PERSONAL DE APOYO
MELO Walter Daniel
capítulos de libros
Título:
Geomorphology: Hidrological System and Land Use of Bahía Blanca Estuary Region
Autor/es:
. MELO W.D. AND LIMBOZZI F.
Libro:
Perspectives on Interated Coastal Zone Management in South America
Editorial:
IST Press
Referencias:
Lugar: Lisboa; Año: 2008; p. 317 - 331
Resumen:
The continental domain of Bahía Blanca encompasses the southeast corner of the La Pampa province and a part of
the southwest of Buenos Aires
province (Cammarata, 1982). This area lies in the pampean plain and includes the
districts of Tornquist, Villarino, Bahía
Blanca and Coronel Rosales.
The pampean plain is
delineated to the north by the 175
km long and 50 km wide Ventana and
Curamalal ridge system located in
the southwest of Buenos Aires province and lying
along a NW-SE axis while the southern and southwestern plains are limited by
the Colorado river (Figure 1). Their western
border is characterized by a succession of depressions where lagoons and
sabkhas. The most important lagoons in the area are the Colorada Grande,
Colorada Chica, Blanca Grande, Callaquéo lagoons and Salitral Negro. These
units are distributed from north to south and some aligned within the depression formed by the Chasicó lagoon and the Salinas
Chicas sabkha.
The axis formed by the Chasicó lagoon and the Vidriera sabkha also defines an area of
morphologic transition between the north and the south of this region. It is
characterized by small temporary streams with the Colorado
River lying on its southern edge being the only large and perennial river of the area. Also,
another transition is observed in the lagoon formations; while at the east
lagoons are not observed instead to the west they become large enough to be
industrially exploited commercially.
The study area lies within a temperate climate zone
characterized by two contiguous air masses: one maritime, warm and wet from the
South Atlantic; and the other cold from the
South Pacific, which dries-up as it travels over the Patagonian region
(Bróndolo and Bazan, 2000).