Submitted by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2018-08-17T22:50:17Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) luciano_cavalcante_jesus_franca.pdf: 8536092 bytes, checksum: 448d28dd9ed3febc9eafc32bf9208be2 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2018-10-05T19:39:21Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) luciano_cavalcante_jesus_franca.pdf: 8536092 bytes, checksum: 448d28dd9ed3febc9eafc32bf9208be2 (MD5) / Made available in DSpace on 2018-10-05T19:39:21Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) luciano_cavalcante_jesus_franca.pdf: 8536092 bytes, checksum: 448d28dd9ed3febc9eafc32bf9208be2 (MD5) Previous issue date: 2018 / Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM) / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A degrada??o ambiental em seu contexto geral ? uma realidade presente em todo o Brasil, que vem desencadeando problemas de ordem ambiental, econ?mica e social, muitas vezes permanentes, outras contorn?veis dado o avan?o da pesquisa em restaura??o e conserva??o de ecossistemas degradados. Estudos de fragilidade ambiental potencial direcionam a compreens?o da susceptibilidade ? degrada??o em bacias hidrogr?ficas, e podem auxiliar na prioriza??o de ?reas no planejamento ambiental, ordenamento territorial, restaura??o, conserva??o e preserva??o florestal e de solos. O objetivo desta investiga??o cient?fica foi de realizar uma an?lise da fragilidade ambiental potencial da bacia hidrogr?fica do rio Jequitinhonha, na por??o do estado de Minas Gerais. A metodologia utilizada foi baseada no estabelecimento de graus de fragilidade, de baixo ? extremamente alto, a partir de avalia??o muticriterial de um conjunto de planos de informa??es ambientais: declividade do terreno, classes de solos, dom?nios geol?gicos, hierarquia de drenagens e pluviosidade. Aplicou-se o m?todo de hierarquiza??o para tomada de decis?es e determina??o da import?ncia dos crit?rios por meio do Analytic Hierarchy Process (AHP), bem como a obten??o do ?ndice e raz?o de consist?ncia da matriz AHP. Para os procedimentos de an?lises em planilhas de dados, utilizou-se o software Excel, e para as an?lises em plataforma SIG, o software ArcGis 10.3.1. A classe de fragilidade ambiental potencial com maior representatividade ? a denominada m?dia fragilidade, e ocorre em uma extens?o de 19.244,1 km?, equivalente a 30% da ?rea total da bacia hidrogr?fica, que ? de 66.319 km?. Uma ?rea de 12.430,57 km? (19,4%) da bacia apresenta fragilidade baixa, 18.540,93 km? (28,9%) sob levemente baixa, e as classe alta e extremamente alta, representam 10.519,63 km? (16,4%) e 3.416,15 km? (5,3%), respectivamente. A Raz?o de Consist?ncia (RC) calculada para a matriz de pondera??o de hierarquiza??o dos crit?rios para a ?lgebra de mapas, foi de 0,0781, dentro dos limites de coer?ncia e confiabilidade aceit?veis pela metodologia AHP. A condi??o de maior ou menor fragilidade ambiental potencial, revela-se principalmente ao grau de prote??o quanto a cobertura vegetal nativa, no contexto das formas de ocupa??o do territ?rio e impactos ambientais sob o qual a bacia hidrogr?fica est? sujeita, condi??es que direcionam ou n?o ? degrada??o dos solos. Destaca-se que, al?m dos resultados obtidos neste estudo, s?o necess?rias outras investiga??es que complementem e testem a combina??o de novos crit?rios, que englobem tamb?m distintos focos de aplicabilidade e tomadas de decis?o nas ci?ncias florestal, ambiental e agr?ria. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2018. / The environmental degradation in its general context is a reality present throughout Brazil, which has been unleashing environmental, economic and social problems, which are often permanent, others that are contrived due to the progress of research in restoration and conservation of degraded ecosystems. Potential environmental fragility studies guide the understanding of susceptibility to degradation in watersheds, and may assist in the prioritization of areas in environmental planning, land management, restoration, forest and soil conservation and preservation. The objective of this scientific investigation was to analyze the potential environmental