Abstract
This research focuses on the reconstruction of the morphological modifications of the coastal floodplain of Rapallo (Eastern Liguria, NW Italy) due to human intervention since the eighteenth century. By the second half of the nineteenth century Rapallo became a popular tourist destination: as a consequence, the urban development of the floodplain started and became very intense after Second World War, strongly modifying former landforms.
The study was carried out using multi-temporal cartographic and photographic comparison, the analysis of geo-thematic cartography and documentation from the Basin Master Plan and the town plan of Rapallo, the interpretation of cores from regional database and field data from direct urban surveys. Man-made landforms were mapped and classified using the new geomorphological legend which is in progress in the framework of the Working Groups on “Cartography” and “Urban Geomorphology” of the Italian Association of Physical Geography and Geomorphology (AIGEO).
The main significant morphological changes were stream diversions and channeling, excavations and filling, quarry activities, embankments along the shoreline and overurbanization. Human interventions, in addition to local geomorphological and climate features, increased flood hazard and risk, which historically affected the city of Rapallo.
References
Ballardini D., 1994. In burgo Rapalli. Documenti e monumenti di un borgo medievale (In Rapallo village. Documents and monuments of a medieval city). Ecig, Genova.
Bathrellos G.D., 2007. An Overview in Urban Geology and Urban Geomorphology. Proceedings of the 11th International Congress, Athens, May, 2007. Bulletin of the Geological Society of Greece 40: 1354–1364.
Brandolini P., 1994. Le trasformazioni della piana costiera di Rapallo (Liguria Orientale) dal 1700 ad oggi: rapporti fra condizioni morfologiche ed interventi dell’uomo (The Rapallo coastal floodplain changes from 1700 to nowadays: relationships between morphology and human interventions). In: Citarella F. (ed.), Studi Geografici in onore di Domenico Rocco, Loffredo Editore, Napoli: 27–40.
Brandolini P., 1995. Modificazioni della fascia costiera compresa tra Portofino e Zoagli (Liguria Orientale) a seguito dello sviluppo turistico (Modifications of the coastal zone between Portofino and Zoagli following tourist development). Memorie della Società Geografica Italiana, Special Number n. 1 “Lo spazio costiero italiano. Problemi di crescita, sensibilità ambientale”, Società di Studi Geografici, Firenze: 243–252.
Brandolini P., Canepa G., Faccini F., Robbiano A., Terranova R., 2007. Geomorphological and Geo-Environmental features of the Graveglia Valley (Ligurian Apennines, Italy). Geografia Fisica e Dinamica Quaternaria 30: 99–116.
Brandolini P., Faccini, Robbiano A., Terranova R., 2008. Relationship between flood hazards and geomorphology applied to land planning in the upper Aveto Valley (Liguria, Italy). Geografia Fisica e Dinamica Quaternaria 31: 73–82.
Brandolini P., Cevasco A., Firpo M., Robbiano A., Sacchini A., 2012. Geo-hydrological risk management for civil protection purposes in the urban area of Genoa (Liguria, NW Italy). Natural Hazards and Earth System Sciences 12: 943–959.
Brandolini P., Cevasco A. 2015. Geo-hydrological Risk Mitigation Measures and Land-Management in a Highly Vulnerable Small Coastal Catchment. In: Lollino G. et al. (eds.), Engineering Geology for Society and Territory. Springer International Publishing Switzerland, 5: 759–762.
Brandolini P., Cevasco A., Capolongo D., Pepe, G. Lovergine F., Del Monte M. 2017. Response of terraced slopes to a very intense rainfall event and relationships with land abandonment: a case study from Cinque Terre (Italy). Land Degradation & Development: 1–27. DOI: 10.1002/ldr.2672.
