Programa de Pós-Graduação em Ciências Ambientais - PPGCA/IG
URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/2854
O Programa de Pós-Graduação em Ciências Ambientais (PPGCA) integra o Instituto de Geocências (IG) da Universidade Federal do Pará (UFPA) em parceria com o Museu Paraense Emílio Goeldi (MPEG) e a Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA/Amazônia Oriental) iniciou suas atividades em 2005 com o Mestrado Acadêmico e em 2011 com o Doutorado Acadêmico.
Navegar
Navegando Programa de Pós-Graduação em Ciências Ambientais - PPGCA/IG por Área de Concentração "ECOSSISTEMAS AMAZÔNICOS E DINÂMICAS SOCIOAMBIENTAIS"
Agora exibindo 1 - 3 de 3
- Resultados por página
- Opções de Ordenação
Item Acesso aberto (Open Access) Análise da sustentabilidade e do potencial de implantação de uma reserva da biosfera no Marajó, Pará(Universidade Federal do Pará, 2017-02-13) QUINTELA, Patrick Diniz Alves; VIEIRA, Ima Célia Guimarães; http://lattes.cnpq.br/3761418169454490; TOLEDO, Peter Mann de; http://lattes.cnpq.br/3990234183124986The sustainable development agenda has emerged as a new paradigm associated to the relationship between economic growth and the use of natural resources. Inasmuch, its assumptions should guarantee for future generations the balance between the processes of nature and society. The Man and Biosphere Program, launched in 1971, has been considered as one of the most important biological conservation programs of the United Nations Educational, Scientific and Cultural Organization (UNESCO). The strategy of creating Biosphere Reserves (RB) has moved the scope from global policy to local implementation projects. These units have since 2008 taken on the task of consolidating pristine areas in the construction of sustainability, combining natural landscapes with sustainable use through the participation of local populations. In this context, this interdisciplinary research analyzed the environmental and economic conditions of the municipalities of Marajó, Pará, applying the tool Barometer of Sustainability (BS). In addition, such results were used in the analysis of the challenges for the implementation of a Biosphere Reserve in the Marajó. Of the municipalities that make up the Marajó territory, 13 were pointed as potentially unsustainable, and the remaining three fell within the intermediary range of sustainability. According to the Barometer of Sustainability scale, all municipalities demonstrated critical socio-environmental conditions, creating an additional challenge for the implementation of the Biosphere Reserve due to such development background.Item Acesso aberto (Open Access) Construindo a utopia: análise histórica da política de conservação biológica sob a ótica do sistema socioecológico do arquipélago de Galápagos, Equador(Universidade Federal do Pará, 2018-02-21) ANDRADE, Luis Vladimir Mora; VIEIRA, Ima Célia Guimarães; http://lattes.cnpq.br/3761418169454490; TOLEDO, Peter Mann de; http://lattes.cnpq.br/3990234183124986The Galapagos archipelago is well known for its endemic biodiversity and for inspiring Charles Darwin in his theory of evolution. After 1535, with its accidental discovery, a series of historical events led to the reduction of turtle populations and the introduction of exotic species. With the creation of the Charles Darwin Station, a significant international effort on biodiversity conservation has attracted a large influx of tourism. Concomitant with the establishment of the station, the National Park Management Plan promoted shared responsibility for the management of protected areas, which integrates terrestrial and marine protected areas, and the archipelago was considered as a socio-ecological system, with its nature unique and special threat from recent global changes. Thus, this study aims to understand the relationships between anthropic pressures and the resilience of natural systems in the archipelago. The methodology is based on the analysis of Environmental Management on the Island of São Cristóvão with secondary information taken from the sessions of the United Nations Educational, Scientific and Cultural Organization (UNESCO), to build the adaptive cycle of Holling and in interviews with residents for the analysis of community perceptions. The recommendations suggested by UNESCO mainly involve problems such as tourism, agriculture, migration, introduced species, coordination between institutions. The perception study was conducted between June and August 2017 using questionnaires, interviews with 260 residents, and direct observation. The results showed UNESCO as an international body responsible for environmental management that has been emphasizing