LIU Hua.Correlation Analysis on Phytoplankton Quantity and Environmental Factors in Hedi Reservoir[J].Research of Soil and Water Conservation,2015,22(01):163-167.
鹤地水库浮游植物数量与环境因子的相关分析
- Title:
- Correlation Analysis on Phytoplankton Quantity and Environmental Factors in Hedi Reservoir
- 分类号:
- X171.1
- 摘要:
- 浮游植物是水库水环境中的初级生产者和食物链的基础，其数量和生物量与环境因子密切相关，决定水库水生态平衡。通过对鹤地水库浮游植物和水环境因子进行监测，利用SPSS 18.0统计学软件对其数据进行单因素方差分析和相关性分析，探讨浮游植物数量、生物量与环境因子的关系，该研究为保护水质和科学管理提供依据和参考。结果显示：水库浮游植物数量和生物量，除夏季生物量1，2号样点之间差异不显著外，各季节各采样点间都存在显著差异（P < 0.05），并且是夏季多，冬季少，受水温显著影响。浮游植物生物量和数量与环境因子中水温、pH值、溶解氧、化学需氧量、全磷呈正相关，其中与水温、化学需氧量呈极显著正相关（P < 0.01），与全磷呈显著正相关（P < 0.05）；与透明度、全氮、氨氮、硝态氮呈负相关，其中与透明度、氨氮呈显著负相关（P < 0.05）。可见，鹤地水库主要是氮污染。因此，强调控制库区周边生活污水和工业污水的过量排放对维持水库生态系统健康非常重要。
- Abstract:
- Phytoplankton is a fundamental element for primary production and food chain in the reservoir environment, where its quantity and biomass values have shown significant influence on the environmental factors, which in further determines the biological balance of the reservoir water. Through the monitoring and investigation of the phytoplankton quantity and water environmental factors in Hedi reservoir by using SPSS 18.0 statistical software to perform variance analysis and correlation analysis of the phytoplankton quantity, biomass values and environmental factors, the results showed that the phytoplankton quantity and biomass in the reservoir had demonstrated significant difference (P < 0.05), where it was relatively large in the summer and smaller in the winter, which was influenced by the water temperature, except that sample No.1, 2 did not show much difference in the summer. Phytoplankton quantity and biomass showed positive correlations with the environmental factors including water temperature, pH, dissolved oxygen, chemical oxygen demand and total phosphorus, where there are extremely significant positive correlations with the water temperature and chemical oxygen demand (P < 0.01), and significant positive correlations with total phosphorus (P < 0.05). They showed negative correlations with factors such as transparency, total nitrogen, ammonia nitrogen and nitrate-nitrogen, in which there are significant negative correlations with the transparency and ammonia nitrogen (P < 0.05). Therefore, it is shown that it is identifies as the nitrogen pollution. Thus, it is of importance for sustaining the health of the ecosystem in Hedi reservoir where the excessive domestic and industrial wastewater discharge around the reservoir should be controlled. This research can provide references and bases for the scientific management and protection of water quality.
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备注/Memo
收稿日期:2014-02-08;改回日期:2014-05-08。
基金项目:广东省自然科学基金（8152500002000005）；广东省科技计划项目（2011B030800017）；湛江师范学院引进人才和博士启动资助项目
作者简介:刘华(1960-),女,吉林东风人,博士教授,主要从事地理教学和土水生态研究。E-mail:76220494@qq.com