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Bulletin of Botanical Research ›› 1995, Vol. 15 ›› Issue (4): 539-545.

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THE DIVISION OF ECOLOGICAL PHENOLOGICAL SEASONS AND DYNAMIC SUITABLE DATES PREDICTION FOR AGRICULTURE AND FOREST PRACTICES IN QINGHE FOREST REGION

Jiang Nai-zhun1, Zhu Bao-chun1, Duan Wen-biao1, Zheng Zhen2, Liu Yu-fu2   

  1. 1. Northeast Forestry University, Harbin 15004
    0. Heiiongjiang;
    2. Qinghe Forestry Bureau of Tonghe County, HeilongjiangProvince, 150913
  • Received:1995-03-01 Online:1995-12-15 Published:2016-06-14

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Abstract: Advantages of Sensonal division using phenolgical material were affirmed on thebasis of analysis of advantages and disadvantages of various methods of seasonaldivision, and the seasons were divided according to many year's phenologicalmaterial of QingHe forest region. The phenological calendar (natural calender) inQingHe Forest region was compiled. The imitative formula to make use of thephenological calendar to Predict suitable dates for agriculture and forest practiceswas put forward.

Key words: Ecological phenophase, Seasonal division, Dynamic prediction