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首页> 外文期刊>The Science of the Total Environment >Influence of climate cycles on grapevine domestication and ancient migrations in Eurasia
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Influence of climate cycles on grapevine domestication and ancient migrations in Eurasia

机译：气候周期对欧亚大陆葡萄驯化和古代迁徙的影响

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The objective of this work is to investigate the Holocenic climate cycles that may have influenced the domestication of grapevine in the Subcaucasian area and its subsequent spread in Eurasia. The analysis covered the longitudinal belt ranging from the Iberian Peninsula to Japan, seen as the preferential pathway for the Holocenic spread of grapevine and many other crops in Eurasia. Spectral analysis was considered as the criterion of investigation and the Holocenic cycles were analyzed considering different geochemical and biological proxies, of which seven are directly referred to vine. In this context the relation of the abovementioned proxies with spectral peaks of possible causal factors like Solar activity (SA), North Atlantic oceanic factors (Atlantic Multidecadal Oscillation - AMO and North Atlantic Oscillation - NAO), and subtropical oceanic factors (El Nino Southern Oscillation - ENSO) was also analyzed.In order to acquire a sufficiently wide number of proxies sensitive to the causal factors, we referred to a latitudinal belt wider than the one colonized by vine, also acquiring proxy from the Scandinavian area, notoriously susceptible to North Atlantic forcings. The analysis of the proxy spectral peaks, considering 20 classes with a 50-years step in the 0–1000 years range, showed that the 50% of the classes have a higher frequency of peaks at East than West, the 20% a higher frequency at West than East and the 10% an equal frequency, showing the efficiency of the propagation of Western signals towards the center of Eurasia.The search of the causal factors spectral peaks in the proxy series showed that AMO, NAO and SA acted with a certain regularity on the entire belt investigated both latitudinally and longitudinally, while spectral peaks linked to ENSO underwent a considerable attenuation moving northward.Finally, the specific analysis on viticultural proxies showed common peaks with causal factors.
机译：这项工作的目的是调查可能影响亚高加索地区葡萄的驯化及其随后在欧亚大陆传播的全新世气候周期。分析涵盖了从伊比利亚半岛到日本的纵带，被视为欧亚大陆葡萄和许多其他农作物的全新世代传播的优先途径。光谱分析被认为是研究的标准，并考虑了不同的地球化学和生物代理来分析全新世循环，其中七个直接被称为葡萄树。在这种情况下，上述代理与太阳活动（SA），北大西洋海洋因素（Atlantic Multidedecal Oscillation-AMO和North Atlantic Oscillation-NAO）和亚热带海洋因素（El Nino Southern Oscillation）的可能因果谱峰之间的关系-ENSO）。为了获得足够多的对因果关系敏感的代理，我们提到的纬度带宽于葡萄树所定殖的纬度带，还从斯堪的纳维亚地区获得了代理权，这是众所周知的北大西洋易感地区强迫。对代理光谱峰的分析，考虑了20个类别，在0-1000 s范围内以50年为步长，表明50％的类别在东部的峰值频率比西部的高，而20％的类别的峰值较高。在西方比东方多10％的等频率处，表明西方信号向欧亚大陆中心传播的效率。对代理序列中因果谱峰的搜索表明，AMO，NAO和SA在一定程度上起作用整个带的规律性在纬向和纵向上都进行了调查，而与ENSO相关的光谱峰则向北移动了相当大的衰减。最后，对葡萄栽培代理的具体分析显示，有因果关系的共同峰。

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