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Ecological Rehabilitation Proposal for Extracting areas in Road Construction, Paraguay

Journal of Environmental Science and Engineering(A) 2013年第5期2卷 322-330页

作者： Maria Lidia Aranda Espinoza, Cecilia Kennedy Rolon Amado Insfran Ortizt Stella Amarilla Jorge Pinazzo Lorenzo Meza Faculty of Agricultural Sciences National University of Asuncion University Campus 1618 Paraguay

This research work took into account two extracting areas that were used in the construction of the road between Pirayu and Yaguarun in Paraguay and describes the situation in the area taking into account the current related legislation. Signs of degradation have been observed, such as erosion in progress, compacted soil, scarce vegetative repopulation and lack of organic matter necessary to regenerate the flora, among others. Includes an analysis of the techniques applied in similar cases of degradation in other countries and those techniques that show more compatibility with the conditions of the areas under study have been selected; alternative rehabilitation techniques in road bank areas and surrounding surfaces are also recommended. The goal is that the selected areas will blend in with the landscape and will resume similar conditions to the surrounding landscape in a medium tenn. The most compatible techniques that were found were the reshaping of road banks in the degraded areas and the insertion of herbal species for the proposal for the implementation of bioengineering and soil improvements including the introduction of hardwood species after the insertion of herbal species.

关键词： degraded areas roads ecologic rehabilitation.

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