algae layer
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The paper fristly compared the fertile soil with the incinerated sterile soil on the number of micro-algae , soil pH value , soil organic matter soil available phosphorus and soil nitrogen.And then, the author put fertile soil, which included micro-algae, proportionally into sterile samples and cultivated them respectively under illumination condition (micro-algae can live and reproduce)and dark condition(micro-algae will die in some time).The above indices were measured in 0, 30, 60 and 90days respectively, The analyse of the interrelation between the change of micro-algae"s number and the changes of soil pH value, soil organic matter, soil available phosphorus and soil nitrogen indicated:Soil micro-algae which were native to fertile soil conld adapt to the changed circumstance and light acted as a decisive role to the distribution of soil micro-algae.Under dark condition,the micro-algae"s number declined gradually and went to zero in the end,while under illumination condition ,on the 90th day, the micro-algaes number of per gramme was 6-7 times more than that of the beginning.
本文首先对肥沃土壤与经高温焚烧后的贫瘠土壤中的微藻数量、土壤pH值、有机质含量、有效磷含量和全氮量进行比较研究,然后将包含微藻的绿化苗圃地肥土按不同比例接种进入贫瘠土样中,分别在光照条件和黑暗条件下进行培养,在0天、30天、60天和90天分别检测以上指标,比较有光条件和无光条件下,即有藻条件和无藻条件下贫瘠土样所发生的变化,并分别对微藻数量的变化与土壤pH值、有机质含量、有效磷含量和全氮量的变化之间做相关性分析,以评估肥沃土壤中的微藻接种进入贫瘠土壤后的生长情况以及对贫瘠土壤的改良作用。
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The main reasons were that the algae and organism in the water decreased the ability of removing pollutants by coagulations, the algae which grown again in the open sedimentation tank weakened the removal effect of algae by coagulation; because of the accumulation of algae and algae toxin in the filtration tank, the concentration of algae toxin in the effluent increased; by the function of fluid chlorine, the algae and organisms after the filtration will release microalgae toxin and produce a lot of byproduct such as microalgae toxin, sobomyl and so on, meanwhile, the chlorination produce considerable halide and halo-acetic acid and other disinfection byproduct.
主要表现在藻类和溶解性有机物的存在降低了混凝去除污染物的能力;藻类在露天平流沉淀池中再生长,抵消了混凝除藻效果;藻类和藻毒素在滤池中积累,导致滤后藻毒素升高;穿透滤池的藻类和有机物在液氯作用下,释放微囊藻毒素、土臭素和二甲基异冰片等胞内物质,同时生成数量可观的卤代烃和卤乙酸等消毒副产物。
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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。
- 更多网络解释 与algae layer相关的网络解释 [注:此内容来源于网络,仅供参考]
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algae layer:(高层泾原苔层下的)藻类层
"藻菌类","algae fungi;Phycomycetes" | "(高层泾原苔层下的)藻类层","algae layer" | "(地衣中的)藻层","algae layer;aglae zone"
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algae layer;aglae zone:(地衣中的)藻层
"(高层泾原苔层下的)藻类层","algae layer" | "(地衣中的)藻层","algae layer;aglae zone" | "灭藻剂;除藻剂","algicide"