Climatic variations in the Cordillera de los Andes and their consequences over the environmental and social processes in the Mendoza Northern Oasis, Between the 19th and 20th Century.

PRIETO M. DEL R., ROJAS F., HERNÁNDEZ F.,

Facultad de Ciencias Forestales y Recursos Naturales de la Universidad Austral de Chile, Valdivia.

Simposio; II International Symposium, "Reconstructing Climate Variations in South America and the Antarctic Peninsula over the last 2000 years"; 2010

Facultad de Ciencias Forestales y Recursos Naturales de la Universidad Austral de Chile, Centro de Ingenieria de la Innovación.

Reconstruction of the pulses and fluctuations of the Bermejo marshland developed east of the city of Mendoza, as per the climatic variations (cordilleran snow, rains in the plain, rivers flow volume and phreatic variations).-Provide explanations about the origin and evolution of that large wetland, rescuing useful information for the sustainable management of resources and the rural and urban planning.It comprised a part of the Guaymallen, Lavalle and Maipú districts, toward the east of the present City of Mendoza Argentina (-32º 55 /-68 º 35 )Those districts remained occupied until the beginning of the 20th century by a large marshy and lacustrine system known as the Great Bermejo Marshland (yo dejaría gran Ciénaga del Bermejo )In the present day it corresponds almost totally to one of the most important horticultural zones of the province, with poor soil drainage, salinization and weaknesses in the buildings infrastructure owing to the characteristics of the soil.METHODOLOGYContent analysis of historical sources: (historical documents, ancient maps, descriptions by travelers, naturalists and scientists; newspapers news)Analysis of other sources:(analysis of satellite images, archaeological data, interviews)Comparison of the environment status among different historical moments: (quantitative and qualitative methodologies in regards to the quoted sources)