摘要：土壤养分含量是土壤肥力的重要指标，是提高作物产量的重要物质基础，不过土壤养分含量受多种因素的影响，其影响的主要因素包括成土母质、成土过程、生物气候因素和施肥及农业利用方式，尤其是人类活动，对其含量产生直接的关系。本文通过对青河县16个沙棘地块的田间采样分析，以0～10cm、10～20cm、20～30cm、30～40cm土层及离树20cm、30cm、50cm为采样点，得出了土壤中有机质、碱解氮、速效磷、速效钾的含量及垂直变化及水平变化规律。研究结果表明，所研究土壤pH在7．55～7．9范围内，呈微碱性；速效钾含量总体为中等水平，沙棘需钾量随土层及距树距离较稳定；速效磷含量比较低，且随土层加深而减少，而与离树距离远近关系不大，说明沙棘对磷需求不大；碱解氮含量随土层加深而减少，离树距离越远越少；有机质含量随着土层由上而下基本呈上升趋势，而随距树距离增大而减少。%The soil nutrient content is an important index of soil fertility and crop production is the important material foundation, but the soil nutrient contents is influenced by many factors, including the influence factors of soil, biological climate factors and fertilizer and agricultural use, especially in its content, human activities have a direct relationship. Based on qinghe county sixteen seabuckthorn plot sampling analysis, the field to 0-10cm, 10-20cm, 20-30cm, 30-40cm, soil and the tree for sampling 30cm, 50cm. The soil organic matter, alkali-hydro nitrogen, phosphorus and phosphorus content of rapidly-available potassium and vertical variation and variation in xinjiang, the level of soil nutrient division standard, analyzes the research of seabuckthorn soil nutrient. The results show that the research on soil pH value range, 7.55-7.9 alkaline, Rapidly-available potassium content for the medium level, seabuckthorn overall needs with soil and potassium from tree distance is stable, Rapid- ly-available phosphorus were low, rapidly-available phosphorus were decreased with soil deepen, and not from the tree of distance, seabuckthorn on phosphorus requirement, alkali-hydro nitrogen content decreased with the soil deepen, tree farther is less, soil organic matter content with down the basic shows ascendant trend, and decreases distance from the tree. In the deeper soil magnetism of organic matter content is higher, the farther away from the tree.
