摘要
本文采用化学分析将湖水中的磷划分为七种形态:总磷(TP)、总反应磷(TRP).总溶解磷(TSP)、溶解反应磷(SRP)、溶解的水解性磷(SHP)、溶解的光解性磷(UVSRP)以及颗粒磷(PP).为了确定生物有效磷,把湖水灭菌后再接入羊角月芽藻进行试验,研究了湖水中各种磷形态对羊角月芽藻最大生长量的影响.结果表明:当湖水中磷含量大于100μg/l时,藻的最大生长量与大多数磷形态有较好的相关性(n=16,r>0.8600),而与溶解反应磷相关性较差(n=16,r=0.7113).也研究了羊角月芽藻对磷形态的摄取过程,初步探讨了磷形态的生物转化.
In this paper chemical analysis was used to divide phosphorus in lake water into seven species : total phosphorus (TP), total reactive P (TRP), total soluble P(TSP), soluble reactive P(SRP), UV soluble reactive P(UVSRP), soluble hydrolytic P(SHP)and particulate P (PP). To identify bioavailable phosphorus, water samples were autoclaved before inoculation with the test algae (Selenastrum capricornutum). The effect of various phosphorus species on maximum algae growth is highly correlated with most of phosphorus species(n=16, r>0.8600), but poorly correlated with solube reactive P(n=16, r = 0.7113) in lakes containing>100μg·TP·liter-1. Kinetic processes of uptake for various phosphorus species by algae were also studied. Biotransformation of phosphorus species is also discussed.
出处
《环境化学》
CAS
CSCD
北大核心
1994年第2期146-151,共6页
Environmental Chemistry
基金
国家自然科学基金资助项目.
关键词
湖水
磷形态
生物有效性
lake water, phosphorus species, bioavailability.
