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当前位置: 首页 > 文章 > 民勤北部天然柠条群落结构特征及其优势种群动态研究 甘肃农业大学学报 2008,43 (6) 119-124+132
Position: Home > Articles > The structural characteristics of natural community of Caragana korshinski and its population dynamics of the dominant species in northern Minqin Journal of Gansu Agricultural University 2008,43 (6) 119-124+132

民勤北部天然柠条群落结构特征及其优势种群动态研究

作  者：
刘晓春;洪绂增;纪永福;贺访印;魏怀东;李亚;周兰萍
单  位：
甘肃省治沙研究所;甘肃农业大学草业学院
关键词：
柠条;群落结构;物种多样性;种群动态;民勤
摘  要：
在野外调查的基础上,对民勤北部天然柠条群落结构特征和柠条种群动态进行了研究,结果表明:民勤北部天然柠条群落只有9种植物种,植物种类少,结构单一;各物种个体数量少,植株矮小,主要呈现集群分布格局;群落物种丰富度和多样性指数低.通过对柠条年龄结构图和种群静态生命曲线分析发现,柠条种群幼龄植株较多,群落处于进一步扩大或者稳定发展的趋势.
译  名：
The structural characteristics of natural community of Caragana korshinski and its population dynamics of the dominant species in northern Minqin
作  者：
LIU Xiao-chun1,HONG Fu-zeng1,JI Yong-fu2,HE Fang-yin2,WEI Huai-dong2,LI-ya2,ZHOU Lan-ping2(1.College of Prataculture,Gansu Agricultural University,Lanzhou 730070,China;2.Gansu Desert Control Research Institute,Wuwei 733000,China)
关键词：
Caragana korshinski;community structure;species diversity;population dynamics;Minqin County
摘  要：
Based on the field investigation,the structural characteristics and its population dynamics of the dominant species of natural Caragana korshinski community in the northern Minqin were studied.The results showed as follows:there were nine species in natural Caragana korshinski community in the northern Minqin,and this indicated that the community was composed of fewer plant species and had a simple structure.Moreover,each species had fewer individuals and short bodies,and the distribution pattern of Caragana korshinski belonged to clumped type.Both the species richness index and diversity index of the community were low.According to its age structure and life curve,Caragana korshinski population were mainly made up by young individuals yet,and tended to be increasing or developing stably.

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