不同磷浓度下氮磷比对四尾栅藻生长的影响  

Effect of N/P ratio on algae growth at different phosphorus concentrations

作　　者：吴小军 Wu Xiaojun(Henan Research Institute of Fishery Sciences,Zhengzhou 450044)

机构地区：[1]河南省水产科学研究院,郑州450044

出　　处：《河南水产》2024年第4期20-22,26,共4页HENAN FISHERIES

基　　金：河南省农科院自主创新“富营养水体氮、磷比和浓度对蓝藻、栅藻竞争关系的研究”项目(2023ZC114)。

摘　　要：本文以四尾栅藻为研究对象,在室内通过试验来探究不同磷浓度条件下氮磷比的大小与四尾栅藻(Scenedesmus quadricauda)生长状况的关系。试验结果表明,在低、中磷浓度的条件下,氮磷比值与四尾栅藻密度呈正相关,即随着氮磷比值增大,四尾栅藻密度升高;在高磷浓度即磷浓度为0.8~1mg/L范围内,氮磷比值增大,四尾栅藻的藻密度先升后降。研究结果显示,氮磷浓度和氮磷比值均对四尾栅藻的生长具有重要影响,过低或过高的氮磷比都不利于四尾栅藻的生存。In this paper,the four-tailed test to explore the relationship between the size of nitrogen-phosphorus ratio and the growth status of four-tail gate(Scenedesmus quadricauda)under the condition of different phosphorus concentration.In this test,the ratio of nitrogen-phosphorus ratio,i.e.,increases.The results showed that both N/P concentration and N/P ratio had an important effect on the growth of P.teta,and found that either too low or too high N/P ratio were detrimental to survival.

关 键 词：四尾栅藻 磷浓度 氮磷比 生长 影响 

分 类 号：X173[环境科学与工程—环境科学] X52