Podwojewski Pascal, Poulenard J., Janeau Jean-Louis. (2015). Effects of land-use changes on soil properties : volcano watershed in Quito, Ecuador. In :
Romeo R. (ed.), Vita A. (ed.), Manuelli S. (ed.), Zanini E. (ed.), Freppaz M. (ed.), Stanchi S. (ed.). Understanding mountain soils : a contribution from mountain areas to the International Year of Soils 2015. Rome : FAO, p. 95-96. ISBN 978-92-5-108804-3.
Titre du document
Effects of land-use changes on soil properties : volcano watershed in Quito, Ecuador
Romeo R. (ed.), Vita A. (ed.), Manuelli S. (ed.), Zanini E. (ed.), Freppaz M. (ed.), Stanchi S. (ed.) Understanding mountain soils : a contribution from mountain areas to the International Year of Soils 2015
Source
Rome : FAO, 2015,
p. 95-96 ISBN 978-92-5-108804-3
In the highlands of southern Colombia and northern Ecuador, soils developed on volcanic ash deposits have specific properties: high water retention, high hydraulic conductivity and high carbon (C) contents. The main role of the soils is to regulate the water available for the dense population living in the valleys. Soil properties and land use depend on their altitudes. Any important modification of land-use change has a serious effect on soil properties and consequently the ecosystem properties such as water regulation and flood control. This can be a threat for a city that relies on the ecosystem for its water supply, as is the case in Ecuador's capital, Quito.
Plan de classement
Erosion et conservation des sols [068EROSOL]
Descripteurs
SOL DEGRADE ; PROPRIETE HYDRIQUE ; PROPRIETE PHYSIQUE ; ROCHE VOLCANIQUE ; BASSIN VERSANT ; HAUTE ALTITUDE ; EROSION HYDRIQUE ; INFILTRATION ; CONDUCTIVITE HYDRAULIQUE ; UTILISATION DU SOL ; PATURAGE ; PRATIQUE CULTURALE ; CROUTE D'ALTERATION ; GLISSEMENT DE TERRAIN ; ZONE DE MONTAGNE
