen?rio mais prop?cio ? manuten??o da biodiversidade.
95

A argumenta??o na peti??o inicial

Louren?o, Maria das Vit?rias Nunes Silva 10 October 2008 (has links)
Made available in DSpace on 2014-12-17T15:06:43Z (GMT). No. of bitstreams: 1 MariaVNSL.pdf: 696006 bytes, checksum: b33a1881a975a3aacaaecaff3cb57e72 (MD5) Previous issue date: 2008-10-10 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / This research investigates current sense effects at the use of linguistic resources of the argument in a corpus constituted by juridical pieces (Initial Petitions), that gave opportunity to actions originated from the Civil Special Court of the District of Currais Novos-RN. For this purpose it was established a relation between the Law and the Linguistics, mediated by the focus of the Argumentative Semantics, emphasizing, in a special way, the use of argumentative operators, which inserted in the own language, in its grammar, assume the orientation of the speech and the modalizers use, important mechanisms in the construction of the sense of the text and in the signalling in the way as that that one say is said,. This way, we began the investigation of that gender choosing as study object the section of the facts , that comprehends a part of Initial Petition where is explanted the narration of events that gave margin to the proposal for the Action. In face of the study object and the aim to be reached it was appealed, methodologically, to the notion of Rhetoric since from the classic antiquity to the emergence of the New present Rhetoric in Perelman and Olbrechts-Tyteca (2005) that, at the present time, is inserted in the studies of the Pragmatic connected to the central theses of the Ducrot s thinking (1977, 1980, 1987). Such referential allowed us to a better understanding about the production of the juridical speech on the part of the operators of the Law, as well as, to analyze in way wide the current sense effects from the use of argument linguistic marks the juridical speech. The data showed that such marks are indispensable elements to the construction of the textual web, particularly when in the range of the juridical argumentation, since they direct the speech for certain conclusions. However, we have observed that in the texts produced by the lawyers the use of those linguistic resources not always takes place in an appropriate way. The texts analyzed have also showed that it is possible to unmask, through the linguistic resources, the argumentative strategy employed by the authors for convincing of the magistrate, making evident that language is more than a system of signs, which it makes possible to see beyond the limit of the words and statements. Finally, we have verified that the categories analyzed, when used appropriately, are elements that engender argumentative maneuvers of effectiveness in the juridical text, being fundamental pieces which give argumentative strength the text, making the speech to move forward, not only the juridical, but the speech produced in any domain of the knowledge / Esta pesquisa investiga efeitos de sentido decorrentes do uso de recursos ling??sticos da argumenta??o em um corpus constitu?do por pe?as jur?dicas (Peti??es Iniciais), que ensejaram a??es oriundas do Juizado Especial C?vel da Comarca de Currais Novos (RN). Para tanto, estabelecemos uma rela??o entre o Direito e a Ling??stica, mediada pelo enfoque da Sem?ntica Argumentativa, focalizando, de modo especial, o uso de operadores argumentativos, os quais insertos na pr?pria l?ngua, na sua gram?tica, assumem a orienta??o do discurso e o uso de modalizadores, mecanismos importantes na constru??o do sentido do texto e na sinaliza??o do modo como aquilo que se diz ? dito. Desta maneira, iniciamos a investiga??o deste g?nero elegendo como objeto de estudo a se??o dos fatos , que compreende a parte da Peti??o Inicial onde ? explicitada a narra??o dos eventos que deram margem ? propositura da A??o. Em face do objeto de estudo e objetivo a serem alcan?ados recorremos, metodologicamente, ? no??o de Ret?rica desde a antiguidade cl?ssica at? o aparecimento da Nova Ret?rica presente em Perelman e Olbrechts-Tyteca (2005), que, na atualidade, est? compreendida nos estudos da Pragm?tica e conectada ?s teses centrais do pensamento de Ducrot (1977, 1980, 1987). Tais referenciais nos permitiram uma melhor compreens?o da produ??o do discurso jur?dico por parte dos operadores do Direito, bem como, analisar