Laguna Melincué
Encyclopedia
The Laguna Melincué is an endorheic
lake
located in the province
of Santa Fe
, Argentina
, in the General López Department
, next to the town of Melincué
, at approximately 33°42′24"S 61°29′4"W. It covers a surface area of about 120 km², and its top water level lies at around 86 m above mean sea level
(c. 2003).
The lake forms part of a wetland
ecosystem, noted for its large population of waterfowl
and other birds, which is protected as a nature reserve
. In times of drought
the lake's waters became saline
. In 2008 an area of 920 km² has been listed as a Wetland of International Importance under the Ramsar convention
.
For decades the water level of the Melincué Lake have varied considerably, often flooding parts of its basin, and over time this has seriously affected the prosperity of the nearby towns and the maintenance of roads around it. According to a study by the Faculty of Engineering of the Universidad Nacional de Rosario, in 1968 the top water level stood at 82.5 m AMSL, more than 3 m below its current height. In 1998–2000 the provincial government passed legislation creating a Strategic Environmental Planning Area covering the surrounding districts (Melincué, Carreras, Hughes, Elortondo and Labordeboy) with the goal of promoting its sustainable development
, but major concrete actions have failed to materialize.
Endorheic
An endorheic basin is a closed drainage basin that retains water and allows no outflow to other bodies of water such as rivers or oceans...
lake
Lake
A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...
located in the province
Provinces of Argentina
Argentina is subdivided into twenty-three provinces and one autonomous city...
of Santa Fe
Santa Fe Province
The Invincible Province of Santa Fe, in Spanish Provincia Invencible de Santa Fe , is a province of Argentina, located in the center-east of the country. Neighboring provinces are from the north clockwise Chaco , Corrientes, Entre Ríos, Buenos Aires, Córdoba, and Santiago del Estero...
, Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...
, in the General López Department
General López Department
The General López Department is an administrative subdivision of the province of Santa Fe, Argentina. It is located in the south of the province...
, next to the town of Melincué
Melincué
Melincué is a town in the south of the , 287 km from the provincial capital. It has about 2,200 inhabitants as per the and it is the head town of the General López Department...
, at approximately 33°42′24"S 61°29′4"W. It covers a surface area of about 120 km², and its top water level lies at around 86 m above mean sea level
Above mean sea level
The term above mean sea level refers to the elevation or altitude of any object, relative to the average sea level datum. AMSL is used extensively in radio by engineers to determine the coverage area a station will be able to reach...
(c. 2003).
The lake forms part of a wetland
Wetland
A wetland is an area of land whose soil is saturated with water either permanently or seasonally. Wetlands are categorised by their characteristic vegetation, which is adapted to these unique soil conditions....
ecosystem, noted for its large population of waterfowl
Waterfowl
Waterfowl are certain wildfowl of the order Anseriformes, especially members of the family Anatidae, which includes ducks, geese, and swans....
and other birds, which is protected as a nature reserve
Nature reserve
A nature reserve is a protected area of importance for wildlife, flora, fauna or features of geological or other special interest, which is reserved and managed for conservation and to provide special opportunities for study or research...
. In times of drought
Drought
A drought is an extended period of months or years when a region notes a deficiency in its water supply. Generally, this occurs when a region receives consistently below average precipitation. It can have a substantial impact on the ecosystem and agriculture of the affected region...
the lake's waters became saline
Salinity
Salinity is the saltiness or dissolved salt content of a body of water. It is a general term used to describe the levels of different salts such as sodium chloride, magnesium and calcium sulfates, and bicarbonates...
. In 2008 an area of 920 km² has been listed as a Wetland of International Importance under the Ramsar convention
Ramsar Convention
The Ramsar Convention is an international treaty for the conservation and sustainable utilization of wetlands, i.e., to stem the progressive encroachment on and loss of wetlands now and in the future, recognizing the fundamental ecological functions of wetlands and their economic, cultural,...
.
For decades the water level of the Melincué Lake have varied considerably, often flooding parts of its basin, and over time this has seriously affected the prosperity of the nearby towns and the maintenance of roads around it. According to a study by the Faculty of Engineering of the Universidad Nacional de Rosario, in 1968 the top water level stood at 82.5 m AMSL, more than 3 m below its current height. In 1998–2000 the provincial government passed legislation creating a Strategic Environmental Planning Area covering the surrounding districts (Melincué, Carreras, Hughes, Elortondo and Labordeboy) with the goal of promoting its sustainable development
Sustainable development
Sustainable development is a pattern of resource use, that aims to meet human needs while preserving the environment so that these needs can be met not only in the present, but also for generations to come...
, but major concrete actions have failed to materialize.