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UID:pretalx-flowpath-2025-HECBVM@talks.staging.osgeo.org
DTSTART;TZID=CET:20250612T115000
DTEND;TZID=CET:20250612T120000
DESCRIPTION:A quantitative assessment of mountain-front recharge from Alpin
 e and Apennine areas to Po Plain alluvial aquifers has often been overlook
 ed in previous studies and is therefore addressed in this research project
  through the study of two pilot piedmont areas (Brescia and Bologna).\nThe
  recharge assessment is performed using 1) endmember mixing models based o
 n conservative tracers of water (water stable isotopes) and salinity (Cl/B
 r ratio) and 2) water balance calculations based on discharge measurements
  of mountain rivers. A one-year monitoring of 41 wells tapping the alluvia
 l piedmont aquifers\, 17 mountain springs/wells\, 11 mountain rivers/strea
 ms and 3 rainwater collecting stations was carried out.\nResults showed th
 at the sources of groundwater recharge vary in the different areas and sub
 -areas depending on the hydrogeological features and the land and water us
 es. More specifically\, in the moraine of Lake Iseo in the Brescia area (F
 ranciacorta)\, recharge is given by the mixing of 1) surface mountain-fron
 t recharge (sMFR) from minor streams coming from the moraine hills\, 2) lo
 cal (plain area) precipitations and 3) surface-water-irrigation return flo
 w. In the piedmont urban area of Brescia recharge is due to 1) focused mou
 ntain-block recharge (fMBR) from the Alpine alluvial aquifer of Val Trompi
 a\, 2) diffuse mountain-block recharge (dMBR) from the karst Alpine aquife
 r and 3) sMFR from the Mella River. In the carbonate area of Carso Brescia
 no recharge is mainly due to 1) dMBR from the karst Alpine aquifer and 2) 
 surface-water-irrigation return flow. Concerning the Apennine area of Bolo
 gna\, the alluvial fan aquifers of the Reno\, Savena and Idice Rivers are 
 recharged by (1) sMFR from the rivers and (2) local precipitations. Rechar
 ge from MBR appears negligible in most cases. Mixing models also showed th
 at a relevant source of water for pumping wells in Bologna is deep fossil 
 groundwater. \nThis project was funded by the European Union – Next Gene
 ration EU – PRIN 2022
DTSTAMP:20260427T072944Z
LOCATION:Room R3
SUMMARY:Assessing Alpine and Apennine mountain-front recharge to Po Plain a
 lluvial aquifers: the AMBRA project - Marco Rotiroti
URL:https://talks.staging.osgeo.org/flowpath-2025/talk/HECBVM/
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