清晨的宁静映照着天空和大地，被五花海里的矿物沉积物和水生植物染上了色彩。
Morning stillness reflects heaven and earth, tinted by mineral deposits and aquatic plant life in Five Flower Lake.
目前，水体与沉积物中PAH含量对该海域的水生生物尚未构成威胁。
For the time being, there is not potential threat to aquatic organisms for PAH concentrations both in water and sediment in Deep Bay.
硅藻土是几十万年前水生浮游类生物硅藻的沉积物，它的孔隙率在90%以上，是活性炭的5000倍。
For hundreds of thousands of years ago diatomite is floating creature of aquatic diatoms, it porosity of sediments at more than 90%, is 5000 times of the activated carbon.
对太湖表层水、沉积物和水生生物样品的丁基锡污染物进行了研究。
The results show that butyltins content in most of the surface water samples is under the limit of the detection; five out of ten sediment samples are measured detectable butyltins.
沉积物中氮磷比值表明湖水处于富营养化状态，有机物主要来源于水生植物。
The ratio of nitrogen to phosphorus in the sediments indicates that the lake is in the state of eutrophication, and the organic roots possibly in the hydrophytes.
制约水生植物生长、分布的主要环境因素是水深、风浪、透明度以及沉积物的组成等；
The main environmental factors of restricting the growth and distribution of aquatic plants are water depth, wird-driven waves and transparency of lake water as well as composition of sediment, etc.
制约水生植物生长、分布的主要环境因素是水深、风浪、透明度以及沉积物的组成等；
The main environmental factors of restricting the growth and distribution of aquatic plants are water depth, wird-driven waves and transparency of lake water as well as composition of sediment, etc.
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