fragility of the Jequitinhonha river basin in the state of Minas Gerais. The methodology used was based on the establishment of degrees of fragility, from low to extremely high, based on a multi-criteria assessment of a set of environmental information plans: terrain slope, soil classes, geological domains, drainage hierarchy and rainfall. The hierarchical method was applied for decision making and determination of the importance of the criteria through the Analytic Hierarchy Process (AHP), as well as obtaining the index and consistency ratio of the AHP matrix. For the analysis procedures in spreadsheets, the software Excel was used, and for the analyzes in platform GIS, the software ArcGis 10.3.1. The class of potential environmental fragility with greater representativeness is the denominated average fragility, and occurs in an extension of 19.244,1 km ?, equivalent to 30% of the total area of the watershed, that is of 66.319 km ?. An area of 12,430.57 km? (19.4%) of the basin presents low fragility, 18,540.93 km? (28.9%) under slightly low, and the upper and extremely high class represent 10,519.63 km? (16.4 %) and 3,416.15 km? (5.3%), respectively. The Consistency Ratio (RC) calculated for the hierarchy matrix of the criteria for map algebra was 0.0781, within the limits of coherence and reliability acceptable by the AHP methodology. The condition of greater or lesser potential environmental fragility is mainly due to the degree of protection of native vegetation cover, in the context of the forms of occupation of the territory and environmental impacts under which the river basin is subject, conditions that degradation of soils. In addition to the results obtained in this study, further research is required to complement and test the combination of new criteria, which also encompasses different foci of applicability and decision making in the forest, environmental and agrarian sciences.

Submitted by Luciano Fran?a (lucianodejesus@florestal.eng.br) on 2018-03-06T00:03:11Z No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Declaracao Orientadora.pdf: 1388830 bytes, checksum: e157d539359c6d1e74bcc641d6e7d190 (MD5) Disserta??o Luciano Cavalcante de Jesus Fran?a.pdf: 8643521 bytes, checksum: ad5a66f3b0d0e6337cfe0945a3405b26 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2018-03-06T12:06:00Z (GMT) No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Declaracao Orientadora.pdf: 1388830 bytes, checksum: e157d539359c6d1e74bcc641d6e7d190 (MD5) Disserta??o Luciano Cavalcante de Jesus Fran?a.pdf: 8643521 bytes, checksum: ad5a66f3b0d0e6337cfe0945a3405b26 (MD5) / Made available in DSpace on 2018-03-06T12:06:00Z (GMT). No. of bitstreams: 3 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Declaracao Orientadora.pdf: 1388830 bytes, checksum: e157d539359c6d1e74bcc641d6e7d190 (MD5) Disserta??o Luciano Cavalcante de Jesus Fran?a.pdf: 8643521 bytes, checksum: ad5a66f3b0d0e6337cfe0945a3405b26 (MD5) Previous issue date: 2018 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A degrada??o ambiental em seu contexto geral ? uma realidade presente em todo o Brasil, que vem desencadeando problemas de ordem ambiental, econ?mica e social, muitas vezes permanentes, outras contorn?veis dado o avan?o da pesquisa em restaura??o e conserva??o de ecossistemas degradados. Estudos de fragilidade ambiental potencial direcionam a compreens?o da susceptibilidade ? degrada??o em bacias hidrogr?ficas, e podem auxiliar na prioriza??o de ?reas no planejamento ambiental, ordenamento territorial, restaura??o, conserva??o e preserva??o florestal e de solos. O objetivo desta investiga??o cient?fica foi de realizar uma an?lise da fragilidade ambiental potencial da bacia hidrogr?fica do rio Jequitinhonha, na por??o do estado de Minas Gerais. A metodologia utilizada foi baseada no estabelecimento de graus de fragilidade, de baixo ? extremamente alto, a partir de avalia??o muticriterial de um conjunto de planos de informa??es ambientais: declividade do terreno, classes de solos, dom?nios geol?gicos, hierarquia de drenagens e pluviosidade. Aplicou-se o m?todo de hierarquiza??o para tomada de decis?es e determina??o da import?ncia dos crit?rios por meio do Analytic Hierarchy