de forma ampla efeitos de sentidos decorrentes do uso de marcas ling??sticas da argumenta??o no discurso jur?dico. Os dados mostraram que tais marcas constituem-se elementos indispens?veis ? constru??o do tecido textual, particularmente, no ?mbito da argumenta??o jur?dica, pois encaminham o discurso para determinadas conclus?es. Contudo, observamos que nos textos produzidos pelos advogados, o uso desses recursos ling??sticos nem sempre ocorre de forma adequada. Os textos analisados mostraram tamb?m que ? poss?vel desvendar, atrav?s dos recursos ling??sticos, as estrat?gias argumentativas empregadas pelos autores para convencimento do magistrado, tornando evidente que a linguagem ? mais que um sistema de signos, que ela permite enxergar al?m do limite das palavras e enunciados. Por fim, constatamos que as categorias analisadas, quando usadas, adequadamente, s?o elementos que engendram manobras argumentativas de efic?cia no texto jur?dico, sendo pe?as fundamentais, atribuidoras de for?a argumentativa ao texto, fazendo o discurso avan?ar, n?o s? o jur?dico, mas, aquele produzido em qualquer dom?nio do conhecimento
96

Implica??es discursivas das express?es idiom?ticas sob a ?tica da an?lise construcional do discurso

Silva, Vanilton Pereira da 01 December 2016 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-03-28T18:59:13Z No. of bitstreams: 1 VaniltonPereiraDaSilva_TESE.pdf: 1513062 bytes, checksum: 12094486ec871ffa836a20320f965759 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-03-28T21:27:53Z (GMT) No. of bitstreams: 1 VaniltonPereiraDaSilva_TESE.pdf: 1513062 bytes, checksum: 12094486ec871ffa836a20320f965759 (MD5) / Made available in DSpace on 2017-03-28T21:27:53Z (GMT). No. of bitstreams: 1 VaniltonPereiraDaSilva_TESE.pdf: 1513062 bytes, checksum: 12094486ec871ffa836a20320f965759 (MD5) Previous issue date: 2016-12-01 / Nesta tese, investigo o papel das express?es idiom?ticas no processo de constru??o de sentido e suas implica??es no discurso. Para isso, parto do pressuposto de que a aplica??o do Modelo de Gram?tica de Constru??o Corporificada na an?lise de idiomatismos, em contextos espec?ficos de uso, fornece subs?dios ? compreens?o do fen?meno estudado, pois evidencia: como frames, esquemas e proje??es metaf?ricas se integram na produ??o de especifica??es sem?nticas (semspec); como essas semspec s?o resolvidas no ?mbito dos contextos situacional e discursivo; e de que maneira as infer?ncias s?o produzidas durante o processamento discursivo. Nessa empreitada, recorro ?s no??es de categoriza??o (LAKOFF, 1987; FELDMAN, 2006), constru??es (BERGEN, CHANG, 2003, 2005), frames (LAKOFF, 2004; DUQUE, 2015), framing (LAKOFF, 2004), esquemas (LAKOFF, 1987; JOHNSON, 1987; DUQUE, 2015), met?foras (LAKOFF, JOHNSON, 1980, 1999; LAKOFF, 2008), contexto (VAN DIJK, 2012), corporalidade (LAKOFF, JOHNSON, 1999; BERGEN, 2005, 2010), affordances (GIBSON, 1977, 1979) e idiomaticidade (FILLMORE, KAY, O?CONNOR, 1988; SILVA, 2012). A hip?tese defendida ? a de que as express?es idiom?ticas ajustam um conjunto de mapeamentos metaf?ricos com base no framing, processo de modelagem de frames, por meio do qual o discurso ? estruturado. O corpus deste trabalho ? constitu?do pelas express?es idiom?ticas ?abandonar o barco?, ?chutar o balde?, ?agarrar com unhas e dentes? e ?filho de peixe peixinho ?? distribu?das em 15 textos retirados da internet por meio do mecanismo de busca Google. A metodologia utilizada ? de cunho qualitativo, uma vez que permite a realiza??o de uma an?lise emp?rica dos dados, sem a preocupa??o de recorrer a informa??es quantitativas, e se alicer?a no Modelo de An?lise Construcional, que apresenta um formalismo de an?lise lingu?stica feito especificamente para compor uma modelagem de constru??o de sentido baseada em simula??o. As informa??es obtidas na an?lise indicam que as express?es idiom?ticas n?o s? associam significados convencionalizados e esquem?ticos, mas tamb?m integram elementos como a??es, infer?ncias e abstra??es, influenciando a organiza??o discursiva e os processos de constru??o de sentido dos textos. / In this thesis, we investigate the role of idiomatic expressions in the process of meaning construction and its implications for speech. To that end, we assume that the application of the Grammar Model for Embodied Construction in the analysis of idiomatisms, in specific contexts of use, provides subsidies for the understanding of the studied phenomenon, since