How are sediment load in river? It is the objective mark for soil erosion in the valley.
河流输沙的情况如何，是最为客观反映该流域内土壤侵蚀状况的标志。
The variations of runoff and sediment load of the basin are caused mainly by human activities.
流域内水沙变化主要是人类活动引起。
The variation of river sediment load is considerably affected by rainfall and underlying surface.
河流输沙量的变化受流域降水和下垫面影响很大。
The released flow from reservoirs carries less sediment load of bed material than pre? dam periods.
建坝后水库下泄水流挟带的床沙质含沙量减少，坝下游河床出现冲刷。
According to the spectrum analysis, the sediment load also fluctuated at the periodicity of 3a and 10a.
根据功率谱分析，入海泥沙还存在着3年和10年左右的周期性波动。
Therefore it also brings out new river-trained theory of design sediment load and integrated regulation of water-sediment.
开始蓄水拦沙运用 ，水库严重淤积回水迅速上延 ，引发设计输沙量和水沙综合调节治河新理论。
The parameter of the model is decided and a computing program that suits to the river with the different sediment load is given.
确定了高含沙河流模型的参数，给出了适用高低含沙河流的计算程序。
Even though these rivers carry a significant sediment load in suspension, the density of the sediment-laden water is rarely at or above the density of seawater.
尽管这些河流带着大量悬浮的颗粒，这带有沉淀物的水的密度仍仅仅达到或者低于海水的密度。
In the construction of barrage diversion works on alluvial rivers with heavy sediment load, complete systematic experience and design criteria are still lacking.
在平原多沙河流上修建引水枢纽，缺乏较系统完整的经验和指导原则。
Periodical analysis showed that abrupt change of sediment load happened in 1968 and 1984, which divided the variation process of river sediment load into three stages.
中国主要河流入海泥沙还具有明显的三个阶段变化特征，即分别在1968年和1984年前后发生了突变。
But the land use structure and reclamation index will not vary obviously with an increase of population, therefore, the sediment load from the river basins will not decrease greatly.
但是，由于人口的增加，土地利用结构与垦殖指数都不会有明显的变化，所以流域的产沙不可能有大幅度的减少。
In the stage of planning silt dam system, the main task of hydrological computation is to design rainstorm, design flood and sediment load and other important characteristic parameters.
淤地坝系规划阶段水文计算的主要任务是计算设计暴雨量、设计洪水量和输沙量等重要特征参数。
In addition, the runoff and sediment load exhibits an obvious decrease tendency in recent years, but it is possible that sediment yield may increase sharply under a same intensive rainstorm.
近年来窟野河水沙量有显著减少的趋势，但存在稀遇暴雨下的增沙可能。
On the basis of observation and survey datum carried out in small watershed where is or not been mining, the influence of coal mining and related human activities on runoff and sediment load.
利用布设在开矿与非开矿小流域的观测和调查资料，对比分析了开矿对小流域径流、泥沙的影响。
The quantitative variation of runoff and sediment load in the basin of the Middle Yellow River due to the effects of hydro projects and water conservation measures was suggested as a current result.
为了各方面应用的参考，作为阶段性成果，提出了黄河中游水利水保工程减水减沙的定量数据。
The modern sediment is an important storehouse of the nutrient salt and pollutant in lakes. Under proper conditions, these internal contamination load sources can cause the eutrophication of lakes.
现代沉积物是湖泊营养盐和污染物的重要储藏库，在一定条件下，这些内源污染负荷可能成为水体富营养化的主导因子。
The hydrology and water quality of runoff events were measured on gauging station and the runoff plots in the watershed and the rules of runoff, sediment, nitrogen and phosphorus load were analyzed.
在流域出口建立卡口站，进行基于过程的汛期水文水质全面监测，同时在流域内设立径流小区，分析了径流事件中径流量、沉积物量、氮和磷负荷规律。
The coefficient is fitted from calculating the sediment diffusion coefficient by suspended load model.
通过悬沙模型反求泥沙扩散系数的方法来拟合系数。
Based on sediment transport experiments, the interaction between flow and sediment movement is analysed and the problems of grain resistance and bed load transport on plane movable bed are discussed.
本文在输沙实验的基础上，从研究水流结构着手，分析了水流和泥沙之间的相互作用关系，讨论了动床沙粒阻力和底沙输移规律。
Lastly, studies transportation characteristic of bed load sediment of upstream end before vegetation dam. Preliminarily clear sand-binding mechanism of vegetation "flexible dam".
最后对植物坝前上游段推移质泥沙的输移特性进行了研究，初步探明了植物“柔性坝”的固沙机理。
The channel sedimentation comes from three parts, i. e. the suspended sediment, high sediment layer, and bed load.
航道淤积由三部分构成：悬沙、推移质和底部高浓度含沙层。
The similarity criteria for designing the sediment models for plain sand-bed rivers include similarity of flow, bed load and suspended load.
认为平原细沙河流的泥沙模型设计所遵循的相似准则应包括水流运动相似、推移质运动相似和悬移质运动相似。
The formulas of velocity distribution, flow resistance and bed load transport rate are obtained, in which the flow and sediment movement are considered simultaneously.
本文还导得动平床情况下的流速分布公式、阻力公式和输沙率公式，使动床的水流运动和输沙过程得以联解。
After comprehensive harnessing the outside pollution had been effectively controlled, the endogenous pollution which was caused by polluted sediment would be become main nutritional load.
经综合治理其外源污染得到有效控制后，内源污染可能成为湖泊营养物的主要负荷。
The nearby beaches may supply sediment for the embayment during storm surges, by causing bed-load and suspended-load transport of the beach material towards deeper waters.
胶州湾沙滩供沙的主要机制是通过风暴潮期间强烈的动力作用，使沙滩沉积物以悬移质、底移质形式向深水区扩散或搬运。
A method is proposed for calculating the bed suspended load ratio of transport rate both uniform and non uniform sand in coast sediment movement as well as for calculating that of channel deposition.
提出了海岸泥沙运动中均匀沙和非均匀沙输沙率推悬比和航道淤积推悬比的计算方法。
A sediment transport model of bed load that interacts with 3d turbulent flow was developed.
开发了与全三维紊流模型连接计算的泥沙模型。
Based on the study of sediment transport under the actions of tidal currents and wind waves a mathematical model of suspended load and bed load for Yangtze estuary is developed.
摘要通过对长江口径流、潮流和波浪共同作用下的泥沙运动规律的研究，开发并建立了长江口全沙(悬沙和底沙)数学模型。
Sediment transport similarity is a postulate for model of suspended load.
水流输沙相似是悬沙模型必须满足的基本条件。
This paper mainly discusses the distributional characteristics of the breaker flow and the suspended load sediment in the coastal breaker area.
本文主要讨论近岸破波区破波水流和悬移质泥沙分布特征。
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