中文摘要：

结合修正后的内梅罗指数,研究不同土地利用类型下泥石流滩地土壤肥力差异性特征,旨在为泥石流滩地的合理开发和利用提供依据.结果表明：泥石流滩地整体物理结构与肥力状况较差,“砂石化”现象明显;不同土地利用方式对土壤物理结构具有显著影响,但对土壤养分特性影响不显著;5种土地利用类型中,耕地和林地土壤理化性质较好,土壤孔隙度大小顺序依次为耕地＞林地＞近流通区荒地＞草地＞远流通区荒地.土壤综合肥力指数大小依次为耕地＞林地＞草地＞远流通区荒地＞近流通区荒地.

英文摘要：

In order to provide scientific basis for the reasonable development and utilization of debris flow,the soil fertility characteristics in different land use of the debris flow waste-shoal land was investigated by using the modified Nemoro index （Q）.The results indicated that the overall physical structure and fertility status were poor.The soil of debris flow waste-shoal land was stoned and sanded seriously.Different land use types had significant effect on soil physical structure,but had no significant effect on soil nutrient characteristics.Among the 5 types of land use,the soils of cultivated land and forest land had a better physicochemical properties,the soil porosities were in the order：cultivated land ＞ forest land ＞ circulation area wasteland ＞ grassland ＞ accumulation area wasteland.The soil integrated fertility indexes were in the order：cultivated land ＞ forest land ＞ grassland ＞ accumulation area wasteland ＞ circulation area wasteland.