S153.61 S157.1
国家“九五”攻关课题
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
The maths model of boron loss and runoff was created under different cover degrees by simulated rainfall on brown red soil derived from quaternry period red clay. The results show that the time of producing runoff is negatively related to s
曹凑贵 张光远.鄂南丘陵棕红壤水土流失及硼损失特征[J].华中农业大学学报,1998,17(1):