NDLI: A simplified methodology for mapping groundwater vulnerability and contamination risk, and its first application in a tropical karst area, Vietnam

Content Provider	Springer Nature Link
Author	Nguyet, Vu Thi Minh Goldscheider, Nico
Copyright Year	2006
Abstract	A simplified methodology for mapping groundwater vulnerability and contamination risk is proposed, and the first application of the methodology, in a mountainous tropical karst area, is presented. The test site is the Tam Duong area, one of the poorest and remotest regions in northern Vietnam. The methodology requires a minimum of input data, which makes it particularly useful for developing countries. Vulnerability is assessed on the basis of two factors, which take into account the duality of recharge processes in karst aquifer systems: the overlying layers (O) and the concentration of flow (C). The risk map is obtained by putting together the vulnerability map and a simplified hazard assessment. The resulting maps provide a basis for groundwater protection zoning and land-use planning. Tracer tests and microbiological data confirmed the vulnerability and risk assessment in the test site.Une méthodologie simplifiée de cartographie de la vulnérabilité des eaux souterraines et du risque de contamination est proposée. Une première application est présentée, dans une zone karstique montagneuse sous climat tropical. Le site expérimental choisi est le secteur de Tam Duong, une des régions les plus pauvres et les plus isolées du Nord Vietnam. Cette approche ne nécessite qu’une quantité minimale de données d’entrée, ce qui en fait un outil utile pour les pays en voie de développement. L’appréciation de la vulnérabilité est basée sur deux facteurs prenant en compte la dualité des processus de recharge des systèmes karstiques: les couches supérieures (“overlying layers”, facteur O), et la concentration des flux d’infiltration (“concentration of flow”, facteur C). Le recoupement de la carte de vulnérabilité avec l’estimation simplifiée des aléas permet d’établir la carte des risques. Les cartes résultantes fournissent une base pour le zonage de la protection des eaux souterraines et l’aménagement de l’espace. Traçages et données microbiologiques ont confirmé les évaluations de la vulnérabilité et des risques effectuées sur le site expérimental.Se propone una metodología simplificada para realizar la cartografía de la vulnerabilidad de agua subterránea y el riesgo a la contaminación y se presenta la primera aplicación de la metodología en un área kárstica tropical montañosa. El sitio evaluado es el área Tam Duong, una de las regiones más pobres y remotas del norte de Vietnam. La metodología requiere un mínimo de datos de entrada lo que la hace particularmente útil para países en desarrollo. La vulnerabilidad se evalúa en base a dos factores los cuales toman en cuenta la dualidad de los procesos de recarga en sistemas de acuíferos kársticos: las capas sobreyacientes (O) y la concentración de flujo (C). El mapa de riesgo se obtiene mediante la integración del mapa de vulnerabilidad y una evaluación simplificada de la amenaza. Los mapas producidos de esta manera aportan bases para la zonificación de la protección de aguas subterráneas y la planificación del uso de la tierra. Pruebas con trazadores y datos microbiológicos confirman la vulnerabilidad y la evaluación de riesgos en el sitio experimental.
Starting Page	1666
Ending Page	1675
Page Count	10
File Format	PDF
ISSN	14312174
Journal	Hydrogeology Journal
Volume Number	14
Issue Number	8
e-ISSN	14350157
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-08-01
Publisher Institution	International Association of Hydrogeologists
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Groundwater vulnerability Contamination risk Tropical karst aquifer Developing country Socio-economic aspects Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Geology Hydrogeology
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Water Science and Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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