摘要
红豆树是中国特有物种,多混生于阔叶林中,被世界自然保护联盟(IUCN)濒危物种红色名录列为近危物种,为国家Ⅱ级保护野生植物。采用样地法对湖北省宜昌市秭归县杨林桥镇杨林桥小学旁红豆树种群年龄结构、空间分布格局进行了调查。种群年龄结构、种群特定时间生命表和存活曲线研究结果均表明红豆树种群呈稳定型特征;空间分布指数法、负二项参数(k)法检验结果表明红豆树种群分布呈集群分布。对红豆树野生种群的保护提出了建议。
Ormosia hosiei is an endemic species in China,mostly mixed in broad-leaved forest.It is listed as near endangered species by the World Conservation Union(IUCN)red list,and is a national grade II protected plant.The age structure and spatial distribution pattern of Ormosia hosiei population near Yanglinqiao Primary School in Zigui County of Yichang City,Hubei Province were investigated by sample plot method.The findings of the population age structure,population life table for a special time and survival curve all showed that the population of Ormosia hosiei was stable type;the results of spatial distribution index method and negative binomial parameter(k)method showed that the distribution of Ormosia hosiei population was cluster distribution;Some suggestions for the protection of Ormosia hosiei were put forward.
作者
李杨
段翔
杨诗雨
葛继稳
Li Yang;Duan Xiang;Yang Shiyu;Ge Jiwen(Department of Bioscience and Technology,School of Environment Studies,China University of Geosciences(Wuhan),Wuhan 430074;Institute of Ecology and Environmential Sciences,China University of Geosciences(Wuhan),Hubei Key Laboratory of Wetland Evolution and Ecological Restoration,Wuhan 430074)
出处
《湖北林业科技》
2021年第1期6-9,共4页
Hubei Forestry Science and Technology
基金
湖北省第二次国家重点保护野生植物资源调查项目。
关键词
红豆树
年龄结构
存活曲线
种群空间分布格局
Ormosia hosiei
age structure
survival curve
population spatial distribution pattern
