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The results of this study showed that the ability of the three aquatic plant species is more significantly to remove pollutants in summer and autumn, especially from June to September, is significantly superior to that in winter, the stage of aquatic plants grow more hearty is better than the stage plant grow more feeblish.

通过2006全年对成都活水公园人工湿地中三种优势挺水植物芦苇、香蒲、伞草所在塘床的进出水口的6个主要水质指标(pH 、DO、COD、BOD5、TP、TN)的逐月对比监测,探索不同植物种类对污水净化效率的影响。

Technically the redox potential governs wetland chemistry and redox is controlled by the kind of plants used and the hydroperiod.

从技术上讲,氧化还原反应是湿地中的主要化学反应,它受使用的植物的种类和土壤地区积水的时期控制。

The analysis of the fungal community similarity between different ecosystem-types showed that farmland soil and shelter-belt soil had the highest similarity, indicating that the soil moniliaceous hyphomycetes in this two ecosystem-types had more common species.

对不同生态类型土壤中淡色丝孢菌的相似性分析发现,农田和防护林带生境的相似性系数最大,说明这两种生境具有较多的共同物种;湿地和城市花园生境的相似性系数最小。

The vegetation can be classified into 4 vegetation type groups,7 vegetation types and 20 formations.Sparganium stoloniferum community and Menyanthes trifoliata community are first recorded in China.

湿地向农田等其他的土地利用类型的转变,在地区和全球尺度上都产生了很深刻的生态影响,对资源利用者来说也有显著的社会和经济影响[3]。

Among the economic crops, pachyrhizus leaf had the most remarkable treating effect, the COD treating capacity per day per unit area was 4.01g, that is, a 50% treating rate; the BOD treating capacity was 1.15 g, that is, a 35% treating rate; the TP treating capacity was 0.23 g, that is, a 16% treating rate; the TN treating capacity was 1.87 g, that is, a 74% treating rate; however, the treating effect decreased as the total amount of pollution entering this system increased by raising the water volume, which was mainly owing to the relatively short hydraulic retention time.

由水质试验结果显示,本系统所选用的作物处理生活污水成效极佳,优於一般湿地选用的植物,以及河滩地原生草种型态,其中以地瓜叶的处理成效最为显著,每日单位面积COD去除速率为4.01 g 、处理效率达50﹪;BOD去除速率为1.15 g 、处理效率达35﹪;TP去除速率为0.23 g 、处理效率达16﹪;TN去除速率为1.87 g 、处理效率74﹪,而以加大水量的方式,增加进入本系统之污染总量,其处理成效减低,主要原因受到水力停留时间较短影响,未来可以增加处理面积、水力停留时间加长、提高原水浓度为后续之研究方向,以达到增加本系统处理成效之目的。

Any of several perennial reeds of the genus Phragmites in the grass family, found worldwide in marshes and wetlands and having stems up to nearly6 meters(20 feet) long.

芦苇属禾本科禾本科中的一种芦苇属多年生的芦苇,在世界各地的沼泽和湿地都有发现,有近六米(合20英尺)长的茎

Based on Phragmites phenological data from 1987 to 1993 in Panjin wetland,the characteristics of the germination stage,leafing stage,flowering stage and fade stage of Phragmites were analyzed in this paper,The relationships between climatic factors and Phragmites phenologies were discussed.

基于1987~1993年盘锦湿地芦苇物候数据,分析了芦苇的萌动期、展叶期、开花期和枯黄期的物候特征,探讨了芦苇物候期与气候因子的关系,并利用2种积温模型模拟了芦苇的展叶期和开花期。

The absorption characteristics of three kinds of wetland plants,including Iris pseudacorus,Pontederia cordata and Scirpus validus,for removing nitrogen and phosphorus from wastewater resembling secondary effluent were studied by lab and pilot tests.

结果表明:短期内,各种湿地植物污水中氮、磷的吸收速率比较稳定,但在整个生长周期内,各种植物对氮、磷的吸收速率却有较大变化,4月份,水葱对氮、磷的吸收速率最大,8月份,梭鱼草对氮、磷的吸收速率最大。

Based on the 1992-2007 remote sensing images and field survey data, and by using the landscape ecology theories and the method of conversion matrix, the spatiotemporal dynamics and landscape pattern of Spartina alterniflora in Yancheng coastal wetlands were analyzed by GIS. The results showed that the total area of S.

基于1992-2007年的遥感影像和野外调查数据,在地理信息系统的支持下,应用景观生态学理论和转移矩阵方法,定量分析了江苏盐城滨海湿地外来种互花米草的时空动态及其景观格局的演变规律。

In this paper the following technology after UASB system was also discussed , artificial wetland is one of the most appropriate technologies . The new technology , which combines UASB and wetland , has the characters of low cost low energy demand and simply management, and suits our country townish wastewater treatment.

本文还对厌氧法处理小城镇污水的后处理工艺进行了初探,认为人工湿地是一种比较合适的后处理工艺,该工艺和厌氧生物法协同作用,是一种低成本、低能耗、低操作管理要求的污水处理新技术,适合于我国小城市的污水处理。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。