Abstract
It is generally difficult to quantify exactly the freshwater going in or out of the coastal watersheds along the northern Adriatic Sea because, on one hand, excess water is drained and pumped into the sea to prevent flooding but, on the other hand, water is brought onto the land from far away for irrigation. Fragmentation of water authorities makes it difficult to collect all the necessary information. Climate change and increasing salinization of the coastal aquifers make it imperative, however, to better know the quantities of freshwater involved in these small basins. The water budget of a small coastal agricultural watershed along the Adriatic Sea in Italy (The Quinto Basin near Ravenna) is presented here considering different land uses. The evaporation of open water and the evapotranspiration of wetlands, pine forests, bare soil and irrigated agriculture are calculated based on the Penman–Monteith equation and the Cropwat program. The current water budget is based on average climate data from 1989 to 2008 and drainage and irrigation data. Predictions for future evapotranspiration, net irrigation and hydrologic deficit are calculated with climate data from IPCC (The Fourth Assessment Report (AR4) 200, Climate change 2007). From the study results, the soil type may determine whether or not a crop will need more or less irrigation in the future. Regulations on land use should therefore consider which crop type can be grown on a specific soil type. Water budget analysis in scenarios A1b and A2 both show an increase of water deficits in the summer and an increase of water surplus in the winter. This is explained by the fact that a larger percentage of the rain will fall in winter and not during the growth season. The open water evaporation will decrease under future climate scenarios as a result of increased relative humidity in winter and decreased wind velocity. This may have a positive effect on the water cycle. The current irrigation is very abundant, but has beneficial effects in contrasting soil salinization and saltwater intrusion into the coastal aquifer.
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References
Allen RG, Pereira LS, Raes D, Smith M (1998) Crop evapotranspiration. Guidelines for computing cropwater requirements. FAO Irrigation and drainage paper 56
Antonellini M, Mollema P (2010) Impact of groundwater salinity on vegetation species richness in the coastal pine forests and wetlands of Ravenna, Italy. Ecol Eng 36:1201–1211. doi:10.1016/j.ecoleng.2009.12.007
Antonellini M, Mollema P, Giambastiani B, Banzola E, Bishop K, Caruso L, Minchio A, Pellegrini L, Sabia M, Ulazzi E, Gabbianelli G (2008) Salt water intrusion in the coastal aquifer of the southern Po-plain, Italy. Hydrogeol J 16:1541–1556. doi:10.1007/s10040-008-0319-9
ARPA (2008) On-line meteorologic database. Dexter. http://www.arpa.emr.it/sim/?osservazioni_e_dati/dexter. Accessed October 2008
Brunetti M, Maugeri M, Monti F, Nanni T (2006) Temperature and precipitation variability in Italy in the last two centuries from homogenized instrumental time series. Int J Climatol 26:345–381
Corticelli S (2003) Carta del uso del suolo (Land use map). Copertura vettoriale. Stampata dalla Regione Emilia Romagna, Italy
Filippi N (1994) Carta pedologica (Soil map) 1: 250.000. Stampata dalla Regione Emilia Romagna, Italy
Giambastiani BMS, Antonellini M, Oude Essink GHP, Stuurman RJ (2007) Salt water intrusion in the unconfined coastal aquifer of Ravenna (Italy): a numerical model. J Hydrol 340:94–104
Giambastiani BMS, Mollema PN, Antonellini M (2008) Groundwater management in the Northern Adriatic Coast (Ravenna, Italy): new strategies to protect the coastal aquifer from saltwater intrusion. In: König LF, Weiss JL (eds) Groundwater: modelling, management and contamination. Nova Publishers, p 167–193
Giorgi F, Lionello P (2008) Climate change projections for the Mediterranean region. Global Planet Change 63:90–104
Guidi W, Piccioni E, Bonari E (2008) Evapotranspiration and crop coefficient of poplar and willow short-rotation coppice used as vegetation filter. Bioresour Technol 99:4832–4840
Healy RW, Thomas C, Winter JW, LaBaugh, Lehn Franke O (2007) Foundations for effective water-resources and environmental management By U.S. Department of the Interior U.S. Geological Survey Circular 1308
IPCC (2007) The Fourth Assessment Report (AR4) 200. Climate change 2007
ITAS (1989–2008) Dati Agrimeteorologici dell istituto tecnicio agrario Statale luigi perdisa Ravenna
Klein Tank A, Wijngaard J, van Engelen A (2002) Climate of Europe; assessment of observed daily temperature and precipitation extremes. KNMI, De Bilt, p 36
