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引用本文:王超,高越超,王沛芳,张松贺,侯俊,钱进.广东长潭水库富营养化与浮游植物分布特征.湖泊科学,2013,25(5):749-755. DOI:10.18307/2013.0518
WANG Chao,GAO Yuechao,WANG Peifang,ZHANG Songhe,HOU Jun,QIAN Jin.Eutrophication and characteristics of phytoplankton distributions in Changtan Reservoir, Guangdong Province. J. Lake Sci.2013,25(5):749-755. DOI:10.18307/2013.0518
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广东长潭水库富营养化与浮游植物分布特征
王超1,2, 高越超1,2, 王沛芳1,2, 张松贺1,2, 侯俊1,2, 钱进1,2
1.河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 南京 210098;2.河海大学环境学院, 南京 210098
摘要:
为掌握梅州市长潭水库富营养化状态与浮游植物分布特征,为控制藻类水华暴发提供科学依据,2011年10月至2012年7月,在长潭水库关键断面选取10个监测点,测定水体理化特征、浮游植物种类、丰度等指标,采用营养状态指数(TLI)和Shannon-Wiener多样性指数法对水质污染现状进行评价,并分析浮游植物类群分布特征.结果表明:长潭水库水体富营养状态在4、10和12月处于中营养级,7月份处于富营养级,营养指数从库区中游上游逐渐降低;观测期间共检出浮游植物4门11科16属,通过丰度比较,发现长潭水库以蓝绿藻为优势种,并且季节变化明显,总体表现为7月 >4月 >10月 >12月;藻类多样性指数分析显示,水库水体污染水平为中度,中游和库区(除7月)为轻度污染,与综合营养指数结果一致;长潭水库污染源调查分析结果表明,该水库主要为氮、磷污染,污染源主要为上游禽畜养殖废水.
关键词:  浮游植物  富营养化  长潭水库
DOI:10.18307/2013.0518
分类号:
基金项目:水利部公益性专项项目(201101020);国家水体污染控制与治理科技重大专项项目(2012ZX07101-008);江苏省杰出青年基金项目(BX2012037)联合资助
Eutrophication and characteristics of phytoplankton distributions in Changtan Reservoir, Guangdong Province
WANG Chao1,2, GAO Yuechao1,2, WANG Peifang1,2, ZHANG Songhe1,2, HOU Jun1,2, QIAN Jin1,2
1.Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, P. R. China;2.College of Environment, Hohai University, Nanjing 210098, P. R. China
Abstract:
In order to understand eutrophication levels and characteristics of phytoplankton distribution in Changtan Reservoir in Meizhou City,Guangdong Province,and provide scientific basis for controlling of algae bloom,physico-chemical data,phytoplankton species and densities were determined from October 2011 to July 2012 from 10 sampling sites in Changtan Reservoir.The status of water pollution was evaluated based on trophic level index,Shannon-Wiener index,and analysis characteristics of phytoplankton distribution in Changtan Reservoir.The results showed that the Changtan Reservoir was at middle eutrophication level characterized in April,October and December,and high eutrophication level with downward trend from upstream to the reservoir in July.A total of 16 phytoplankton species have been identified,which belong to 4 phyla and 11 families,among which cyanobacteria and green alga were predominant with obvious seasonal succession.The density of phytoplankton ranged from high to low in order of the following months: July >April >October >December.Shannon-Wiener index value analysis showed that water pollution level was medium for the reservoir water body,and light in the upstream and reservoir catchment area (except July);this is consistent with the trophic level index values.The pollution source survey showed that nitrogen and phosphorus were the main pollutant indices of Changtan Reservoir,and mainly from livestock breeding wastewater.
Key words:  Phytoplankton  eutrophication  Changtan Reservoir
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