it highlights the way in which frames, schemes and metaphorical projections are integrated in the production semantic specifications (semspec); the way in which these ?semspec? are addressed in the scope of the situational and discursive contexts; and the way in which the inferences are produced throughout the discursive processing. In this work, we rely on the notions of categorization (LAKOFF, 1987; FELDMAN, 2006), constructions (BERGEN, CHANG, 2003, 2005), frames (LAKOFF, 2004; DUQUE, 2015), framing (LAKOFF, 2004), schemes (LAKOFF, 1987; JOHNSON, 1987; DUQUE, 2015), metaphors (LAKOFF, JOHNSON, 1980, 1999; LAKOFF, 2008), context (VAN DIJK, 2012), corporeality (LAKOFF, JOHNSON, 1999; BERGEN, 2005, 2010), affordances (GIBSON, 1977, 1979) and idiomaticity (FILLMORE, KAY, O?CONNOR, 1988; SILVA, 2012). The advocated hypothesis claims that idiomatic expressions organize a set of metaphorical mappings based on framing, i.e., the framework modeling process, through which the speech is structured. The corpus of this work is made up of the Portuguese idiomatic expressions ?abandonar o barco?, ?chutar o balde?, ?agarrar com unhas e dentes? and ?filho de peixe peixinho ??, which are distributed in 15 texts extracted from the internet by means of the Google search engine. The employed methodology has a qualitative nature, as it enables the accomplishment of an empirical analysis of data, without the worry about relying on quantitative information, and is underpinned by the Model of Constructional Analysis, which has a formalism of linguistic analysis specifically made to compose a simulation-based modeling of meaning construction. The information obtained in the analysis points out that idiomatic expressions not only associate conventionalized and schematic meanings, but also integrate elements such as actions, inferences and abstractions, thereby influencing the discursive organization and the processes of meaning construction of texts.
97

Caracteriza??o fitossociologica de um fragmento de floresta estacional decidual relacionado ao gradiente de altitude em Maca?ba-RN

Costa, Heloise Andrielly Nascimento 20 February 2017 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-07-04T14:27:11Z No. of bitstreams: 1 HeloiseAndriellyNascimentoCosta_DISSERT.pdf: 1809358 bytes, checksum: a0116fb35021db655e6b0670cf1dfe83 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-07-14T12:44:57Z (GMT) No. of bitstreams: 1 HeloiseAndriellyNascimentoCosta_DISSERT.pdf: 1809358 bytes, checksum: a0116fb35021db655e6b0670cf1dfe83 (MD5) / Made available in DSpace on 2017-07-14T12:44:57Z (GMT). No. of bitstreams: 1 HeloiseAndriellyNascimentoCosta_DISSERT.pdf: 1809358 bytes, checksum: a0116fb35021db655e6b0670cf1dfe83 (MD5) Previous issue date: 2017-02-20 / A delimita??o das Florestas Estacionais deve ser realizada incluindo v?rios aspectos, como solo, relevo e vegeta??o. No Nordeste brasileiro, a Floresta Estacional Decidual ocorre em zona de contato entre a Caatinga, o Cerrado e a Mata Atl?ntica, sendo faixas estreitas e transicionais. No RN ocorre uma versatilidade florestal entre esses ecossistemas. A varia??o de altitude ? um fator importante de mudan?as de padr?es vegetacionais, no entanto pouco estudada em florestas nacionais e locais. O estudo foi realizado em uma ?rea de floresta decidual no munic?pio de Maca?ba. Esta foi dividida em 4 cotas, com diferen?a de 19 m de altitude entre elas. Foram coletados dados flor?sticos e fitossociol?gicos. Foi inventariado um total de 449 indiv?duos distribu?dos em 69 esp?cies, 49 g?neros e 36 fam?lias, sendo a fam?lia mais representativa a Fabaceae com 11 esp?cies e 164 indiv?duos, seguidas por Myrtaceae (10 esp?cies e 98 indiv?duos) e Malpighiaceae (4 esp?cies e 10 indiv?duos). As esp?cies Chamaecrista ensiformis (Vell.) H.S. Irwin & Barneby, Guapira laxa (Netto) Furlan e Zanthoxylum syncarpum Tul. obtiveram os maiores ?ndices Fr: 50, 45 e 50 e VI: 25,11%; 17,09% e 19,58% respectivamente. Nenhuma esp?cie ocorreu ao longo de todo gradiente, havendo uma entrada e sa?da de t?xons constante. Os valores da DCA foram de -0,851 e - 6,8794; os ?ndices de J?, 0,8432, (C) 0,9533 E H?3,532; C2 apresentou os melhores valores para todos os ?ndices analisados, evidenciando um excelente estagio de conserva??o e fitofisionomia relacionada ? Mata Atl?ntica; C1 e C4, apesar da dist?ncia, apresentam fitofisionomia da Caatinga e do Cerrado, enquanto C3 apresenta t?xons de ampla distribui??o