The extremes of the ranges represent relative oligotrophic and eutrophic conditions . 范围的极限代表相对寡营养和富营养的条件。
2.
Study on the conditions for shaking flask fermentation of the exopolysaccharide production from an oligotrophic bacteria 一株寡营养细菌胞外多糖的摇瓶发酵研究
3.
" the key point is that the gulf of eilat is an oligotrophic sea , a sea that does not have nitrogen at all , " loya explained 洛亚解释道： “关键是埃拉特海湾是一片营养贫乏、完全不含氮的海域。 ”
4.
To study the biogeochemical cycle of phosphorus , it is very important to accurately determine the concentration of orthophosphates in the surface of oceans , especially oligotrophic open - oceans 痕量活性磷分析是探索海洋，特别是寡营养海区生物地球化学过程的关键。
5.
The following were the results . ( 1 ) according to water quality assessment , in general , water quality was very clean in qiandaohu lake , and the majority of all sampling points were oligotrophic 本研究得出如下结果： ( 1 )水质评价结果表明，千岛湖总体上水质优良，大多处于贫营养水平，只有新安江进入千岛湖的入口处街口处于中-富营养水平。
6.
According to the modified carlson ' s trophic state index , the lake has recently been varied between oligotrophic and mesotrophic . cyanophyta , bacillariophyta and crytophyta were the superiority population in qiandao lake , but cyanophyta was the superiority population in algae bloomed month such as march , june and july 蓝藻门、硅藻门、隐藻门为千岛湖的优势种群，但在藻类爆发的5月、 6月和7月，均是蓝藻门为优势种群，优势种群与1992年比较发生了i删。
