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Journal of Agriculture ›› 2023, Vol. 13 ›› Issue (5): 89-95.doi: 10.11923/j.issn.2095-4050.cjas2022-0047

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Effects of Climate Warming on Phenological Phase of Albizia julibrissin in Linfen

REN Yuhuan1(), YAO Chuang1, ZHAO Haiyan1, FAN Zhixuan1, LIU Jiqin2, LI Jingjing3   

  1. 1Shanxi Climate Center, Taiyuan 030000, Shanxi, China
    2Jixian County Meteorological Bureau, Linfen 042200, Shanxi, China
    3Changzhi Meteorological Bureau, Changzhi 046000, Shanxi, China
  • Received:2022-05-07 Revised:2023-01-10 Online:2023-05-20 Published:2023-05-16

Abstract:

To reveal the influence of climate warming on the phenological phase of typical urban woody plants in loess plateau, the effects of climate factors such as temperature and accumulated temperature on phenological phase of Albizia julibrissin in Linfen were analyzed by linear regression, wavelet analysis and correlation analysis. The results showed that the annual average temperature in Linfen showed an increasing trend under the background of global warming, with an increase of 2.9℃ from 1983 to 2021. The annual average precipitation fluctuated with the interval of 6 years and 15 years, respectively. Spring phenological phase was earlier and autumn phenological phase had no obvious changing trend, resulting in increased growth season. The temperature and accumulated temperature were very significantly correlated with first leaf unfolding and first flowering, and were significantly correlated with fruit maturing. The first leaf coloration and the end of leaf fall were not sensitive to meteorological conditions, and were affected by the date of fruit ripening.

Key words: phenological phase, Albizia julibrissin, climate warming, Linfen, temperature, precipitation, sunshine duration