entre os biomas nacionais. Assim, observa-se uma significante dissimilaridade na estrutura vegetacional de modo suave e cont?nuo. / The delimitation of Deciduous Forests should be done including several aspects, such as soil, relief and vegetation. In the Brazilian Northeast, the Decidual Seasonal forest occurs in a contact zone between the Caatinga, the Cerrado and the Atlantic Forest, being narrow and transitional bands. In the RN there is a forest versatility between these ecosystems. The altitude variation is an important factor of changes in vegetation patterns, however not deeply studied in national and local forests. The study was carried out in an area of deciduous forest in the county of Maca?ba, which was divided into 4 zones with a difference of 19 m of altitude between them, floristic and phytosociological data were collected. A total of 449 individuals distributed in 69 species, 49 genus and 36 families were inventoried. Fabaceae family was the most representative one with 11 species and 164 individuals, followed by Myrtaceae (10 species and 98 individuals) and Malpighiaceae (4 species and 10 indivisuals). Chamaecrista ensiformis (Vell.) H.S. Irwin & Barneby, Guapira laxa (Netto) Furlan e Zanthoxylum syncarpum Tul species obtained the higher indexes Fr: 50, 45 e 50 e VI: 25,11%; 17,09% e 19,58% , repectively. No species occurred along the entire gradient, with a constant input and output of taxa, DCA values was -0,851 e -6,8794, the indexes de of J?0,8432 , (C) 0,9533 E H?3,532; C2 presented the best values for all analyzed indexes evidencing an excellent stage of conservation and phytosanation related to the Atlantic Forest. Ci and C4 in spite of the distance they present Phytophysiognomy of Caatinga and Cerado; While C3 presents taxa of wide distribution among the national biomes. Thus a significant dissimilarity in the vegetative structure is observed in a smooth and continuous way.
98

Influ?ncia da fragmenta??o na ocorr?ncia de tr?s primatas neotropicais amea?ados de extin??o no Nordeste do Brasil

Ferreira, Maryane Christina Silva Damasceno 15 May 2017 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-09-05T19:43:50Z No. of bitstreams: 1 MaryaneChristinaSilvaDamascenoFerreira_DISSERT.pdf: 1985945 bytes, checksum: 4b34af8968914e2c129f882e0b646c7d (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-09-15T21:12:45Z (GMT) No. of bitstreams: 1 MaryaneChristinaSilvaDamascenoFerreira_DISSERT.pdf: 1985945 bytes, checksum: 4b34af8968914e2c129f882e0b646c7d (MD5) / Made available in DSpace on 2017-09-15T21:12:45Z (GMT). No. of bitstreams: 1 MaryaneChristinaSilvaDamascenoFerreira_DISSERT.pdf: 1985945 bytes, checksum: 4b34af8968914e2c129f882e0b646c7d (MD5) Previous issue date: 2017-05-15 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / As esp?cies de primata brasileiros Callicebus barbarabrownae, Callicebus coimbrai e Sapajus xanthosternos est?o amea?adas de extin??o. Uma das causas desse cen?rio ? a fragmenta??o das ?reas de ocorr?ncia dessas esp?cies na Caatinga e Mata Atl?ntica. Nesse contexto, o presente estudo objetivou a) caracterizar os fragmentos com ocorr?ncia para cada uma das tr?s esp?cies; b) comparar os fragmentos da ?rea de ocupa??o com os demais fragmentos de sua extens?o de ocorr?ncia onde cada esp?cie est? inserida; c) compar?-los entre si quanto as caracter?sticas dos fragmentos, considerando as diferen?as inerentes a cada esp?cie e a cada bioma. Para identificar os fragmentos florestais da extens?o de ocorr?ncia de cada esp?cie e identificar os fragmentos com presen?a confirmada utilizou-se registros de ocorr?ncias das esp?cies obtidas atrav?s de levantamento bibliogr?fico e imagens de sat?lite de ?ndice de Vegeta??o da Diferen?a Normalizada (NDVI) disponibilizadas por Hansen et al (2013). Para caracterizar os fragmentos foram utilizadas v?rias m?tricas da paisagem de forma e isolamento. As tr?s esp?cies de primatas ocorreram usualmente em fragmentos pequenos, regulares e com bordas complexas. Entretanto, quando se comparou com as suas respectivas ?reas de extens?o de ocorr?ncia, as tr?s esp?cies estudadas usualmente ocorreram em fragmentos com maior ?rea, forma mais regular, bordas mais complexas e muito isolados, demonstrando que essas caracter?sticas do fragmento s?o importantes para a ocorr?ncia desses primatas. Para C. coimbrai o tamanho do fragmento vizinho mais pr?ximo mostrou-se mais importante que o isolamento. Seus fragmentos com