营养水平

According to the eutrophication assessment in the survey area, in areas closed to the river entrance and east coast of the Liaodong Bay, seawater showed the eutrophication or moderate eutrophication status, areas far from the coast and entrance were under the dystrophic status.

根据调查区水体富营养化的评价结果，在辽河口口门附近海域和靠近辽东湾东岸的海域，水体呈富营养化和中等营养水平，在远离海岸的海域，水体呈贫营养状态。

In the dissimilar melon breeds, it was different to hormones because of genotypes and endogenous hormones. In a same treatment, the different exhibitions of the induced process were resulted of self-conditions in different explants, including the level of hormones endogen, nutrition, and so on.

不同甜瓜品种在发生不定芽时对激素的需求是不同的，因其基因型和内源激素水平而异；6-BA是诱导甜瓜品种"白兰瓜"发生不定芽的有效激素，添加IAA不利于"白兰瓜"的不定芽诱导；同一处理中，诱导过程中的的不同表现是由不同外植体的自身状况导致的，包括外植体的内源激素水平，营养水平的差异等。

But contemporary student dine freely,resulting in al structuce inconsequently ,hypoalimentation finally.

但是当代大学生饮食方面随意性大，易导致膳食结构不合理而降低营养水平，使其营养不良。

A single-factor experiment was designed to research the effect of nutrition level on body weight of multiparous sows during gestation through investigating the effect of gestation nutrition on the reproduction performance of multiparous sows in subsequent 3 parities and based on regression analysis of feed intake as well as lactation weight loss and reproduction performance during gestation.

摘要采用单因子试验设计，通过对妊娠期不同营养水平连续3胎经产母猪生产的研究，建立妊娠期采食量与泌乳损失及繁殖性能等之间关系的回归方程，研究妊娠期不同营养水平对经产母猪体重变化的影响。

The activitys of Super Oxide Dismutase, peroxidase and Multiple Displacement Amplification of Ceratophyllum demersum L raised rapidly in the late of experiment, and the maximum value of MDA of Ceratophyllum demersum L in the eutrophic condition was 5 time higher than that in the medium nutritional condition, implied that Ceratophyllum demersum L has been stressed in the middle nutritional condition.

金鱼藻超氧歧化酶活性、过氧化物酶活性和丙二醛含量在试验后期上升速度加快，且富营养水平下金鱼藻MDA质量分数的最大值是中营养水平下最大值的5倍，表明在中营养水平下金鱼藻已经受到明显胁迫，而在富营养水平下受到胁迫更为显著。

The results showed that during the 45 days experimental time the fresh weigh of Myriophyllum spicatum L, Hydrilla verticillata L and Cerato-phyllum demersum L were 0.92 g, 0.27 g, 1.11 g and 0.56 g, 0.41 g, 0.87 g in medium nutritional condition TN 1.86 mgL^(-1; TP0.087 mgL^(-1) and eutrophic condition TN 2.47 mgL^(-1; TP0.16 mgL^(-1), respectively. The largest single plant biomass of Myrio-phyllum spicatum L and Ceratophyllum demersum L in in middle nutritional condition were over 39% and 22% higher than those in eutrophicated condition, but that of Hydrilla verticillata L was less than 51%, which shown that Myriophyllum spicatum L and Ceratophyllum demersum L grow better than Hydrilla verticillata L in middle nutritional condition.

研究结果表明，在45 d的培养过程中，狐尾藻、轮叶黑藻和金鱼藻在中营养TN1.86 mgL^(-1； TP0.087 mgL^(-1)和富营养TN2.47 mgL^(-1； TP0.16 mgL^(-1)水平下的单株最大生物量分别是0.92、0.27、1.11、0.56、0.41和0.87 g，狐尾藻和金鱼藻在中营养水平下单株最大生物量分别较富营养水平下高出39%和22%，而黑藻在中营养水平下单株最大生物量较富营养水平下低了51%，表明狐尾藻和金鱼藻在中营养水平下的生长较黑藻好。

The diversity index of rotifers was the highest observed. The results show that the higher the trophic level of the lake, the higher the density diversity index of rotifers in definite trophic level range (from oligotrophic to mesotrophic).

轮虫类的多样性指数最高，并且当湖泊在一定的营养水平范围内（贫营养型向中营养型过渡）时，轮虫的密度多样性与湖泊的营养水平呈现相同的变化趋势。

Appropriate nutrient supply could keep higher ZT content at initial stage and higher ABA, JA and IAA content and lower GA content at middle period, which could satisfy the demand of important hormones in every stage of tuberization and keep GA/ABA and GA/JA at reasonable levels during tuber formation.

而合理营养水平供给，保持了前期较高水平的ZT含量，中期较高的ABA、IAA、JA含量和较低的GA含量，保证了块茎发育各时期对重要激素的需要，GA/ABA和GA/JA在块茎发育各时期也保持在合理的水平。

The anatomical structure of root, content of nitrogen and phosphrous, and the activities of peroxidase, superoxide dismutase and catalase of Vallisneria spirolis in oligotropher, mesotropher, eutropher and hypertrophic solutions were investigated with static experiments.

为了解水体富营养化对苦草的胁迫作用，通过静态模拟试验，比较了不同营养水平（贫营养、中营养、富营养、重富营养）培养的苦草根的组织解剖结构、植株氮、磷含量和3种抗氧化酶(POD、SOD、CAT)活性变化。

With the increased phosphorus supply, the net photosynthetic rate at saturated light, leaf area ratio, and the concentration of nitrogen and phosphorus increased in both species, and the biomass allocation of A. crenata to propagule also increased. So it was indicated that the increased phosphorus supply could facilitate the growth and reproduction of these two species.

结果表明：随磷营养水平的增加，两种植物在饱和光下的净光合速率和叶面积比升高，各器官的氮浓度和磷浓度均有所增加，其中朱砂根对繁殖器官的投入也增加，表明磷营养水平的增加能够促进其生长和繁殖。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。