Process (AHP), bem como a obten??o do ?ndice e raz?o de consist?ncia da matriz AHP. Para os procedimentos de an?lises em planilhas de dados, utilizou-se o software Excel, e para as an?lises em plataforma SIG, o software ArcGis 10.3.1. A classe de fragilidade ambiental potencial com maior representatividade ? a denominada m?dia fragilidade, e ocorre em uma extens?o de 19.244,1 km?, equivalente a 30% da ?rea total da bacia hidrogr?fica, que ? de 66.319 km?. Uma ?rea de 12.430,57 km? (19,4%) da bacia apresenta fragilidade baixa, 18.540,93 km? (28,9%) sob levemente baixa, e as classe alta e extremamente alta, representam 10.519,63 km? (16,4%) e 3.416,15 km? (5,3%), respectivamente. A Raz?o de Consist?ncia (RC) calculada para a matriz de pondera??o de hierarquiza??o dos crit?rios para a ?lgebra de mapas, foi de 0,0781, dentro dos limites de coer?ncia e confiabilidade aceit?veis pela metodologia AHP. A condi??o de maior ou menor fragilidade ambiental potencial, revela-se principalmente ao grau de prote??o quanto a cobertura vegetal nativa, no contexto das formas de ocupa??o do territ?rio e impactos ambientais sob o qual a bacia hidrogr?fica est? sujeita, condi??es que direcionam ou n?o ? degrada??o dos solos. Destaca-se que, al?m dos resultados obtidos neste estudo, s?o necess?rias outras investiga??es que complementem e testem a combina??o de novos crit?rios, que englobem tamb?m distintos focos de aplicabilidade e tomadas de decis?o nas ci?ncias florestal, ambiental e agr?ria. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Ci?ncia Florestal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2018. / The environmental degradation in its general context is a reality present throughout Brazil, which has been unleashing environmental, economic and social problems, which are often permanent, others that are contrived due to the progress of research in restoration and conservation of degraded ecosystems. Potential environmental fragility studies guide the understanding of susceptibility to degradation in watersheds, and may assist in the prioritization of areas in environmental planning, land management, restoration, forest and soil conservation and preservation. The objective of this scientific investigation was to analyze the potential environmental fragility of the Jequitinhonha river basin in the state of Minas Gerais. The methodology used was based on the establishment of degrees of fragility, from low to extremely high, based on a multi-criteria assessment of a set of environmental information plans: terrain slope, soil classes, geological domains, drainage hierarchy and rainfall. The hierarchical method was applied for decision making and determination of the importance of the criteria through the Analytic Hierarchy Process (AHP), as well as obtaining the index and consistency ratio of the AHP matrix. For the analysis procedures in spreadsheets, the software Excel was used, and for the analyzes in platform GIS, the software ArcGis 10.3.1. The class of potential environmental fragility with greater representativeness is the denominated average fragility, and occurs in an extension of 19.244,1 km ?, equivalent to 30% of the total area of the watershed, that is of 66.319 km ?. An area of 12,430.57 km? (19.4%) of the basin presents low fragility, 18,540.93 km? (28.9%) under slightly low, and the upper and extremely high class represent 10,519.63 km? (16.4 %) and 3,416.15 km? (5.3%), respectively. The Consistency Ratio (RC) calculated for the hierarchy matrix of the criteria for map algebra was 0.0781, within the limits of coherence and reliability acceptable by the AHP methodology. The condition of greater or lesser potential environmental fragility is mainly due to the degree of protection of native vegetation cover, in the context of the forms of occupation of the territory and environmental impacts under which the river basin is subject, conditions that degradation of soils. In addition to the results obtained in this study, further research is required to complement and test the combination of new criteria, which also encompasses different foci of applicability and decision making in the forest, environmental and agrarian sciences.

