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本文通过建立试验基地,针对张家港地区水稻作物进行了氮素随暴雨径流迁移规律和田面水中氮素含量在暴雨条件下含量测定试验,并且对不同径流量和地表水中氮素含量进行对比分析,得到以下结论:暴雨条件下地表水中氮素浓度的含量与径流量呈现出明显的相关关系;溶解态和悬浮态氮素浓度随径流的迁移特征存在显著差异。
In this paper, through the establishment of a test base, the experiment was conducted to study the effects of heavy metals on the runoff of nitrogen in paddy fields in Zhangjiagang region and the nitrogen content in surface water under rainstorm conditions. Comparing and analyzing the nitrogen contents in different runoff and surface water, The following conclusions are drawn: The concentration of nitrogen in surface water shows a significant correlation with runoff under rainstorm conditions; the dissolved and suspended nitrogen concentrations have significant differences with the migration characteristics of runoff.