O uso da terra e a vulnerabilidade ambiental na bacia hidrogr??fica do rio Sanabani no munic??pio de Silves - AM

Autor: Castro, Leandro Felix de, https://orcid.org/0000-0002-3883-5930
Přispěvatelé: Silva Neto, Jo??o C??ndido Andr?? da, Lima, Vilma Terezinha de Ara??jo, Vieira, Ant??nio F??bio Sabb?? Guimar??es
Jazyk: portugalština
Rok vydání: 2021
Předmět:
Zdroj: Biblioteca Digital de Teses e Dissertações da UFAM
Universidade Federal do Amazonas (UFAM)
instacron:UFAM
ISSN: 6784-6866
Popis: Submitted by LEANDRO CASTRO (leandrofelix27@gmail.com) on 2021-07-20T20:12:18Z No. of bitstreams: 3 disserta????o-final-lfc.pdf: 7998682 bytes, checksum: aeba0861a58accd75b80d79b861fff77 (MD5) Carta_Encaminhamento_Autodep??sito.pdf: 139180 bytes, checksum: cd781858fc3157c83071b08aab4ecb69 (MD5) Ata de Defesa.pdf: 454793 bytes, checksum: 8ae222a8a67846866b81ac1e79850ac7 (MD5) Approved for entry into archive by PPGGEO Geografia (ppgeog@ufam.edu.br) on 2021-07-23T15:38:32Z (GMT) No. of bitstreams: 3 disserta????o-final-lfc.pdf: 7998682 bytes, checksum: aeba0861a58accd75b80d79b861fff77 (MD5) Carta_Encaminhamento_Autodep??sito.pdf: 139180 bytes, checksum: cd781858fc3157c83071b08aab4ecb69 (MD5) Ata de Defesa.pdf: 454793 bytes, checksum: 8ae222a8a67846866b81ac1e79850ac7 (MD5) Approved for entry into archive by Divis??o de Documenta????o/BC Biblioteca Central (ddbc@ufam.edu.br) on 2021-07-23T20:51:32Z (GMT) No. of bitstreams: 3 disserta????o-final-lfc.pdf: 7998682 bytes, checksum: aeba0861a58accd75b80d79b861fff77 (MD5) Carta_Encaminhamento_Autodep??sito.pdf: 139180 bytes, checksum: cd781858fc3157c83071b08aab4ecb69 (MD5) Ata de Defesa.pdf: 454793 bytes, checksum: 8ae222a8a67846866b81ac1e79850ac7 (MD5) Made available in DSpace on 2021-07-23T20:51:32Z (GMT). No. of bitstreams: 3 disserta????o-final-lfc.pdf: 7998682 bytes, checksum: aeba0861a58accd75b80d79b861fff77 (MD5) Carta_Encaminhamento_Autodep??sito.pdf: 139180 bytes, checksum: cd781858fc3157c83071b08aab4ecb69 (MD5) Ata de Defesa.pdf: 454793 bytes, checksum: 8ae222a8a67846866b81ac1e79850ac7 (MD5) Previous issue date: 2021-05-20 * The search for sustainable development has led hydrographic basins to become an important study unit, related to the use, occupation and conservation of their natural resources, as there are social and ecological relationships with this environment. Water resources are included as the most diverse pressures caused by high demand associated with population growth, industrialization and food production. The present research had as general objective to analyze the influence of the use of the land in the environmental vulnerability in the Hydrographic Basin of the river Sanabani in the Municipality of Silves-AM. The specific objectives were mapped for land use and vegetation cover from a time perspective referring to the years 1985, 1989, 1999, 2009 and 2019, to map the Areas of Permanent Preservation and incompatibility, and to establish an Environmental Vulnerability scale, based on the interrelationship of physical-environmental attributes and land use. The methodology used to achieve these objectives uses the Geographic Information System (GIS) environment through the QGIS and SPRING software. Regarding environmental vulnerability, the methodology is based on the proposal by Crepani et. al. (2001), developed from the concept of Ecodynamics (TRICART, 1977). The temporospatial analysis of land use and vegetation cover in the Sanabani river basin, caused the reduction of primary vegetation where in 1985 it was 92%, to current 87% in 2019. Permanent Preservation Areas have 22% of the total area of the basin, and are mostly delayed, in spring areas considering the radius of 50 meters of vegetation in their surroundings. The areas of incompatibility represent only 1% of the total areas of APPs, do not raise according to what is provided by law (forest code) due to the legally reserved space for environmental protection. The environmental Vulnerability indexes achieved show that the Weak and Moderate Vulnerability classes together represent a total of 98% of the basin, that is, a predominance in all administration, taken from a morphodynamic category from stable to intermediate (intergrades) A busca por um desenvolvimento sustent??vel tem levado as bacias hidrogr??ficas a tornarem-se uma importante unidade de estudo, relacionados ao uso, ocupa????o e conserva????o de seus recursos naturais, por haver rela????es sociais e ecol??gicas com este ambiente. Os recursos h??dricos s??o submetidos ??s mais diversas press??es ocasionadas por uma alta demanda associadas ao crescimento da popula????o, da industrializa????o e produ????o de alimentos. A presente pesquisa teve, por objetivo geral, analisar a influ??ncia do uso da terra na vulnerabilidade ambiental na Bacia Hidrogr??fica do rio Sanabani, no Munic??pio de Silves-AM. Os objetivos espec??ficos consistiram no mapeamento do uso da terra e cobertura vegetal a partir de uma perspectiva temporal, referentes aos anos de 1985, 1989, 1999, 2009 e 2019, mapear as ??reas de Preserva????o Permanente e de incompatibilidade, e estabelecer uma escala de Vulnerabilidade Ambiental, partindo da inter-rela????o dos atributos f??sico-ambientais e uso da terra. A metodologia utilizada para alcan??ar tais objetivos utilizou-se do ambiente do Sistema de Informa????o Geogr??fica (SIG) por meio do software QGIS e SPRING. Em rela????o ?? vulnerabilidade ambiental a metodologia foi fundamentada na proposta de Crepani et. al. (2001), desenvolvida a partir do conceito de Ecodin??mica (TRICART, 1977). A an??lise temporo-espacial do uso da terra e cobertura vegetal da bacia hidrogr??fica do rio Sanabani, permitiu identificar uma redu????o da vegeta????o prim??ria onde em 1985 era 92%, para atuais 87% em 2019. As ??reas de Preserva????o Permanente possuem 22% da ??rea total da bacia, e s??o em sua maioria, em ??reas de nascentes, considerando o raio de 50 metros de vegeta????o em seu entorno. As ??reas de incompatibilidade representam apenas 1% do total das ??reas de APPs, n??o estando de acordo com o que ?? previsto em lei (c??digo florestal), nestes espa??os destinados legalmente ?? prote????o ambiental. Os ??ndices de Vulnerabilidade ambiental alcan??ados demonstram que as classes de Vulnerabilidade Fraca e Moderada representam, juntas, um total de 98% do da bacia, ou seja, uma predomin??ncia em toda bacia, estando, assim, em uma categoria morfodin??mica de est??vel a intermedi??ria (intergrades).
Databáze: OpenAIRE
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