Estimations with four existing calibration models showed that PM model underestimated while MBM 1 model overestimated the soil erosion rates very obviously,and both MBM 2 and MBM 3 gave similar and reasonable estimations.

• 文中采用 4种常用的~(137)土壤侵蚀模型估计研究区的土壤侵蚀速率 ；结果表明 ；PM模型明显低估了土壤侵蚀速率 ；MBM1明显高估了土壤侵蚀速率 ；MBM2 和MBM3估计的结果较为相近的合理结果 .