应用生态学报2012，Vol.23Issue(9)：2573-2579,7.
嘉陵江四川段藻类植物群落结构及水质评价
Community structure of phycophyta and evaluation of water quality in Sichuan section of Jialing River
摘要
Abstract
In order to understand the characteristics of the phycophyta community structure and water quality in Sichuan section of Jialing River, water samples were collected from 12 sites along the section in dry season (January) and rainy season (September) , with the phycophyta species composition, Shannon diversity index (H'), Pielou evenness index (E) , and Margalef richness index (d) analyzed. A total of 171 phycophyta species (including variety) were collected, belonging to 8 phyla, 42 families, and 95 genera, among which, Bacillariophyta, Chlorophyta, and Cyano-phyta were the dominant groups. In dry season, the mean cell density of the phycophyta was 14. 71 ×104 ind·L-1, being the highest at sites JX (28. 33.4×104 ind·L-1 ) and HYZ (25.40×l04 ind ·L-1 ) , and diatom species had a higher richness than the others. In rainy season, the mean cell density was only 10.78×104 ind· L-1 , being the lowest (3. 31×104 ind · L-1) at site QJ, and the species richness of chlorophyta and cyanobateria had somewhat increase. In the whole section, the mean d, H', and E of the phycophyta were 2. 35, 1. 60, and 0.31 in dry season, and 2. 57, 2. 09, and 0. 39 in rainy season, respectively. Our results indicated that there were significant differences in the spatiotemporal distribution patterns of the community structure, cell density, diversity index, and evenness index of phycophyta in Sichuan section of Jialing River. The water quality of this section was overall belonged to mesosaprobic, being better at sites JX and SX (belonged to oligosaprobic or β-mesosaprobic) , but worse at sites CX, HYZ, XZ, and QJ ( belonged to α-mesosaprobic ) .关键词
嘉陵江/浮游藻类/群落结构/水质Key words
Jialing River/planktonic phycophyta/community structure/water quality分类
资源环境引用本文复制引用
马永红,曾燏,任丽萍,周材权..嘉陵江四川段藻类植物群落结构及水质评价[J].应用生态学报,2012,23(9):2573-2579,7.基金项目
西南野生动植物资源保护教育部重点实验室开放基金项目(XNYB11-3)资助. （XNYB11-3）
