野外估算土壤对径流侵蚀的敏感性通常十分昂贵 ,也很花费时间。有几位学者曾研究指出 ,土壤的这种敏感性与测定较为简便的表层团聚体稳定性相关。由于团聚体稳定性与侵蚀产沙这种相关性是在模拟降雨条件下用过筛土样实验分析得出的 ,还存在很多疑问 ,我们研究的目的就是证明该 Field estimation of soil sensitivity to runoff erosion is often very expensive and time consuming. Several scholars have pointed out that this sensitivity of soils is related to the stability of surface aggregates that is relatively simple to measure. Since the correlation between aggregate stability and erosion and sediment yield is derived from experimental analysis of sifted soil samples under simulated rainfall conditions, there are still many questions to ask. The purpose of our study is to prove that