武汉东湖不同营养型子湖的水生生物与水域功能   总被引：4，自引：1，他引：3       下载免费PDF全文

况琪军  夏宜琤  李植生  庄德辉  刘保元  詹发萃 《湖泊科学》1997,9(3):249-254

于１９９１－１９９３年研究了武汉东湖４个营养型不同的子湖中水生生物与水域功能，表明各子湖之间各类水生生物的生态特征存在明显差异，茶港湾的ＨＢＣ和ＦＣ的数量，藻类的细胞密度和初级生产量，浮游动物和底栖动物的个体密度等均居４个子湖之首，其水质已达到了超富营养水平，将该湖区的作为污水天然净化区进行管理，可望对东湖的主体湖区起到缓冲和保护作用，郭郑湖的水质状况仅次于茶港湾湖区，处于富营养阶段，该湖区多项生  相似文献   

Study on the phytoplankton · in a large reservoir   总被引：3，自引：0，他引：3  

Xia Yicheng  Kuang Qijun 《中国海洋湖沼学报》1992,10(4):359-370

A comprehensive study on the community structure and function of the phytoplankton in Taipinghu Reservoir, the largest reservoir (9400 ha) in Anhui Province, China, was carried out during 1985–1986. A total of 175 species of algae belonging to 8 phyla and 87 genera was noted. The composition of phytoplankton was dominated by species of Chlorophyta, Cyanophyta and Bacillariophyta. The species number, cell density and biomass of the three groups were respectively 88%, 86.5% and 78.9% of the total phytoplankton. The weighted annual average biomass was 1.52 mg/L and cell density was 1.43×10⁶ ind/L. The growth maximum was observed in summer. Diatoms were abundant in the region adjoining a river. A large number of flagellated algae such asEuglena andChromulina occurred in the artificial fish culture bay. It can be inferred from the algal composition and total nitrogen concentration (1.48 mg/L) that this reservoir is a mesotrophic water body that had undergone slight natural eutrophication. Presented are an equation for the relation between cell density and biomass of algae and a newly developed method based on the energy flow principle in ecology for theoretically estimating algal fishery potential. The algae volumes of 128 species were measured for calculating the biomass.  相似文献   

三峡工程的生态环境问题   总被引：3，自引：2，他引：1       下载免费PDF全文

夏宜琤 《湖泊科学》1993,5(2):181-191

对长江三峡工程有关的若干生态环境问题作了比较系统的综述。主要涉及生物多样性,珍稀物种和长江渔业;人、地、粮关系;中游湖泊与湖区环境;河口生态环境以及库区地质环境等。  相似文献