jiekou 中文意思是什麼
jiekou
解釋
街口-
Only the water at jiekou had been eutrophic. the result of biological assessment was that the average density of phytoplankton at all the sampling spots was more than 1, 000, 000 per litre, indicating that the lake was eutrophic going by the population density. but this density of phytoplankton was higher than that in similar lakes at the same pollution level
生物評價結果認為，千島湖浮遊藻類平均密度較同類營養水平的淡水水體高，其所有取樣點浮遊藻類平均密度都10 ~ 6個? l ，國內外一般認為當浮游植物平均密度10 ~ 6個? l時，其已經達到富營養化水平，因此單從浮游植物密度來看，可以認為千島湖已達到水體富營養化。
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