【摘要】 <正>化学监测滇池水和底泥的同时,分别分离了各水域的放线菌,并进行拮抗测定,表明滇池各水域确有不同程度的污染,其中草海的水质污染比外海严重。滇池底泥藏存着丰富的抗菌素产生菌。 整个地壳无非是生命世界和非生命世界加成的一个巨系统,在这个巨系统中,进行着不停的能量交换,信息传递和物质转化的动态平衡。但是。社会的展发,特别是近代工业的大发展,严重地影响着这个巨系统中的水生生态和陆生生态,最令人注目的是环境污染及其对生物生态的影响。国内外都非常重视并致力于环境保护和生态平衡的研究,通过科学管理和发展有利的生物群落,以消除或降低有损于生态环境的污染指数及不利因素。高原湖泊是高更多还原

【Abstract】 The actinomycetes were respectively isolated from the sediments and water of ifve sampling areas in Dian-chi lake meanwhile the water and sediments were monitored with chemistry methods bothiin dry and rainy seasons. As a result we come to following conclusions:l.The total hardness, total basicity, COD and the contents of ions K+, Na+, Mg++, Fe+++, NH4+, Cl,- F-, HCO3-, of the water of Dian-chi lake, in rainy season are much less than those in the dry, But the contents of elements Ca, Mg, S, Fe, Mn, Cu, As, Cd, .Za and Pb in sediments ( only internal lake) in rainy season are much more than those in dry season.2.The contents of nitrogen ( N ) and carbohydrates(C) in the sediments are positively interrelated. The ratio values of C/N of the four areas in out lake are approximate except the Caohai area.3.The strains of stretomyces and Micromonospora are the most dominant and the strains of Nocardia and Actinoplanes, are secondary in the ten genera of the actinomycetes isolated from the lake. About half of strains of the actin-omycetes are possessed of antibacterial action.更多还原