Impact of land use changes on the hydrological properties of volcanic ash soils in South Ecuador

The effect of land use on the water retention capacity of Umbric Andosols in south Ecuador was studied. The objective was to acquire a better insight into the hydrological processes of the ecosystem and the role of the soil, in order to assess the impact of changing soil properties due to land use c...

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Autores Principales: Buytaert, Wouter, Deckers, Jozef, Dercon, Gerd, Bievre, Bert De, Poesen, Jean, Govers, Gerard
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Publicado: 2015
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Acceso en línea:http://dspace.ucuenca.edu.ec/handle/123456789/22202
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spelling oai:localhost:123456789-222022016-11-20T14:20:21Z Impact of land use changes on the hydrological properties of volcanic ash soils in South Ecuador Soil Use and Management Buytaert, Wouter Deckers, Jozef Dercon, Gerd Bievre, Bert De Poesen, Jean Govers, Gerard ANDOSOLS LAND USE SOIL WATER RETENTION HYDROLOGY VOLCANIC ASH SOILS ECUADOR The effect of land use on the water retention capacity of Umbric Andosols in south Ecuador was studied. The objective was to acquire a better insight into the hydrological processes of the ecosystem and the role of the soil, in order to assess the impact of changing soil properties due to land use change on the hydrology of the high Andes region. Field data on the water retention capacity at wilting point of Umbric Andosols were collected for both cultivated field conditions and original bush vegetation. The pH in water and in NaF, texture, organic matter content and dry bulk density were measured to show which physicochemical soil characteristics are responsible for the water retention of the Umbric Andosols and for the irreversible loss in water retention due to air drying. Organic matter content appears to be very important and certainly more important than allophane clay content. Water retention of the organic litter layer was calculated to be 16 mm, this would be lost when vegetation was cleared and the land cultivated. vol. 18; no. 2 2015-06-15T16:36:03Z 2015-06-15T16:36:03Z 2002-06 info:eu-repo/semantics/Article http://dspace.ucuenca.edu.ec/handle/123456789/22202 doiI: 10.1111/j.1475-2743.2002.tb00226.x eng openAccess http://creativecommons.org/licenses/by-nc-sa/3.0/ec/ application/pdf instname:Universidad de Cuenca reponame:Repositorio Digital de la Universidad de Cuenca info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/3.0/ec/
institution UCUENCA
collection Repositorio UCUENCA
universidades UCUENCA
language
format Artículos
topic ANDOSOLS
LAND USE
SOIL WATER RETENTION
HYDROLOGY
VOLCANIC ASH SOILS
ECUADOR
spellingShingle ANDOSOLS
LAND USE
SOIL WATER RETENTION
HYDROLOGY
VOLCANIC ASH SOILS
ECUADOR
Buytaert, Wouter
Deckers, Jozef
Dercon, Gerd
Bievre, Bert De
Poesen, Jean
Govers, Gerard
Impact of land use changes on the hydrological properties of volcanic ash soils in South Ecuador
description The effect of land use on the water retention capacity of Umbric Andosols in south Ecuador was studied. The objective was to acquire a better insight into the hydrological processes of the ecosystem and the role of the soil, in order to assess the impact of changing soil properties due to land use change on the hydrology of the high Andes region. Field data on the water retention capacity at wilting point of Umbric Andosols were collected for both cultivated field conditions and original bush vegetation. The pH in water and in NaF, texture, organic matter content and dry bulk density were measured to show which physicochemical soil characteristics are responsible for the water retention of the Umbric Andosols and for the irreversible loss in water retention due to air drying. Organic matter content appears to be very important and certainly more important than allophane clay content. Water retention of the organic litter layer was calculated to be 16 mm, this would be lost when vegetation was cleared and the land cultivated.
author Buytaert, Wouter
Deckers, Jozef
Dercon, Gerd
Bievre, Bert De
Poesen, Jean
Govers, Gerard
author_facet Buytaert, Wouter
Deckers, Jozef
Dercon, Gerd
Bievre, Bert De
Poesen, Jean
Govers, Gerard
author_sort Buytaert, Wouter
title Impact of land use changes on the hydrological properties of volcanic ash soils in South Ecuador
title_short Impact of land use changes on the hydrological properties of volcanic ash soils in South Ecuador
title_full Impact of land use changes on the hydrological properties of volcanic ash soils in South Ecuador
title_fullStr Impact of land use changes on the hydrological properties of volcanic ash soils in South Ecuador
title_full_unstemmed Impact of land use changes on the hydrological properties of volcanic ash soils in South Ecuador
title_sort impact of land use changes on the hydrological properties of volcanic ash soils in south ecuador
publishDate 2015
url http://dspace.ucuenca.edu.ec/handle/123456789/22202
_version_ 1635522786378121216
score 11,871979