Der Einfluss ungesteuerter Urbanisierung auf die Grundwasserressourcen am Beispiel der indonesischen Millionenstadt Yogyakarta

L’impact de l’urbanisation incontrôlée sur les ressources en eau souterraine à travers l’exemple de la grande ville indonésienne Yogyakarta

Auteur(s) et Affiliation(s)



Description :
Uncontrolled urbanization and the growing population pressure are essential challenges for the water management in urbanized regions of the emerging- and developing nations. The influence of uncontrolled urbanization regarding the groundwater resourses of Yogyakarta is explicitly analyzed. The groundwater replenishment has not diminished despite of the growing soil sealing which comes as a consequence of the growing urbanization. On the contrary the urban groundwater replenishment is even slightly accumulated. Admittedly the groundwater pollution rises very clearly. This is due to the effects of urban groundwater replenishment such as sewer leakages and badly constructed or actually missing sewage systems. Many inhabitants are not linked to the sewage system and conduct their sewerage through sumps and latrines directly into the subsoil. Thence the water infiltrates those aquifer located close to the surface in a little while and that often leads to a heavy contamination of the groundwater. Only 30% of the population living in the agglomeration are connected with the public water support system. Therefore many households have to cover their water demand with the help of dug wells directly from the groundwater.


Type de document :
Article de périodique

Source :
Cybergeo, issn : 1278-3366, 2009, n°. 469, p. 1-9, nombre de pages : 9, Références bibliographiques : 15 ref.

Date :
2009

Identifiants :
eurl : http://www.cybergeo.eu/index22573.html

Editeur :
Pays édition : France, Paris, CNRS