查询词典 algal

It is shown from the assessment results that (1) both the TN and TP fluxes discharged from the Changjiang River to the Changjiang River estuary sea area increased continuedly, the DIN concentration in the sea areas increased continuedly, and the Si concentration decreased continuedly, which resulted in the significant changes in N/P/Si ratios;(2) the chlorophyll a concentration in the sea areas increased continuedly, and the significant changes in community structure of phytoplankton occurred;(3) the species and biomass of benthos declined greatly, and the bottom oxygen-poor water area increased significantly;(4) the range and occurrence frequency of red tide events in the sea areas increased greatly, and the algal toxic infection events of mussel were frequently found in the sea areas.

结果表明，长江向长江口海域输送总氮和总磷通量持续增大，长江口及其邻近海域无机氮浓度持续增高而硅浓度持续下降，并由此导致N/P/Si与比值的显著变化；该海域叶绿素a浓度持续增大，浮游植物群落结构也发生了显著变化；该海域底栖生物种类和生物量都大大减少，底层水低氧区面积也显著扩大；该海域赤潮事件无论是规模还是频率都大大增加，藻类毒素DSP/PSP贻贝传染事件也时有发生。

Evidence of emergence including sabkha dolostone, algal mat, bird-eyes and fenestral structure, mudcracks and crustose limonite has been found in the top of the Changhsingian reefs in Ziyun, Guizhou province.

贵州紫云长兴期生物礁顶部存在的出露证据有：（1）形成于萨勃哈蒸发环境的白云岩，（2）藻纹层沉积，（3）鸟眼和窗格构造，（4）干裂缝和褐铁矿风化壳，等等。

Naphthalene and its derivatives perhaps derived from the dealkylation of macromolecular with cycle diterpenoid skeleton in algal cells during thermal evolution process. These macromolecular break down to form alkylnaphthalene with different long alkyl chain.

萘及衍生物可能是藻体中具环状二萜类骨架的大分子在热演化过程中发生去烷基化作用生成，藻体中具长链烷基环状二萜类骨架化合物在热演化过程中烷基发生断裂，生成烷基链长度不等的烷基萘。

Fresh algal extracts prepared in 0.5 M HCl were neutralised, purified on a SPE column (RP-18, Merck), lyophilised in the presence of 1 mM dithiothreitol to prevent the formation of disulphide bridges and stored at -/20℃.

食藻提取物中拟定0.5米盐酸被瓦解，纯化的固相萃取柱（RP-18， Merck），lyophilised，在场的1毫米二硫苏糖醇，以防止形成二硫键桥梁和储存在-/20℃。

Much oxygen was evolved in the course of H〓 production. Sodium dithionate and DCMU make the system anaerobic, but H〓 production didn't increase, even decreased. By addition of sodium acetate, glucose, heteroauxing in the course of illumination and Fe, Ni in the course of algal growth, the H〓 production increases by P.

采用强还原剂、PSⅡ抑制剂虽然可使体系处于厌氧状态，但产氢效率并无提高，甚至下降；光照产氢过程分别外加碳源NaAc、促生长剂IAA，藻体培养过程中补充Fe和Ni的无机物均能使扁藻产氢的效率有所提高。

The organic laminae in the argillaceous limestone and dolomitic mudstone of lower Cretaceous are abundant in Jiuquan basin, but it′s heterogeneity is obvious that mainly shows that the difference of laminar algal contents are very large between the same formation and different areas and same well and different depth.

酒泉盆地下白垩统纹层状泥质白云岩和白云质泥岩中有机纹层结构发育，但非均质性很强，主要表现在相同层位不同地区及同一钻井不同深度藻纹层的含量悬殊。

When consumers are excluded from the general rock surface, algal crusts are overgrown by foliose algae and sessile invertebrates.

清除岩石表面的消费者后叶状藻类与其它固着无脊椎动物的种数就超过皮壳状藻类

Algal crusts typically dominate all low zone rock surfaces,and most other sessile species (invertebrates and foliose algae) occur in holes and crevices.

壳状藻类在低潮带岩石表面占优势，其它的固着生物(叶状藻类与固着无脊椎动物)占据洞穴和狭缝。

This paper deals with the effect of N-1, 2-dimethylpheny1-N-methyl formamidine hydrochlorideon algal community structure in model pond ecosystem s of 3m3 within 90 days.

0mg／L的浓度范围内，单甲脒农药对模型池塘生态系统中的浮游植物群落结构有明显影响。

The harmful algal blooms has been global questions.In the case of much break out of HAB in China sea this research is done. Under the experiment conditions, the ecological growth properties of Gymnodinium spp.

首先在实验室条件下对裸甲藻的生态学生长特性进行考察，然后从有毒赤潮藻细胞(裸甲藻、链状亚历山大藻)提取毒素，使用高效液相色谱进行定性、定量分析。

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