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| 万峰湖水体浮游植物调查及富营养化评价 |
| Phytoplankton Investigation and Eutrophication Evaluation of Wanfeng Reservoir |
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| DOI： |
| 中文关键词: 浮游植物 富营养化 典范对应分析 万峰湖 |
| 英文关键词: Phytoplankton Eutrophication Canonical correspondence analysis Wanfeng Reservoir |
| 基金项目:贵州省水利厅科技基金资助项目（KT201405）；贵阳市科技局社会发展与民生科技计划基金资助项目(筑科合同［2011103］63号) |
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| 中文摘要: |
| 通过2016年枯水期和丰水期对万峰湖水库浮游植物及水质理化指标采样分析，并应用综合营养状态指数对其水质营养状态进行评价。结果表明，万峰湖枯水期主要以硅藻为主，丰水期以绿藻和甲藻占优势；水体水质处于中营养化状态。相关性分析表明，浮游植物丰度在枯水期与各理化指标相关性不显著，在丰水期与DO、TP呈正相关，与IMn、Chla呈显著正相关。典范对应分析（CCA）表明，TN、SD和pH值是影响该水域浮游植物分布格局的重要因子，且CCA排序图较好显示了浮游植物分布和环境因子之间的关系。 |
| 英文摘要: |
| The phytoplankton and physical and chemical index in Wanfeng Reservoir were investigated and analyzed in dry season and wet season in 2016, and comprehensive nutrition state index was used to evaluate the nutritional status of Wanfeng Reservoir. The results showed that the diatoms were the main species in dry season, while the green alga and the dinoflagellates were the main species in wet season. The water quality was mainly in mesotrophic state. Correlation analysis showed that the phytoplankton abundance had no significant correlation with the physical and chemical index in dry season, but in wet season, it had positive correlation with DO and TP, and significant positive correlation with IMn and Chla. Canonical correspondence analysis （CCA）showed that total nitrogen, transparency and pH were the important factors affecting the phytoplankton distribution pattern, the CCA ordination plots could well display the phytoplankton distribution and its relationship with the environmental factors. |
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