藻类的
- 与 藻类的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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By considering the trait of the artery and anabranch of the Three-Gorges reservoir and analyzing the environmental elements influencing the growth of the algae, we improved on thenutrition dynamic model of the algae"s growth, carried on computer numerical value simulating on the evolvement process of the eutrophication of the Wujiang River, the Hanjiang River and the Three Gorges reservoir by cell mapping algorithm and revealed the dynamics action and mutation forms in the process of the valleys" algae blooms and the relationship between the major elements influencing the algaes growth and the model surge function.
本文结合三峡水库干、支流水体环境特点,通过对影响流域水体藻类生长的环境因素进行分析,改进藻类生长营养动力学模型,并利用胞映射算法对乌江、汉江和库区流域富营养化演化性态进行了计算机数值模拟和仿真分析,揭示流域水华发生过程的动力学行为、混沌性态和流域水质中主要藻类生长控制因子与模型振荡函数间的关系。
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It"s considered that the algae blooms control function in the algae"s growth dynamics model is influenced mostly by the water temperature, sun illumination, water flow speed and the concentration of the nutriment in water. A function including the four elements was built. By using cell mapping algorithm and contacting with the practical water condition of the Wujiang river and the Hanjiang river we analyzed and computed the algae blooms in the two areas and found the result was very near to the practical result. And we found that the ascend of water temperature and the descend of the water flow speed will contribute to the growth of algae and the nutriment is the substance basis of the algae blooms but not the only element. It must be under the condition of condign water temperature, enough sun illumination, slow water flow and abundant nutriment that algae blooms may break out unexpectedly.
本文认为藻类生长营养动力学模型中的水华爆发控制函数主要受水温、光照强度、水流速和营养盐浓度的影响,构建了包含水温、光照强度、水流速和营养盐浓度的水华爆发控制函数,通过对乌江、汉江的水华爆发进行胞映射分析,得到的计算结果与实际监测非常吻合,并认为水温升高和水流速下降将有利于藻类生长,营养盐是水华爆发的物质基础,但不是唯一因素,必须在适宜的水温、光照、缓慢的水流和充足的营养盐条件下,藻类才可能出现突发式的"疯长",即水华爆发。
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Volvocales An order of the Chlorophyta containing motile unicellular algae (e.g. Chlamydomonas), colonial forms (e.g. Gonium), and coenobial forms (e.g. Volvox).
团藻目:绿藻门下的一个目,包括运动性单细胞藻类(例如:衣藻属 Chlamydomonas)、群体形态的藻类(例如:盘藻属 Gonium)、群落形态的藻类(例如:团藻属 Volvox)。
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"Algae, algal bloom: Proliferation of algae due to excessive release of nitrogen and phosphorus."
藻类;藻类繁盛:由于氮和磷的过度排放而引起的藻类大量生长。
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Since algae is a common pond problem, plant one bunch of Anacharis for every two square feet of pond surface to control the buildup of algae-loving nutrients.
由于藻类是一种常见的池塘问题,植物之一Anacharis每两束池塘表面平方英尺,以控制藻类建设爱好营养素。
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The site also provides links to related Academy of Natural Sciences resources such as an algae image data database, algae water quality indicator page, and freshwater autecology data.
本网站还提供了其它有关的链接,包括藻类图片数据库、藻类水质指示物、淡水个体生态学数据等。
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The biomarkers such as the n-Alkanes, the isoprenoids, the terpane, and cholestane were detected through GC-MS analysis. Based on the study of the biomarkers, the biological evolution during Permian and Triassic can be divided as three stages, namely, the mixing source stage of low biota such as thallose and advanced plant in late Permian (below bed 63), the stage of low biota such as thallose in the boundary transitional layer (bed 63-69) and the mixing source stage of advanced plant and low biota such as thallose in early Triassic (above bed 69). What's more, the second stage near the boundary transitional layer can be subdivided into 4 stages. The stages of biota evolution is close related with sedimentary environment changing and the boundary transitional layer.
利用GC—MS分析技术,在陆相地层中检测出正构烷烃、类异戊二烯烷烃、萜烷和甾烷类生物标志化合物并根据生物标志化合物和特征值研究,将二叠系—三叠系生物演化划分为三个大的阶段,即晚二叠世的菌藻类低等生物与高等植物混源阶段(63层以下),界线异常层的菌藻类低等生物阶段(63-69层)和早三叠世高等植物与菌藻类低等生物混源阶段(69层以上),界线附近异常层的第二阶段又进一步细分为4个次一级阶段,生物演化阶段与沉积环境变化及界线异常层具有非常密切关系。
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Were used; for filter-eeding experiment, the alga used was Nitzschia closterium, and the experimental temperatures were 20, 23, 26, 29℃.Results show that the feeding selectivity of small-ized bay scallop and the oyster increase with algae size:when the algae increased from 4.35m to 11.6m, the feeding rate of bay scallop increased from 4.21%to 11.0%and that of the Pacific oyster from 0.81%to 3.15%.
结果表明,海湾扇贝和太平洋牡蛎的小贝的摄食率随藻类规格的增大而增加;而大贝则表现出明显的差异,海湾扇贝对中等规格(=5.55—5.79m)的藻类、太平洋牡蛎对小规格(=4.35m)的藻类具有较高的选择性,表明相同条件下两种贝类对海洋浮游植物群落结构产生不同的影响。
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The study area covers 4 mines producing sclerotia algal type coal in Hunyuan,Shanxi Province.the study combined both coal petrologic and geochemical methods indicated that the sclerotia algal coal is physically and chemically different from humic coal apparently,the forming environment is mainly controlled by pH,Eh and organic content,in which Pila Alginite and Reinschia Alginite are highly dominated.
运用煤岩学和地球化学方法,对中国山西浑源等 4个典型的菌藻类煤进行了综合研究,结果表明,菌藻类煤在物理、化学组成和特性上与腐植煤有明显的区别;其形成环境主要受 p H、Eh值和有机质含量的制约,其中皮拉藻和轮奇藻具有含量高、生存时间长的特征;并在此基础上对菌藻类煤作了成因分类
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3The ratio of TN:TP of the water treatment system ranged from 5.3~20.6,which satisfied with growth need of filamentous periphyton to effectively absorb nitrogen,phosphorus contaminants.
3丝状周丛藻类处理系统的进水TN:TP介于5.3~20.6,达到了藻类生长所需的适宜范围,从而促使丝状周丛藻类较好地吸收污水中的氮、磷污染物。
- 推荐网络例句
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Fancy gold-plated dangling earrings with facetted White Opal crystals.
花式镀金悬垂耳环与facetted白欧泊水晶。
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This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.
本文选取石家庄市初中生物教师作为研究对象,运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查,调查结果发现,石家庄市初中生物教师这一群体普遍存在职业倦怠,情感枯竭程度偏高,成就感偏低,去个性化程度最为严重。
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In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).
在一天中的各个时刻,总体说来,中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1);白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1);中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。