Particle arrangement and internal porosity of coarse fragments affect water retention in stony soils

Information about water retention in stony soils lags behind due to methodological difficulties. We applied a new strategy to measure the water retention in soils with coarse fragments (CFs) and to get insights into the effect of CFs porosity on water retention. Water retention at zero, 10, and 150 ...

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Bibliographic Details
Published in:European journal of soil science 2023-05, Vol.74 (3), p.n/a
Main Authors: Pereira, Caroline Andrade, Mulazzani, Rodrigo Pivoto, Jong Van Lier, Quirijn, Araújo Pedron, Fabrício, Gubiani, Paulo Ivonir
Format: Article
Language:English
Subjects:
Bulk density
Fragments
Moisture content
parent material
pedotransfer functions
plant available water
Porosity
Retention
Retention capacity
saprolite
Soil
Soil porosity
Soil water
Stony soils
Water
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Summary:Information about water retention in stony soils lags behind due to methodological difficulties. We applied a new strategy to measure the water retention in soils with coarse fragments (CFs) and to get insights into the effect of CFs porosity on water retention. Water retention at zero, 10, and 150 m suction, bulk density, and the mass fraction of six particle size classes were measured in undisturbed blocks from soils with variable CFs contents, originating from three parent materials. The results showed that some soils contain porous CFs (2–250 mm) with a water holding capacity as high as the fine fraction (
ISSN:1351-0754
1365-2389
DOI:10.1111/ejss.13382