环境因子对福建省山仔水库水华微囊藻生长的影响  

The influence of the environmental factors on the growth of Microcystis flos-aquae in Shanzi Reservoir of Fujian Province

作　　者：苏玉萍[1] 郑达贤[2] 陈娜蓉[1] 王家乐[1] 林婉珍[1] 

机构地区：[1]福建师范大学化学与材料学院环境科学系,福建福州350007 [2]福建师范大学地理科学学院,福建福州350007

出　　处：《植物资源与环境学报》2005年第3期42-46,共5页Journal of Plant Resources and Environment

基　　金：福建省自然科学基金资助项目(D0310015);福建省教育厅A类(JA03029)资助项目

摘　　要：研究光照、温度和磷酸盐对福建省山仔水库水华微囊藻〔Microcystisflosaquae(Wittr.)Kirchn.〕SZ200307生长的影响。结果表明:随着光照强度的增加,水华微囊藻SZ200307的生长加快,但过强的光照强度反而抑制其生长,最适光照强度为4000～4500lx;20℃～30℃,水华微囊藻SZ200307有较高的比增殖率,30℃最适合其生长;当磷的浓度较低而其他条件不变时,添加外源性磷,水华微囊藻SZ200307增长迅速;当磷浓度高于0.258mg·L-1,磷元素不再是其增长的限制性因子,温度、光照等其他环境因子将限制其增殖。The influences of light intensity, temperature and phosphate on the growth of Microcystis flosaquae （Wittr.） Kirchn. SZ200307 in the culture medium and in the water of $hanzi Reservoir in Fujian Province were studied. The results indicated that with the increasing of ligth intensity, M. flos-aquae SZ200307 began growing faster. When the light intensity was high enough, the growing was inhibited.M. flos-aquae had high ratio of multiplication between 20℃ and 30℃. The results showed that light intensity 4 000 - 4 500 lx and temperature 30℃ were the optimum condition for the growth of M. flosaquae SZ200307. Increasing the external phosphorus had a great effect on the growth of M. flos-aquae SZ200307 if the concentration of phosphorus was low. It is not phosphorus but light intensity or temperature etc. may become the dominant factors on the growth of M. flos-aquae when the concentration of phosphorus is higher than 0. 258 mg·L^-1.

关 键 词：环境因子 水华微囊藻 富营养化 水库 

分 类 号：X171.5[环境科学与工程—环境科学] Q949.221[生物学—植物学]