Analysis of seasonal drought variations in Zhangjiakou since 1965
HU Xue1, MA Guang1, LI Chunqiang2, CHE Shaojing3, KANG Xiyan2, LIU Xingyan1
1. Zhangjiakou Meteorological Bureau, Zhangjiakou, 075000, China;
2. Hebei Province Meteorological Research Institute, Shijiazhuang, 050021, China;
3. Hebei Province Climate Center, Shijiazhuang, 050021, China
Abstract:Drought hazards have a great adverse effect on the agricultural production in Zhangjiakou. Based on the meteorological data of 14 weather stations from 1965 to 2018, the temporal-spatial characteristics of the seasonal drought variations in Zhangjiakou region are analyzed by the standardized precipitation index (SPI) and the statistic methods. It is shown that the summer drought sees a significant increasing trend, with a long time duration and in a large space, especially after the 1990s. But the spring and autumn drought sees a decreasing trend, and becomes weak in the 21st century. And the winter drought sees no significant variation. It is imperative to strengthen the management for the summer drought.
胡雪, 马光, 李春强, 车少静, 康西言, 刘星燕. 1965年以来张家口地区季节干旱变化特征分析[J]. 科技导报, 2019, 37(20): 40-48.
HU Xue, MA Guang, LI Chunqiang, CHE Shaojing, KANG Xiyan, LIU Xingyan. Analysis of seasonal drought variations in Zhangjiakou since 1965. Science & Technology Review, 2019, 37(20): 40-48.
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