the problems presented in the Archipelago. On the other hand, the Ecuadorian government tries to balance and overcome adversity. UNESCO points out the need for residents to know better what it is to live in a Natural Heritage and what they must do to conserve that heritage. The primary identified impacts were: increased tourism (visits), population increase (migration); species introduced; lack of an effective system of solid waste management and wastewater management; lack of coordinated institutional co-operation; implementation of transdisciplinary research. In this last aspect, it implies that the management approach of ecosystems and natural resources should not focus on the components of the system, but on their relationships, interactions and feedbacks. In this study, we argue that the long-term sustainability of the archipelago depends on the rules for the exploration and conservation of natural resources. São Cristovão Island presents men (53.46%) and women (46.54%) residing mainly in Porto Baquerizo (71.92%); the majority (60%) from Galapagos. The perception analysis showed a tendency towards positive responses about environmental management, but they indicated some impacts on the way of life of the population, primarily related to the increase of tourism, introduced species and the reduction of the mine due to the extraction of sand, gravel, and stone to make the buildings. Given this scenario, local actors outline a system with interrelated but conflicting social, environmental and economic nuances, requiring more efficient management. Thus, it is perceived that the socio-ecological system of Galapagos undergoes a dynamic process that recognizes the interactions between natural system and social system, in which UNESCO directs biodiversity conservation strategies to the government including criteria of ecosystem management and seeks to reduce the pressure the solution to these vital problems is the implementation of a long-term environmental conservation management policy that can reduce social impacts.Item Acesso aberto (Open Access) Dinâmica de serapilheira e produção de raízes finas em plantios de Paricá (Schizolobium Parahyba Var. Amazonicum) e floresta sucessional em Aurora do Pará, Amazônia Oriental(Universidade Federal do Pará, 2009-06-29) SILVA, Antonio Kledson Leal; VASCONCELOS, Steel Silva; http://lattes.cnpq.br/0719395243841543The establishment of silviculturals and agroforestry systems with the paricá (Schizolobium parahyba var. amazonicum) expanded in the state of Pará, brazil, usually as alternative to reforestation of degraded areas (abandoned pasture). However lacking basic studies on the cycling of organic matter to understand the potencial of paricá to recover degrades areas. Set up an experiment on the farm Tramontina, Aurora do Pará, to evaluate process connected with cycling of organic matter, how the litter production (litterfall), litter stock, production of fine root during 12 months (October 2007 and September 2008), in treatments with plantations of paricá with five years, in the following arrangement: paricá single (PS), consortium paricá + freijó (Cordia goeldiana) (PF), Agroforestry systems with paricá, freijó and curauá (Ananas comusus var. erectifolius) (PFC). This treatments with paricá was compared with an area of reference (successional forest ecosystem with 25 years of age) (SUC). The treatments of paricá presented annual litter production under SUC (8,79 ± 0,08 Mg ha-1 yr-1), no significant difference between treatments PS (6,05 ± 0,15 Mg ha-1), PF (6,08 ± 0,13 Mg ha-1 yr-1) and PFC (6,63 ± 0,13 Mg ha-1 yr-1). The monthly production of litter was significativety major in dry season than wet season. The largest stock of litter has been identified in treatments with paricá PS (7,7 ± 1,0 Mg ha-1) and PF (7.4 ± 0,1 Mg ha-1), while the SUC presented an stock of 5.9 ± 1,3 Mg ha-1. This results is related to the lower rate of decomposition found in treatments with paricá. The production of total fine roots (live + dead) was significativelly major in the treatments PS (380,3 ± 20,6 g m-²), PF (343,0 ± 18,4 g m-²) and PFC (265,5 ± 9,9 g m-²) than SUC (107,2 ± 2,7 g m-²), the variation of fine roots production in the period of study is associate with a seasonality of pluviometric precipitation; the fine roots production decreases during the period of increased precipitation and increases with the arrival of the dry period. Treatments with paricá showed good ability to provide organic material above and below the ground. More specifically, the paricá presented high production and storage of litter on soil, which are desirable attributes in systems for recovery of degraded areas.