Brown A.G., Tooth S., Bullard J.E., Thomas D.S.G., Chiverrell R.C., Plater A.J., Murton J., Thorndycraft V.R., Tarolli P., Rose J., Wainwright J., Downs P., Aalto R., 2017. The geomorphology of the Anthropocene: emergence, status and implications. Earth Surf. Process. Landforms 42: 71–90. DOI: 10.1002/esp.3943.
Chengtai D., 1996. An approach to theory and methods of urban geomorphology. Chinese Geographical Science 6 (1): 88–95.
Cimmino F., Faccini F., Robbiano A., 2004. Stones and coloured marbles of Liguria in historical monuments. Per. Mineral. 73 (Special Issue 3: a showcase of the Italian research in applied petrology): 71–84.
Città Metropolitana di Genova, 2015. Piano di Bacino Ambito 15, piano stralcio per la tutela dal rischio idrogeologico di cui all’art. 1, comma 1 del D.L. n. 180/1998 convertito in Legge n. 267/1998 e s.m.i. Available at: http://www.pianidibacino.ambienteinliguria.it/GE/ambito15/ambito15.html.
Coates D., 1974. Environmental geomorphology and landscape conservation, Vol. 2, Urban areas, Pennsylvania, U.S.A., Hutchinson & Ross, Stroudsburg, Dowden.
Coates D., 1976. Urban Geomorphology. Colorado, US.A. Geological Society of America, Sp. Paper 174.
Comune di Rapallo, 2014. Studi Geologici a supporto del Piano Urbanistico Comunale. Progetto definitivo.
Cooke R.U., 1976. Urban geomorphology. Geographical Journal 142 (1): 59–65.
Cooke R.U., Brunsden D., Doornkamp J.C., Jones D.K.C., 1982. Urban geomorphology in drylands. University Press, Oxford.
Cortemiglia G.C., Terranova R., 1974. Aspetti geomorfologici, idrologici ed oceanografici del Golfo di Rapallo (Geomorphogical, hydrological and oceanographic aspects of the Gulf of Rapallo). Atti della Società italiana di scienze naturali: 285–384.
Crutzen PJ., 2002. Geology of mankind. Nature 415: 23. DOI:10.1038/415023a
Del Monte M., D’Orefice M., Luberti G.M., Marini R., Pica A., Vergari F. 2016. Geomorphological classification of urban landscapes: the case study of Rome (Italy). Journal of Maps 12: 178–189.
Del Monte M., Fredi P., Pica A., Vergari F. 2013. Geosites within Rome City Center (Italy): a mixture of cultural and geomorphological heritage. Geografia Fisica e Dinamica Quaternaria 36: 241–257.
Del Monte M., Vergari F., Brandolini P., Capolongo D., Cevasco A., Ciccacci S., Conoscenti C., Fredi P., Melelli L., Rotigliano E., Zucca F. 2015. Multi-method evaluation of denudation rates in small mediterranean catchments. Engineering Geology for Society and Territory – Vol 1: Climate Change and Engineering Geology: 563–567.
Ellison R.A., Booth S.L., Strange P.J., 1993. Geological mapping in urban areas. Episodes 16 (3): 383–387.
Eyles N., 1997. Environmental geology of urban areas. Newfoundland, Canada, Geological Association of Canada, Geotext 3.
Faccini F., Brandolini P., Robbiano A., Perasso L., Sola A., 2005. Instability, precipitation phenomena and land planning: The flood of 2002 in lower Lavagna valley (Eastern Liguria, Italy) [Fenomeni di dissesto e precipitazioni in rapporto alla pianificazione territoriale: L'evento alluvionale del novembre 2002 nella bassa val Lavagna. Geografia Fisica e Dinamica Quaternaria Suppl. 7: 145–153.
Faccini F., Luino F., Sacchini A., Turconi L., De Graff J. V., 2015. Geohydrological hazards and urban development in the Mediterranean area: an example from Genoa (Liguria, Italy). Natural Hazards and Earth System Sciences 15(12): 2631–2652. DOI: 10.5194/nhess-15-2631-2015.
