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dc.contributor.author苏玉萍
dc.contributor.author李艳芳
dc.contributor.author钟厚璋
dc.contributor.author林慧
dc.contributor.author汪婷
dc.contributor.author游雪静
dc.date.accessioned2016-05-17T03:00:28Z
dc.date.available2016-05-17T03:00:28Z
dc.date.issued2012
dc.identifier.citation环境科学学报,2012,(2):87-94
dc.identifier.issn0253-2468
dc.identifier.otherHJXX201202015
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/108182
dc.description.abstract采用正交试验考察了温度、光照、营养盐和物理扰动4个因素对山仔水库冬季沉积物中蓝藻复苏的影响,每个因素设置两个水平,培养周期为6d,并以蓝藻复苏量为考察指标.结果表明,温度和光照为蓝藻复苏的主要影响因子,上覆水体的营养盐、物理扰动对沉积物中蓝藻门复苏的影响作用不显著,不同的蓝藻种属对温度和光照条件的响应程度不完全一致,蓝藻门微囊藻属(MICrOCySTIS)对温度和光照的复苏响应显著,颤藻属(OSCIllATOrIA)仅对温度的复苏响应显著.同时,通过设置6.0~16.0℃之间6个温度梯度及50和2000lX两个光照梯度,进行了沉积物柱状样复苏模拟实验.结果显示,山仔水库冬季沉积物微囊藻属和颤藻属在10℃左右开始复苏,微囊藻属对光的敏感性使其更容易处于优势地位.
dc.description.abstractThe effects of four environmental factors,including temperature,light,nutrient and physical disturbance,on the cyanobacteria recruitment from the winter sediment in the eutrophic Shanzai Reservoir were investigated using an orthogonal experiment.Two levels were designed for each factor and the experiments lasted for six days.The results showed that temperature and light were the most important for the recruitment of Microcystis and Oscillatoria.Increasing temperature would promote the recruitment of Microcystis and Oscillatoria which would make the cyanobacteria to dominate.The effects of the overlying water nutrient status and the physical disturbance on the recruitment of Microcystis and Oscillatoria from sediments were not obvious.Based on the results,different temperatures and light intensities were designed in the simulation experiment.The incubation temperatures were increased from 6.0 to 16.0 ℃ with six levels while each temperature level was kept for four days under 2000 and 50 lx light intensities,respectively.Recruitment was calculated by the diminution of benthic cyanobacteria abundance,and moreover,by the increase of cyanobacteria abundance in the water column.It is shown that the recruitment of Microcystis and Oscillatoria started at about 10 ℃.It was also demonstrated that the migration of Microcystis from the sediments was more pronounced at higher light intensity(2000 lx) than in dark(50 lx) treatments.
dc.description.sponsorship国家自然科学基金项目(No.41101060);福建省自然科学基金(No.2010J01250);福建省教育厅科学研究基金(No.JA10085);厦门大学近海与海洋环境国家重点实验室青年学者访问基金项目(No.MELRS1103)----
dc.language.isozh_CN
dc.subject沉积物
dc.subject微囊藻属
dc.subject颤藻属
dc.subject复苏
dc.subject温度
dc.subject光照
dc.subjectsediment
dc.subjectMicrocystis
dc.subjectOscillatoria
dc.subjectrecruitment
dc.subjecttemperature
dc.subjectlight
dc.title山仔水库沉积物蓝藻复苏试验研究
dc.title.alternativeRecruitment of cyanobacteria from sediment of the Shanzai Reservoir
dc.typeArticle


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