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夏新建,邓渠成,韦锋,许桂苹,王晓飞,邓超冰.龙江河春季浮游植物群落特征及其富营养化评价[J].广西科学,2016,23(2):150-155. [点击复制]
- XIA Xinjian,DENG Qucheng,WEI Feng,XU Guiping,WANG Xiaofei,DENG Chaobing.Phytoplankton Community Structure and Eutrophication of Longjiang River in Spring[J].Guangxi Sciences,2016,23(2):150-155. [点击复制]
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| 龙江河春季浮游植物群落特征及其富营养化评价 |
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夏新建1, 邓渠成2, 韦锋1, 许桂苹1, 王晓飞1,3, 邓超冰1
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| (1.广西壮族自治区环境监测中心站, 广西南宁 530028;2.澳大利亚国立大学克劳福德公共政策学院, 澳大利亚堪培拉2600;3.广西大学轻工与食品工程学院, 广西南宁 530004) |
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| 摘要: |
| [目的]针对2013年春季广西龙江河河段拉浪水库上游爆发的大规模大薸和水葫芦现象,对龙江河流域的浮游植物进行调查。[方法]运用生物多样性指数和营养状态指数对龙江河的营养状态进行评价。[结果]本次调查浮游植物共镜检到7门42属56种(变种),其中绿藻门和硅藻门的种类较多,分别占镜检种类数的37.50%和25.00%。龙江河流域中的拟多甲藻丰度水平最高,其细胞密度为0.12×106~5.13×106 cells·L-1,其中糯米滩水电站的甲藻丰度占比高达91.76%,发生较严重的甲藻水华。龙江河流域的浮游植物多样性指数(H')为0.68~2.99,均匀度指数(J)为0.18~0.48,营养状态指数为42.10~53.60。[结论]调查期间龙江河处于中营养和轻度富营养化水平。 |
| 关键词: 龙江河 富营养化 浮游植物 营养状态 |
| DOI：10.13656/j.cnki.gxkx.20160512.002 |
| 投稿时间：2016-01-30修订日期：2016-03-31 |
| 基金项目:广西自然科学基金项目"西江流域水环境重金属污染机制与调控"(2013GXNSFEA053001)资助。 |
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| Phytoplankton Community Structure and Eutrophication of Longjiang River in Spring |
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XIA Xinjian1, DENG Qucheng2, WEI Feng1, XU Guiping1, WANG Xiaofei1,3, DENG Chaobing1
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| (1.Guangxi Prefecture Environmental Monitoring Centre, Nanning, Guangxi, 530028, China;2.Crawford School of Public Policy, Australian National University, Canberra, 2600, Australia;3.Institute of Light Industry and Food Engineering, Guangxi University, Nanning, Guangxi, 530004, China) |
| Abstract: |
| [Objective] To investigating the reason of overgrowth of Pistia stratiotes and Eichhornia crassipes in the spring of 2013, phytoplanktons were investigated in Lalang reser-voir which located in upstream of Longjiang River.[Methods] Diversity indices (Shannon-Wiener diversity index and Pielou)and trophic state index were used to assess the trophic state of the Longjiang River.[Results] Totally, 7phyla, 42 genera and 56 species of phytoplankton were identified, among them Bacillariophyta and Chlorophyta were the dominant taxa, and their relative abundances were 37.50% and 25.00%, respectively.However, the most abundant taxa was Peridiniopsis Lemmermann, and its cell density ranged from 0.12×106 to 5.13×106 cells·L-1.For example, the relative abundance of Pyrrophyta in Nuomitan station was 91.76%, indicating the dinoflagellate bloom.The biodiversity analysis showed that Shannon-Wiener diversity index ranged from 0.68 to 2.99, Pielou from 0.18 to 0.48, and the integrated trophic state index from 42.10 to 53.60.[Conclusion] In summary, the results indicated that the water quality of Longjiang River was classified as mesotrophic and eutrophic level. |
| Key words: Longjiang River eutrophication phytoplankton trophic state |
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