Made available in DSpace on 2014-12-17T15:03:25Z (GMT). No. of bitstreams: 1 AnaBSS_DISSERT.pdf: 3113222 bytes, checksum: 373dd78ed760c50f019d386f79d16af0 (MD5) Previous issue date: 2009-12-21 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / Provide data and information on watershed becomes important since the knowledge of their physical characteristics, land use, etcetera, allows for better planning and sustainable use of economically, socially and environmentally in this area. The investigation of the physical environment has been commonly given with the use of geoprocessing, which has proved a very efficient tool. Within this context, this research aims at analyzing the river basin Puna? (located in the cities of Touros, Rio do Fogo and Pureza, state of Rio Grande do Norte) in several aspects, using geoprocessing as a tool of work, to provide information about the entire watershed. Specifically, this study aimed to update pre-existing maps, such as geological, geomorphological and land use, generating map of environmental vulnerability, under the aspect of erosion susceptibility of the area, generating map of legal incompatibility, identifying areas that are already being employed in breach of environmental legislation; propose solutions to the occupation of the river basin Puna?, focused on environmental planning. The methodology was based on the use of geoprocessing tools for data analysis and to make maps of legal incompatibility and environmental vulnerability. For the first map was taken into account the environmental legislation regarding the protection of watersheds. For the vulnerability analysis, the generated map was the result of crossing the maps of geology, geomorphology, soils and land use, having been assigned weights to different attributes of thematic maps, generating a map of environmental vulnerability in relation to susceptibility to erosion. The analysis results indicate that agriculture is the most significant activity in the basin, in total occupied area, which confers a high degree of environmental vulnerability in most of the basin, and some agricultural areas eventually develop in a manner inconsistent with Brazilian environmental legislation. It is proposed to consider deploying a measure of revitalization of the watershed in more critical areas and conservation through mitigation measures on the causes of environmental degradation, such as protection of water sources, protection and restoration of riparian vegetation, protection of permanent preservation areas, containment of erosion processes in general, and others listed or not in specific laws, and even the establishment of a committee of basins in the area / Fornecer dados e informa??es a respeito de bacias hidrogr?ficas se torna importante uma vez que o conhecimento de suas caracter?sticas f?sicas, de uso e ocupa??o do solo, etc., permite um melhor planejamento e uso sustent?vel do ponto de vista econ?mico, social e ambiental deste espa?o. A investiga??o do meio f?sico tem-se dado comumente com o uso de geotecnologias, o que tem se mostrado uma metodologia bastante eficaz. Dentro deste contexto, esta pesquisa tem por objetivo analisar a bacia hidrogr?fica do rio Puna? (inserida nos munic?pios de Touros, Rio do Fogo e Pureza, estado do Rio Grande do Norte), sob diversos aspectos, utilizando o geoprocessamento como ferramenta de trabalho, de forma a fornecer informa??es a respeito de toda a bacia hidrogr?fica em quest?o. Especificamente, este trabalho objetivou atualizar mapas pr?-existentes, de geologia, geomorfologia e uso e ocupa??o; gerar mapa de vulnerabilidade ambiental, sob o aspecto da susceptibilidade ? eros?o da ?rea; gerar mapa de incompatibilidade legal, identificando as ?reas que j? estejam sendo ocupadas em desconformidade com a legisla??o ambiental; propor solu??es para a ocupa??o da bacia hidrogr?fica do rio Puna?, voltadas para o planejamento ambiental. A metodologia baseou-se no uso de ferramentas de geoprocessamento para an?lise dos dados bem como para a confec??o dos mapas de incompatibilidade legal e vulnerabilidade ambiental. Para o primeiro mapa, foi levada em considera??o a legisla??o ambiental no que concerne a prote??o de bacias. Para a an?lise de vulnerabilidade, o mapa gerado foi fruto do cruzamento dos mapas de geologia, geomorfologia, solos e uso e ocupa??o, tendo sido atribu?dos pesos aos diferentes atributos dos mapas tem?ticos, gerando um mapa de vulnerabilidade ambiental no tocante ? susceptibilidade ? eros?o. Os resultados das an?lises indicam que a agricultura ? a atividade mais expressiva na bacia, em total de ?rea ocupada, o que confere um alto grau de vulnerabilidade ambiental na maior parte da bacia, sendo que algumas ?reas agr?colas acabam por se desenvolver de forma incompat?vel com a legisla??o ambiental brasileira. Prop?ese considerar a implanta??o de medida de revitaliza??o da bacia hidrogr?fica em ?reas mais cr?ticas e conserva??o atrav?s de medidas mitigadoras sobre as causas de degrada??o ambiental, como a prote??o de nascentes, prote??o e restaura??o da mata ciliar, prote??o de ?reas de preserva??o permanente, conten??o de processos erosivos em geral, dentre outros previstos ou n?o em leis espec?ficas, e ainda a instaura??o de um comit? de bacias na ?rea