生态学杂志2013，Vol.32Issue(4)：813-820,8.
黑河中游湿地典型植物群落特征与物种多样性
Commnnity characteristics and species diversity of wetland plants in middle reaches of Heihe River, Northwest China
摘要
Abstract
By using the methods of botany and phytogeography, in combining with field investigation , this paper studied the wetland flora composition, geographical elements, ecological characteristics , and species diversity in the middle reaches of Heihe River, Northwest China. A total of 84 plant species were recorded, belonging to 70 genera and 32 families. The species of Composi-tae and Gramineae were dominant, occupying 29. 8% of the total. The geographic elements of the flora were of multiplicity, most of which embodied the feature of temperate zone. Herbs had the numerical advantage, and perennial herbs were the main component. By using two-way indicator species analysis ( TWINSPAN) , the vegetation in 42 sampling plots could be classified into 10 communities. The species diversity indices of the communities were relatively low, but had large differences among each other. According to the importance value, the Margalef richness index (Rm) ranged from 0. 344 to 1. 202, Simpson diversity index (D) was between 0 and 0. 840, Shannon diversity index (H) ranged from 0 to 1.999, and Pielou evenness index (J) was within the range of 0.712-1.0, indicating that the structure of the wetland plant communities in the middle reaches of Heihe River was relatively simple.关键词
湿地/植物区系/群落特征/物种多样性/黑河中游Key words
wetland/ flora/ community characteristics/ species diversity/ middle reaches of Heihe River分类
农业科技引用本文复制引用
赵海莉,赵锐锋,张丽华,姜朋辉,金建玲..黑河中游湿地典型植物群落特征与物种多样性[J].生态学杂志,2013,32(4):813-820,8.基金项目
国家自然科学基金项目(41261047和41201196)、教育部博士点基金项目(20106203120004)和西北师范大学青年教师科研能力提升计划骨干项目(NWNU-LKQN-11-11)资助. （41261047和41201196）
