深入研究土壤中氮素的残留和移动有助于明确、解释或监测农田氮素淋失的过程。以土壤无机氮测试为主要手段，通过设置不同的田间试验处理，分析农民传统施肥下冬小麦/夏玉米轮作条件下氮素的累积迁移特征。结果表明，农民习惯施肥处理冬小麦/夏玉米轮作地土壤中残留的氮素以硝态氮为主，小麦生长季土壤硝态氮积累量在90.13~426.97 kg/hm2，玉米季为67.96~204.32 kg/hm2，存在潜在淋失的风险。除因作物不同生育期吸收不同外，N肥施用量、灌溉量等都是决定其季节动态变化的主要因素。进一步研究需寻求合理的水肥管理模式，以提高氮肥利用率，减少氮素流失造成的非点源污染。

The research on the soil nitrogen (N) accumulation and transfer can be useful for understanding, explaining, or monitoring the process of nitrate leaching. Using soil inorganic N testing in different field treatments as main research method, this paper analyzed the soil N accumulation and transferring characteristics under the peasants' traditional fertilization in winter wheat/summer maize rotation fields. Results showed that NO3--N was the dominant N style remained in the winter wheat/summer maize rotation field. The soil NO3--N accumulation for conventional treatment ranged from 90.13 kg/hm2 to 426.97 kg/hm2 during the winter wheat growth period, and from 67.96 kg/hm2 to 204.32 kg/hm2 during summer maize growth period, respectively. The NO3--N accumulated in the soil which couldn’t be consumed by crop may be at potential risk of N leaching. Moreover, the paper indicated that besides of the crop consumption, the amount of N application and irrigation were all the main factors affecting the seasonal dynamic variation of soil N accumulation. Further research need to seek rational fertilization managements for improving N efficiency, reducing the agricultural non-point source pollution caused by N leaching loss.