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应用生态学报 ›› 1995, Vol. 6 ›› Issue (1): 34-38.

• 研究论文 • 上一篇    下一篇

羊草-杂类草草原火状况研究

周道玮1, 郑焕能2, 周以良2   

  1. 1. 东北师范大学国家草地生态工程实验室, 长春 130024;
    2. 东北林业大学森林资源与环境学院, 哈尔滨 150040
  • 收稿日期:1993-06-29 修回日期:1994-10-08 出版日期:1995-01-25 发布日期:1995-01-25
  • 基金资助:

    国家自然科学基金

Fire regime of Aneurolepidium chinense-herbage steppe

Zhou Daowei1, Zheng Huanneng2, Zhou Yiliang2   

  1. 1. National Laboratory of Grassland Ecological Engineeing, Northeast Normal University, Changchun130024;
    2. College of Forest Resource and Environment, Northeast Forestry University, Harbin 150040
  • Received:1993-06-29 Revised:1994-10-08 Online:1995-01-25 Published:1995-01-25

摘要: 研究了羊草-杂类草草原火状况,设计一种研究无树草原火周期的方法。结果表明,羊草-杂类草草原较为稳定的着火季节时间为每年的5月和10月。自然火周期为4年,人为火周期为25年。火强度足以彻底清除地上草本枯落物。草原牲畜粪便等大型可燃物是影响火烧迹地内部格局的主要因素。讨论了火烧产生的各种现象的生态学意义,定义了火成因子。

关键词: 火成因子, 羊草草原, 火状况, 密度因素, 垂直结构, 喀斯特山地, 幼苗更新

Abstract: In this paper, the fire regime of Aneurolepidium chinense-herbage steppe is studied and adevised method is used to study the fire cycle of treeless grassland.The results show thatgrassland fire often occurs in May and October, the natural fire cycle is 4 years, and theman-made one is 25 years.The herbaceous layer on grassland is burned by the fire.andthe burned dung of livestocks is the major factor affecting the internal pattern of burnedarea.The ecological implications of phenomena produced by burning are discussed and thefire-generated factors are definited.

Key words: Fire regime, Fire-generated factor, Aneurolepidium chinense grassland, karst mountain., vertical structure, density factor, seedling regeneration