| 棉花滩水库浮游生物群落结构特征研究 |
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| 投稿时间：2012-09-19 修订日期：2012-10-31 |
| DOI： |
| 中文关键词:棉花滩水库 多样性 浮游生物 群落结构 |
| 英文关键词:Mianhuatan Reservoir diversity indices plankton community structure |
| 基金项目:公益性行业(农业)科研专项(200903048-03);江苏省自然科学基金(BK2011183);嘉兴市科技支撑计划(2010AY1009) |
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| 中文摘要: |
| 为探究紫金铜矿事故后棉花滩水库浮游生物群落结构的基本情况,保护水域生态环境,提高水面综合利用效益,恢复生产秩序及水域合理生态结构,根据水库型态设置22采样点,对棉花滩水库浮游生物的密度及生物量进行了监测。结果表明,浮游植物6门、35属、43种,密度为14.16×104～131.66×104个/L,平均密度为42.89×104个/L,生物量为0.096～7.174mg/L,平均生物量为1.401mg/L,浮游植物生物量和密度在空间上呈现从上游至下游逐渐降低的趋势;Shannon-Wiener多样性指数在0.628～2.671,Pielou均匀度指数为0.231～0.839,根据评价标准判断,大都属轻度污染。浮游动物4门、13种,密度为36～285个/L,平均密度为个79个/L,生物量为0.154～3.110mg/L,平均生物量为1.421mg/L;多样性指数为1.300～2.441,均匀度指数为0.625～0.982。棉花滩水库浮游植物为硅藻-绿藻型,生物评价其属于中营养型;事故发生水域浮游生物群落结构受到外界的干扰,呈现不稳定状态。 |
| 英文摘要: |
| Aims of this study were to explore plankton community structure in Mianhuatan Reservoir after Zijin copper accident and to provide a reference for protecting ecological environment，improving the utilization efficiency of the water, and recovering the production order and the reasonable ecological structure in the waters. 22 sampling points were set according to the water body environment and the situation of pollution. The density and biomass of plankton in Mianhuatan Reservoir were estimated. Results indicated that:6 phyla , 35 genus and 43 species of phytoplankton were observed ;densities and biomasses of phytoplankton were respectively 14. 16 x 104一131.66 x 104ind. /L and 0. 096一7. 174 mg/L; the mean density and mean biomass were respectively 42. 89 x 104 ind. /L and1 .401 mg/L; the biomass and density of phytoplankton presented a trend of gradual decline from top to bottom. The diversity index fluctuated from 0. 628 to 2. 671，and the evenness index was in the range of 0. 231一0. 839.The Mianhuatan Reservoir mostly were in mild contamination，according to the evaluation standard ; there were 4 phyla，13 kinds of zooplankton in the water with densities 36一285 ind. /L, the mean density 79 ind. /L，biomasses 0. 154一3.110mg/L, and the mean biomass 1.421 mg/L ; the diversity index and evenness index were respectively 1 .300一2.441 and 0.625一0.982. The diversity indices of phytoplankton and some other data showed that Mianhuatan Reservoir was a middle nutrition reservoir and the plankton community structures of a part of this reservoir were unstable and susceptible to the outside interference. |
| 陈丽萍,周彦锋,尤洋.2012.棉花滩水库浮游生物群落结构特征研究[J].水生态学杂志,33(6):62-68. |
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