000162692 001__ 162692
000162692 005__ 20180913060404.0
000162692 0247_ $$2doi$$a10.1016/j.jhydrol.2009.02.012
000162692 022__ $$a0022-1694
000162692 02470 $$2ISI$$a000266419700016
000162692 037__ $$aARTICLE
000162692 245__ $$aInferences from catchment-scale tracer circulation experiments
000162692 260__ $$bElsevier$$c2009
000162692 269__ $$a2009
000162692 336__ $$aJournal Articles
000162692 520__ $$aIn this paper the mechanisms determining the mobilization and transport of solutes driven by rainfall through runoff pathways at catchment scales are investigated through the analysis of tracer experiments. The hydro-chemical response of a small catchment in Northern Italy has been monitored in continuous during 4 weeks by properly measuring rainfall rates, streamflows and stream flux concentrations. The chemical response has been analyzed by employing two different tracers: nitrates from diffuse agricultural sources (NO3-) and lithium from a point injection (Li+). A modelling exercise simulating the observed hydro-chemical response of the test catchment has also been carried out. Inferences from the comparative analyses prove instructive, in particular concerning the scaling of mobilization processes and the age of runoff water. Indeed, the interactions between old and new water were found to be central to understand the mechanisms driving the transfer of solutes and pollutants from soil to stream water. The modeling exercises also evidenced the noteworthy potential of the formulation of transport by residence time distributions to describe large scale solute transport processes. (C) 2009 Elsevier B.V. All rights reserved.
000162692 6531_ $$aSolute transport
000162692 6531_ $$aTracer experiment
000162692 6531_ $$aHydrologic response
000162692 6531_ $$aControlling Subsurface Transport
000162692 6531_ $$aSolute Transport
000162692 6531_ $$aNutrient Transport
000162692 6531_ $$aUpper Subcatchment
000162692 6531_ $$aTransit Times
000162692 6531_ $$aBasin Scales
000162692 6531_ $$aStorm Events
000162692 6531_ $$aFlow Paths
000162692 6531_ $$aNitrate-N
000162692 6531_ $$aWater
000162692 700__ $$aBotter, G.
000162692 700__ $$aMilan, E.
000162692 700__ $$0240021$$aBertuzzo, E.$$g182988
000162692 700__ $$aZanardo, S.
000162692 700__ $$aMarani, M.
000162692 700__ $$0240022$$aRinaldo, A.$$g182281
000162692 773__ $$j369$$k3-4$$q368-380$$tJournal of Hydrology
000162692 909C0 $$0252014$$pECHO$$xU10273
000162692 909CO $$ooai:infoscience.tind.io:162692$$particle$$pENAC
000162692 917Z8 $$x182988
000162692 937__ $$aEPFL-ARTICLE-162692
000162692 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000162692 980__ $$aARTICLE