北京植物物候的季节动态特征——以北京植物园为例
|
|
邢小艺,郝培尧,李冠衡,李慧,董丽
|
Seasonal dynamic of plant phenophases in Beijing—A case study in Beijing Botanical Garden
|
|
XING Xiao-Yi,HAO Pei-Yao,LI Guan-Heng,LI Hui,DONG Li
|
|
表2 30年前后物候季节划分及相关特征差异
|
Table 2 The differences in division of phenological seasons and in the associated characteristics between 2017 and 30 years ago
|
|
季节
Season | 物候季节划分(候)
Division of phenological seasons (Pentad) | 持续候期/候
Duration pentads | 物候期累积频率(%)
Cumulative frequency of phenophases (%) | 物候期候均发生频率(%)
Pentad-average cumulative frequency of phenophases (%) | 平均日均温(℃)
Average mean daily
temperature (℃) | | 2017 | 1980’s | 2017 | 1980’s | 2017 | 1980’s | 2017 | 1980’s | 2017 | 1980’s | | 春季 Spring | 6-19 | 7-20 | 14 | 14 | 54.03 | 44.00 | 3.86 | 3.14 | 13.6 | 11.3 | | 夏季 Summer | 20-45 | 21-42 | 26 | 22 | 12.95 | 12.00 | 0.50 | 0.55 | 25.2 | 24.1 | | 秋季 Autumn | 46-59 | 43-58 | 14 | 16 | 27.19 | 38.00 | 1.94 | 2.39 | 9.4 | 12.1 |
|
|
|