Dinamica dei sedimenti e degli habitat

La dinamica dei sedimenti e dei deflussi determina la morfologia dei corsi d’acqua come pure la loro funzionalità ecologica. In Svizzera, la dinamica dei sedimenti di molti corsi d’acqua è compromessa. Gli impianti di accumulazione, le opere di sbarramento e di rettificazione realizzate dall’uomo hanno modificato notevolmente la dinamica dei sedimenti, con numerose conseguenze sul piano ecologico. La riattivazione della dinamica sedimentologica e di deflusso, nonché delle funzioni ecologiche è il presupposto per un’efficace ripristino delle nostre acque (rivitalizzazione e risanamento della forza idrica) e costituisce un obiettivo importante della legge sulla sistemazione dei corsi d’acqua, nonché della revisione della legge sulla protezione delle acque. Il progetto di ricerca «Dinamica dei sedimenti e degli habitat» ha studiato l’impatto dell’uomo sulla dinamica dei sedimenti nei corsi d’acqua. Ha inoltre analizzato le misure per riattivare la dinamica nei corsi d’acqua e le conseguenze per la struttura e la funzionalità delle biocenosi.

I principali temi oggetto di studio sono stati:

  1. la riattivazione del trasporto solido e dinamizzazione dei corsi d’acqua

  2. la rivitalizzazione dei paesaggi golenali

Il modello di una rete di corsi d’acqua, con raffigurazione degli interventi antropici sulla dinamica dei sedimenti e le misure per la riattivazione della dinamica, offre una visione d’insieme sul tema.

Articolo riepilogativo sul contenuto e la struttura del progetto da scaricare

Geschiebe- und Habitatsdynamik - Forschungsprogramm "Wasserbau und Ökologie" Schleiss, A., Boes, R., Brodersen, J., Doering, M., Franca, M.J., Nadyeina, O., Pfister, M., Robinson, C., Scheidegger, C., Vetsch, D., Weber, C., Weitbrecht, V., Werth, S., 2014, Wasser Energie Luft 106 (2): 117-122 [pdf, 285 KB]

Fasi del progetto

Concluso
2013-2017

Direzione del progetto

Anna Belser (UFAM, coordinamento progetto)
Mario Franca (LCH)
Christoph Scheidegger (WSL)
David Vetsch (VAW)
Christine Weber (Eawag)

Gruppi di accompagnamento

UFAM: Rémy Estoppey, Susanne Haertel-Borer, Stephan Lussi, Manuel Nitsche, Diego Tonolla
Cantoni: Josef Hartmann (GR), Norbert Kräuchi (AG), Christian Marti (ZH), Vinzenz Maurer (BE), Sandro Ritler (LU), Thomas Stucki (AG)
Altri: Raimund Hipp (CDPNP), Roger Pfammatter (ASEA), Luca Vetterli (Pro Natura)

Comitato direttivo

UFAM: Hugo Aschwanden, Andreas Knutti, Evelyne Marendaz, Stephan Müller, Olivier Overney, Carlo Scapozza, Hans Peter Willi
Istituti di ricerca: Robert Boes (VAW), Christoph Hegg (WSL), Anton Schleiss (LCH), Bernhard Wehrli (Eawag)

Prodotti & Pubblicazioni

  • Schede tematiche

    Schede singole

    Domande di prassi

    • Nell’ambito del progetto «Dinamica dei sedimenti e degli habitat» è stata data risposta a 12 domande riguardanti l’amministrazione e la gestione dei corsi d’acqua. Link

    • Scheidegger, C., Weber, C., Schleiss, A., Vetsch, D., Boes, R., Brodersen, J., Doering, M., Franca, M.F., Nadyeina, O., Pfister, M., Robinson, C., Weitbrecht, V., Werth, S., 2014: Forschungsprogramm «Wasserbau und Ökologie»: Geschiebe- und Habitatsdynamik. Inside 14: 20-24. pdf

    • Scheidegger, C., Ziegler, M., Helbling, L., 2014: Artenförderung per Transplantation. Pro Natura Magazin 1/2014: 32-33. pdf

    • Schleiss, A., Boes, R., Brodersen, J., Doering, M., Franca, M.J., Nadyeina, O., Pfister, M., Robinson, C., Scheidegger, C., Vetsch, D., Weber, C., Weitbrecht, V., Werth, S., 2014: Geschiebe- und Habitatsdynamik - Forschungsprogramm «Wasserbau und Ökologie». Wasser Energie Luft 106 (2): 117-122. pdf

    • Vetsch, D., Weber, C., Scheidegger, C., Franca, M.F., 2016. Freier Lauf für Fliessgewässer. Der Bauingenieur 4: 10-11. pdf

    • Vetsch, D., Di Giulio, M., Franca, M.F., Juez, C., Scheidegger, C., Weber, C. 2018. Erkenntnisse aus dem Projekt "Geschiebe- und Habitatsdynamik". Wasser Energie Luft 110:195-200. pdf

    • Battisacco, E., Franca, M.J., Schleiss, A.J, 2015: Physical modelling of artificial river replenishment techniques to restore morphological conditions downstream of dams. Proceedings of the 36th IAHR World Congress, The Hague, the Netherlands, 28. June – 3. July 2015.

