The verticalrootdistributionofriparianvegetationplaysarelevantroleinsoilwaterbalance,inthe partition ofwater fluxesintoevaporationandtranspiration,inthebiogeochemistryofhyporheic corridors, inrivermorphodynamicsevolution,andinbioengineeringapplications.Theaimofthiswork is toassesstheeffectofthestochasticvariabilityoftheriverlevelontherootdistributionof phreatophyticplants.Afunctiondescribingtheverticalrootprofile hasbeenanalyticallyobtainedby coupling awhiteshotnoiserepresentationoftheriverlevelvariabilitytoadescriptionofthedynamics of rootgrowthanddecay.Therootprofile dependsoneasilydeterminedparameters,linkedtostream dynamics, vegetationandsoilcharacteristics.Theriparianvegetationofarivercharacterizedbyahigh variabilityturnsouttohavearootingsystemspreadoverlargerdepths,butwithshallowermeanroot depths. Incontrast,alowerrivervariabilitydeterminesrootprofiles withhighermeanrootdepths.

Effect of water table fluctuations on phreatophytic root distribution / Tron, Stefania; Laio, Francesco; Ridolfi, Luca. - In: JOURNAL OF THEORETICAL BIOLOGY. - ISSN 0022-5193. - STAMPA. - 360:(2014), pp. 102-108. [10.1016/j.jtbi.2014.06.035]

Effect of water table fluctuations on phreatophytic root distribution

TRON, STEFANIA;LAIO, FRANCESCO;RIDOLFI, LUCA
2014

Abstract

The verticalrootdistributionofriparianvegetationplaysarelevantroleinsoilwaterbalance,inthe partition ofwater fluxesintoevaporationandtranspiration,inthebiogeochemistryofhyporheic corridors, inrivermorphodynamicsevolution,andinbioengineeringapplications.Theaimofthiswork is toassesstheeffectofthestochasticvariabilityoftheriverlevelontherootdistributionof phreatophyticplants.Afunctiondescribingtheverticalrootprofile hasbeenanalyticallyobtainedby coupling awhiteshotnoiserepresentationoftheriverlevelvariabilitytoadescriptionofthedynamics of rootgrowthanddecay.Therootprofile dependsoneasilydeterminedparameters,linkedtostream dynamics, vegetationandsoilcharacteristics.Theriparianvegetationofarivercharacterizedbyahigh variabilityturnsouttohavearootingsystemspreadoverlargerdepths,butwithshallowermeanroot depths. Incontrast,alowerrivervariabilitydeterminesrootprofiles withhighermeanrootdepths.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2626760
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