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湖北咸丰长穗桑的生境与种群结构初探
陈中义;覃方贞   
1.湖北农学院园艺系;2.湖北农学院园艺系 湖北荆州434103;3.湖北荆州434103
摘要:
初步调查了湖北咸丰长穗桑种群 1 7株个体 ,主要结果表明 :咸丰长穗桑种群个体一般生长在人类频繁的干扰区内 ,遭到人们的大肆砍伐和破坏。其种群结构为倒金字塔形 ,缺乏幼苗和幼树 ,为衰老型种群 ;种群雌雄性比为 1 .83∶ 1 ,种群的生殖力和自我更新降低。必须大力加强对咸丰长穗桑的就地和迁地保护的研究和实施。
关键词:  长穗桑    生境    种群结构
DOI:
分类号:
Fund project:湖北省自然科学基金资助项目 ( 97J0 64)
  
Abstract:
Key words:  
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