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首页> 外文期刊>Revista Brasileira de Fruticultura >Uso da temperatura para cálculo do índice de seca de regi?es produtoras de uva
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Uso da temperatura para cálculo do índice de seca de regi?es produtoras de uva

机译:利用温度计算葡萄产区的干旱指数

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The Geoviticulture Multicriteria Climatic Classification System (CCM), used to characterize the climate in grape production regions, is composed by the Heliothermal Index (HI), the Cool Night Index (CI) and the Dryness Index (DI), which is based on the potential soil water balance. The calculation of DI values requires precipitation and evapotranspiration potential (ETP) data, estimated using the standard Penman-Monteith method. However, not all grape regions have the climatic variables required to use this ETP method. Therefore, it is important to use other methods to estimate ETP based only on air temperature available data, such as the Hargreaves ETP method. The present study compared the Drought Index values calculated using the Penman-Monteith and the Hargreaves methods for different grape growing regions of the world. Climate data from 83 meteorological stations were used, representing grapevine regions located in 18 countries. The Hargreaves equation achieved a very good performance and can be used in the CCM system in places where there are insufficient data for the Penman-Monteith method.
机译:地理葡萄栽培多标准气候分类系统(CCM)用于表征葡萄产区的气候,由太阳热指数(HI),凉爽夜晚指数(CI)和干燥指数(DI)组成,该指数基于潜在的土壤水分平衡。 DI值的计算需要使用标准Penman-Monteith方法估算的降水和蒸散潜力(ETP)数据。但是,并非所有葡萄产区都有使用此ETP方法所需的气候变量。因此,重要的是使用其他方法仅基于空气温度可用数据来估算ETP,例如Hargreaves ETP方法。本研究比较了使用Penman-Monteith和Hargreaves方法计算的世界不同葡萄种植地区的干旱指数值。使用了来自83个气象站的气候数据,这些气象站代表了位于18个国家的葡萄种植区。 Hargreaves方程取得了很好的性能,可以在Penman-Monteith方法的数据不足的地方的CCM系统中使用。

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