Modelos para a dinâmica de vegetação em áreas alagáveis amazônicas

• Autor(a) principal: Silva, Jaqueline Maria da
• Data de Publicação: 2011
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações do LNCC
• Texto Completo: https://tede.lncc.br/handle/tede/37
• topic: Dinâmica; Sustentabilidade; Autômato celular; Populações vegetais; Dynamics; Sustainability; Celular automaton; Plant populations; CNPQ::CIENCIAS BIOLOGICAS::ECOLOGIA::ECOLOGIA DE ECOSSISTEMAS

Most processes that affect the distribution, structure and dynamics of tree populations occur early in the plant life cycle. Hence, it is very important to study seed germination and seedling establishment processes to understand the growth and the dispersion of plant populations. In this work, we present three vegetation models to represent the tree growth process in flooded areas of the Amazon Forest that use cellular automata. We consider seed dispersion, seedling establishment, in uence of light, recruitment of individuals, as well as the ood gradient in the models.The first model represents the influence of flooding in the vegetation dynamic only through data and adequate hypotheses about the ooded regions. The second model represents the influence of ooding in the vegetation dynamic taking into account its in uence on mortalities. The third model represents the ood varying along time and includes topographic information.We analyze the in uence of each parameter on the vegetation dynamic. Furthermore, we present a statistical analysis of the results, evaluating the model behavior and the consistency and stability of the results obtained by the computational models.