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中国农学通报 ›› 2020, Vol. 36 ›› Issue (10): 39-46.doi: 10.11924/j.issn.1000-6850.casb19010093

• 林学 园艺 园林 • 上一篇    下一篇

武汉城市森林常见木本植物物候研究——以九峰国家森林公园为例

王晓荣1(), 庞宏东1, 胡文杰1, 牛红玉2, 郑京津1, 王瑞文1, 唐万鹏1()   

  1. (1)湖北省林业科学研究院,武汉 430075
    (2)华中师范大学生命科学学院,武汉 430079
  • 收稿日期:2019-01-17 修回日期:2019-04-08 出版日期:2020-04-05 发布日期:2020-03-19
  • 基金资助:
    湖北省自然基金项目“林分结构改变对马尾松林土壤碳通量时空格局的影响”(2017CFB694);湖北省林业科学研究院青年基金项目“九峰国家森林公园常见树种生长节律及物候观测研究”(2014YQNJJ04)

Phenology Research on the Common Ligneous Species in Wuhan Urban Forest: An Example of Jiufeng National Forest Park

Xiaorong Wang1(), Hongdong Pang1, Wenjie Hu1, Hongyu Niu2, Jingjin Zheng1, Ruiwen Wang1, Wanpeng Tang1()   

  1. (1)Hubei Academy of Forestry, Wuhan 430075
    (2)School of Life Sciences, Central China Normal University, Wuhan 430079
  • Received:2019-01-17 Revised:2019-04-08 Online:2020-04-05 Published:2020-03-19

摘要:

为研究武汉城市森林常见植物物候节律特征,以武汉九峰国家森林公园内的18种常见树种为观测对象,基于连续3年的物候观测数据开展主要树种物候特性研究,绘制树种物候图谱,并分析物候现象间的相关性。利用主成分分析法分析树种物候期与温度和降水等环境因子的关系,其中影响萌动期、展叶期、开花期和果实或种子成熟期的主要环境因子为≥5℃的积温、平均气温和累积降雨量,落叶期的主要环境因子为平均气温、平均降雨量及≥5℃的积温,且不同环境因子在不同物候期存在正反效应的差异。利用系统聚类分析的方法对萌动期、展叶期、开花期和果实或种子成熟期进行物候型聚类,初步确定萌发型3个、展叶型2个、开花型3个、果实成熟型3个,而且按照“萌动型—展叶型—开花型—果实成熟型”进行链接和归并,18种树种共划分出9个物候类型。本研究有助于了解武汉地区常见树种物候变化特征,为城市森林树种筛选、林木培育管理以及效益评价提供科学依据。

关键词: 木本植物, 物候, 物候图谱, 城市森林, 武汉

Abstract:

To explore the phenological characters of common ligneous species in Wuhan urban forest, based on the phenological observation data of 18 tree species for 3 consecutive years, the main phonological characters of tree species were studied, the phenological spectrum was drawn and the correlation between phonological phenomena was analyzed. The relationship between tree phenological phase and environmental factors such as temperature and precipitation was studied using principal component analysis. The major environmental impact factors for sprouting period, leaf-expansion period, flowering period and fruit maturation period were ≥5℃ temperature accumulation, average temperature and cumulative rainfall, and those for defoliation period were average temperature, average rainfall and ≥5℃ temperature accumulation. In addition, different environmental factors had different positive and negative effects in different phenological periods. Phenotypic cluster analysis was carried out on sprouting period, leaf-expansion period, flowering period and fruit maturation period, 3 types of sprouting period, 2 types of leaf-expansion period, 3 types of flowering period and 3 types of fruit maturation period were determined preliminarily. Moreover, different phenological types were connected and combined according to “sprouting type+ leaf-expansion type+ flowering type+ fruit maturation type”, 18 tree species were classified into 9 phonological types. The study is helpful to understand the phenological change characters of common tree species in Wuhan, and provides a scientific basis for the species selection, tree cultivation management and benefit evaluation of urban forest.

Key words: ligneous plants, phenology, phenological spectrum, urban forest, Wuhan

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