| 模拟水动力对湖泊生物群落演替的实验 |
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| 引用本文： | 陈伟民,陈宇炜,秦伯强,高锡芸,高光,季江,许秋瑾.模拟水动力对湖泊生物群落演替的实验[J].湖泊科学,2000,12(4):343-352. |
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| 作者姓名： | 陈伟民 陈宇炜 秦伯强 高锡芸 高光 季江 许秋瑾 |
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| 作者单位： | 中国科学院南京地理与湖泊研究所，南京 210008 |
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| 基金项目： | KZ -T - 0 4- 0 4课题，KZ95 1-B1- 2 0 5课题，KZ95 2 -S1- 2 2 0课题 |
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| 摘 要： | 从静止状况到小水流，大水流的模拟水动力实验表明，水动力对湖泊生物群落演替重要作用，藻类种类数以大小流时最高，其生物量也最高，这与ＮＯ＾－／ＴＤＮ比值相一致，由静止状态到大小流状态，藻类数量呈现递增趋势，这与相应的ＴＤＮ／ＴＮ、ＴＤＰ／ＴＰ呈递减趋势相呼应，浮游动力物种类、数量的变化较之浮模特更明显，尤其是枝角类的变化更大，动力作用通过增加水体中悬浮质、降低透明度、改变水下光照条件及生物过程释放放营
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| 关 键 词： | 模拟水动力 湖泊 演替 太湖 生物群落 浮游植物 |
| 收稿时间： | 2000/9/10 0:00:00 |
| 修稿时间： | 2000年9月10日 |
Experimental Study on the Biological Community Succession Caused by Water Flow |
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| CHEN Weimin,CHEN Yuwei,QIN Boqiang,GAO Xiyun,GAO Guang,JI Jiang and XU Qiujing.Experimental Study on the Biological Community Succession Caused by Water Flow[J].Journal of Lake Science,2000,12(4):343-352. |
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| Authors: | CHEN Weimin CHEN Yuwei QIN Boqiang GAO Xiyun GAO Guang JI Jiang and XU Qiujing |
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| Institution: | Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China and Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China |
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| Abstract: | The stimulate experiments show the water flow plays an important role in the succession of plankton community. The species number and biomass of algae under weak water flow (0.124m·s-1) were highest in the experiments. This was coincided with the low ratio of NO3/TDN. The algae abundance was increased from the stationary state to the strong water flow(0.319m·s-1)state, the corresponding TDN/TN, TDP/TP were decreased at the same time. The photosynthetic rates from the stationary state to the strong water flow state were also decreased. The change of zooplanktonic species composition and abundance were larger than that of phytoplankton. The change of cladoceran composition and abundance were extremely strong. The change of species composition and abundance of phyto-zooplankton were influenced by water flow through the change of substance solids, transparency, iight condition under water and the release of nutrients caused by physico-chemico-biololgical processing. |
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| Keywords: | Stimulate experiment plankton succession Taihu La |
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