ocorr?ncia tiveram maior ?ndice de proximidade que os fragmentos de sua extens?o de ocorr?ncia, o que infere em uma maior presen?a de fragmentos na matriz. Dentre as caracter?sticas analisadas dos fragmentos a forma (per?metro/?rea e complexidade da borda) foi a mais determinante na ocorr?ncia dessas tr?s esp?cies de primatas em ambientes fragmentados. Depois da forma, as vari?veis explicativas mais importantes foram ?rea e isolamento (para C. coimbrai). Ao comparar as tr?s esp?cies, observou-se que C. barbarabrownae habita fragmentos menores, mais regulares, com bordas menos complexas e mais isolados que as outras duas esp?cies, possivelmente por s? habitar um bioma com diferente hist?rico de ocupa??o e altera??o, a Caatinga, enquanto as outras duas esp?cies que ocorrem predominantemente ou somente na Mata Atl?ntica. C. coimbrai e S. xanthosternos apresentaram fragmentos com ocorr?ncia com caracter?sticas de forma e isolamento semelhantes, possivelmente por habitarem um mesmo bioma altamente fragmentado, embora tenham diferen?as tanto no uso como em requerimentos de recursos. Portanto, esses tr?s primatas requerem a cria??o de unidades de conserva??o que protejam fragmentos que tenham as caracter?sticas de forma, ?rea e isolamento que determinam suas presen?as e a cria??o de corredores ecol?gicos para aumentar a conectividade entre os fragmentos, visto o grande isolamento dos fragmentos de suas respectivas ?reas de ocupa??o. / The species of Brazilian primates Callicebus barbarabrownae, Callicebus coimbrai and Sapajus xanthosternos are at risk of extinction. One of the causes of this scenario is the fragmentation of the areas of occurrence of these species in the Caatinga and Mata Atl?ntica. In this context, the present study has as objective a) characterize the fragments with occurrence to each one of these three species; b) compare the fragments of the area of occupation with the other of its extension of occurrence where each specie is covered; c) compare the three species about the characteristics of the fragments, taking the inherent differences to each specie and each biome. To identify the forest fragments of the extension of occurrence of each species and identify the fragments with confirmed presence it was utilized records of occurrence of the species and images of satellite of the Normalized Difference Vegetation Index (NDVI) shared by Hansen at al (2013). To characterize the fragments were utilized several metrics of the landscape, of form and of isolation. These three species of primates usually occurred in small, regular and with complex borders fragments. However, when it was compared with their respective extension of occurrence areas, the three studied species usually occurred in fragments with bigger area, more regular form and more complex and too isolated borders, demonstrating that these primates do not occur by coincidence. To C. coimbrai the size of the nearest neighboring fragment showed as more important than isolation. Their fragments with occurrence have bigger rate of proximity than the fragments of extension of occurrence, what infer in a bigger presence of fragments in the matrix. Among the analyzed characteristics of the fragments, the form (perimeter/area and complexity of the border) was the most determined in the occurrence of these three species of primates in fragmented environments. After the form, the most important explanatory variables were area and isolation (to C. coimbrai). When the there species were compared, it was observed that C. barbarabrownae had inhabited smaller and more regular areas, with less complex borders and more isolated than other two species, possibly because of its inhabitation in Caatinga, when the other two species predominately or just occurred in Mata Atl?ntica. C. coimbrai and S. xanthosternos showed fragments with similar occurrence about their characteristics of form and isolation, possibly because they have inhabited the same over-fragmented habitat despite that they have differences not only in the use, as in the requirement of resources. Thus, these three primates require require the creation of unites of conservation that protect fragments that has the characteristics of form, area and isolation that determine their presences and the creation of ecological corridors to increase the connectivity among the fragments, that has seen the large isolation of the fragments in their respective areas of occupation.
