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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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/ |
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ANDOSOLS LAND USE SOIL WATER RETENTION HYDROLOGY VOLCANIC ASH SOILS ECUADOR |
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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 |