Gestão e Regulação de Recursos Hídricos em Rede Nacional - Mestrado Profissional

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Programa de Pós-Graduação em Gestão Regulação Recursos Hídricos

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Navegando Gestão e Regulação de Recursos Hídricos em Rede Nacional - Mestrado Profissional por Autor "Caiado, Marco Aurelio Costa"

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    Influência de sistemas agroflorestais sobre a condição hidrológica de bacias hidrográficas
    (Universidade Federal do Espírito Santo, 2019-07-22) Araujo, Eliane Meire de Souza; Buarque, Diogo Costa; https://orcid.org/000000032698520X; http://lattes.cnpq.br/8616432679482558; https://orcid.org/0000-0003-3169-1556; http://lattes.cnpq.br/3845791875087970; Teixeira, Edmilson Costa; https://orcid.org/; http://lattes.cnpq.br/2223526989758235; Paiva, Rodrigo Cauduro Dias de; https://orcid.org/0000-0003-2918-6681; http://lattes.cnpq.br/9163718529870752; Sossai, Marcos Franklin; https://orcid.org/; http://lattes.cnpq.br/5566667702204394; Caiado, Marco Aurelio Costa; https://orcid.org/0000000226583916; http://lattes.cnpq.br/7949976625744034
    Agroforestry systems (SAFs) provide a range of hydrological ecosystem services associated with natural forest cover. For these reasons, the adoption of agroforestry systems is encouraged in different countries and is applied, for example, in projects and programs to promote the restoration of landscapes and sustainable development, such as Reflorestar, the reforestation program in Espírito Santo. However, on one hand, there is a lack of studies that investigate and quantify the impacts of agroforestry systems on the components of the hydrological cycle of the river basins and, on the other, the need to disseminate knowledge and perceive the benefits associated with these systems so that the restoration of forest landscapes can be spread throughout the territory. In this context, the present work seeks to evaluate the influence of SAFs on the hydrological condition of hydrographic basins, through indicators obtained from variables of the SWAT model, aiming to increase the knowledge about the adoption of these systems on water availability. The scenarios simulated were: a) increase in forest cover by SAFs; and b) different arrangements of the systems, based on the plant typologies in the study area. As the defined indicators of the hydrological condition were: the fraction of the precipitation that contributes to the river flow (𝑊𝑌𝐿𝐷/𝑃𝑅𝐸𝐶); contribution of groundwater to river flow (𝐺𝑊𝑄/𝑊𝑌𝐿𝐷); contribution of lateral flow to river flow (𝐿𝐴𝑇𝑄/𝑊𝑌𝐿𝐷); contribution of the surface runoff to the river flow (𝑆𝑈𝑅𝑄/𝑊𝑌𝐿𝐷) and the fraction of rainwater percolated to feed shallow and deep aquifers(𝑃𝐸𝑅𝐶/𝑃𝑅𝐸𝐶). The study showed a greater influence of the SAFs on the underground dynamics, with increased recharge of shallow and deep aquifers, as well as increased contribution of the base flow to the river flows, for scenarios of adoption of up to 42% of SAFs. The contribution of surface runoff to flow rates reduced by up to 22% with the increase in the area of adoption of SAFs. The variations were less significant regarding the different arrangements of SAFs, however, the results indicated that scenarios with predominance of medium and high strata caused a greater change for the indicators evaluated. Therefore, the increased SAFs’ coverage had an influence on the hydrological condition, especially on groundwater dynamics and surface runoff. The contribution to the flows was maintained over the timeframe. In addition, the SWAT model proved to be a tool capable of assisting in the evaluation of the effects of adopting SAFs for the provision of ecosystem services, contributing to greater knowledge about the hydrological benefits associated with these systems, with potential subsidies to the policies to increase the forest cover.
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    MODELAGEM HIDRÁULICA COM BASE EM DOIS MODELOS HIDROLÓGICOS COMO SUBSÍDIO À PREDIÇÃO DE EVENTOS DE CHEIAS NA BACIA DO RIO JUCU BRAÇO SUL/ES
    (Universidade Federal do Espírito Santo, 2020-08-28) Barbosa, Pedro Ivo Guedes; Caiado, Marco Aurelio Costa; https://orcid.org/0000000226583916; http://lattes.cnpq.br/7949976625744034; https://orcid.org/; http://lattes.cnpq.br/; Buarque, Diogo Costa; https://orcid.org/000000032698520X; http://lattes.cnpq.br/8616432679482558
    The phenomenon of Brazilian urbanization was carried out in a disorganized manner, without urban planning in its great majority and with permissiveness and passivity of the public power regarding the ordering of the territory. As a result, several cities