99

An?lise quantitativa da subsid?ncia tect?nica na Bacia Potiguar

Lopes, Juliana Aparecida Gon?alves 01 August 2017 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-10-04T19:45:16Z No. of bitstreams: 1 JulianaAparecidaGoncalvesLopes_DISSERT.pdf: 6908423 bytes, checksum: adf870a414cc76ebcff90a78b5a86557 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-10-10T23:17:13Z (GMT) No. of bitstreams: 1 JulianaAparecidaGoncalvesLopes_DISSERT.pdf: 6908423 bytes, checksum: adf870a414cc76ebcff90a78b5a86557 (MD5) / Made available in DSpace on 2017-10-10T23:17:13Z (GMT). No. of bitstreams: 1 JulianaAparecidaGoncalvesLopes_DISSERT.pdf: 6908423 bytes, checksum: adf870a414cc76ebcff90a78b5a86557 (MD5) Previous issue date: 2017-08-01 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / A an?lise quantitativa da subsid?ncia tect?nica contribui para identifica??o dos mecanismos que formam as bacias sedimentares, uma vez que a configura??o tect?nica desempenha uma fun??o principal na evolu??o destas bacias. A Bacia Potiguar, localizada na Margem Equatorial Brasileira, apresenta sua evolu??o relacionada a processos de rifteamento complexos, implementados durante a abertura do Oceano Atl?ntico no Jur?ssico/Cret?ceo. Esses processos foram respons?veis pelo desenvolvimento de um rifte emerso abortado, e um rifte submerso, que evoluiu at? a ruptura crustal e forma??o da margem continental transformante. N?s aplicamos a t?cnica de backstripping para quantificar a subsid?ncia tect?nica durante as fases rifte e p?s-rifte da Bacia Potiguar, e analisar a varia??o espacial da subsid?ncia durante os dois eventos tect?nicos, sucessivos e distintos, respons?veis pela evolu??o da bacia. Os par?metros necess?rios para aplica??o desta metodologia foram obtidos por meio de linhas s?smicas 2D e dados de po?os explorat?rios. As curvas de subsid?ncia tect?nica apresentam per?odos com taxas de subsid?ncia moderadas (at? 300 m/Ma), que correspondem a evolu??o do Rifte Potiguar emerso (~141 a 128 Ma). A partir de 128 at? 118 Ma, as curvas apresentam taxas de subsid?ncia nulas para o rifte emerso, enquanto que, altas taxas de subsid?ncia tect?nica (acima de 300 m/Ma) foram registradas no rifte submerso. Durante a fase p?s-rifte, que ocorre a partir de 118 Ma, as taxas de subsid?ncia tect?nica diminu?ram exponencialmente para valores menores que 35 m/Ma, provavelmente relacionadas ? subsid?ncia termal. As taxas de subsid?ncia tect?nica nos v?rios setores do Rifte Potiguar durante as diferentes fases de rifteamento indicam falhamentos mais intensos na parte sul da falha de Carnaubais, ao longo das principais falhas de borda, e na regi?o sudeste do rifte submerso. Durante a fase p?s-rifte, as taxas de subsid?ncia tect?nica aumentam da por??o emersa para a submersa at? a regi?o da quebra da plataforma. As taxas mais altas de subsid?ncia do p?s-rifte (at? 35 m/Ma) est?o concentradas na regi?o central da por??o submersa, e podem estar relacionadas a processos litosf?ricos relacionados ? ruptura da crosta continental e espalhamento oce?nico. A varia??o nas taxas de subsid?ncia e no padr?o das curvas de subsid?ncia nos permitiu interpretar a assinatura tect?nica registrada pelas sequ?ncias sedimentares da Bacia Potiguar durante sua evolu??o. No rifte emerso, as curvas apresentaram taxas de subsid?ncia de at? 300m/Ma durante uma longa fase de rifteamento (13 Ma), o que confirmou o desempenho de um regime distensional nesta por??o. No rifte submerso, as curvas apresentaram taxas de subsid?ncia acima de 300 m/Ma em um intervalo de tempo mais curto (5 a 10 Ma), t?picas de bacias formadas por um regime transtensional. / The quantitative analysis of the tectonic subsidence sheds light on basin-forming mechanisms, since tectonic plate motions play the main role in the genesis of sedimentary basins. The Potiguar Basin, located in the Brazilian Equatorial Margin, presents an evolution related to a complex rifting process, implemented during the Atlantic Ocean opening in the Jurassic/Cretaceous. Different driving mechanisms were responsible for the onset of an aborted onshore rift and an offshore rift, which evolved to crustal rupture and formation of a continental transform margin. Therefore, we applied the backstripping method to quantify the tectonic subsidence during the rift and post-rift phases of the Potiguar Basin and to analyze the spatial variation of subsidence during the two successive and distinct tectonic events responsible for the basin evolution. The parameters required to apply this methodology were extracted from 2D seismic lines and exploratory well data. The tectonic subsidence curves present periods with moderate subsidence rates (up to 300 m/My), which correspond to the evolution of the onshore Potiguar Rift (~141 to 128 Ma). From 128 to 118 Ma, the curves show null subsidence rates in the onshore Potiguar Basin, whereas high subsidence rates (over 300 m/My) occurred in the offshore rift. The post-rift phase had begun at ca. 118 Ma (Aptian), when the tectonic subsidence drastically slowed down to less than 35 m/My, probably related to thermal subsidence. The tectonic subsidence rates in the various sectors of the Potiguar Rift during the different rift phases indicate more intense faulting in the southern portion of the onshore rift, along the main border faults, and in the southeastern portion of the offshore rift. During the post-rift phase, the tectonic subsidence rates increased from onshore to the offshore portion until the continental slope. The highest rates of post-rift subsidence (up to 35 m/My) are concentrated in the central region of the offshore portion, and may be related to lithospheric processes related to the continental crust rupture and oceanic seafloor spreading. The variation in subsidence rates and the pattern of subsidence curves allowed us to interpret the tectonic signature recorded by the sedimentary sequences of the Potiguar Basin during its evolution. In the onshore rift, the curves presented subsidence rates up to 300 m/My during a long-term rift phase (13 Ma), which confirmed an extensional regime in this portion. In the offshore rift, the curves presented high subsidence rates over 300 m/My in a shorter period (5 to10 My), typical of basins formed in a transtensional regime.
