Experimental Study on Vegetation Restoration of Abandoned Land in Desert Steppe Nonferrous Metal Mine

Taking the mine dump in nonferrous metal as research object desert steppe Inner Mongolia, according to artificial remodeling of landforms and characteristics water soil erosion, vegetation restoration model tests on dumping site were carried out. The ecological effects four measures storage analyzed which including shrubs, shrubgrass, grass natural vegetation. results showed that compared with plant community, surface content three planting increased obviously, organic matter but change difference was not obvious. coverage shrub-grass 67%, aboveground biomass 132 g/m2. measure had stronger wind-proof soil-fixing ability than other measures, reaches 67% above-ground is Efficacy evaluation out by grey correlation method, Comprehensive benefit all reached higher value. most comprehensive measure, 0.68, smallest shrubs also 0.60. Three cloud be applied mining areas, best.