1)  interrill erodibility
细沟间侵蚀
1.
And then the correlation analysis between soil erodibility and interrill erodibility,rill erodibility,critical shear were carried in order to apply predicted models well.
为了更好的了解黑土区土壤剖面粒径分布以及可蚀性因子特征,本研究以东北典型黑土区鹤北流域为研究区,利用沉降法对不同土地利用方式下土层表面至母质的土壤样品进行粒径分布规律研究,并基于粒径及有机碳分布特征,计算了土样的可蚀性K值,最后对土壤可蚀因子K与WEPP模型中土壤的细沟间侵蚀因子(Inter- rill Erodibility)K_i、细沟侵蚀因子(Rill Erodibility)K_r和临界剪切力因子(Critical Shear)Tc进行相关分析。
2)  sheet flow erosion (interrill erosion)
片流侵蚀(细沟间侵蚀)
3)  rill
细沟
1.
Prediction of Hydraulics of Rills in Erosion Processes on Hillslope;
坡面侵蚀过程中细沟水流动力学参数估算探讨
2.
Scouring experimental study on rill erosion on the slope;
坡面细沟侵蚀的冲刷试验研究
3.
Study on dynamic mechanism of rills, shallow furrows and gully in the soil erosion chain;
土壤侵蚀链内细沟浅沟切沟流动力机制研究
4)  rill evolution
细沟发育
1.
The model could be used for simulating rill evolution processes on loess slopes, in which the rainfall and micro\|landform are corresponding to the disarranged input and the rills are corresponding to the regular output.
基于自组织理论的机理模型可以定量地预测坡面细沟发育的过程 ,而这些信息在过去只能依靠实验观测获得 。
5)  rill density
细沟密度
1.
The experimental data of the slope erosion are analyzed by stochastic theory and fractal geomety,and some quantitative descriptions for the slope pattern ofthe slope erosion are obtained according to the rill density and fractal dimension of the rills.
本文利用随机理论和分形几何学方法,对坡地侵蚀实验资料进行分析,以坡面细沟密度指标及沟系分维数对坡地侵蚀的平面形态进行了定量描述。
2.
Furthermore,the soil erosion of the slope was analysed by means of the rill density.
从分析细沟床面上切应力出发,在细沟全断面泥沙处于临界起动条件下,导出了细沟临界断面方程并讨论其水力几何要素的变化,进一步提出用细沟密度去分析坡地的土壤侵蚀程度。
6)  rill erosion
细沟侵蚀
1.
Simulation study on the dynamic rill erosion processes: model validation with laboratory experiments;
细沟侵蚀动态过程模拟室内试验和模型验证研究
2.
Simulation study on dynamic rill erosion processes: mathematical models and FEM formulation;
细沟侵蚀动态过程模拟数学模型和有限元计算方法
3.
Study on spatial and temporal characters of rill erosion on slope;
坡面细沟侵蚀产沙时空分布规律试验研究
参考词条
补充资料:侵蚀沟

侵蚀沟

为线形伸展的槽形凹地。是暂时性流水形成的侵蚀地貌,主要发育在半干旱气候带的松散沉积层上,在植被稀疏的缓坡地区,侵蚀沟可以发展得很快,使地形遭受强烈的分割,蚕食耕地,破坏道路,造成大量的水土流失。

侵蚀沟的形成与发展可分为以下几个阶段,细沟阶段;水流在斜坡上由片流逐渐汇集成细小的股流,在地表形成大致平行的细沟(宽0.5米,深0.1~0.4米,长数米)。由细沟进一步下切加深形成了切沟;切沟已有了明显的沟缘,沟口形成小陡坎,宽和深可达1~2米。切沟再进一步下蚀,形成了冲沟;冲沟的沟头有了明显的陡坎,沟边经常发生崩塌、滑坡、使沟槽不断加宽,冲沟深约几米至几十米,长约几百米,冲沟在我国的黄土高原特别发育。冲沟进一步发展,沟坡由崩塌逐渐变得平缓,沟底填充碎屑物,形成宽而浅的干谷称为拗谷。

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