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以安新地区高速公路边坡坡面农业土壤为研究对象,通过分层取样的方法,对不同深度土壤的pH、有机质、碱解氮、有效磷和速效钾含量进行对比分析,探讨高速公路对周边不同深度土壤肥力的影响。结果表明:边坡不同深度农业土壤的有机质、碱解氮、有效磷、速效钾含量不同,调查范围内的土壤质地以粉砂质粘壤土为主,以壤质砂土为辅。高速公路对边坡不同深度土壤有机质含量的影响最大,其次是有效磷,影响最小的是速效钾,pH也受边坡不同深度土壤的影响。由此可见,安新地区高速公路能够对边坡不同深度土壤的肥力状况产生一定的影响。
Taking the agricultural soil on the slopes of the highway in Anxin area as the research object, the soil pH, organic matter, available nitrogen, available phosphorus and available potassium in different depths were analyzed by stratified sampling method, and the expressway pairs Influence of soil fertility at different depths around. The results showed that the content of organic matter, available nitrogen, available phosphorus and available potassium were different in agricultural soils with different depths. The soil texture in the survey area was dominated by silty clay loam and loamy sandy soil. The expressway has the strongest influence on soil organic matter content at different depths of the slope, followed by available phosphorus, and the least affected is the available potassium, and the pH is affected by the soil with different depths. Thus, Anxin highway can affect the soil fertility of different depths of slope.