Faccini F., Giostrella P., Melillo M., Sacchini A., Santangelo M., 2017. Heavy rains triggering flash floods in urban environment: a case from Chiavari (Genoa Metropolitan area, Italy). Italian Journal of Engineering Geology and Environment, Special Issue: 51–66. DOI: 10.5194/nhess-15-2631-2015.
Gruppo Nazionale Geografia Fisica e Geomorfologia, G.B. Pellegrini, A. Carton, D. Castaldini, A. Cavallin, L. D'Alessandro, F. Dramis, B. Gentili, L. Laureti, A. Prestininzi, G. Rodolfi, U. Sauro, M. Sorriso Valvo, V. Spagna (Eds.), 1993. Proposta di legenda geomorfologica ad indirizzo applicativo. Geografia Fisica e Dinamica Quaternaria 16: 129–152.
Laureti L., Sauro U., Terranova R., Brandolini P., Firpo M., Pirola A., Piccazzo M., Rossetti R., Smiraglia C., 1996. The physical change in the Mediterranean basin with particular reference to Italy. Conference of the International Geographical Union (IGU), Moscow, Russia, August 14–18, 1995, Bollettino Societá Geografica It., serie XII, 1: 7–44.
Luino F., Nigrelli G., Turconi L., Faccini F., Agnese C., Casillo F., 2016. A proper land-use planning through the use of historical research. Disaster Advances 9(1): 8–19.
Marini M., 1981. Analisi geologica-strutturale ed interpretazione paleogeografica e tettogenetica dei Calcari del Monte Antola (Appennino Ligure) (Geological-structural analysis and palaeogeographic and tectogenetic interpretation of the Calcari del Monte Antola (Appennino Ligure). Ofioliti 6 (1): 119–150.
Paoletti A., 2000. Risorse idriche ed impatto ambientale del drenaggio urbano (Water resources and environmental impact of urban drainage). In: Paoletti A. (ed.) Atti delle giornate di studio in memoria di Carlo Cao, Cagliari 18–20 novembre 1998, CDSU, Milano.
RiskNET Fondazione Montagna Sicura, 2017. Online: www.risknet-alcotra.org (accessed 21 July 2017).
Sacchini A., Ferraris F., Faccini F., Firpo M., 2012. Environmental climatic maps of Liguria. Journal of Maps 8 (3): 199–207. DOI: http://dx.doi.org/10.1080/17445647.2012.703901.
Scarin F., 1959. Rapallo, nota di Geografia Urbana. Annali di Ricerche e Studi di Geografia: 189–214.
Servizio Geologico Nazionale, 1994. Carta geomorfologica d’Italia, scala 1:50.000, Guida al rilevamento (Geomorphological map of Italy at 1:50,000 scale, Survey guide). Quaderni serie III, 4, Istituto Poligrafico e Zecca dello Stato, Roma.
Terranova R., Piccazzo M., Firpo M., Brandolini P., 2000. Coastal change in global change: the case of Italy. In Vol. Geographies of diversity, Italian perspectives, Geo-Italy 4. Società Geografica Italiana e CNR – Italian Committee for IGU, published in occasion of the I.G.U. International Conference, Seoul: 305–321.
Todd D.K., Mais L.W., 2005. Groundwater hydrology. 3rd edition. John Wiley & Sons Inc., New Jersey (USA).
Waters C.N., Zalasiewicz J.A., Summerhayes C., Barnosky A.D., Poirier C., Gałuszka A., Cearreta A., Edgeworth M., Ellis E.C., Ellis M., Jeandel C., Leinfelder R., McNeill J.R., deB R.D., Steffen W., Syvitski J., Vidas D., Wagreich M., Williams M., Zhisheng A., Grinevald J., Odada E., Oreskes N., Wolfe A. 2016. The Anthropocene is functionally and stratigraphically distinct from the Holocene. Science 351: aad2622. DOI:10.1126/science.aad2622.