Bitte benutzen Sie diese Kennung, um auf die Ressource zu verweisen: http://literatura.ciidiroaxaca.ipn.mx:8080/xmlui/handle/LITER_CIIDIROAX/483
Titel: Vulnerability to contamination of the Zaachila aquifer, Oaxaca, Mexico
Autoren: Belmonte Jimenez, Salvador Isidro
Campos Enríquez, José Oscar
Alatorre Zamora, Miguel Ángel
Stichwörter: info:eu-repo/classification/cti/1
Erscheinungsdatum: Jul-2005
Herausgeber: Geofísica Internacional
Zusammenfassung: The aquifer of Zaachila was evaluated following conventional methods (DRASTIC, AVI, and GOD). Depth to the wáter table was established from a set of wells. Accordingly, the groundwater flows from N to S. Hydraulic conductivity ranges between 1.81647E-05 and 1.70411E-04 m/s, while transmissivity varies between 22.01 and 220.85 m2/day. The net mean anual recharge was estimated at 98 mm/year. The aquifer is constituted mainly by sand, gravel and clay. The soil cover is up to 1.5 m thick and is constituted by lime, clay and sandy material. According to GOD, some zones of this aquifer have a medium to high vulnerability. DRASTIC assigns a high vulnerability to large part of the area. The highest values are observed in the southern and middle sections, from Oaxaca city to the south including San Bartolo Coyotepec, as well as Zaachila town and airport. The AVI method assigns to the valley a high to very high vulnerability. A sensitivity analysis suggests that depth to water table is the key factor determining vulnerability, followed by impact to the vadose zone and soil type.
URI: http://literatura.ciidiroaxaca.ipn.mx:8080/xmlui/handle/LITER_CIIDIROAX/483
Enthalten in den Sammlungen:Salvador Isidro Belmonte Jiménez

Dateien zu dieser Ressource:
Datei Beschreibung GrößeFormat 
Belmonte-Jiménez et al. (2005).pdf765,37 kBAdobe PDFMiniaturbild
Öffnen/Anzeigen


Alle Ressourcen in diesem Repository sind urheberrechtlich geschützt, soweit nicht anderweitig angezeigt.