Spatiotemporal Characteristics of Dryness/Wetness in the Wine Regions of China from 1981 to 2015

文献类型： 外文期刊

第一作者： Yang, Xiaojuan

作者： Yang, Xiaojuan;Liu, Yuan;Bai, Wei;Chen, Di;Liu, Buchun;Yang, Xiaojuan;Liu, Yuan;Bai, Wei;Chen, Di;Liu, Buchun;Yao, Ning;Hu, Wei;Ji, Xingjie;Luan, Qingzu

作者机构：

关键词： China; wine region; SPEI; drought; wet; climatic factors

期刊名称：AGRONOMY-BASEL （ 影响因子：3.949； 五年影响因子：4.117 ）

ISSN：

年卷期： 2022 年 12 卷 4 期

页码：

收录情况： SCI

摘要： China has a marked continental monsoon climate characterized by dry and wet hazards that have destructive impacts on grape yields and quality. The purpose of this study was to analyze the spatiotemporal characteristics of dryness/wetness in the wine regions of China and explore the links between these variations and large-scale climatic factors. The crop-specific standardized precipitation evapotranspiration index (SPEI) was used to characterize the dryness/wetness using meteorological data collected at 168 meteorological stations located in or near the wine regions from 1981-2015. Results showed that most wine regions of China experienced a wetting trend. The drought and wet event characteristics were region- and site-specific. The main wine regions of China (e.g., Xinjiang, Helan Mountain and Hexi Corridor) were characterized by relatively high drought severity; the extreme drought frequencies of the three regions were higher as well (11.5%, 3.3%, and 3.6%, respectively). Xinjiang was also characterized by a high wetness severity and an extremely high wetness frequency of 16%, but the wetness severity decreased over time. A 4-6-year periodical oscillation was commonly detected over the wine regions. The dryness/wetness characteristics were highly associated with the Southern Oscillation Index, Nino 3.4 and the Indian Ocean Dipole, with highest correlation coefficients of -0.40, 0.36 and 0.43 at lag times of 11, 8, and 11 months, respectively. The serious dry and wet events that occurred in 2001 and 1998, respectively, were speculated to be associated with anomalous atmospheric circulation patterns. These results can be used to inform grapevine stakeholders at various levels (e.g., farmer and industry) for developing strategies to mitigate and adapt dryness/wetness events in the wine regions of China. It is expected that the approach proposed in this study can also be applicable to wine regions of other countries.

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