Temporal and Spatial Variation of Soil Microbes and Enzyme Activities in Iron Tailings under Natural Restoration and Plantation Soil Microbe Quantities,Microbial Carbon and Nitrogen and Fractal Characteristics under Different Vegetation Restoration Patterns in Watershed,Northwest Hunan Soil physical and chemical characteristics under different vegetation restoration patterns in China south subtropical area. Reclaimed soil properties and weathered gangue change characteristics under various vegetation types on gangue pile Response of Soil Quality to Artificial Vegetation Restoration Patterns in the Arid Area of Northern Weihe River Basin