| 西湖叶绿素a周年动态变化及藻类增长潜力试验 |
| |
| 引用本文： | 吴洁,钱天鸣,虞左明.西湖叶绿素a周年动态变化及藻类增长潜力试验[J].湖泊科学,2001,13(2):143-148. |
| |
| 作者姓名： | 吴洁 钱天鸣 虞左明 |
| |
| 作者单位： | 1. 杭州市环境监测中心站
2. 杭州市环境保护研究所 |
| |
| 摘 要： | 通过1999年1－12月对杭州西湖主要湖区叶绿素a含量及水量理化指标的逐月测定，分析了西湖主要湖区叶绿素a含量周年动态变经特征及各种环境生态因子对叶绿素a的影响，并对湖水进行了藻类增长潜力试验，研究结果表明，西湖主要湖区叶绿素a含量总体保持在同一水平，年变化在41．16－191．26mg/m^3之间，年均值为为99．98mg/m^3。叶绿素a妗有明显的季节变化特征，夏季和初秋为高峰、冬季最低，水体总磷浓度与叶绿素a年周期动态变化一致，叶绿素a含量的季节变化与水温变化呈显著正相关，西湖为典型的蓝藻型湖,叫氮年均值为2．08mg/L总磷年均值为0．121mg/L,N:P大于17，水体中磷对藻类增长的促进作用比氮更加明显。
|
| 关 键 词： | 西湖 叶绿素a 藻类 生态因子 周年动态变化 藻类增长潜力试验 磷 氮 |
| 收稿时间： | 2000/8/28 0:00:00 |
| 修稿时间： | 2000年8月28日 |
The Annual Fluctuation of Chlorophyll-a and the Algal Growth Potential Test in West Lake, Hangzhou |
| |
| WU Jie,QIAN Tianming and YU Zuoming.The Annual Fluctuation of Chlorophyll-a and the Algal Growth Potential Test in West Lake, Hangzhou[J].Journal of Lake Science,2001,13(2):143-148. |
| |
| Authors: | WU Jie QIAN Tianming and YU Zuoming |
| |
| Institution: | WU Jie 1 QIAN Tianming 1 YU Zuoming 2 |
| |
| Abstract: | The annual fluctuation of chlorophyll a concentrations and some chemical indicators were measured in the main areas of West Lake, Hangzhou during January December 1999. The algal growth potential test in water from West Lake were made. The relations between the chlorophyll a concentrations and various ecological factors were discussed. The experimental results are as follows. The concentrations of chlorophyll a in main Lake areas appear in the same level. The range was 41.16-191.26mg/m 3 and the annual average concentration was 99.98mg/m 3. The concentrations of chlorophyll a showed marked seasonal variation the highest in summer and early autumn and the lowest in winter. The concentration of chlorophyll a has close relation with water temperature and TP. The West Lake is a typical Cyanophyta pattern lake in which the annual average concentrations of TN and TP were 2.08mg/L and 0.121mg/L respectively. The ratio of TN to TP is more than 17 in West Lake, indicating TP's domination in the stimulation of algal growth. |
| |
| Keywords: | West Lake(Hangzhou) Chlorophyll a algal ecological factors annual fluctuation algal growth potential test |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《湖泊科学》浏览原始摘要信息 |
| 点击此处可从《湖泊科学》下载免费的PDF全文 |
