鄂尔多斯伊金霍洛旗能源开发区土壤状况研究

Study on Soil Condition in Yijihuoluo Energy Development Area of Erdos City

通过选取不同土地利用类型下典型土壤样点进行土壤养分研究调查,实验室处理测定土壤酸碱度、有机质、全氮、全磷、全钾、土壤含盐量等6个因子,综合分析土壤养分现状和发展情况。研究结果表明,伊金霍洛旗能源开发区土壤有机质、土壤全氮量、土壤全磷量均呈现随土壤剖面深度增加而含量逐步降低的趋势,土壤全钾量保持相对稳定;土壤有机质、土壤全氮量、土壤全磷量在不同土地利用类型中差异性显著,土壤全钾量在不同土地利用类型中差异性不显著;有机质含量属于土壤肥力状况的评价标准中＂稍缺＂、＂缺＂的类型;全氮含量大部分处于6级水平,即＂极缺＂,急需大量补充;从全磷含量来看,均处于4-5级水平,即＂稍缺＂或＂缺＂,应补施磷肥;全钾含量比较均匀,差异不大,均处于2级水平,即＂稍丰＂的类型,比较理想。

This article selects the typical soil samples under different land use types to conduct soil nutrient research,soil p H,organic matter,total nitrogen,total phosphorus,and soil salinity were determined. Soil nutrient status and development was analyzed. The research results show that the soil organic matter,total nitrogen and total phosphorus are presented gradually reduce with the increase of the depth of soil profile content,total potassium remained relatively stable; soil organic matter,total nitrogen and total phosphorus amount show differences in different land use types significantly,total potassium show no significant differences in different land use types; organic matter content in the condition of the soil fertility evaluation in the standard is ＂ a bit short＂ or ＂ short＂; most of total nitrogen content is at level 6,the＂very short＂,be badly in need of a large number of supplement,from the point of total phosphorus content,are at level 4 to 5,namely ＂ a bit short＂ or ＂ short＂,should fill phosphate; total potassium content is evener,all at level 2,namely ＂ a bit rich＂ type,ideal.