| 珠江广州河段微生物和浮游植物群落与水质特征 |
| The Characteristics of Microbial and Phytoplankton Community and Water Quality in Guangzhou Segment of Pearl River |
| 投稿时间：2010-10-26 修订日期：2010-11-18 |
| DOI： |
| 中文关键词:浮游植物 水质特征 微生物 珠江 |
| 英文关键词:phytoplankton water quality microbial Pearl River |
| 基金项目:国家自然科学基金（４１０４００３０；４０６７３０６２）。 |
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| 中文摘要: |
| 2008年5至2010年4月对珠江广州段中大码头和鱼珠码头的环境理化因子、可培养细菌总数、大肠菌群、粪大肠菌群以及浮游植物进行了为期2年的逐月调查。调查期间,2站点总氮平均浓度分别为(7.02±4.18)mg/L和(8.03±5.02)mg/L,总磷平均浓度分别为(0.47±0.29)mg/L和(0.50±0.27)mg/L;可培养细菌总数丰度为103～105个/mL,大肠菌群及粪大肠菌群丰度均在102～103个/mL范围内;浮游植物细胞密度为(1.50～13.17)×106个/L,硅藻门、绿藻门和蓝藻门为主要优势类群。浮游植物最高细胞密度出现在秋季,最低出现在夏季。2站点粪大肠菌群丰度超过地表水Ⅴ类标准,有机污染严重。以浮游植物作为评价指标,珠江广州段为富营养化水体,需加大对生活污水的治理力度。 |
| 英文摘要: |
| Temporal and spatial change of cultural bacteria ,coliform, fecal-coliform and phytoplankton were investigated at two fixed sampling sites(Zhongda and Yuzhu port)in Guangzhou segment of Pearl River from May 2008 to April 2010. Results indicates that mean concentrations of total nitrogen were (7.02±4.18 )mg/L and (8.03±5.02)mg/L, total phosphorus were (0.47±0.29)mg/L and (0.50±0.27)mg/L at two sites,respectively . The abundance of culturable bacteria ranged from 103～105cfu/mL. The abundance of coliform and fecal-coliform were 100-1000cfu/mL respectively. The two sampling stations were characterized by high abundance of phytoplankton with abundance ranged from (1.50-13.17))×106/L cells/L. Bacillariophyta, Chlorophyta and Cyanobacteria were the three main were the three main dominant groups in this segment. The highest phytoplankton abundance occurred in autumn, and the minimum density appeared in summer. The quantitiy of fecal-coliform was still away from theⅤcategory of environmental quality standard for surface water, which indicate the organic pollution was serious. These results demonstrated that the water quality could be classified as poor quality and eutrophication in this river segment. |
| 张俊逸,蒋江峦,刘擎,龚映雪,王庆,杨宇峰.2011.珠江广州河段微生物和浮游植物群落与水质特征[J].水生态学杂志,32(2):38-46. |
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