研究了徐州柳新采煤塌陷地充填复垦土壤的pH值和全氮全磷以及有效钾的的性质,并对复垦土壤的分类提出建议。结果表明,该区充填复垦土壤受地下水碱性影响严重;复垦土壤养分中氮和磷含量受影响较大;土壤养分变化受种植作物影响最大,其次是复垦时间长短;充填物性质在短期内对表层土壤性质无明显影响。建议在系统分类中增加复垦表层,扩充人为新成土亚纲的内涵,增设复垦人为新成土土类。 This paper studied the pH value, total N-total phosphorus and available potassium in the reclaimed soil at the subsidence area of ​​Liuzhou Coal Mining Company in Xuzhou, and proposed the classification of reclaimed soil. The results showed that the reclamation of soils in this area was seriously affected by the alkalinity of groundwater. The contents of nitrogen and phosphorus in reclaimed soil were greatly affected. The changes of soil nutrients were the most affected by the crops, followed by the reclamation time. In the short term, it has no obvious effect on the surface soil properties. It is suggested that the reclamation surface should be added to the system classification to expand the connotation of the man-made newly-formed soil sub-class and to add the reclaimed man-made soil into new soil types.