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Bulletin of Botanical Research ›› 2021, Vol. 41 ›› Issue (1): 26-36.doi: 10.7525/j.issn.1673-5102.2021.01.004

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Response of Flowing Time to Temperature Changein Heilongjiang Province

Xin-Yu CHENG1,2, Zhi-Yuan YAN1, Meng-Qiao GUO1,2, Hai-Jun XU3, Bin TONG1, Hong-Wei NI1,4()   

  1. 1.Institute of Natural Resources and Ecology,Heilongjiang Academy of Sciences,Harbin 150040
    2.College of Life Sciences,Shangrao Normal University,Shangrao 334001
    3.Daqing Branch of Heilongjiang Academy of Sciences,Daqing 163319
    4.Heilongjiang Academy of Forestry,Harbin 150081
  • Received:2020-01-14 Online:2021-01-20 Published:2021-01-05
  • Contact: Hong-Wei NI E-mail:nihongwei2000@163.com
  • About author:CHENG Xin-Yu(1985—),male,Ph.D.,lecturer, mainly engaged in plant systematics and anatomy.
  • Supported by:
    Heilongjiang Province Science and Technology Plan, Science and Technology Cooperation Project of Heilongjiang Academy of Sciences(YS18B17);President Fund Project of Heilongjiang Academy of Sciences(YZ2019ZR01)


In order to clarify the responding tendency of florescence to temperature change in Heilongjiang Province, the relationship between plant florescence change and the annual mean temperature change in spring, summer, autumn in the present year and the last year were analyzed according to 188 herbarium plant species(contain infra-species taxa), which were collected from Heilongjiang Province in period of 1951-2007. The results showed that was a significant correlation(P<0.05) between florescence of more than 42% plants and temperature in Heilongjiang Province. In these plants, the relative collection time index of more than 25% species had significant positive correlation with annual mean temperatures of current, last year and season(P<0.05), and most of these were herbs. The relative collection time index of the rest of herbs and woody plants had significant negative correlation with annual mean temperatures of current, last year and season(P<0.05), for example, when the annual average temperature in spring increased to 1℃, the flowering period of woody plants precocious flowered 12.65% on average. Plant florescence was 4.47%, 7.08%, 3.87%, 5.84% and 6.73% ahead of schedule respectively in Heilongjiang Province if the annual average temperature increased to 1℃ in spring, summer, autumn of the current year and last year. The florescence response to temperature changes was relatively obvious in short florescence plants. The florescence response to the change of the annual mean temperature in summer was more sensitive than that in spring, autumn of the current year in Heilongjiang Province.

Key words: florescence, temperature, Heilongjiang Province

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