| 茜坑水库浮游植物时空分布及水质风险评价 |
| Spatial-temporal Distribution of Phytoplankton and Safety Assessment of Water Quality in Xikeng Reservoir |
| 投稿时间：2011-12-22 修订日期：2012-02-07 |
| DOI： |
| 中文关键词:浮游植物 时空分布 风险评价 茜坑水库 |
| 英文关键词:phytoplankton spatial-temporal distribution safety assessment Xikeng Reservoir |
| 基金项目: 深圳市水务局科研项目-深圳市水务局饮用水源水库有毒蓝藻监测(0832-SFCX10SZC050);茜坑水库蓝藻监测项目-茜坑水库蓝藻监测 |
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| 中文摘要: |
| 浮游植物是判断水体富营养化程度的关键指标之一,藻类水华中有害蓝藻释放的蓝藻毒素会危害人类健康,对饮用水的安全构成威胁。2010年4月至2011年3月,按月对广东省深圳市茜坑水库的浮游植物群落进行了调查。结果表明,茜坑水库共采集到浮游植物7门、66属、127种,种类组成以绿藻(54%)和硅藻(25%)为主,水库属绿藻-硅藻型水体;浮游植物细胞密度年均值为1.10×107个/L,绿藻门、硅藻门、隐藻门和蓝藻门细胞密度所占比例较高;浮游植物多样性在茜坑水库各样点间不存在显著性差异(P>0.05),表明水体交换能力较强;结合3种水质评价方法,初步判断茜坑水库为轻污-中污型水体,并通过对潜在产毒蓝藻现存量的分析来评价水质安全存在的风险。7月的水质风险最大,应进行藻毒素测定。对理化因子的测定显示,水库总氮和总磷浓度均超过《GB3838-2002地表水环境质量标准》中Ⅱ类标准值。 |
| 英文摘要: |
| Phytoplankton is one of the key indices in evaluation the eutrophication of water body. Toxin released from harmful cyanobacterial could pollute the drinking water and endanger human health. In this study，phytoplankton community was investigated and analyzed from April，2010 to March, 2011 in Xikeng Reservoir of Shenzhen City，Guangdong Province. A total of 127 phytoplankton species，which belong to 66 genera and 7 Phylum and consisting of Chlorophyta(54%)and Bacillariophyceae (25%)were identified，Based on the results，Xikeng Reservoir could be classified as the green algae-diatoms reservoir; Annual average cells density of phytoplankton was1.10 x 107 cells/L and the cells density percentage of Chlorophyta，Bacillariophyta and Cyanophyta were very high; There was no significant difference(P>0.05)about phytoplankton diversity index of each sampling site in Xikeng Reservoir，which indicated the good water exchange ;The water quality in Xikeng Reservoir was light-middle pollution by three kinds of assessment methods. The potential toxic cyanobacteria were analyzed to evaluate the risk of water quality. The results showed that the risk of water quality in July was the highest and algal toxins should be tested. Physicochemical factors showed that TN and TP concentration had exceeded class II standard value inGB3838-2002〝environmental quality standard for surface water". |
| 陈春浩,张俊芳,马沛明,金可礼,李良庚,栾建国.2012.茜坑水库浮游植物时空分布及水质风险评价[J].水生态学杂志,33(2):32-38. |
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