Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/atmos9010007 |
Analysis of the Spatio-Temporal Patterns of Dry and Wet Conditions in Central Asia | |
Ta, Zhijie1,2,3; Yu, Ruide1,3; Chen, Xi1,3; Mu, Guijin1,3; Guo, Yanfei1,3 | |
通讯作者 | Yu, Ruide |
来源期刊 | ATMOSPHERE |
ISSN | 2073-4433 |
出版年 | 2018 |
卷号 | 9期号:1 |
英文摘要 | Drought has become an important threat to industrial and agricultural production and human activities in Central Asia. Using the Standardized Precipitation Evapotranspiration Index (SPEI), we explored the spatial and temporal patterns of dry and wet changes in Central Asia from 1930-2014. The Mann-Kendall trend test and empirical orthogonal function analysis were used to analyze the characteristics of drought in the interannual and seasonal scales. The results showed that the interannual SPEI index in Central Asia presented a distinct phased feature, in the late 1930s, 1970s and 1990s, three consecutive periods of drought occurred. Seasonal SPEI presented different characteristics, with no obvious drying trends in spring and summer. Autumn and winter showed a wet trend. While an obviously wetting tendency has been detected for the winter season, it started in the mid-1950s. Spatially, drought frequency is 42.87% over the entire region of Central Asia from 1930 to 2014. Kyrgyzstan and Tajikistan are wet relative to other countries in Central Asia, with the frequency of drought occurring at 41.6% and 41.9%, respectively; lower than the average frequency of drought in Central Asia. The average frequency of drought in Kazakhstan is 43.1%. Droughts frequently occur in the central and southern parts of Kazakhstan, with the frequency of drought reaching 46.76%. Droughts hardly occur in eastern of Kazakhstan, as well as in the northeastern region. Turkmenistan and Uzbekistan are the two driest countries in Central Asia, especially in the desert region. The frequency of drought was 50.68% and 47.64% respectively. |
英文关键词 | droughts SPEI dry/wet conditions Central Asia |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000424095100007 |
WOS关键词 | PRECIPITATION EVAPOTRANSPIRATION INDEX ; DROUGHT CHARACTERISTICS ; CLIMATE-CHANGE ; TREND TEST ; CHINA ; AGRICULTURE ; TEMPERATURE ; DATASETS ; MODELS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
来源机构 | 中国科学院新疆生态与地理研究所 ; 新疆大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/207859 |
作者单位 | 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China; 2.Xinjiang Univ, Coll Resource & Environm Sci, Urumqi 830046, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Ta, Zhijie,Yu, Ruide,Chen, Xi,et al. Analysis of the Spatio-Temporal Patterns of Dry and Wet Conditions in Central Asia[J]. 中国科学院新疆生态与地理研究所, 新疆大学,2018,9(1). |
APA | Ta, Zhijie,Yu, Ruide,Chen, Xi,Mu, Guijin,&Guo, Yanfei.(2018).Analysis of the Spatio-Temporal Patterns of Dry and Wet Conditions in Central Asia.ATMOSPHERE,9(1). |
MLA | Ta, Zhijie,et al."Analysis of the Spatio-Temporal Patterns of Dry and Wet Conditions in Central Asia".ATMOSPHERE 9.1(2018). |
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