    • Battisacco, E., Franca, M.J., Schleiss A.J., 2015: Physical modeling of artificial river replenishment techniques to restore morphological conditions downstream of dams. EGU General Assembly, Geophysical Research Abstracts, Vol. 17, Vienna, Austria.

    • Battisacco, E., Franca, M.J., Schleiss, A.J, 2016: Laboratory experiments on the influence of the length of a replenishment volume applied with alternated geometrical configuration. Proceedings of ISRS 2016, Stuttgart, Germany, 19.-22. September 2016, p. 121.

    • Battisacco, E., Franca, M.J., Schleiss, A.J., 2016: Sediment replenishment: influence of the geometrical configuration on the morphological evolution of channel-bed. Water Resources Research 52 (11): 8879–8894, doi/10.1002/2016WR019157

    • Battisacco, E., Franca, M.J., Schleiss, A.J., 2016: Effect of geometrical configuration of sediment replenishment on the development of bed form patterns in a gravel bed channel. EGU General Assembly, Geophysical Research Abstracts, Vol. 18, Vienna, Austria.

    • Battisacco, E., Franca, M.J., Schleiss, A.J., 2016: Laboratory experiments on the influence of the length of a replenishment volume applied with alternated geometrical configuration. Proceedings of ISRS 2016, Stuttgart, Germany, 19.-22. September 2016, p.121.

    • Bösch, L., Battisacco, E., Franca, M.J., Schleiss, A.J., 2016: Influence of consecutive sediment replenishment on channel bed morphology. Proc. of River Flow 2016, St. Louis, USA, 11.-14. July 2016, pp. 1147-1155.

    • Facchini, M., Siviglia, A., Boes, R.M., 2015: Downstream morphological impact of a sediment bypass tunnel – preliminary results and forthcoming actions. Proc. First International Workshop on Sediment Bypass Tunnels. VAW-Mitteilungen 232: 137-146.

    • Fink, S., Lanz, T., Stecher, R., Scheidegger, C., 2017. Colonization potential of an endangered riparian shrub species. Biodiversity and Conservation, 26(9): 2099-2114.

    • Fink, S., Senn-Irlet, B., 2016: Pilzvorkommen voraussagen. Wie weit helfen Modellierungen des Lebensraums? Schweiz. Z. Pilzkd. / Bull. Suisse Mycol. 94, 2: 12-14.

    • Friedl, F., Weitbrecht, V., Boes, R. M., 2015: The role of bank erosion in restoration works in gravel-bed rivers. Proceedings of the 36th IAHR World Congress 28. June – 3. July 2015, The Hague, the Netherlands.

    • Friedl, F., Weitbrecht, V., Boes, R.M., 2016: Laboratory Experiments on Gravel Deposit Erosion. Proc. Intl. Symp. River Sedimentation. In: Wieprecht, Haun, Weber, Noack, Terheiden (eds.). Taylor & Francis Group, London. pp. 603-610.

    • Friedl, F., Weitbrecht, V., Boes, R.M., 2016: Erosion Pattern of Artificial Gravel Deposits. International Journal of Sediment Research 2017, doi.org/10.1016/j.ijsrc.2017.08.003

    • Juez, C., Battisacco, E., Franca, M.J., Schleiss, A.J., 2016: Modeling sediment pulses on an armored channel. Proc. of River Flow 2016, St. Louis, USA, 11.-14. July 2016. pp. 1314-1320.

    • Juez, C., Battisacco, E., Schleiss, A.J., Franca, M.J., 2016: Assessment of the performance of numerical modeling in reproducing a replenishment of sediments in a water-worked channel. Advances In Water Resources 92: 10-22, doi:10.1016/j.advwatres.2016.03.010

    • Martín Sanz, E.J., Doering, M., Robinson, C.T., 2017: Ecological assessment of a sediment bypass tunnel on a receiving stream in Switzerland. River Research and Applications, 33 (6): 925-936.

    • Martín Sanz, E.J., Ryo, M., Doering, M., Robinson, C.T., 2018. Evaluation of Restoration and Flow Interactions on River Structure and Function: Channel Widening of the Thur River, Switzerland. Water, 10(4): 439.

    • Rachelly, C., Weitbrecht, V., Vetsch, D. F., Boes, R. M., 2018. Morphological development of river widenings with variable sediment supply. River Flow 2018 - Ninth International Conference on Fluvial Hydraulics, Lyon-Villeurbanne, France. Web of Conferences. 40: 02007.

    • Schwindt, S., Franca, M. J., Schleiss, A.J., 2016: The influence of the opening width of check dams on bedload continuity of mountain rivers. In: Constantinescu, G., Garcia, M., Hanes, D. (eds.) River Flow 2016, pp. 1156–1160.

    • Schwindt, S., De Cesare, G., Boillat, J.-L., Schleiss, A.J., 2016: Physical modelling optimization of a filter check dam in Switzerland. In: Koboltschnig, G. (ed.) Proceedings of INTERPRAEVENT: Hazard and risk mitigation, volume 13: 828-836.

