中文摘要：

我们在 cyanobacterial 生物资源和它的主导的人口的形式调查了季节的变化(M。aeruginosa ) 并且他们与在 Chaohu 城市的水来源区域的环境因素的关联，从 2011 年 12 月的中国到 2012 年 10 月。结果证明属于门 Cyanophyta 的那种占据了浮游植物生物资源的最大的比例，并且在 Chaohu 城市的水来源区域的主导的人口是 M。aeruginosa。在到 2012 年 8 月的从三月的 cyanobacterial 生物资源的变化很好被适合到逻辑生长模型。cyanobacteria 的生长率在 6 月是最高的，并且 cyanobacteria 的生物资源在 8 月到达了最大值。从 2 月到 2012 年 3 月， M 的主要形式。aeruginosa 是单个房间的形式；M。aeruginosa 殖民地开始从 4 月出现，并且花蕾在 5 月出现在水表面上。殖民地的最大的直径在 7 月被记录，然后逐渐地从 8 月减少了。M 的直径范围。aeruginosa 殖民地是 18.37237.77 m，并且大多数殖民地在范围是分布式的 20200 m，包括样品的 95.5% 全部的数字。温度和光合地活跃的放射可以是在 M 影响了年度变化的最重要的因素。aeruginosa 生物资源和形式。为 cyanobacterial 生长的合适的温度在 1530 的范围 ??? 搠灩灥楴祤 ? 瀠灥楴慤敳 ?????????????? 楳慴汧灩楴????????????????????? 桰獯桰敯潮灬特癵瑡 ? 挠牡潢祸楫慮敳 ??? 洠瑥潦浲湩吗？？

英文摘要：

We investigated seasonal variations in cyanobacterial biomass and the forms of its dominant population （M. aeruginosa） and their correlation with environmental factors in the water source area of Chaohu City, China from December 2011 to October 2012. The results show that species belonging to the phylum Cyanophyta occupied the maximum proportion of phytoplankton biomass, and that the dominant population in the water source area of Chaohu City was M. aeruginosa. The variation in cyanobacterial biomass from March to August 2012 was well fitted to the logistic growth model. The growth rate of cyanobacteria was the highest in June, and the biomass of cyanobacteria reached a maximum in August. From February to March 2012, the main form of M. aeruginosa was the single-cell form; M. aeruginosa colonies began to appear from April, and blooms appeared on the water surface in May. The maximum diameter of the colonies was recorded in July, and then gradually decreased from August. The diameter range ofM. aeruginosa colonies was 18.37-237.77μm, and most of the colonies were distributed in the range 20-200μm, comprising 95.5% of the total number of samples. Temperature and photosynthetically active radiation may be the most important factors that influenced the annual variation in M. aeruginosa biomass and forms. The suitable temperature for cyanobaeterial growth was in the range of 15-30℃. In natural water bodies, photosynthetically active radiation had a significant positive influence on the colonial diameter of M. aeruginosa （P〈0.01）.