武汉东湖水生植物区系四十年间的变化与分析

CHANGES OF FLORISTIC COMPOSITION OF AQUATIC PLANTS IN A SHALLOW,EUTROPHIC CHINESE LAKE (DONGHU LAKE)FROM 1954 TO 1994

本文根据作者近年的研究结果，并结合前人的有关研究资料，对东湖四十年间（1954─1994）水生植物区系组成变化进行了讨论。文中分析了东湖水生植物区系组成、东湖水生植物在中国与世界水生植物区系中的位置、东湖水生植物种属的分布区类型、单种属和寡种属的地理分布格局、东湖水生植物区系的牲质、东湖与10个湖泊水生植物种属相似性的分析。最后对东湖水生植物分类群及种类变化进行了探讨。

Based on the results obtained from field test through two years and some relevant materials gotten by the others, the changes of flora of aquatic plants in Denghu Lake in the past forty years are discussed. The problems about aquatic plants in Denghu Lake, such as the position of the flora in China and the World, the areal-types of species and that of genera of the aquatic plants in Donghu Lake, the distributed patterns of the mono-type and oligoro-types genera, the characteristics of the Donghu Lake and those in other ten lakes. The reasons for these changes during the years 1954-1994 are also studied.