| 济南流域春、夏、秋季轮虫群落的结构及其与环境因子的关系 |
| Spatial-temporal Dynamics of Rotifer Community Structure in the Jinan Region |
| 投稿时间：2015-08-14 修订日期：2016-06-29 |
| DOI：10.15928/j.1674-3075.2016.03.014 |
| 中文关键词:济南地区 轮虫 群落结构 环境因子 |
| 英文关键词:Jinan region rotifer community structure environmental factors |
| 基金项目:辽宁省优秀人才支持计划项目（LR2015009）；山东省水利厅、山东省财政厅“水生态文明试点科技支撑计划”（SSTWMZCJH-SD02）；济南市水生态时空变异驱动机制及自动监测模式项目；国家自然科学基金（51279005） |
|
| 摘要点击次数: 3527 |
| 全文下载次数: 2742 |
| 中文摘要: |
| 探讨轮虫群落结构及与水质环境因子之间的关系，为合理开发济南地区水资源以及水环境污染治理提供可靠依据。2014年5月（春季）、8月（夏季）和10月（秋季）分别对济南地区19个站点采样调查，分析不同季节轮虫群落结构的分布特征，应用香农维纳指数和均匀度指数评价济南地区水质健康状况，典范对应分析法判定影响轮虫群落结构的主要环境因子。济南地区水体共鉴定出轮虫17属38种，以龟甲轮属和臂尾轮属为主，春季、夏季和秋季轮虫种类分别为30、17和9种，轮虫密度平均值为114.4、10和8.3个/L。轮虫污染指示种20种，其中寡污带3种、寡污至β中污型5种、β中污性8种、α中污型2种、β-α中污型2种；轮虫污染指示种类占总种类数的52.63%，密度占77.99%；春季出现污染指示种15种，夏季和秋季分别为11种和8种。春季的优势种为卵形彩胃轮虫，夏季的优势种为萼花臂尾轮虫，秋季的优势种为萼花臂尾轮虫、卜氏晶囊轮虫、前节晶囊轮虫。香农维纳指数平均值分别为2.67、1.38和1.20；均匀度指数平均值分别为0.66、0.41和0.35。典范对应分析结果，主要影响南部、中部和北部地区轮虫群落结构的环境因子，春季为总氮、氨氮和硬度，夏季为高锰酸钾，秋季为总磷。综合评价济南地区水生态呈中度污染。 |
| 英文摘要: |
| Rotifers are important indicators of water quality and widely used for environment monitoring as they are highly sensitive to environmental change. During the spring, summer and autumn of 2014, we investigated the structure and diversity of the rotifer community in waters of the Jinan region. Water quality was evaluated and the relationship between rotifer community structure and environmental factors was analyzed. The study provides data to support scientific management of water resources and water pollution control in the Jinan region. A total of 19 sampling sites were selected, representing each county and the Jinan urban area. Qualitative rotifer samples were obtained by trawling with a No.25 plankton net both horizontally and vertically at sampling sites. For quantitative rotifer analysis, a water sampler was used to collect samples at different depths and 50 L samples were mixed and filtered. Sediments were concentrated to 30 mL after samples had settled 48h. Rotifer species identification and density determination were completed under a microscope. Physicochemical parameters of water at each site were determined including water temperature (Temp), pH, dissolved oxygen (DO), conductivity (Cond), Ca2+, Cl-, TD, ALK, NH3-N, CODMn, TP and TN. A total of 38 rotifer species from 17 genera were identified with dominant species from genera Keratella and Brachionus. In spring, summer and autumn, 30, 17 and 9 rotifer species were recorded, respectively, with average densities of 114.4 ind/L, 10 ind/L and 8.3 ind/L. Rotifer pollution indicators included 20 species; 3 associated with oligosaprobic water, 5 with oligosaprobic to β-medium-polluted water, 8 with β-medium-polluted water, 2 with α-medium-polluted water and 2 β-α-medium-polluted water. Fifteen pollution indicator species were observed in spring, 11 species in summer and 8 species in autumn. The number and density of pollution indicators accounted for 52.63% and 77.99% of the total number and density of the rotifer community. Chromogaster ovalis, Brachionus calyciflorus, Brachionus calyciflorus, Asplanchna brightwellii and Asplanchna priodonala were the dominant rotifer species. The average Shannon-Wiener indices of the rotifer community in spring, summer and autumn were 2.67, 1.38 and 1.20 respectively, and the average Pielou evenness indices were 0.66, 0.41 and 0.35. Canonical correspondence analysis (CCA) showed that TN, NH3-N and Ca2+ were the main environmental factors affecting rotifer community structure in spring, CODMn in summer and TP in autumn. Overall, water in the Jinan region is moderately polluted. |
| 王博涵,李晨,姜力文,陈鹏,殷旭旺,徐宗学.2016.济南流域春、夏、秋季轮虫群落的结构及其与环境因子的关系[J].水生态学杂志,37(3):93-101. |
| 查看全文 查看/发表评论 下载PDF阅读器 HTML |
|
|
|
