Effects of geology and human activity on the dynamics of salt-water intrusion in three coastal aquifers in southern Spain |
| |
| Authors: | M L Calvache A Pulido-Bosch |
| |
| Institution: | (1) Departamento de Geodinámica, University of Granada, Avda. Fuentenueva, E-18071 Granada, Spain, ES |
| |
| Abstract: | Mathematical modelling of salt-water intrusion processes in three aquifers on the southern coast of Spain (Río Verde, Río
Vélez and Castell de Ferro) reveals that, although all three systems are subject to the same climate and seasonal over-exploitation,
geological and human factors have very different effects on the dynamics of contamination. In the Río Verde aquifer, the most
important influence is the high volume of extractions occurring during the dry season; in Río Vélez, the intrusion is strongly
controlled by infiltration of water from the river to the aquifer, and, in the Castell de Ferro system, an intensely karstified
carbonate massif lying in contact with both the sea water and the detrital aquifer represents the main entrance point for
influx of sea water and subsequent washing of the aquifer. We have undertaken a mathematical simulation of various possible
measures to counteract intrusion, according to the specific characteristics of the process in each aquifer. These measures
include artificial recharge, use of natural recharge from the river as a hydraulic barrier, and the construction of a low-permeability
barrier.
Received: 5 December 1995 · Accepted: 12 April 1996 |
| |
| Keywords: | Sea-water intrusion over-exploitation river recharge geological factors mathematical simulation |
| 本文献已被 SpringerLink 等数据库收录！ |
|
