摘要
城市化和工业化进程加快,由降雨所产生的城市挖填方弃土和旱坡地水力侵蚀造成的水土流失越来越不容忽视。采用云南省昆明市西山区山洪预警监测区域内的13个监测点实测得到的降雨量数据作为分析基础,充分挖掘数据信息。通过对降雨数据的进行不同的曲线拟合分析,得到幂函数曲线拟合效果最好。结合对通用水土流失方程(USLE)的理解,提出降雨侵蚀预测力模型的乘法模型。研究建立的降雨侵蚀力R值估算模型,在一定程度可以满足水土流失预测、水土保持等方面的应用需求。
Due to the accelerated process of urbanization and industrialization,the water and soil erosion caused by soil disposal by urban excavation and soil erosion in arid slopes is becoming more and more important.The rainfall data obtained from 13 monitoring points in the mountain flood early warning and monitoring area of Xishan District of Kunming City,Yunnan Province are used for fully mining the information.Through different curve fitting analysis of rainfall data,obtained that the power function curve fitting effect is the best.According to the understanding of the universal soil erosion equation(USLE),a multiplication model of rainfall erosion predictive force model is proposed.The establishment of estimation model of rainfall erosion force R meets the application demand of soil erosion prediction and water and soil conservation plan.
作者
昌霞
刘赛娥
Chang Xia;Liu Saie(Yunnan land and resources vocational college,Yunnan,Kunming 650000,China)
出处
《计算机时代》
2019年第2期69-71,75,共4页
Computer Era
关键词
幂函数
拟合
降雨侵蚀力
乘法模型
power function
fitting
rainfall erosion force
prediction model
