Microorganism-plant combined remediation method suitable for open pit coal mine waste dump

The invention discloses a microorganism-plant combined remediation method suitable for an open pit coal mine waste dump. The method comprises the following steps: mixing grass seeds of leguminous plants and gramineous plants according to a sowing rate of 1:(1-2) to obtain a grass seed mixture, and sowing the grass seed mixture in the open pit coal mine waste dump from May to June. According to the method disclosed by the invention, the diversity of plants can be improved, soil improvement and plant growth can be promoted, secondary damage to the soil of the dump can be prevented under the condition that no exogenous chemical fertilizer is added, and the stability of an ecological system can be enhanced. 本发明公开了一种适于露天煤矿排土场的微生物-植物联合修复方法，包括将豆科植物和禾本科植物的草籽按照播种量1:(1-2)的比例混合，得到草籽混合物，将其在5-6月播撒在露天煤矿排土场。本发明公开的方法可以提高植物多样性、促进土壤改良和植物生长，在无外源化学肥料添加情况下，防止对排土场土壤造成二次破坏，增强生态系统的稳定性。