The concentrations of different phosphorus species in overlying water change seasonally.
上覆水中各形态磷浓度呈现明显的季节性变化。
With the improvement of water quality, metals could be released from sediment to overlying water.
在外源污染得到控制、水质得到改善的情况下,滇池沉积物会成为内在的金属污染源。
Pumping the salty water near the interface is efficient to decrease the salt concentration of overlying water.
抽排界面之上高盐分水体对降低水体盐分含量效果明显。
Submerge plant was an importance factor that affected the distribution of phosphorus between overlying water and sediment.
沉水植物是水体中磷在上覆水与底质中分配的重要影响因素。
If the most polluted sediment was not dredged, the overlying water quality could not be improved because of the releasing pollutants from sediment.
若疏浚深度不足以疏浚掉大部分受污底泥,则疏浚对于抑制底泥影响上覆水体水质的效果不理想。
The treatments all caused total phosphorus(TP) , total nitrogen(TN), and content of chlorophyll-a(Chl. A) in the overlying water obviously reduced.
种植沉水植物可使水体总磷、总氮、叶绿素a含量显著降低,且伊乐藻对总磷的净化效果优于菹草;
The warming would be more favorable to enhance the concentrations of TP and DRP in overlying water and porewater for the sediments rich of Fe-P and Al-P.
在高有机磷、高铁结合态磷、高铝结合态磷的沉积物中,随着温度的升高,上覆水中和层间水中DRP浓度会随之增加。
The results showed that chironomid larvae stimulated visible algal growth by increasing nitrogen and phosphorous release from sediment to overlying water.
结果表明,摇蚊幼虫能明显促进底泥中氮、磷的释放,而释放到水层中的氮、磷又容易被藻类吸收利用,从而促进藻类生长。
The concentrations of these elements in the pore water were much higher than those in the overlying water and showed a typical peak distribution with depth;
各种重金属元素在孔隙水中的浓度比上覆水体中的浓度高得多,且在孔隙水中随深度均呈现典型的峰型分布;
The nitrogen distribution and release to the overlying water and interstitial water through a series of large static simulating experiments were probed into.
通过大型静态土柱模拟实验,研究氮在上覆水和孔隙水中的分布特性和释放特性。
Nitrogen release characteristic of Dianchi lake sediment and the nitrogen nutrients concentration of overlying water body was studied through simulating cultivation.
通过模拟培养,研究了底泥氮营养的释放及上覆水体中氮营养的浓度变化特征。
The proportions of dissolved phosphorus, particulate phosphorus and phosphorus existing in the coarse particles in overlying water change significantly with content of SS.
河床上覆水体中溶解态磷、颗粒态磷及赋存于粗颗粒物上的磷所占比例皆随悬浮颗粒物浓度发生显著变化。
Samples of sediment, overlying water, pore water, and benthic invertebrate were collected at 13 stations along a typical municipal polluted river in the Pearl river Delta.
研究区域为珠江三角洲一条典型城市污染河道,采集了13个站位沉积物、上覆水、间隙水及底栖动物样品进行分析。
The main influential factors on the phosphorus behavior between the sediments and overlying water were also discussed based on the characteristics of municipal shallow lake.
另外还针对城市浅水湖泊的特点,对磷在湖泊沉积物与上覆水之间行为的主要影响因素进行了阐述。
The regenerated phosphate may be released to the overlying water and reprecipitated within the sediment as an authigenic phase, or adsorbed by other constituents of the sediments.
再生的磷可能释放到上覆水体中,或在沉积物中作为一种自生相而再沉淀,或被沉积物的其它组分所吸附。
Samples of overlying water, suspended particles and bed mud in the Inner Mongolia stretch of the Yellow River were collected systemically and their heavy metal element contents were analysed.
系统地采集黄河内蒙古段上覆水、悬浮物和底泥样品,分析其中重金属元素的含量。
After analyzed the mine geological and hydrogeological conditions of the mine area, considered that the mine water filling source is stratifugic water from overlying strata.
通过分析该矿区的矿井地质及水文地质条件,认为矿井充水水源为上覆地层的离层水。
Systematic physio-mechanical properties test and analysis, especially analysis of relationship between expansion rate, dry density, water content, and overlying pressure, are carried out.
本项工作系统地进行了膨胀土的物理-力学性质试验及分析,尤其是膨胀率与干容重和含水量及外覆压力关系分析。
Experimental results show that fine texture soil layer overlying coarse texture soil layer can markedly increase water-holding capacity and get some supplement of water after reaching field capacity.
实验结果表明,细粒土壤下垫有粗粒土壤时,上部细粒土壤的持水能力有明显的提高,可以超过最小持水量而得到若干补充水量。
Because of the complicated gas-water geochemical barrier formed by the involvement of surface water, the precipitation of uranium occurred in overlying aquifers to form uranium deposit.
在上覆透水层,由于地表水的参与形成复杂的气水地球化学垒,使铀沉积成矿。
Because of the complicated gas-water geochemical barrier formed by the involvement of surface water, the precipitation of uranium occurred in overlying aquifers to form uranium deposit.
在上覆透水层,由于地表水的参与形成复杂的气水地球化学垒,使铀沉积成矿。
应用推荐