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生态学杂志 ›› 2001, Vol. ›› Issue (4): 24-27.

• 研究报告 • 上一篇    下一篇

缙云山森林土壤速效P的分布特征及其与物种多样性的关系研究

杨万勤, 钟章成, 陶建平   

  1. 西南师范大学生命科学学院, 重庆400715
  • 收稿日期:1999-11-01 修回日期:2000-03-06 出版日期:2001-08-10
  • 基金资助:
    国家自然科学基金重点项目的子课题(39330050)资助.

The Distribution of Soil Available Phosphorus and its Correlations with Plant Species Diversity in the Forest of MtJinyun

Yang Wanqin, Zhong Zhangcheng, Tao Jianping   

  1. College of Life Science, Southwest China Normal University, Chongqing 400715
  • Received:1999-11-01 Revised:2000-03-06 Online:2001-08-10

关键词: 种子萌发, 萌发率, 发芽指数, 胚根生长, 胚芽生长, 差巴嘎蒿

Abstract: Distribution characteristics of soil phosphorus availability and its correlations with plant species diversity in the forest ecosystem of Mt.Jinyun are studied in this paper.The results are as follows:①Available P of soil profile in different communities has an evident gradient,i.e.,A(humus layer)>B(deposition layer)>C(parent material layer).②Except for shrub-grassland,soil available P content orderly increases along the successional directions,i.e.,Pinus massoniana forest<P.massonia-Symplocos setchuensis mixed forest<evergreen broadleaved forest.③Different degree's of correlations exist between soil available P and plant species diversity.The correlation between tree diversity and available P content of A and B layers is very significant.

Key words: seed germination, germination rate, germination index, radicle growth, plumule growth, Artemisia halodendron.

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