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尹大强,覃秋荣,阎航.环境因子对五里湖沉积物磷释放的影响.湖泊科学,1994,6(3):240-244. DOI:10.18307/1994.0307
Yin Daqiang,Qin Qiurong,Yan Hang.Effects of environmental factors on release of phosphorus from sediments in Wuli Lake. J. Lake Sci.1994,6(3):240-244. DOI:10.18307/1994.0307
环境因子对五里湖沉积物磷释放的影响
Effects of environmental factors on release of phosphorus from sediments in Wuli Lake
投稿时间:1993-07-12  修订日期:1993-11-25
DOI:10.18307/1994.0307
中文关键词: 沉积物  磷释放  藻类生长  五里湖
Keywords: Phosphorus release from sediments  algae growths  Wuli Lake  sediment
基金项目:国家自然科学基金项目(29130300)
作者单位
尹大强 南京大学环境科学与工程系, 南京210008 
覃秋荣 南京大学环境科学与工程系, 南京210008 
阎航 南京大学环境科学与工程系, 南京210008 
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中文摘要:
      本文论述了溶解氧、pH、温度和沉积物中微生物作用对太湖五里湖区沉积物磷释放的影响,以及在pH为8.4、好氧和厌氧二种状态下沉积物释放试验后滤液对斜生栅列藻(Scende smas obliqaas)和羊角月芽藻(Selenastram caprivarnnlam)增长的影响.结果表明:溶解氧降低、pH和温度升高、微生物作用有利于沉积物磷向水体释放,与湖水组相比,厌氧状态下沉积物磷释放后滤液能显著促进斜生栅列藻增长,但不能促进羊角月芽藻增长,好氧状态下沉积物磷释放后滤液均不能促进二种藻类的增长。
Abstract:
      This paper studies the effects of DO, pH, temperature and the growth of bacteria on the release of phosphorus from Wuli Lake sediment.The result of experiments shows that the quantity of phosphours released from sediments into the water body was getting greater with decrease in DO, pH, temperature but increase in the growth of bacteria.The filtrate of the anaerobic release test may stimulate the growth of Scendestnus obliquus, but not the growth of Selenaslrum capricornutum.It is showed that filtrate of the aerobic release test can stimulate neither of the algae.
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