100

Efeitos da legisla??o na manuten??o de um trecho remanescente da Mata Atl?ntica no estado do Rio de Janeiro / Effects of the legislation in the maintenance of a Atlantic forest remaining fragment in the state of Rio de Janeiro

MOTTA, ?lvaro Freire da 12 August 2005 (has links)
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-06-29T18:21:50Z No. of bitstreams: 1 2005 - ?lvaro Freire da Motta.pdf: 4216645 bytes, checksum: 8b71082db76942e3cb61ca73c1dc6c87 (MD5) / Made available in DSpace on 2017-06-29T18:21:50Z (GMT). No. of bitstreams: 1 2005 - ?lvaro Freire da Motta.pdf: 4216645 bytes, checksum: 8b71082db76942e3cb61ca73c1dc6c87 (MD5) Previous issue date: 2005-08-12 / The present work makes an analysis of the forest and environmental legislation with focus in the Atlantic forest, and it evaluates the effects of that legislation in the maintenance of a remaining space of that bioma. The objectives of the work were: a) to survey and to discuss the legislation with focus in the Atlantic forest; b) to analyze the forest covering evolution and land use occurred among 1984-99 of a Atlantic forest remaining fragment in the state of Rio de Janeiro; c) to evaluate the effects of the forest and environmental legislation in fragment maintenance. A forest and environmental legislation survey was accomplished in the Commission of Defense of the environment of the Legislative Assembly of the State of Rio de Janeiro (ALERJ), through the environmental legislation program ISIGLA2000, besides search in ALERJ library and in legislation research internet sites; it was carried out a Atlantic forest remaining fragment mapping, using base maps supplied by the Division of Environmental Information of the Clerkship of environment of the City of Rio de Janeiro (SMAC) and from the Instituto Pereira Passos (IPP), were generated maps in the scale of 1:40.000 and information of forest covering and land use, in seven thematic classes, for five moments, in a 15 year-old period; finally, the pertinent legislation was confronted to the study area with the data resultants of the mapping classes. This analysis revealed that before the Forest Code of 1934 there was a concern with the forest conservation, even so in character strictly commercial; in the period between the codes: 1934-65 the published legal acts are linked fundamentally to the Forest Code, highlighting the creation of the Protecting Forests; starting from the New Forest Code the legislation is revealed liberal and consistent; pos-constitution of 1988 can stand out the alterations introduced in the Forest Code, the creation of IBAMA and the specific regulation of the use of the Atlantic forest. The analysis of the thematic mapping revealed a relative loss of forest in the studied area of 28% (2.337,1 ha), in 15 years, and a relative increment of 857% of the urbanization (5,1 ha). Confronting legislation with the mapping it reveals that previously to 1984 several legal acts had already been published; the legislation appeared in the period of 1984- 88 was unable to contain a loss of the forest covering of 505,6 ha; among 1988-92 the loss of the forest covering was of 99,1 ha; among 1992-96 the loss of the forests was worsened (838,9 ha), nevertheless the published legal acts; the same happened among 1996-99 (893,6 ha), being explained partly by a public distrust of the efficiency of the legislation. The main conclusions were: in the elapsed country history, six were the marked legal acts: the Forest Code (1934), the effective Forest Code (1965), the Law of the National Politics of the environment (1981), the Constitution of 1988, the Law of Environmental Crimes (1998) and the Law of the National System of Conservation of the Nature; it was effective the inclusion of the Atlantic forest as National Patrimony, in the Constitution of 1988; the studied Atlantic