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Impact of Climate Change on Olive Crop Production in Italy
Atmosphere ( IF 2.9 ) Pub Date : 2020-06-04 , DOI: 10.3390/atmos11060595
Fabio Orlandi , Jesús Rojo , Antonio Picornell , Jose Oteros , Rosa Pérez-Badia , Marco Fornaciari

The effects of climate change on agricultural systems raise important uncertainties about the future productivity and suitability of crops, especially in areas suffering from intense environmental changes. Olive groves occupy Mediterranean areas characterized by seasonal temporary droughts, which cause this cultivation to be highly dependent on local microclimatic conditions. Olive crop production can be reliably estimated using pollen intensity metrics together with post-pollination environmental conditions. In this study, we applied this kind of statistics-based models to identify the most relevant meteorological variables during the post-pollination periods for olive fruit production. Olive pollen time-series for the period of 1999–2012 was analyzed in 16 Italian provinces. Minimum and maximum temperature during spring and summer (March–August) showed a negative relationship with olive production, while precipitation always showed a positive correlation. The increase in aridity conditions observed in areas of Italy during the summer represents an important risk of decreasing olive crop production. The effect of climate change on the olive production trend is not clear because of the interactions between human and environmental factors, although some areas might show an increase in productivity in the near future under different climate change scenarios. However, as more drastic changes in temperature or precipitation take place, the risk to olive production will be considerably greater.

中文翻译:

气候变化对意大利橄榄作物生产的影响

气候变化对农业系统的影响给未来的农作物生产力和适宜性带来了重要的不确定性,尤其是在环境变化剧烈的地区。橄榄树栖息在地中海地区,其特征是季节性的临时干旱,这导致这种种植高度依赖当地的微气候条件。可以使用花粉强度指标以及授粉后的环境条件来可靠地估算橄榄作物的产量。在这项研究中,我们应用了这种基于统计的模型来确定在授粉后橄榄果生产期间最相关的气象变量。在意大利的16个省份中分析了1999-2012年间橄榄花粉的时间序列。春季和夏季(3月至8月)的最低和最高温度与橄榄产量呈负相关,而降水量始终呈正相关。夏季在意大利地区观察到的干旱状况增加,是造成橄榄作物减产的重要风险。由于人与环境因素之间的相互作用,气候变化对橄榄生产趋势的影响尚不明确,尽管在不同的气候变化情景下,某些地区在不久的将来可能会显示出生产率的提高。但是,随着温度或降水的急剧变化,橄榄生产的风险将大大增加。夏季在意大利地区观察到的干旱状况增加,是造成橄榄作物减产的重要风险。由于人与环境因素之间的相互作用,气候变化对橄榄生产趋势的影响尚不清楚,尽管在不同的气候变化情景下,某些地区在不久的将来可能会显示出生产率的提高。但是,随着温度或降水的剧烈变化,橄榄生产的风险将大大增加。夏季在意大利地区观察到的干旱状况增加,是造成橄榄作物减产的重要风险。由于人与环境因素之间的相互作用,气候变化对橄榄生产趋势的影响尚不清楚,尽管在不同的气候变化情景下,某些地区在不久的将来可能会显示出生产率的提高。但是,随着温度或降水的剧烈变化,橄榄生产的风险将大大增加。尽管在不同的气候变化情景下,某些地区在不久的将来可能会提高生产率。但是,随着温度或降水的剧烈变化,橄榄生产的风险将大大增加。尽管在不同的气候变化情景下,某些地区在不久的将来可能会提高生产率。但是,随着温度或降水的剧烈变化,橄榄生产的风险将大大增加。
更新日期:2020-06-04
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