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of runoff
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  径流
    (3)The variation of road erosion rate can be divided into three stages during which the variation of erosion rate with rainfall process is great from the commence of soil erosion by runoff to 20 min,and from 40 min to the end of runoff erosion processes,and is relatively steady from 20 min to 40 min.
    (3)道路侵蚀率变化过程可分为3个阶段:径流侵蚀开始至20min及40min至侵蚀过程结束,侵蚀率随降雨过程的变化较大,20~40min之间基本稳定;
短句来源
    The results of runoff scouring experiments with a slope range of 3° -30° show that the average flow velocity increased with the discharge of flow and slope gradient and the formula is V=0.096S0.37Q0.13,the slope gradient has bigger effect on velocity than discharge.
    结果表明:坡面径流平均流速随坡度和流量的增加而增大,且坡度对流速的影响大于流量。 其关系式为:V=0.096S~(0.37)Q~(0.13)。
    According to the result of simulated runoff experiment in laboratory, the Effective Depth of Interaction (EDI) of runoff with soil mineral nitrogen is analyzed and the methods to confirm EDI of fertilization experiments and underutilization ones are proposed.
    利用室内模拟降雨试验,初步探讨了径流与土壤矿质氮素的有效作用深度(Effective Depth of Interaction,EDI),对施肥和不施肥试验分别提出用拐点法和反推法确定EDI。
    Studies on Random Simulation of Runoff in China
    国内径流随机模拟研究
短句来源
    Analysis on Causes of Runoff and Sediment Variation in Weihe Basin Based on Hydrological Model
    渭河流域产流产沙模型及径流泥沙变化原因分析
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  “of runoff”译为未确定词的双语例句
    Analysis of Runoff and sediment Variations in Qingjianhe River
    清涧河水沙变化分析
短句来源
    Discussion on the Effect of Comprehensive Harnessing and Prevention Measures of Soil and Water Loss──According to the Analysis of Runoff and Sediment Variations in Xishui River Watershed
    论水土保持综合治理作用及防治措施──以昕水河流域的水沙变化为例
短句来源
    Analysis of Variation of Runoff and Sediment in Yanhe River
    延河水沙变化分析
短句来源
    Study on Process of Runoff and Sediment Yield in Artificial Grassland on Simulated Rainfall Condition
    模拟降雨条件下人工草地产流产沙过程研究
短句来源
    Inquiring into the Method of Calculating the Benefits of Runoff and Sediment Reducing by Soil and Water Conservation Sloping Measures
    水土保持坡面措施减水减沙效益计算方法探讨
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  of runoff
Following the principles of runoff-collecting forestry and applying the forest structure investigation results, the authors developed a formula to calculate appropriate density for forests on the basis of different diameters at breast height (DBH).
      
This technique is used to construct a model of runoff transformation for fragments of the Volga basin.
      
Methods of the use of radar information in applied hydrology (in particular, for calculation of runoff probability) are developed.
      
The anthropogenic components of runoff dynamics from drained fields are calculated.
      
However, some components of the total runoff into the Arctic Ocean feature distinct and fairly complicated disturbances in the homogeneity of runoff variations.
      
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In order to investigate the rule of soil erosion and sediment transportation in basins of the upper Yangtze river,the Lin stream,a tributary of the middle Jialing river,has been selected as a typical basin to be analysed and studied.Based on the data of rainfall,\runoff and sediment transportation obtained from site investigation,field test and observed from 1960 to 1991,equations for calculating the sediment amount and the maximum sediment discharge have been established respectively by using single-factor...

In order to investigate the rule of soil erosion and sediment transportation in basins of the upper Yangtze river,the Lin stream,a tributary of the middle Jialing river,has been selected as a typical basin to be analysed and studied.Based on the data of rainfall,\runoff and sediment transportation obtained from site investigation,field test and observed from 1960 to 1991,equations for calculating the sediment amount and the maximum sediment discharge have been established respectively by using single-factor correlation analysis and multi-factor regression analysis.With reference to the principle of the instantaneous unit hydrograph of runoff and on the basis of the linear hour-invariant system,the model of instantaneous unit hydrograph of sediment transportation has been established.The hydrograph of sediment discharge at the basin exit section can be obtained by means of convolution of the unit hydrographof sediment transportation and the net soil erosion of a time interval.The model has been verified by using data from other basins.

为了探讨长江上游流域水土流失及泥沙输移规律,选取嘉陵江中游的支流李子溪为典型流域进行了分析研究。在实地调查、野外测验及应用1960年~1991年实测降雨、径流、输沙资料的基础上,利用单因子相关分析和多因子回归分析,分别建立了输沙量、最大输沙率计算方程。在此基础上,参照径流瞬时单位线原理,以线性时不变系统为基础,建立输沙瞬时单位线模型。通过输沙单位线与时段净侵蚀量的卷积得到流域出口断面的输沙率过程,最后由其它流域实测资料对模型进行了验证。

According to the theory of conceptural model of coupled simulation.the paper applies thecoupled model of runoff and sediment of a basin into the evaluation of water and sediment reduction benefits through soil conservation measures. First of all,It devides various measures intotype of water reduction (or type of storing water and retaining sediment) and type of vegetation.then use the model to evaluate separately the benefits of water and sediment reduction caused byusing the two kinds of measures and...

According to the theory of conceptural model of coupled simulation.the paper applies thecoupled model of runoff and sediment of a basin into the evaluation of water and sediment reduction benefits through soil conservation measures. First of all,It devides various measures intotype of water reduction (or type of storing water and retaining sediment) and type of vegetation.then use the model to evaluate separately the benefits of water and sediment reduction caused byusing the two kinds of measures and the total benefits of water and sediment reduction. It isshown through the evaluation of benefits of soil conservation measures used in Heifangou watershed that the method is rational and each result of separated evaluation tallies with the actual situation. Comparing the observed value with the calculated individual flood yield and sediment production modulus, the relative value of the total absolute error is 20. l% and 20. 4% respectively.

根据耦合模拟概念性模型理论,把流域水流泥沙耦合模型应用于水土保持措施减水减沙效果评估之中。首先把各类措施划分为减水型(或蓄水拦泥型)和植被型,然后利用模型对这两种类型措施引起的减水、减沙效果及总的减水减沙效果分离评估。通过对黑矾沟流域水土保持措施效果进行评估,其结果表明,该方法较合理,分高评估的各项结果也较符合实际情况。其中,计算的次洪产流量和产沙模数与实测值对比,其总绝对误差的相对值分别为20.1%和20.4%。

Based on statistical analysis of observed data of experiment of water and soil runoff plots at Xifeng soil andwater conservation station from 1964 to 1980,it is proved that there is a very close corelation(y=aH ̄b)betweenindividual rain fall erosive modulus and depth of runoff,which is a power funetion,The unit individual runoff depth(KW)was as soil anti scour index which was used to evaluate the faetors affecting soil anti scourability.

通过对西峰水保站1964~1980年径流小区观测资料的统计分析,结果表明:次暴雨侵蚀模数与径流深之间以幂函数相关为最好(g=aH ̄b)。笔者以单位面积、单位径流深的冲刷量均值(kw)做为描述土壤抗冲性的指标,并对其影响因素进行了分析。

 
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