forest remaining fragment revealed a relative loss of 28% of the forest covering among 1984-99, and an extraordinary growth of 857% and 256% of urban and urban areas consolidated, respectively; the expressive number of legal acts published in the period 1984-99 was insufficient to maintain the forest covering in the studied Atlantic forest remaining fragment. / O presente trabalho faz uma an?lise da legisla??o florestal e ambiental com enfoque na Mata Atl?ntica, e avalia os efeitos dessa legisla??o na manuten??o de um trecho remanescente desse bioma. Os objetivos do trabalho foram: a) levantar e discutir a legisla??o com enfoque na Mata Atl?ntica; b) analisar a evolu??o da cobertura florestal e uso da terra ocorrida entre 1984-99 em um trecho remanescente da Mata Atl?ntica no estado do Rio de Janeiro; c) avaliar os efeitos da legisla??o florestal e ambiental na manuten??o desse trecho. Foi realizado um levantamento da legisla??o florestal e ambiental na Comiss?o de Defesa do Meio Ambiente da Assembl?ia Legislativa do Estado do Rio de Janeiro (ALERJ), atrav?s do programa ISIGLA2000 de legisla??o ambiental, al?m de busca na biblioteca da ALERJ e em sites de pesquisa de legisla??o; procedeu-se ao mapeamento de um trecho remanescente da Mata Atl?ntica do estado, tomando-se como base mapas fornecidos pela Divis?o de Informa??es Ambientais da Secretaria de Meio Ambiente da Cidade do Rio de Janeiro (SMAC) e pelo Instituto Pereira Passos (IPP), gerando-se mapas na escala de 1:150.000 e informa??es de cobertura florestal e uso da terra, em sete classes tem?ticas, para cinco momentos, num per?odo de 15 anos; finalmente, confrontou-se a legisla??o pertinente ? ?rea de estudo com os dados resultantes das classes de mapeamento. Esta an?lise revelou que antes do C?digo Florestal de 1934 havia uma preocupa??o com a conserva??o florestal, por?m em car?ter estritamente comercial; no per?odo interc?digos: 1934-65 os atos legais editados vinculam-se fundamentalmente ao C?digo Florestal, destacando a cria??o das Florestas Protetoras; a partir do Novo C?digo Florestal a legisla??o revela-se mais pr?diga e consistente; p?s-constitui??o de 1988 pode-se destacar as altera??es introduzidas no C?digo Florestal, a cria??o do IBAMA e a regulamenta??o espec?fica do uso da Mata Atl?ntica. Na an?lise dos mapeamentos tem?ticos revelou uma perda relativa de floresta na ?rea estudada de 28% (2.337,1ha), em 15 anos, e um acr?scimo relativo de 857% da urbaniza??o (5,1ha). O confronto da legisla??o com o mapeamento revelou que anteriormente a 1984 v?rios atos legais j? haviam sido editados; a legisla??o surgida no per?odo de 1984-88 foi incapaz de conter uma perda da cobertura florestal de 505,6ha; entre 1988- 92 a perda da cobertura florestal foi de 99,1ha; entre 1992-96 a perda das florestas foi agravada (838,9ha), n?o obstante os atos legais editados; o mesmo ocorreu entre 1996-99 (893,6ha), sendo explicado em parte por uma desconfian?a p?blica da efici?ncia da legisla??o. As principais conclus?es foram: no decorrer da hist?ria do pa?s, seis foram os atos legais marcantes: o C?digo Florestal (1934), o C?digo Florestal vigente (1965), a Lei da Pol?tica Nacional do Meio Ambiente (1981), a Constitui??o de 1988, a Lei de Crimes Ambientais (1998) e a Lei do Sistema Nacional de Unidades de Conserva??o ? SNUC (2000); foi tamb?m marcante a inclus?o da Mata Atl?ntica como Patrim?nio Nacional, na Constitui??o de 1988; o trecho remanescente da Mata Atl?ntica estudado revelou uma perda relativa de 28% da cobertura florestal entre 1984-99, e um extraordin?rio crescimento de 857% e 256% das ?reas urbana e urbana n?o consolidada, respectivamente; o expressivo n?mero de atos legais editados no per?odo 1984-99 revelou-se insuficiente para manter a cobertura florestal no trecho remanescente da Mata Atl?ntica estudado.

Page generated in 0.0726 seconds