大规模的水土保持措施实施以后,细泥沙入海通量的减少幅度要大于粗泥沙。
After the measures were taken of soil and water conservation, the decrease of the sediment flux into the sea in fine grain-size fractions was more than that in coarse fractions.
通过格栅以一定振幅不同频率的往复运动,在水体中造成均匀的紊动场,来研究紊动对细泥沙浆液絮凝结构的影响。
A uniform turbulence field with different intensities is generated in the body of water and is used to study the effect of turbulence on the rheo-logical behavior of the slurry.
本文首先提出了一个细颗粒悬浮泥沙的动力学判据。
A dynamic criterion of suspended fine sand-mud is given in the paper.
通过室内水槽试验,描述了波浪作用下细颗粒泥沙的起动现象。
The threshold phenomenon of fine sediment under wave action is described based on a flume experiment.
在长江口南汇东滩进行了现场水文泥沙观测取样,以探讨海岸盐沼植物的存在对潮间带细颗粒泥沙运动的影响。
Field experiments were undertaken to examine hydrodynamic effects of estuarine saltmarsh canopies on intertidal fine sediment transport of the Changjiang Estuary.
级配越宽,细颗粒泥沙所占的比重越大,则在同等水力条件下水流挟沙力越大。
The wider the sand graduation and the bigger the weight ratio of the fine sands, the bigger the sand carrying capacity of flow in the same hydraulic dynamic condition.
根据静水和动水条件下的细颗粒泥沙沉降试验结果,应用灰色模型分析中的关联度分析理论,分析了影响细颗粒泥沙絮凝沉降的主要因素。
Based on the test data under dynamic water and static water, main factors which influence the fine sediment flocculation are analyzed using the relative analysis theory of the gray model analysis.
细颗粒泥沙的絮凝或分散对土壤渗透性、土壤可蚀性有重要作用,是水土保持研究的重要内容。
Fine sediment flocculation and deflocculation play an important role in soil penetrability and soil erodibility, and are one of the primary contents of soil and water conservation.
铝类絮凝剂对细颗粒泥沙絮凝沉降有重要作用,常应用于浑水澄清、农业污水处理等研究中。
Aluminum flocculants have an important role in the flocculation and settling of fine sediment, and are often used to clear muddy water and treat agricultural waste water.
连续型影响因素对细颗粒泥沙絮凝沉降的影响是连续的,它们不仅影响絮凝作用发生,而且影响絮凝沉降强度。
The influence of the continuous type influencing factors is continuous. They not only influence the flocculation but also the settling strength of the floc.
细颗粒泥沙的絮凝-分散对土壤结构的稳定性,土壤中农用化合物的迁移以及侵蚀泥沙的输移、沉积有重要作用。
Flocculation and deflocculation of fine sediment play an important role in soil structural stability, agro-chemical compounds movement and eroded sediment transport.
本文首先阐述由环形水槽试验所得出的细颗粒泥沙动水絮凝的若干规律。
Some laws on hydrodynamic flocculation of fine sediments found in the circular channel test was elaborated at the beginning of the paper.
环形水槽是研究细颗粒泥沙的理想装置,但测沙技术的相对滞后极大地制约了环形水槽的使用。
The annular flume, which is an ideal instrument to study fine sediment, is restricted by the technology of sediment measurement.
动态土壤侵蚀包括依赖于空间与时间的土壤剥离、细沟的形成、水流中过量泥沙的沉积、沉积泥沙中细沟的再生等物理过程。
Dynamic soil erosion processes involve the spatial and time dependent processes of detachment, rill formation, deposition, re rilling from deposited sediment and scouring of rills.
黏性泥沙絮团的形成机理和沉降特性对河口海岸细颗粒泥沙运动规律研究具有重要作用。
The complicated fractal flocculation processes and settling behavior of cohesive sediment are very important to understand the cohesive sediment transport in estuaries and along coasts.
采用透气法,量测了细颗粒泥沙的比表面积。
In this paper, air permeability test has been conducted to determine the specific surface area of fine particle of sediment.
探讨雨滴打击下薄层漫流的输沙机理,为建立细沟间薄层水流泥沙输移预报模型提供理论依据。
This study had an important significance to set up the predicted model fallow overland flow on the Loess Plateau.
探讨雨滴打击下薄层漫流的输沙机理,为建立细沟间薄层水流泥沙输移预报模型提供理论依据。
This study had an important significance to set up the predicted model fallow overland flow on the Loess Plateau.
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