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Title: Reconstruction of the aquifer history of Gran Canaria
Authors: Quintana Montesdeoca, María del Pino 
Fernández de la Nuez, Isabel 
Pacheco Castelao, José Miguel 
UNESCO Clasification: 250605 Hidrogeología
12 Matemáticas
Issue Date: 2009
Abstract: A study on the recent history and current state of the aquifer in the Island of Gran Canaria (Canary Is., 28oN, 15oW) is performed. Though rainfall is scarce on the island, traditional agricultural practices and small population were able to keep the aquifer in a constant state for centuries. Nevertheless, at the beginning of the 20th Century, culture of several water-consuming species was introduced on a commercial basis due to the relative proximity of the Canaries to continental Europe and to the possibility of more than one yearly harvest. This led to generalised well digging (more than 300m deep in many cases) and to the appearance of a chronic hydraulic deficit, as well as to spoiling vastcoastal areas of the aquifer through intrusion of brackish water. In the mid 1960’s, coincident with the apex of agricultural exploitation, massive tourism appeared in the scene. This new activity soon became a susbstitute for Agriculture, but it attracted more new labour force to the island, and a fast growth of population was the main result. Moreover, new water use practices entered the scene. As a consequence, the main causes for the aquifer decline are population growth and extensive Agriculture practices in use during the last half of the 20th Century. Some remarks on sustainability issues in order to cope with Climate Change are also offered.
Source: Proceedings MATHMOD 09. 6th Vienna Conference on mathematical modelling, February 11 - 13, 2009, Vienna University of Technology
Rights: by-nc-nd
Appears in Collections:Actas de congresos
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