| Autor: |
Benjamin Bois, Daniel Joly, Hervé Quénol, Philippe Pieri, Jean-Pierre Gaudillière, Dominique Guyon, Etienne Saur, Cornelis van Leeuwen |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
OENO One, Vol 52, Iss 4 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2494-1271 |
| Popis: |
Temperature is a driving climate variable for grapevine development and grape ripening kinetics. The current study first reports interpolation of daily minimum and maximum temperature data by a weather station network from 2001 to 2005 in the Bordeaux (France) region by means of regression kriging using terrain, satellite and land-cover derived covariates. Second it analyses the interpolation procedure errors in agroclimatic indices by means of cross validation and then it compares the field observations of grapevine phenology to temperature-based predicted phenology applied to interpolated data. Finally it proposes a simple method to perform a zoning of Bordeaux vineyards based upon the spatialized prediction of the day on which grape sugar content reaches 200 g.L-1. The zoning performed shows large potential differences in grape maturity date (up to 20 days) induced by temperature spatial variability in a low relief area. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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