对近代黄河三角洲上有代表性的土壤剖面进行偏光显微镜、扫描电镜、透射电镜观察.结果表明,土壤结构发育很差,暗色矿物较多,骨骼颗粒仍保持着冲积形貌.土壤孔性不好,很少形成良好的通气孔隙.土体中碳酸盐聚集明湿,铁、锰形成物也较多,说明土壤发育处于初始阶段,其土壤抗蚀力弱,易退化,故在开发利用中应引起重视. The representative soil profiles of modern Yellow River Delta were observed by polarized light microscope, scanning electron microscope and transmission electron microscope.The results showed that the soil structure was poorly developed with more dark-colored minerals and the skeleton particles still maintained the alluvial morphology.The soil porosity was not good , Rarely formed a good ventilation pores.Carbonate accumulation in the soil is clear and wet, iron, manganese formations are more, indicating that soil development is in its initial stage, the soil erosion resistance is weak, easy to degenerate, so in the development and utilization Should pay attention.