Multi-scale effects on the hydraulic behaviour of a root-permeated and compacted soil
Visualitza/Obre
10.1051/e3sconf/20199212014
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/175881
Tipus de documentText en actes de congrés
Data publicació2019
EditorEDP Sciences
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement 3.0 Espanya
Abstract
While roots have been generally proved to be beneficial to soil mechanical behaviour, different and counterposed results have been found when investigating their effects on soil hydraulic response. Roots affect the hydro-mechanical and chemical properties of soils at different scales. In this regard, the paper focuses on studying the macroscopic hydraulic properties of root-permeated and compacted soils considering microstructural features coming from mercury intrusion porosimetry and X-ray micro-tomography. The results are interpreted bearing in mind the influence of the different soil hydraulic states on roots structure and physiology. The analysis of the results shows that roots growing in a compacted soil at low stresses are opening fissures while decreasing micropore volume inside aggregates due to chemical effects. This response has important effects on the hydraulic behaviour of the soil.
CitacióFraccica, A.; Romero, E.; Fourcaud, T. Multi-scale effects on the hydraulic behaviour of a root-permeated and compacted soil. A: International Symposium on Deformation Characteristics of Geomaterials. "IS-Glasgow 2019 – 7th International Symposium on Deformation Characteristics of Geomaterials". EDP Sciences, 2019, p. 1-5.
ISBN978-2-7598-9064-4
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e3sconf_isg2019_12014.pdf | 505,6Kb | Visualitza/Obre |