一维坡面土壤侵蚀数学模型研究  

Study on One-Dimensional Mathematical Model of Slope Erosion

作　　者：李文杰[1] 王洁[2] 张帅帅[2] 

机构地区：[1]重庆交通大学国家内河航道整治工程技术研究中心,重庆400074 [2]重庆交通大学省部共建水利水运工程教育部重点实验室,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2015年第1期72-77,共6页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：重庆市教委科学技术研究项目(KJ120406);重庆市科委自然科学基金项目(cstc2013jcyj A30003);交通运输部应用基础研究项目(2014329814310)

摘　　要：依据水沙运动过程的力学机理,将坡面水文模型和侵蚀产沙模型嵌套,构建了一维坡面侵蚀产沙数学模型,模型的水文模块涵盖了植被截留、蒸散发、入渗、地下水和地表水运动过程,侵蚀产沙模块则模拟了雨滴溅蚀、坡面流侵蚀以及坡面径流的输沙过程。利用径流小区径流和泥沙实测资料对模型进行检验,结果表明:水文模块的模拟精度较高,侵蚀产沙模块也能合理地计算坡面产沙量,整体效果较好。A one dimensional model of slope erosion and sediment yield was established by combining the hydrological module and soil erosion and sediment yield module,according to the dynamical mechanism of hydrological and soil erosion processes. The processes of interception,evapotranspiration,infiltration,groundwater and overland flow were simulated in the hydrology module,and the sediment module simulated the raindrop splash detachment,overland flow erosion and sediment transport processes. The whole model was verified by the measured data of runoff plot and sediment. The simulation results indicate that the hydrological module is relatively precise and the soil erosion and sediment yield module simulates the sediment yield reasonably,so the overall effect is better.

关 键 词：水利工程 坡面 水文过程 侵蚀产沙过程 一维数学模型 径流小区模拟 

分 类 号：TV143.4[水利工程—水力学及河流动力学]