湖北保康野生蜡梅自然群落调查与研究

The Investigation and Study of Natural Communities on Wild Chimonanthus Praecox in Hubei Baokang

通过对保康县8个野生蜡梅群落样地进行调查研究。结果表明:群落以蜡梅为主要建群种,蜡梅在多度(88)、重要值(29.82)和频度(100%)方面均为蜡梅群落灌木层中最高者,蜡梅在群落中处于绝对优势的地位。刺滩沟蜡梅群落的丰富度指数(28)、Simpson指数(0.84)和Shannon-Wiener指数(1.06)为8个群落最大者。蜡梅群落灌木类植物物种的Pielou均匀度指数与多样性指数总体表现出较为相似的特征,即物种多样性高,均匀度也较高。物种丰富度、多样性、均匀度均表现出相似的变化趋势。

Through the study on 8 wild Chimonanthus praecoax populations in Baokang County, this paper found out that the abundance（88）, importance value（28. 92） and frequency（100%） of Chimonanthus praecox were the highest among all species of basekage. Chimonanthus praecox held the superiority position in all populations. The species richness（28）, Simpson＇s index（0. 84） and Shannon-Winner＇s diversity index（1.06） of the Citangou wild Chimonanthus praecox population are higher than those of the other populations. The evenness index and the diversity index of the Chirnonanthus praecox populations shrubs species were showed similar characteristics as a whole.