采煤塌陷地复垦土壤质量研究进展

土地复垦是补充耕地的重要措施，同时也是改善煤矿区生态环境的主要途径。该文对复垦土壤质量进行了综述，主要对土壤重构的方法；重构土壤的物理、化学性状的变化；重构土壤生物活性等方面进行分析。目前土壤重构的方法分为充填重构和非充填重构，非充填重构包括土地平整、修筑梯田、挖深垫浅、深沟台田等方法；充填重构根据充填材料的不同分为粉煤灰、煤矸石、河湖泥和垃圾充填。重构土壤的理化性状的变化主要集中在土壤容重、含水率、结构和主要养分变化的研究上，在粉煤灰、煤矸石充填的土壤上有重金属污染的可能性。部分研究证明重构土壤的微生物

Research progress of reclaimed soil quality in mining subsidence area

Land cultivation of arable land is not only an important supplementary measures, but also the main measures to improve the ecological environment of the mine area. The quality of reclamation soil, mainly including the methods of soil restructuring, the change of physical-chemical features and the organism activation, was analyzed at present, there are two ways to restructured soil: filling and infilling reclamation. Infilling reclaimed includes land leveling, terracing, deepen and pad shallow and so on. According to the different infilling material, filling reclamation is classified into fly ash, waste pile, river and lake mud and rubbish filling. The chemical feature change of the restructured soil mainly focus on the research on the changing of soil bulk, water content, structure and chief nutrients. The filling soil by fly ash and waste pile has the possibility that polluted by heavy metal. Some research verifies that the microorganism activation of restructured soil is worse than that of big field soil. On the basis of present research, this research proffers the problems existed in the soil reclamation studies at present and the emphasis in the furth study.