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盛夏初秋,天气炎热时,池塘中常在下风水面漂浮着一层翠绿色的水花(湖靛),系几种蓝藻大量繁植而形成的。这种藻体喜欢生活在水温28℃—32℃,PH值为8—9.5
In mid-summer and early autumn, when the weather is hot, the pond often floats with a layer of emerald water (lake indigo) on the surface of the lower wind, which is formed by the massive planting of several cyanobacteria. This algae like to live in water temperature 28 ℃ -32 ℃, PH value of 8-9.5