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      Padrões da Regeneração Natural na Região de Mar de Morros, Pinheiral-RJ Translated title: Patterns of Natural Regeneration in the Region of “Mar de Morros”, Pinheiral-RJ

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          Abstract

          RESUMO A Floresta Atlântica é o ecossistema brasileiro submetido a processos de degradação ambiental mais acentuado, mesmo assim, em alguns ambientes o processo de regeneração natural pode ser observado. O objetivo deste estudo foi avaliar o padrão da regeneração natural dos fragmentos florestais do Médio Vale Paraíba do Sul quanto aos fatores topográficos e identificar áreas potenciais ao processo de regeneração. O mapeamento dos fragmentos florestais foi obtido a partir de imagens do sensor Thematic Mapper (1994 e 2011). Para os fatores topográficos foram utilizadas as cartas topográficas do IBGE. O processo de regeneração natural na área de estudo é influenciado pelos fatores topográficos e acontece principalmente nos ambientes com superfície plana, declividade variando de ondulada a forte ondulada, orientação da vertente variando de SE (sudeste) a SW (sudoeste) e radiação solar global entre 150000 e 1700000 Watts. Na sub-bacia do ribeirão Cachimbal, os ambientes favoráveis à regeneração natural não são suficientes para que a sub-bacia tenha sua cobertura florestal original restabelecida, por representar apenas 1,2% da área da sub-bacia hidrográfica, o que remete à necessidade de intervenção antrópica.

          Translated abstract

          ABSTRACT The Atlantic Forest is the brazilian ecosystem that is subjected to stronger environmental degradation processes, yet in some environments the natural regeneration process can be observed. Thus, the aim of this study was to evaluate the pattern of natural regeneration of forest fragments in the “Médio Vale Paraíba do Sul” as the topographic factors and to identify potential areas of regeneration. The mapping of forest fragments were obtained from images of the Thematic Mapper sensor (1994 and 2011). For topographical factors, the IBGE topographic maps were used. The natural regeneration process in the study area is influenced by topographical factors and occurs mainly in environments with a flat surface, steepness ranging from wavy corrugated strong, strand orientation ranging from SE (southeast) SW (southwest) and global solar radiation between 1.500.000 and 1.700.000 Watts. In sub-basin Cachimbal stream, favorable environments natural regeneration are not sufficient for sub-basin has restored its original forest cover, it represents only 1.2% of the watershed area, which refers to the need of human intervention.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                floram
                Floresta e Ambiente
                Floresta Ambient.
                Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro (Seropédica, RJ, Brazil )
                1415-0980
                2179-8087
                September 2017
                : 24
                : 0
                : e20150081
                Affiliations
                [01] Seropédica Rio de Janeiro orgnameUniversidade Federal Rural do Rio de Janeiro orgdiv1Instituto de Florestas orgdiv2Programa de Pós-graduação em Ciências Ambientais e Florestais Brazil
                [02] Seropédica Rio de Janeiro orgnameUniversidade Federal Rural do Rio de Janeiro orgdiv1Instituto de Agronomia orgdiv2Departamento de Solos Brazil
                [04] Seropédica orgnameEmpresa Brasileira de Pesquisa Agropecuária Brazil
                [03] Seropédica Rio de Janeiro orgnameUniversidade Federal Rural do Rio de Janeiro orgdiv1Instituto de Florestas orgdiv2Departamento de Ciências Ambientais e Florestais Brazil
                Article
                S2179-80872017000100191
                10.1590/2179-8087.008115
                44b20634-389d-46bb-85f7-4339fde47849

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 01 November 2016
                : 24 November 2016
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 29, Pages: 0
                Product

                SciELO Brazil

                Categories
                Artigo Original

                Semideciduous Forest,resilience,landscape,Floresta Estacional Semidecidual,resiliência,paisagem

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