微量养分是土壤中含量很低而植物生长又不可缺少的营养物质,是土壤重要的肥力资源。黄河中游地区严重的水土流失,不仅损失了土壤氮磷钾等常量元素,也使宝贵的微量养分大量被冲刷。本文依据我们近年来的研究成果,阐述侵蚀土壤微量养分的流失现状以及控制流失的措施,为改善微量养分缺乏的状况,提高作物产量提供依据。 Trace nutrients are very low levels of nutrients in the soil and plant growth is indispensable, is an important soil fertility resources. Serious soil erosion in the middle reaches of the Yellow River not only loses constant elements such as nitrogen, phosphorus and potassium in the soil, but also makes a lot of valuable trace nutrients washed away. Based on our research results in recent years, this paper describes the status quo of soil erosion of eroded soil and measures to control the loss, and provides the basis for improving the status of micro-nutrient deficiencies and increasing crop yield.