| 营养盐输入对太湖水体中磷形态转化及藻类生长的影响 |
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| 引用本文： | 王睿喆,王沛芳,任凌霄,王超,王颖雪.营养盐输入对太湖水体中磷形态转化及藻类生长的影响[J].环境科学,2015,36(4):1301-1308. |
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| 作者姓名： | 王睿喆 王沛芳 任凌霄 王超 王颖雪 |
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| 作者单位： | 河海大学环境学院,南京210098;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 |
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| 基金项目： | 国家重点基础研究发展规划(973)项目(2010CB429006); 中央高校基本科研业务费专项(2014B03814) |
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| 摘 要： | 外源营养盐输入会对湖泊水体中磷的形态转化及藻类生长产生影响.为研究其影响规律,于春季选取太湖梅梁湾水体为研究对象,以KNO3和K2HPO4添加系列氮磷负荷,在试验过程中对各形态磷的浓度、藻类生物量(Chl-a)和碱性磷酸酶活性(APA)进行同步分析测定.结果表明,春季太湖梅梁湾水体中浮游植物的生长主要受到磷限制,加氮对其生长没有明显的促进作用.加磷至SRP=0.015 mg·L-1的水体中浮游植物生长情况最好,叶绿素a的含量和生长速率(μ)最大.添加硝酸盐能显著促进APA的增长,提高水生生物对磷的吸收利用能力,加快磷循环的速率;磷酸盐对APA则具有活性诱导-抑制机制,当水体中磷酸盐浓度在一定范围内(PO3-4-P≤0.025 mg·L-1)时,酶活性有显著提高.对水体中磷的循环转化过程和碱性磷酸酶的活性诱导-抑制机制的研究结果有助于揭示藻类生长过程中营养盐的补偿途径,为深入揭示藻类暴发机制提供理论基础.
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| 关 键 词： | 碱性磷酸酶 磷形态 氮磷添加 浮游植物 太湖 |
| 收稿时间： | 2014/8/11 0:00:00 |
| 修稿时间： | 2014/11/27 0:00:00 |
Effects of Nutrient Inputs on Changes of Phosphorus Forms and Phytoplankton Growth in Taihu Lake |
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| WANG Rui-zhe,WANG Pei-fang,REN Ling-xiao,WANG Chao and WANG Ying-xue.Effects of Nutrient Inputs on Changes of Phosphorus Forms and Phytoplankton Growth in Taihu Lake[J].Chinese Journal of Environmental Science,2015,36(4):1301-1308. |
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| Authors: | WANG Rui-zhe WANG Pei-fang REN Ling-xiao WANG Chao and WANG Ying-xue |
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| Institution: | College of Environment, Hohai University, Nanjing 210098, China;Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China;College of Environment, Hohai University, Nanjing 210098, China;Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China;College of Environment, Hohai University, Nanjing 210098, China;Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China;College of Environment, Hohai University, Nanjing 210098, China;Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China;College of Environment, Hohai University, Nanjing 210098, China;Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China |
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| Abstract: | |
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| Keywords: | alkaline phosphatase phosphorus forms N and P input phytoplankton Taihu Lake |
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