INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
capítulos de libros
Environmental degradation and flooding hazards. Proposal for its mitigation and control in central western Argentina.
A. A.I.J. VICH; R. OJEDA; D. COBOS; A. AND E. GRUNWALDT.
Environmental change and rational water use. (Ed: Olga E. Scarpatti and J.A.A. Jones).
Orientación Gráfica Editora
Lugar: Buenos Aires; Año: 2007; p. 114 - 124
The Gran Mendoza is placed over the piedmont of the oriental precordilleran foothills and it is the urban center of higher rank in the Argentina west center. The region is under strong pressures of anthropic. This fact has generated significant changes in the dynamics of the piedmont-city ecotone, particularly in the rain-runoff relations. The manifestations are: open garbage dumps with not very precise limits, arid extraction (rubble and soil), excessive felling of woody species, non-discriminated grazing, natural and provoked fires, four-wheel vehicles, motocross, hunting, bird trapping and human settlements. The use of new marginal lands has noticeably speeded the degrading process. Buildings increase the elimination of the vegetal cover, the decrease of natural infiltration, augment the process of runoff formation and alter the natural system to evacuate the surplus. In the search for alternatives to the traditional engineering conception, we are carrying out a project for the development of appropriate technologies and management of the piedmont ecosystems. Encloses restoration works for the reconstruction of the environment original conditions; rehabilitation for the recovering of the ecosystem functions, preservation and protection, diminishing of the flood hazard catastrophe, and maximization of benefits as per use and control. The work was oriented toward the correction of torrents, erosion control, forestation, management of habitat and wild life, design of strategies and regulations, and environmental education. It has been determined that they constitute the better alternative and all these is expected to reduce the production of water and sediments and biodiversity conservation. Key words: flooding hazards, watershed management, structural practices, habitat improvement, biodiversity conservation.