IPHEN project is a co-operative effort for the production and broadcast of phenological maps for Italian area and involves several agro-meteorological services, university departments and research institutions. The project was based on a simulation model developed in order to produce fortnightly maps of phenological phases for two widespread grapevine varieties, the early one Chardonnay, and the late one Cabernet sauvignon. The model was based on a simple and innovative method, founded on the summation of heating normal hours, instead of the classical growing degree days approach. Model operates on a highly detailed Digital Elevation Model, with pixel of 2 x 2 km. Thermal fields for maximum and minimum temperature were created applying specific geostatistical procedures to data acquired from the National Agrometeorological Network of CRA–UCEA. Calibration was carried out on bibliographic data coming from different regions of Italy. A standard routine to correct model results on the base of phenological data collected by a group of observers working on different parts of Italy was implemented. Final results were broadcasted on the Internet site www.ucea.it. Validation of model results, on the base of phenological data recorded in 2006, is presented and discussed. The choice of two phenologically extreme varieties was useful to describe spatial-temporal behavior of vine phenology in Italy. The robustness and the parsimony in therms of meteorological and phenological data requirements indicated that IPEN approach (i) could evolve to an operational service referred to single terroir, entire countries or the whole European area and (ii) could be conveniently applied to other grapes varieties, different crops or wild species.
|Titolo:||Iphen : a model for real time production of grapevine phenological maps|
FAILLA, OSVALDO (Secondo)
|Parole Chiave:||grapevines ; phenology ; real time maps|
|Settore Scientifico Disciplinare:||Settore AGR/03 - Arboricoltura Generale e Coltivazioni Arboree|
|Data di pubblicazione:||2007|
|Tipologia:||Book Part (author)|
|Appare nelle tipologie:||03 - Contributo in volume|