Mangroves are areas of permanent preservation, but anthropogenic interference in this ecosystem (for example the launching of pollutants from industrial, mining, fertilizer by farmers, sewage) is increasing startlingly. Preserve and look for ways to bioremediate mangroves is fundamental, since these maintain the productivity of coastal ecosystems and is thus regarded as a natural nursery. The need to study the mangroves has been growing in recent years, particularly in respect to the environmental characteristics of this ecosystem. This chapter aimed to draw a parallel between the damage that can be caused by the trace elements nickel and iron on the mangrove ecosystem, more specifically affecting the nutrition of mangrove plants, in addition to showing possible effects of the interaction of these metals with humic substances of organic matter acting on the mitigation of stresses caused to the ecosystem under study. Through surveys of the information covered in this chapter, it can be observed that the presence of trace elements such as Iron and Nickel at high levels can cause eminent stress to the plant structure within the scope of its sedimentary physiology and biochemistry. It is necessary to subsidize further studies so that it is explicit and approved by the scientific community that, this environment, which is sensitive and important, the basis for various trophic levels, needs greater attention from government officials for its preservation, as well as the restoration of those many mangroves that are polluted by being close to urban places, receiving an exacerbated supply of pollutants.
Analise ambiental do principal rio de abastecimento do estado do EspíritoSanto, Sudeste do Brasil Environmental analysis of main supply river in the state of Espírito Santo, Brazil southeast's
Os manguezais vêm sofrendo tensões antrópicas constantemente, levando ao declínio deste sistema importante. Há então a necessidade de estudar os manguezais, buscando investigar as características ambientais deste ecossistema e apontar possíveis fatores que tem contribuído com este declínio e suas causas. Este trabalho teve como objetivo avaliar a qualidade ambiental em diferentes áreas do Manguezal da Estação Ecológica Ilha do Lameirão (EEMIL) através da caracterização da estrutura de sua vegetação. Foram realizadas análises da estrutura vegetal em 8 (oito) parcelas distribuídas nas duas áreas estudadas com diferentes níveis de conservação (Canal dos Escravos e Maria Ortiz) entre março de 2010 e janeiro de 2012. Com relação às características da estrutura da vegetação, em geral, a média de altura e diâmetro na altura do peito foram maiores na área do Canal dos Escravos que em Maria Ortiz com predominância das espécies de Rhizophora mangle e Laguncularia racemosa em ambas as áreas. Em todas as parcelas avaliadas em Maria Ortiz observou-se um grande número de indivíduos mortos, além da presença de grande quantidade de algas, ainda não identificadas, sobre os pneumatóforos. Contudo, a área do canal dos Escravos mostrou-se numericamente e visivelmente de melhor aspecto e conservação que em Maria Ortiz onde possui muita poluição e pressão para sua destruição.
This work compiles sustainable agriculture methods such as hydroponics, crop rotation and family farming, as well as how cultivation can assist in the process of environmental education and sustainability. It was exposed how the relationship between agronomic activity and environmental preservation proposals is presented, in order to emphasize solutions that the agricultural sector adheres to sustainability. In this way we made the report of a case study, in which we tried to apply methods of cultivation of agronomy in the classroom. In this case study we promote the reuse of waste, we point out how the practice of cultivation helps to promote sustainable development and how important a planning that encompasses, not only students with a teacher, such as the community and the school.
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