摘要
在太湖湖水中添加不同的氮、磷营养物进行藻类生长潜力测试，试验结果表明：单独添加ＨＰＯ２－４和同时添加ＨＰＯ２－４、ＮＯ－３的所有浓度组均能显著促进斜生栅列藻（Ｓｃｅｎｄｅｓｍｕｓｏｂｌｉｑüｕｓ）和羊角月芽藻（Ｓｅｌｅｎａｓｔｒｕｍｃａｐｒｉｃｏｒｎｕｔｕｍ）的增长，而单独添加ＮＯ－３和ＮＨ＋４对二种藻类不但均无促进、并有一定抑制作用，表明了磷是太湖藻类生长的限制因子。在所试验条件下，厌氧状态（ＤＯ为０～２．５ｍｇ／Ｌ）下沉积物释放后滤液能促进斜生栅列藻增长，但对羊角月芽藻无促进效应；好氧状态下（ＤＯ为７．５～８．０ｍｇ／Ｌ）沉积物释放后滤液均不能促进二种藻类增长。
Addition of nutrients (N and P) to lake water in Various doses had stimulated the growth of Selenastrum capricornutum and Scendesmus obliquus . The results showed that addition of HPO 2- 4, NO - 3 to lake water had obviously stimulated the growth of Algae, but did not show stimulation effects as NH + 4 and NO - 3 alone added. It appears that phosphorus is a limiting factor for algal growth in Taihu Lake. The filtrate of the anaerobic release test of sediment had stimulated the growth of Scendesmus obliquus , but had not stimulated the growth of Selenastrum capricornutum . The filtrate of the aerobic release test of Sediment had not stimulated the growth of Algae under the test conditions.
出处
《南京大学学报（自然科学版）》
CSCD
1996年第2期253-260,共8页
Journal of Nanjing University（Natural Science）
基金
国家自然科学基金项目
关键词
生长潜力
沉积物
藻类
大湖
湖水
磷
The Algal Growth Potential Test, Eutrophication, Sediment, Algae
