不同干扰程度对翅果油树种群结构与动态的影响  

The Influence of Elaeagnus Mollis′ Population Structure and Dynamic State on Varying Disturbed Degrees

作　　者：卢鹏[1] 徐燕[1] 毕润成[1] 

机构地区：[1]山西师范大学生命科学学院,山西临汾041004

出　　处：《山西师范大学学报（自然科学版）》2011年第3期103-108,共6页Journal of Shanxi Normal University(Natural Science Edition)

基　　金：国家自然科学资助项目(30671061);山西省自然科学资助项目(20041101)

摘　　要：翅果油树(Elaeagnus mollisDiels)是国家Ⅱ级保护植物,处于濒危状态,由于缺乏不同干扰对种群结构与动态影响的研究,限制了对该种的全面认识和有效保护.本文对山西三个集结地(翼城,平陆,乡宁)的翅果油树种群作了调查研究,对比分析了三个样地的翅果油树种群的年龄结构,编制了翅果油树种群的静态时间生命表,绘制了种群的存活曲线、死亡率曲线和消失率曲线.结果表明:不同干扰程度的翅果油树种群,在种群结构、存活曲线及死亡率和消失率方面都有较大差别.其中,受人类干扰较少的平陆样地,翅果油树种群表现为大龄个体多,年龄结构较为稳定.Elaeagnus mollis, which is among the second class national protected plants, is highly endangered. It could not be un- derstanded comprehensively.and protected effectively due to a lack of the research of Elaea gnus mollis＇ population structure and dy- namic influence on varying disturbed degrees. This paper makes an investigation on Elaeagnus mollis in three area of Shanxi Yicheng, Xiangning, Pinglu, contrasts and analyses these age structure, works out the statical life table and draws up these survival curves, mortality curves and the curves of the rate of eradication. The results indicated that there are many big differences in these population structure, survival curves, survival rate, mortality rate and the curve of mortality rate. Besides, in the plot Pinglu less disturbed by human, there are more older Elaeagnus mollis and they have a stable age structure.

关 键 词：翅果油树 干扰 种群 生命表 存活曲线 

分 类 号：Q945.79[生物学—植物学]