湖北农业科学 ›› 2021, Vol. 60 ›› Issue (11): 66-70.doi: 10.14088/j.cnki.issn0439-8114.2021.11.014

• 资源·环境 • 上一篇    下一篇

麋鹿活动对石首天鹅洲湿地种子库的影响

严莉1, 程旭1, 袁龙义1, 薛兴华2   

  1. 1.长江大学园艺园林学院,湖北 荆州 434025;
    2.湖北民族学院生命科学学院,湖北 恩施 445000
  • 收稿日期:2020-06-02 出版日期:2021-06-10 发布日期:2021-07-15
  • 通讯作者: 袁龙义(1971-), 湖北公安人,副教授,主要从事植物学和湿地生态研究,(电子信箱)yly35@qq.com。
  • 作者简介:严 莉(1996-),女,湖北随州人,在读硕士研究生,研究方向为植物生态学研究,(电话)18163621395(电子信箱)370040907@qq.com。
  • 基金资助:
    国家自然科学基金项目(31170400; 31460132)

Effect of milu deer activity on seed bank in the Swan island wetland in Shishou city

YAN Li1, CHENG Xu1, YUAN Long-yi1, XUE Xing-hua2   

  1. 1. College of Horticulture and Landscape Architecure,Yangtze University,Jingzhou 434025,Hubei,China;
    2. College of Biological Science and Technology,Hubei Unversity for Nationalities,Enshi 445000,Hubei,China
  • Received:2020-06-02 Online:2021-06-10 Published:2021-07-15

摘要: 为研究麋鹿(Elaphurus davidianus)活动(践踏和啃食)对石首天鹅洲湿地种子库的影响,根据麋鹿种群活动的干扰强度选择A(强)、B(中)、C(弱)3个位点,开展种子库萌发试验和地上植被调查。结果发现,种子库共计萌发物种18科39属41种,以一年生植物为主(53.7%);麋鹿干扰强度对种子库组成和种子密度的影响极显著(P<0.01),种子库物种组成和种子密度由高到低依次为B、C、A;地上植被Shannon-Wiener多样性指数和Margarlef丰富度指数变化特征一致,均随着干扰强度的降低出现极显著下降趋势,表明干扰增加了地上植被的种类和数量。种子库与地上植被的相似性水平偏低,地上植被中麋鹿喜食物种减少,大量麋鹿厌食物种增加。

关键词: 麋鹿(Elaphurus davidianus), 种子库, 干扰, 栖息地, 天鹅洲

Abstract: In order to study the effect of Milu deer (Elaphurus davidianus) activity on the seed bank in the Swan island wetland in Shishou county, seed bank germination experiment and vegetation investigation were carried out on the basis of the strong and weak selection of three sites (A site, B site and C site) by the intensity of interference. The results showed that there were 41 species, 18 families, 39 genera, and mainly annual plants (53.7%). The interference intensity of Milu deer had a significant effect on seed bank in the Swan island wetland in Shishou county (P<0.05), and the order of the interference in the seed bank species was B>C>A. The variation characteristics of Shannon-Wiener diversity index and Margarlef richness index of above ground vegetation were the same, and both showed an extremely significant downward trend with the decrease of disturbance intensity, indicating that disturbance increased the species and quantity of above ground vegetation. The similarity level between seed bank and above ground vegetation was low, the number of Milu eaters in above ground vegetation decreased, and a large number of Milu anorexia species increased.

Key words: MiLu deer (Elaphurus davidianus), seed bank, interference, habitat, Swan island wetland

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