| 凤眼莲根系微型动物群落的季节动态与净化效能的关系初探 |
| 摘要点击 719 全文点击 1123 投稿时间：1995-01-20 |
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| 中文关键词 凤眼莲 根系 微型动物群落 污水净化 |
| 英文关键词 water hyacinth root system microfauna purification |
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| 中文摘要 |
| 初步研究了在北京动物园利用凤眼莲处理污染水体时其根系微型动物相的季节变异特征,以探讨其对系统净化效能的影响。于1992年在根系水域共发现微型动物70种,其中8月份检出种类数最多,为49属60种。7、8月份凤眼莲根系微型动物生物量(相对数量和平均湿重)较高;原生动物类群的数量百分比在这2个月分别为76.9%和641%。报道了试验中各月(6—10月)检出的优势种(种群)。主要出水理化指标TN、TP、BOD呈季节性波动变化。7月份TSS去除率达82.9%,8月份BOD、TP的去除率分别为66%和91.6%。说明凤眼莲系统净化效能与其根系微型动物群落结构的季节状态相关。 |
| 英文摘要 |
| Seasonal variation characteristics of micro fauna in the root system of water hyacinth has been primarily studied when it was used to treat sewage water from the Beijing Zoo. 70 species of micro-fauna was found in the water-root system in 1992,with the largest number of 60 species in 49 genera August. Biomass (by relative quantity and averal wet weight) of microfauna was heavier in July and August,and the weight percentage of protozoa in the same two months were 76.9% and 64.1%. The dominant species (population) examined in each month (June to October) was reported. The main physical and chemical indexes such as TN,TP and BOD varied seasonally. The removal of TSS was up to 82.9% and those of BOD and TP were 66.6% and 91.6%. This study demonstrates that the purifying efficiency of water-hyacinth system was in a relationship with the seasonal characteristics of the microfauna built up in its rootsystem. |
