Impact of plant roots and soil organisms on soil micromorphology and hydraulic properties

Abstract: A soil micromorphological study was performed to demonstrate the impact of soil organisms on soil pore structure. Two examples are shown here. First, the influence of earthworms, enchytraeids and moles on the pore structure of a Greyic Phaeozem is demonstrated by comparing two soil samples taken from the same depth of the soil profile that either were affected or not affected by these organisms. The detected image porosity of the organism-affected soil sample was 5 times larger then the porosity of the not-affected sample. The second example shows macropores created by roots and soil microorganisms in a Haplic Luvisol and subsequently affected by clay coatings. Their presence was reflected in the soil water retention curve, which displayed multiple S-shaped features as obtained from the water balance carried out for the multi-step outflow experiment. The dual permeability models implemented in HYDRUS-1D was applied to obtain parameters characterizing multimodal soil hydraulic properties using the numerical inversion of the multi-step outflow experiment.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Impact of plant roots and soil organisms on soil micromorphology and hydraulic properties ; volume:61 ; number:19 ; year:2006 ; pages:S339-S343 ; extent:1 ; Biologia ; 61, Heft 19 (2006), S339-S343 (gesamt 1)

Beteiligte, Orts- und Zeitangaben

• Urheber: Kodešová, Radka ; Kodeš, Vít ; Žigová, Anna ; Šimůnek, Jiří

Weitere Informationen

• DOI: 10.2478/s11756-006-0185-7
• URN: urn:nbn:de:101:1-2409211746076.990635309293
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 15.08.2025, 07:35 MESZ