不同土壤颗粒组成在水蚀过程中的流失规律

研究结果表明 ,土壤有机质和全氮与 <1 0μm土壤颗粒相关系数分别为 0 .63 1 4和 0 .6750 ,与 <1 μm粘粒的相关系数分别达到 0 .72 54和 0 .73 2 9;有机质和全氮在泥沙中的富集现象主要由侵蚀泥沙 <1 μm粘粒富集造成 ;坡度与侵蚀泥沙粘粒、有机质和全氮的富集率的相关系数分别为 -0 .983 2、-0 .93 95和-0 .81 46。

The results showed that the correlation coefficients of soil organic matter and total N with < 10 μm soil particles were 0.6314, 0.6750 respectively, the correlation of coefficients soil organic matter and total N with<1 μm were 0.7254, 0.7329, respectively. The enrichment phenomenon of the total N and organic matter caused by the enrichment of <1 μm particles. The correlation coefficients of slope gradient with clay particle, organic matter and total N in sediment were -0.9832, -0.9395 a...