摘要
以25个5 m×5 m的样方为基础,研究了海石公园20 a无干扰的石灰岩山地灌丛植被情况.运用重要值、丰富度指数、均匀度指数和多样性指数分析了该区植物组成与多样性,并与云阳人工柏木林和缙云山草珊瑚群落对比.结果表明:在625 m2样地中有维管束植物78种,群落各层次的丰富度大小格局依次为灌木层,草本层,藤本植物;多样性大小格局依次为灌木层,草本层或等于藤本植物;均匀度大小格局依次为藤本植物,灌木层,草本层.相对于云阳人工柏木林和缙云山草珊瑚群落,本群落的多样性指数较高.
The species composition and diversity of plants on the Haishi Park limestone shrubland without anthropogenic disturbance for 20 years were studied based on data from 25 5 m×5 m plots. Important value index, richness index, species diversity index and evenness index were used to analyze the species composition and diversity of plants in the region and a comparison was made between the results of the study with the Cupressus funebris forest in Yunyang and the Sarcandra glabra communities in the Jinyun Mountains. A total of 78 species of vascular plants were found in the 625 m^2 plots. Richness index was in the order of shrub layer 〉 herb layer 〉 liana layer; species diversity index in the order of shrub layer〉herb layer ≥ liana layer and evenness index in the order of liana layer 〉 shrub layer 〉 herb layer. Species diversity index in Haishi Park was higher than that in C. funebris forest in Yunyang and S. glabra communities in the Jinyun Mountains.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第5期106-110,共5页
Journal of Southwest University(Natural Science Edition)
基金
国家星火计划项目(2006EA105025)
重庆市海石公园资助项目
关键词
重庆
中梁山
石灰岩
物种多样性
海石公园
灌丛
Chongqing
Zhongliang Mountains
limestone
species diversity
Haishi Park
shrubland
