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《Chinese Agricultural Science Bulletin》 2014-02
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Variation Characteristics of Shandong Province's Four Seasons in Resent 50 Years

Dong Xuguang;Li Shengli;Cui Xiaofei;Liu Huanbin;Shandong Climate Center;Jinan Meteorological Bureau;Shandong Meteorological Information Center;  
In order to master the characteristics of the beginning dates and length of four seasons in each region of Shandong Province, the daily average temperature data at 115 meteorological stations in Shandong Province in 1961 to 2010 were selected. Using the methods of climate trending rate, the spatial and temporal variation characteristics of the average beginning dates and length of four seasons had been analyzed. The results showed that: decadal variation of four seasons was similar in northwest Shandong, middle Shandong and south Shandong. The averaged beginning dates of spring and summer in Shandong peninsula area was obviously later than others. Annual length of summer in Shandong peninsula area was obviously shorter than others, annual length of winter was longer. Before 2000, the decadal variation of beginning dates and length in each Shandong area were not obvious. After 2000, the average beginning dates of spring and summer were early in each Shandong area, of autumn and winter were similar. The average length of summer was longer and of winter was shorter. In recent 50 years, the beginning dates of spring was highly significantly earlier, of autumn was postpone, of summer and winter were not notable in each Shandong area. The length of spring was highly significantly longer in each Shandong area except Shandong peninsula area, of winter was significantly shorter and variation of the length of summer and autumn were not obviously except summer of Shandong peninsula area.
【Fund】: 中国气象局气候变化专项“山东省气候变化业务系统建设”(CCSF201325)
【CateGory Index】: P467
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