runoff erosivity meaning in English
径流侵蚀力
Examples
- Research on rainfall - runoff erosivity factor of main city zone of chongqing
重庆市低温冷害的分类与指标及其时空分布规律研究 - Ii ) runoff erosivity reflects relationship of water erosion forces and sediment yield more directly than rainfall erosivity . it intergrated ability of runoff volume and flood peak on detaching soil and transporting sediment and is more reasonable than single runoff depth or flood peak volume
( 2 )以径流侵蚀力代替降雨侵蚀力来反映水蚀营力与产沙量的关系更加直接，而且综合了径流量与洪峰在剥蚀土壤和搬运泥沙能力，比单独运用径流深或洪峰流量更加合理。 - Relationship model among topography fractal dimension , runoff eroding power and sediment transport modulus was established after proposing topography fractal dimension as comprehensive quantitative index for topography by replacing rainfall erosivity with runoff erosivity . based on this model , relationship between watershed topography parameter and sediment yield were setup using the observed data from cha bagou watershed , together with parameter calibration
提出了以地形分维数作为地貌形态综合量化的指标，以径流侵蚀力代替降雨侵蚀力的思想，建立了模型流域地形分维数、径流侵蚀力与输沙模数之间的关系模型；在此基础上，应用岔巴沟流域实测资料，建立了流域地貌形态参数与侵蚀产沙关系模型，并进行参数率定和检验。 - Analyzed result on observed data shows that runoff erosivity and sediment transport modulus have a good power function ( y = mxn ) relationship . all the correlation coefficients of regression equation are bigger than 0 . 9 in different watershed and power exponent b is 0 . 4 - 0 . 65 , which average is 0 . 52 . and n is bigger as harness degree high
实际流域的观测资料分析结果表明：径流侵蚀力与输沙模数之间有很好的幂函数( y = mx ~ n )关系，回归方程相关系数均在0 . 9以上，关系式中幂指数n在0 . 4 - 0 . 65之间，平均为0 . 52 ，治理度越高， n值越大，而参数m与流域面积和治理度有关， m值随着流域面积的增大和治理度的提高而减小。 - It shows that topograhy fractal demension is reseanable in describing change of topography . based on this model and after introducing runoff erosivity factor , sediment yield model of watershed model was setup by using multi - regression analysis method . vi ) the relationship model between watershed topography parameter and
该关系模型以地形分维数为地形量化参数，以径流侵蚀力代表径流侵蚀土壤和搬运泥沙的能力，揭示了地貌形态因素和径流侵蚀力与输沙模数之间的内在关系;但此关系模型仅考虑了地形因子，还需考虑土壤、植被以及流域治理因素等综合影响。