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本文利用室内人工降雨模拟装置，通过坡面小区试验，初步分析了不同雨强条件下黄土性土壤养分流失的规律。结果表明：土壤养分主要是以不溶态的形式随泥沙迁移，随径流迁移的可溶态养分很少；不同形态的养分在泥沙中有富集现象；养分流失量与雨强成正比；同一雨强条件下，土壤流失量与养分流失量呈显著的正相关关系。
In this paper, indoor artificial rainfall simulator was used to analyze the law of nutrient loss of loess soil under different rainfall intensity through slope plot test. The results showed that: soil nutrients mainly migrated with sediment in the form of insoluble, and there were only a few soluble nutrients migrated with runoff; nutrients of different forms were enriched in sediment; the amount of nutrient loss was directly proportional to rainfall intensity; Under the same rainfall intensity, there was a significant positive correlation between soil loss and nutrient loss.