Journal of Geographical Sciences ›› 2020, Vol. 30 ›› Issue (9): 1387-1400.doi: 10.1007/s11442-020-1788-6

• Research Articles •     Next Articles

Spatio-temporal variation in China’s climatic seasons from 1951 to 2017

MA Bin1(), ZHANG Bo1,*(), JIA Lige1,2   

  1. 1. College of Geography and Environmental Science, Northwest Normal University, Lanzhou 730070, China
    2. Tourism College, Inner Mongolia Normal University, Huhhot 010022, China
  • Received:2019-12-17 Accepted:2020-06-02 Online:2020-09-25 Published:2020-11-25
  • Contact: ZHANG Bo E-mail:ma-bin0937@163.com;zhangbo@nwnu.edu.cn
  • About author:Ma Bin (1990–), PhD, specialized in environmental change and resource assessment. E-mail: ma-bin0937@163.com
  • Supported by:
    National Natural Science Foundation of China(41561024);National Natural Science Foundation of China(31760241);National Natural Science Foundation of China(41801054)

Abstract:

In this paper, meteorological industry standard, daily mean temperature, and an improved multiple regression model are used to calculate China’s climatic seasons, not only to help understand their spatio-temporal distribution, but also to provide a reference for China’s climatic regionalization and crop production. It is found that the improved multiple regression model can accurately show the spatial distribution of climatic seasons. The main results are as follows. There are four climatic seasonal regions in China, namely, the perennial-winter, no-winter, no-summer and discernible regions, and their ranges basically remained stable from 1951 to 2017. The cumulative anomaly curve of the four climatic seasonal regions clarifies that the trend of China’s climatic seasonal regions turned in 1994, after which the area of the perennial-winter and no-summer regions narrowed and the no-winter and discernible regions expanded. The number of sites with significantly reduced winter duration is the largest, followed by the number of sites with increased summer duration, and the number of sites with large changes in spring and autumn is the least. Spring advances and autumn is postponed due to the shortened winter and lengthened summer durations. Sites with significant change in seasonal duration are mainly distributed in Northwest China, the Sichuan Basin, the Huanghe-Huaihe-Haihe (Huang-Huai-Hai) Plain, the Northeast China Plain, and the Southeast Coast.

Key words: climatic seasons, revised multiple regression model, spatio-temporal variation, China