对侵蚀问题的研究集中于细沟侵蚀上。
The study of erosion is focused on the rill erosion process.
随着细沟的形成，水流速度逐渐减小。
介绍了细沟形成的机理。
本文评价了量测细沟侵蚀量的填土法和容积法。
This paper estimates methods of measuring rill erosion amount.
细沟侵蚀过程中水流跌坑的出现是极其重要的一环。
It is a very important point of the appearance of flow drop pit during the process of rill erosion.
大坡度的水流速度变化揭示了细沟发育具有突发性特征。
The variation of flow velocity in high gradient reveals the paroxysmal characteristics of the development of rill.
细沟流流态的确定是进行细沟流水力计算时的先决条件。
It is the precondition for the rill flow hydraulic calculation to confirm the rill flow pattern.
细沟侵蚀是土壤侵蚀的重要方式之一，但定量研究困难很大。
Rill erosion is one of important erosion manners on the slope, while it is difficult to study quantitatively.
坡面侵蚀过程可以明显分为面蚀、细沟发育和细沟稳定三个阶段。
The soil erosion process on the slope was clearly divided into sheet erosion stage, rill erosion developing stage and rill erosion stable stage.
细沟间侵蚀量预报是整个坡面水土流失预报的一个重要组成部分。
Prediction of amount of soil erosion between rills is an important item of the prediction of soil loss on the slope surface.
径流集中导致过流断面土体发生剪切破坏，形成明显的水路和侵蚀细沟。
The concentrated runoff has caused shearing damage of flowing section soil and forming remarkable waterways and rill erosion.
测量结果表明无论土壤表面是细漫流或细沟流，用这种方法均可进行测量。
The results show that the method is feasible to measure the velocity of sheet flow, no matter the rill is formed or not.
通过对试验数据的回归分析，得到了细沟过流湿周同流量及坡度的经验关系。
According to the results, an empirical relationship of the rill wetted perimeter with the flow discharge and the slope gradient is obtained by the regression analysis.
模拟结果表明，细沟扩宽过程对坡度和坡面表土临界起动流速的变化十分敏感。
Simulation result also indicates that the rill width is affected both by slope gradient and critical detachment velocity of surface soil on the hill slope.
研究结果表明，降雨初期坡面以面蚀为主，细沟出现后，坡面侵蚀将加快加剧；
The results indicate that the main erosion type is sheet erosion at the beginning of the rainfalls, and serious erosion happens after rill erosion appeared.
细沟间侵蚀是指坡面上细沟未形成之前或细沟形成之后细沟间的土壤侵蚀过程。
Rill erosion refers to the soil erosion process taking place between rills before or after formation of rills on the slope surface.
自上到下侵蚀主要表现为片蚀、重力侵蚀、细沟侵蚀、切沟侵蚀、冲沟侵蚀、沉积。
From above to below, the erosion types ordinally are sheet erosion, gravitational erosion, rill erosion, gully erosion, sediment.
此盖玻片提供最大的透明度、优越的防腐能力和均匀的厚度和尺寸，没有细沟和油膜。
These cover glasses offer maximum clarity, superior corrosion resistance, and uniform thickness and size. They are free of striae and oily film. Circular.
本文设计并完成了一系列小规模细沟侵蚀冲刷试验，研究细沟侵蚀过程中的动力学规律。
This paper designed and finished a serial of small scale scouring experiments to study the dynamics in this process.
由于土壤细沟侵蚀的发生，WEPP模型低估了两种ESP土壤在大坡度情况下的坡度系数。
The WEPP model underestimated slope factor at great slope steepness for both ESP soils due to hill erosion.
提出了一种用细沟在坡面发生的位置和相应的水流特性来直接计算土壤临界抗剪切应力的方法。
A direct calculation method of the critical shear stresses was established through observing initial place of slope erosion arising and the characteristic of runoff.
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.
通过玻璃水槽试验和径流冲刷试验，研究了坡面径流的流速分布和坡面细沟侵蚀发生的临界条件。
Based on the experiment of glass flume and the experiment of runoff scouring, the runoff velocity distribution on slope and the critical condition of rill erosion were researched.
用一种沙壤土进行实验，测定了不同团聚体大小和坡度下细沟再生开始和停止所对应的临界水流量。
Experimental results were conducted for determining the flow rates at which rill formation starts and ends for each aggregate group and slope.
细沟的宽度和深度随雨强的增大而增大，产生细沟后侵蚀量将迅速增大，最大占总侵蚀量的91%。
Rill width and depth become bigger with rainfall intensity, erosion amount promptly enhances after rill appears, accounts for 91%.
当细沟扩宽侵蚀在小区片蚀中占主要成分时，小区的片蚀总量常表现出与坡度和表层土使用方式的明显关系。
It is shown that the total amount of erosion is closely related to hill slope gradient and type of land use.
通过不同坡度、不同流量的组合放水冲刷试验，对坡面细沟侵蚀发生过程中的坡面流水动力学特性进行了研究。
The hydrodynamic characters of runoff in the process of rill erosion were studied by using runoff scouring experiment under the different slope gradients and the different flow discharges.
通过不同坡度、不同流量的组合放水冲刷试验，对坡面细沟侵蚀发生过程中的坡面流水动力学特性进行了研究。
The hydrodynamic characters of runoff in the process of rill erosion were studied by using runoff scouring experiment under the different slope gradients and the different flow discharges.
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