Based on the historical data of soil general investigation, the characteristics of nutrient distribution on the typical dark loessial soil profile and its historical evolution in recent 30 years were studied with the situ sampling method and the same determination methods as those of the historical soil general investigation. The results showed that the organic matter and total nitrogen content on dark loessial soil profile distributed as "S" type, and they decreased along with the increasing of soil depth. The distribution of total phosphorus content appeared as "mid - low" type, while the total potassium content was basically the same on the whole profile. As compared with those in 1980s, the content of organic matter, total nitrogen and total phosphorus in the cultivated soil layer of dark loessial soil in 2008 appeared an increasing trend, while their content in other soil layers had decreased to a certain extent. The total potassium content showed a decreasing trend on the whole soil profile. The average of C/N in the cultivated topsoil had increased.%利用土壤普查历史资料,采用原位采样及相同测定方法研究了不同时期典型黑垆土剖面的养分分布特征及演变趋势.结果表明:黑垆土剖面中有机质和全氮含量呈“S型”分布,均随土壤深度增加而呈下降趋势；全磷含量为“中低型”分布；全钾含量在整个剖面中基本趋于一致.与20世纪80年代相比,2008年黑垆土耕层有机质、全氮和全磷含量呈增加趋势,但在其他土层它们的含量均有不同程度的减少；全钾含量在整个土壤剖面均呈减少态势；耕层C/N平均值有所提高.
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