Análise dos tensores antropogênicos dos mangues no Complexo Estuarino Real-Piauí-Fundo, sul de Sergipe, Brasil

Abstract

The mangroves on the south coast of Sergipe survive a mid the presence of anthropogenic tensors that compromise the existence of the mangrove ecosystem. The objective is to analyze the anthropogenic tensors that affect the Avicennia schaueriana (Sta pf& Leech), Laguncularia racemosa (L.) C.F. Gaertn and Rhizophora mangle (L.) and the levels of vulnerability resulting from tension, in the Real-Piauí-Fundo/ Sergipe estuarine complex. The tensors were systematically observed in the lower, middle and upper estuaries, based on the previous definition of tension attributes. For the joint assessment of the tensors, weights were determined and the rescheduling of the vulnera bility was calculated. The data expressed in charts, graphs and maps produced in ArcGis, reveal: the average estuary constitutes the area with the lowest anthropogenic tension; and the upper one, the most vulnerable area , with most of the mangrove strip outside the limits of the polygon of the Environmental Protection Area of the South Coast, when viewing the APA limits and the research locations. The sensitivity of the lower and middle estuaries, which are within the APA, was classified as high and moderate, respectively, revealing that the mangroves of the estuarine complex are subject to the risks of human actions. Even within an estuarine complex, the mangroves have a different response capacity to anthropogenic tensors and significant chances of disappearance.