    • Schwindt, S., Piton, G., De Cesare, G., Recking, A., Schleiss, A.J., 2016: Study of the effects of a distanced retention basin combined with an open check dam on a physical model. In: Koboltschnig, G., (ed.) Proceedings of INTERPRAEVENT: Hazard and risk mitigation, volume 13: 322-323.

    • Schwindt, S., Franca, M. J., De Cesare, G., Schleiss, A.J., 2017: Analysis of mechanical-hydraulic deposition control measures. Geomorphology 295 (Supplement C): 467-479, doi: 10.1016/j.geomorph.2017.07.020

    • Schwindt, S., Franca, M.J., Schleiss, A.J., 2017. Bottom slope influence on flow and bedload transfer through contractions. Journal of Hydraulic Research, [under revision]: 20.

    • Schwindt, S., Franca, M.J., Schleiss, A.J., 2017. Effects of lateral and vertical constrictions on flow in rough steep channels with bedload. Journal of Hydraulic Engineering 143 (12), doi: 10.1061/(ASCE)HY.1943-7900.0001389

    • Schwindt, S., Franca, M.J., Schleiss, A.J., 2017: New element for optimizing the functioning of sediment traps. EGU General Assembley 2017, Vienna, Austria, p. 2059.

    • Schwindt, S., Franca, M.J., Reffo, A., Schleiss, A.J., 2017: Experimental study of sediment traps permeable for frequent floods. Nat. Hazards Earth Syst. [in review]. doi: 10.5194/nhess-2017-376

    • Vonwiller, L., Vetsch, D.F., Boes, R.M., 2015: On the role of modelling approach for simulation of bank erosion in straight, trapezoidal channel. Proceedings of the 36th IAHR World Congress, 28. June – 3. July, 2015, The Hague, the Netherlands.

    • Vonwiller, L., Vetsch, D.F., Boes, R.M., 2016: Numerical simulation of gravel deposit erosion. Proc. of 13th International Symposium on River Sedimentation (ISRS 2016), 19.-22. September, Stuttgart, Germany

    • Vonwiller, L., Vetsch, D.F., Boes, R.M., 2018: Modeling streambank and artificial gravel deposit erosion for sediment replenishment. Water, 10 (4): 508. pdf

    • Battisacco, E., 2016: Replenishment of sediment downstream of dams: erosion and transport processes. Thèse EPFL, n° 7239. pdf

    • Baumann, A., 2015: The effects of altered sediment regimes on Brown Trout Salmo trutta and their diet. Master thesis, Eawag. pdf

    • Bianco, L., Facchini, M., Siviglia, A., Colombini, M., 2016: 1D Modeling of morphological changes induced by repeated sediment bypass tunnel operations. Master Thesis, DICCA, University of Genova (in Italian).

    • Breitenmoser, T., 2014: Flechtenvorkommen in Grauerlenauen im Kanton Graubünden. BSc, ETHZ, Zürich, WSL, Birmensdorf.

    • Buhlmann, I., 2016: Influence of bank macro-roughness elements on suspended sediment transport in open-channel flows. Master Thesis, LCH-EPFL, Lausanne.

    • Deflorin, R., Facchini, M., Boes, R.M., 2014: Preliminary analysis of the first sediment bypass tunnel operation at the Albula River. Project Thesis, VAW, ETH Zürich.

    • Facchini, M., 2017: Downstream morphological effects of SBT operations. PhD thesis, ETH Zürich. pdf

    • Maechler, G., 2016: Influence of bank macro-roughness elements on suspended sediment transport in open-channel flows. Master Thesis, LCH-EPFL, Lausanne.

    • Martín Sanz, E.J., 2017: Flow-sediment interactions in managed rivers: influence on ecosystem structure and function. PhD thesis, ETH Zürich. pdf

    • Mörz, S., 2017: Einfluss des Keimsubstrates auf die Etablierung und das Konkurrenzverhalten von auentypischen und invasiven Pflanzenarten. BSc Arbeit, Hochschule Weihenstephan – Triesdorf, WSL Birmensdorf.

    • Nef, D., 2014: Diversität epiphytischer Flechtenarten in Grauerlenwäldern entlang der Zuflüsse des Rheins im Kanton Graubünden. BSc, ETHZ, Zürich und Birmensdorf.

    • Schenkel, P., 2015: Hydraulische und morphologische 2d Modellierung einer eigendynamischen Flussaufweitung. Master thesis, VAW, ETH Zurich.

    • Schwindt, S., 2017: Hydro-morphological processes through permeable sediment traps at mountain rivers. Thèse EPFL, n° 7655, doi 10.5075/epfl-lchcomm-71 pdf

    • Vonwiller, L., 2017: Numerical Modeling of Morphological Response of Gravel-Bed Rivers to Sediment Supply. PhD thesis, ETH Zürich, pdf

    • Zoderer, A., 2016: Ufererosion im Rahmen von Revitalisierungsprojekten. Master Thesis, VAW, ETH Zürich.