投稿中心

审稿中心

编辑中心

期刊出版

网站地图

友情链接

引用本文:况琪军,夏宜琤.武汉东湖主要湖区的藻类与营养型评价.湖泊科学,1995,7(4):351-356. DOI:10.18307/1995.0409
Kuang Qijun,Xia Yicheng.Algae and trophic status of Donghu Lake (Wuhan) with reference to their changes during the past 40 years. J. Lake Sci.1995,7(4):351-356. DOI:10.18307/1995.0409
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1794次   下载 1478 本文二维码信息
码上扫一扫!
分享到: 微信 更多
武汉东湖主要湖区的藻类与营养型评价
况琪军, 夏宜琤
中国科学院水生生物研究所, 武汉 430072
摘要:
对东湖9个湖区藻类的群落结构、生长潜力、初级生产力和营养状况进行了比较研究。结果表明,9个湖区藻类的种类组成无明显差异,绿藻为主,蓝藻和硅藻次之;藻类的生长潜力和初级生产力各湖区差异较大,均以茶港湾重污染区最高和牛巢湖最低。根据各项指标综合分析,9个湖区水质优劣的顺序是:牛巢湖、汤林湖、后湖、郭郑湖、菱角湖、筲箕湖、庙湖、喻家湖和茶港湾重污染区。对东湖的大水面郭郑湖40年来藻类的有关参数进行比较发现,藻类个体数量的峰值40年内增加了百倍以上,而藻类的属数却比50年代减少了一半,藻类多样性下降,种类小型化现象明显;初级生产力也有较明显增长,60年代和90年代的水柱口产氧量分别为1.6和4.60O28/(m2·d)。到目前为止,东湖的污染在继续发展,富营养化仍在加重。
关键词:  藻类  营养水平  退化生态系统  初级生产力  武汉东湖
DOI:10.18307/1995.0409
分类号:
基金项目:"八五"国家科技攻关项目(85-908-01)
Algae and trophic status of Donghu Lake (Wuhan) with reference to their changes during the past 40 years
Kuang Qijun, Xia Yicheng
Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072
Abstract:
Donghu Lake> located at the northeastern part of Wuhan city, is a shallow lake with an area of 32 km2. It is a hyper-eutrophic lake polluted by domestic sewage and industrial waste. The community structure, growth potential (AGP), cell density, chlorophylLa and primary production of algae in nine areas of the lake were investigated in 1991~1993. Green algae is the most important component and blue-green algae as well as diatoms are subdominant groups in the lake areas. The dense bloom of blue-green algae has vanished since 1985. The maximum AGP and primary production were found in Chagang area and the minimum in Niuchaohu area. According to the parameters concerning trophic level obtained in this study, the descending order of water quality of the nine lake areas is Niuchaohu area, Tanglinghu eirea, Houhu area, Guozhenghu area, Lingjiaohu area, Shaojihu area, Miaohu area, Yujiahu area and Chagang area. As compared with the algal data from Guozhenghu area (a typical sublake) after the 1950s, the decadal peak value of algal individuals increased over one hundred times in the past 40 years. However, the genera of algae in the sublake were reduced by 54% during the same period. The results clearly demonstrate that the eutrophication of Donghu Lake has not yet been controlled. The features of degenerated lake ecosystem are quite obvious in this lake.
Key words:  Algae  trophic level  degenerated ecosystem  primary production  Donghu Lake (Wuhan)
分享按钮