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| Format: | Artículo científico |
| Sprache: | en |
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Universidade Federal de Uberlândia
2005
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| Online-Zugang: | https://www.redalyc.org/articulo.oa?id=321328500052 |
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Inhaltsangabe:
- SEDIMENTOLOGICAL CHARACTERIZATION OF THE PEDOLOGICAL COVER OF CAMAÇARI ECOLOGICAL RESERVATION, CABO DE SANTO AGOSTINHO, PE, NORTHEASTERN BRAZIL Danielle Gomes da Silva Antonio Carlos de Barros Corrêa Williams de Oliveira dos Santos Pedro Ricardo da Cunha Nóbrega Geografía Social This paper deals with the issues of environmental impacts derived from the continuous process of metropolitan growth, and aims at identifying and analysing the erosive processes occurring in an area that has been legally designated as an environmental reservation, therefore said to be of strict permanent preservation. This research is focused on the understanding of causal relationships that unleash events of environmental disequilibrium, following the illegal systematic removal of the regolith for providing building materials to local civil construction entrepreneurs. It was possible to demonstrate the links between the spatial distribution of superficial materials (soils, sediments and regolith) and the level of stability of distinct geomorphic units, through the use of a morphostratigraphic approach. The area portrays a dissected hilly topography, lying within the limits of “Recife Metropolitan Area”, and therefore suffering the consequence of rapid changes in land use, epitomized by the extensive removal of natural vegetation and exploitation of its deeply lateritized regolith, in spite of being protected by State laws. Deforestation allied to the removal of the deeply weathered regolith has caused a rearrangement of the area’s morphodynamic units (Tricart,m 1977), as shown by both field and lab-work. However, it was found that the diversity of the pedological cover in the area, as a dynamic response of the lithology to the east coast tradewinds tropical climate, commands the distribution of superficial processes, favoring the ocurrence of mass movements, intense linear erosion, damming of superficial waterflow, reworking of sub-recent Aeolian sediments and building of coalescing alluvial fans. Finally the research threw light on the understanding of the linkages between rates of gemorphological dynamics and soil cover in a costal humid tropical environment. 2005 artículo científico 0103-1570 https://www.redalyc.org/articulo.oa?id=321328500052 en http://www.redalyc.org/revista.oa?id=3213 Sociedade & Natureza application/pdf Universidade Federal de Uberlândia Sociedade & Natureza (Brasil) Num.1 Vol.1