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通过对鄂南第四纪红色粘土发育的棕红壤的人工模拟降雨试验，建立了不同覆盖水平下地表径流和硼流失的数学模型。研究表明：土壤含水量与产流时间（降雨开始至产生地表径流的时间）呈显著负相关，径流的产生与入渗速度主要受叶面积的影响，土壤容重对径流与淋溶作用影响不大；没有覆盖的土壤径流和硼流失量明显高于有植被覆盖的土壤，当叶面积指数接近和大于１时，累计径流量和累积硼流失量将趋于稳定；增加植被覆盖度，合理密植是减少水溶态硼流失，保持水土的重要措施。
Based on the artificial simulated rainfall experiments of brown red soil developed in Quaternary red clay in E’nan, a mathematical model of surface runoff and boron loss under different coverage levels was established. The results showed that the soil water content was negatively correlated with the runoff time (the time from the start of rainfall to the time when surface runoff occurred), and the runoff generation and infiltration rate were mainly affected by the leaf area. The effect of soil bulk density on runoff and leaching was not significant . The uncovered soil runoff and boron loss were significantly higher than those with vegetation cover. When the LAI was close to or greater than 1, the cumulative runoff and cumulative boron loss would tend to be stable. Increasing the vegetation coverage and close planting density was Reduce the loss of water-soluble boron, water and soil to maintain an important measure.