输沙模数 meaning in Chinese
modulus of sediment runoff
sediment runoff modulus
Examples
- The following conclusions were reached : i ) in different watershed , runoff depth and sediment transport modulus have power function ( y = axb ) relationship and the non - line regression equation can well simulate their relationship . parameter a and b can reflect difference of watershed harness degree
通过研究，取得如下结论： ( 1 )在不同流域内，径流深与输沙模数均成幂函数( y = ax ~ b )关系，其关系方程以非线性回归拟合结果比较好。 - 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。 - In harnessed watershed , a is smaller and b is bigger , but they are contrary in no - harnessed watershed . the flood peak volume modulus and sediment transport modulus is also power function relationship . but parameter a and b is different largely in different watershed and the relativity is not well than relationship between runoff depth and sediment transport modulus
参数a 、 b可以反映流域有无治理的差异，参数a在有治理或部分治理的流域内均小于无治理流域；参数b在有治理流域内则较无治理流域偏大；流域次降雨洪峰流量模数与输沙模数也为幂函数关系，但参数a 、 b在不同流域之间差别较大，其相关性不如径流深与输沙模数关系好。 - 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。