【作者】 孙海运；

【导师】 胡振琪；

【作者基本信息】 中国矿业大学（北京） ， 土地资源管理， 2010， 博士

【摘要】 以邹城市矿区复垦土壤为研究对象,选择了5个复垦年度对其压实特征、理化性状和综合土壤质量进行了详细分析,同时探讨利用当地蘑菇生产废料对复垦土壤质量的改良效果。结果表明复垦土壤表层紧实度以复垦1年的最大,随着复垦年限增加逐渐减少。表层土壤有机质、碱解N、有效P低于未塌陷土地,而速效K明显高于未塌陷土地,复垦土壤的pH值、EC明显高于未塌陷土地。施用蘑菇废料表层土壤的紧实度、容重较低,随着施用时间加长,土壤表层的紧实度逐步增加。蘑菇废料可以提高土壤含水量、粘粒、有机质、N、P、K等含量,降低土壤碱度、含盐量。蘑菇废料施用明显提高表层土壤微生物数量,特别是土壤细菌、真菌更明显。蘑菇废料的施用影响上层土壤质量,对下层土壤影响不大。更多还原

【Abstract】 Take mining areas in Zoucheng City as a case, reclaimed soil compaction characteristics, physical and chemical properties, synthetic soil quality were analyzed during the five years of land reclamation, while the reclamation effects with mushroom were discussed. The results showed that in the first year after reclamation, compaction of surface soil reached to the maximum, but decreased gradually. The content of organic matter, alkali N, available P was lower than that of the non-subsided land, while available K, pH value and EC value was significantly higher. Surface soil compaction and bulk density became lower with mushroom reclamation, but gradually increased along with the application time. Mushroom scrap could enrich the content of soil moisture, clay, organic matter, N, P, K and etc., while make alkalinity, salinity lower. At the same time, mushroom significantly improved the microbes in the surface soil, especially bacteria and fungi. The application of mushroom impacted much on the top soil quality but little on the subsoil.更多还原