Lionello P et al (2006) The Mediterranean climate: an overview of the main characteristics and issues. In: Lionello P, Malanotte-Rizzoli P, Boscolo R (eds) Mediterranean climate variability. Elsevier, Amsterdam, pp 1–26
Maidment DR (1992) Handbook of hydrology. McGraw Hill, Columbus
Marconi V, Antonellini M, Balugani E, Dinelli E (2011) Hydrogeochemical characterization of small coastal wetlands and forests in the Southern Po Plain (Northern Italy). Ecohydrology (in press)
Mencio A, Folch A, Mas-Pla J (2010) Analyzing hydrological sustainability through water balance. Environ Manage 45(5):1175–1190. doi:10.1007/s00267-010-9461-y
Mollema PN, Antonellini A, Gabbianelli G, Galloni E (2010a) Water budget management of a coastal pine forest in a Mediterranean setting (Marina Romea, Ravenna, Italy) (submitted)
Mollema PN, Antonellini M, Gabbianelli G and Laghi M (2010b) The influence of surface water evaporation on salt water intrusion in Ravenna, Italy. Implications for climate change. In: Proceedings of the salt water intrusion meeting, Sao Miguel, Azores, June 2010
Oleson JE, Bindi M (2002) Consequences of climate change for European agricultural productivity, land use and policy. Eur J Agron 16:239–262
Penman HL (1948) Natural evaporation from open water bare soil and grass. Proc R Soc Lond A193:120–146
Preti D (2002) Carta Geologica D’Italia alla scala 1:50 000. Foglia F223 Ravenna a cura di A. Amorosi. Realizzato dalla Regione Emilia Romagna
Ravenna Province (2007) Programma Rurale Integrato Provinciale P.R.I.P
Regione Emilia-Romagna (2010) Atlante idroclimatico dell’Emilia-Romagna 1961–2008. A cura di Vittorio Merletto. Arpa Servizio Idro-Meteo-Clima
Reidsma P, Ewert F, Boogaard H, van Diepen K (2009a) Regional crop modelling in Europe: the impact of climatic conditions and farm characteristics on maize yields. Agric Syst 100:51–60
Reidsma P, Ewert F, Oude Lansink A, Leemans R (2009b) Vulnerability and adaptation of European farmers: a multi-level analysis of yield and income responses to climate variability. Reg Environ Change 9:25–40. doi:10.1007/s10113-008-0059-3
Saxton KE (2003) Soil water characteristics Version 6.5.51. A computer program for calculating soil properties. USDA Agricultural Research Service and Department of Biological Systems Engineering, Washington State University
Smith M (1992) CROPWAT—A computer program for irrigation planning and management. Irrigation and Drainage Paper 46. FAO, Rome
Teobaldelli M, Mencuccini M, Piussi P (2004) Water table salinity rainfall and water use by umbrella pine trees (Pinus pinea L.). Plant Ecol 171:23–33
Tomozeiu R, Cacciamani C, Pavan V, Morgillo A, Busuioc A (2007) Climate change scenarios for surface temperature in Emilia-Romagna (Italy) obtained using statistical downscaling models. Theor Appl Climatol 90:25–47. doi:10.1007/s00704-006-0275-z
Tubiello FN, Donatelli M, Rosenzweig C, Stockle CO (2000) Effects of climate change and elevated CO2 on croppping systems: model predictions at two Italian Locations. Eur J Agron 13:179–189
Veggiani A (1971) Inquadramento geologico dei sondaggi geotecnica nell’area antistante la costa adriatica ravennate. In: Atti 2nd Conv. St. Probl. Geol. Appl., Genova, pp 1–7
Wriedt G, Van der Velde M, Aloe A, Bouraoui F (2008) A European irrigation map for spatially distributed agricultural modelling. Agric Manage 96(5):771–789. doi:10.1016/j.agwat.2008.10.012
Wriedt G, Van der Velde M, Aloe A, Bouraoui F (2009) Estimating irrigation water requirements. Eur J Hydrol 373:527–544
Wullschleger SD, Meinzer FC, Vertessy RA (1998) A review of whole-plant water use studies in trees. Tree Physiol 18:499–512
Zucaro R, Pontrandolfi A, (2005) Italian policy framework for water in agriculture. In: Paper presentato all’Oecd workshop on: Agriculture and Water: Sustainability, Markets and Policies, 14–18 novembre, Adelaide e Barbera (Australia)
Acknowledgments
This study is a part of the WATERKNOW project funded by CIRCLE MED. We thank the water company Hera SRL Ravenna and the land reclamation and irrigation authorities for sharing data. Enrico Balugani helped with the field work and data processing. We thank the anonymous reviewers for their constructive comments.
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Mollema, P., Antonellini, M., Gabbianelli, G. et al. Climate and water budget change of a Mediterranean coastal watershed, Ravenna, Italy. Environ Earth Sci 65, 257–276 (2012). https://doi.org/10.1007/s12665-011-1088-7
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DOI: https://doi.org/10.1007/s12665-011-1088-7