植物生态学报 ›› 2018, Vol. 42 ›› Issue (6): 663-671.doi: 10.17521/cjpe.2017.0242

• 研究论文 • 上一篇    下一篇

石林地质公园不同群落类型植物果实组成与种子散布特征

俞筱押1,2,李玉辉1,*(),杨光荣3   

  1. 1 云南师范大学旅游与地理科学学院, 昆明 650500
    2 黔南民族师范学院旅游与资源环境学院, 贵州都匀 558000
    3 石林风景名胜区管理局, 云南石林 652211
  • 收稿日期:2017-09-26 修回日期:2018-05-29 出版日期:2018-06-20 发布日期:2018-06-20
  • 通讯作者: 李玉辉 E-mail:jshe@pku.edu.cn
  • 基金资助:
    国家自然科学基金(41371514)

Fruit types and seed dispersal modes of plants in different communities in Shilin Geopark, Yunnan, China

YU Xiao-Ya1,2,LI Yu-Hui1,*(),YANG Guang-Rong3   

  1. 1 School of Tourism and Geography Science, Yunnan Normal University, Kunming 650500, China
    2 School of Tourism and Resource Environment, Qiannan Normal University for Nationalities, Duyun, Guizhou 558000, China;
    3 Administration of the Shilin National Park Management, Shilin, Yunnan 652211, China
  • Received:2017-09-26 Revised:2018-05-29 Online:2018-06-20 Published:2018-06-20
  • Contact: Yu-Hui LI E-mail:jshe@pku.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(41371514)

摘要:

喀斯特植物群落果实类型和种子散布特征的研究, 对于理解喀斯特植物群落更新与拓展特征, 进而揭示喀斯特石漠化地区恢复植被的自然扩展机制及制定植被恢复规划具有重要意义。该研究以石林地质公园不同群落类型为对象, 研究不同群落的果实类型谱与种子散布谱, 以揭示果实类型与种子散布方式对恢复植被的影响。采用石林地质公园不同群落各1 hm 2样地记名计数法调查的维管束物种名录, 依据Flora of China对物种果实的描述确定其果实类型; 根据文献、数据库以及果实、种子形态性状确定种子散布方式。结果表明: (1)石林地质公园282种维管束植物共16种果实类型(含孢子), 其中瘦果、蒴果、浆果和核果的物种比例均大于10%。木本植物、草本植物、藤本植物的优势果实类型分别为核果、瘦果和浆果。石林地质公园各群落的木本植物、草本植物和藤本植物的果实类型谱差异不显著。在原生林、次生林、灌丛、灌草丛和人工辅助云南松林不同群落中, 浆果和核果的物种比例减少, 瘦果、颖果和蒴果的物种比例增加。(2)石林地质公园植物种子以动物传播为主, 其次为风传播。在原生林、次生林、灌丛、灌草丛和人工辅助云南松林不同群落中, 风传播的物种比例增加了73%-87%, 动物传播(包括鸟类传播)减少了31%-36%。(3)物种的种子散布方式直接影响到植被恢复物种和恢复策略的选择。基于恢复目标, 选择自然传播能力强的乡土物种或地带性植被关键种, 辅以传播廊道, 有助于喀斯特的植被恢复。

关键词: 喀斯特植被, 植被恢复, 果实类型谱, 种子散布谱, 石漠化治理

Abstract:
Aims Fruit types and seed dispersal modes of plants play an important role in forest regeneration and colonization. Exploring characteristics of fruit types and dispersal modes in different plant communities could improve our understanding on the natural expansion mechanism of vegetation restoration, which is helpful for reducing karst rocky desertification. Our objective was to study the effects of fruit types and seed dispersal modes on vegetation restoration in Shilin Geopark, Yunnan, China.
Methods Based on the species list of different communities investigated in Shilin Geopark, the fruit type of species was determined based on Flora of China. The seed dispersal mode of each species was determined based on published literature, the Kew Seed Information Database (http://data.kew.org/sid/) and the fruit and seed morphological traits.
Important findings 1) In total 16 fruit types (include spore) were observed for the 282 vascular plant species in the communities in Shilin Geopark. Achenes (17.02%), capsules (16.67%), berries (14.18%) and drupes (12.41%) were the most common fruit types. The most abundant fruit types among woody species, herbaceous species and lianas were drupes (31.96%), achenes (25.17%) and berries (40.48%), respectively. The fruit type spectrums of woody plants, herbs and lianas in communities were not significantly different. From zonal forest, secondary forest, shrubland, shrub tussock to Pinus yunnanensis plantation forest, the proportions of berries and drupes species decreased significantly, and those of achenes, caryopsis and capsules species increased. 2) The dominant seed dispersal modes of different plant communities in Shilin Geopark were zoochory (47.87%) and anemochorous (33.69%). The seed dispersal mode spectrum of woody plants, herbs and lianas in the communities of Shilin Geopark were not significantly different from each other. From zonal forest, secondary forest, shrubland, shrub tussock to Pinus yunnanensis plantation forest, the proportion of zoochory species reduced by 31%-36%, while that of anemochory species increased by 73%-87%. 3) The seed dispersal modes affected species selection and vegetation restoration strategy directly. To restore vegetation quickly and effectively, the species which have natural spread ability should be selected for afforestation plan, and species dispersal corridors are needed.

Key words: karst vegetation, vegetation restoration, fruit type spectrum, seed dispersal mode spectrum, control of karst rocky desertification