Characteristics of Soil Microbes in Reclaimed Mine Soil of Chai-He Zinc-lead Mine Wasteland Microbial characteristics of Hordeum brevisubulatum silage and screening for lactic acid bacteria with high fermentation performance Microbial characteristics of straw-amended degraded soils in central Tibet and its effect on soil fertility Microbial eco-characterization and its restoration in copper reclaimed wasteland in red soil area of China Ⅱ. Effects on soil microbial characteristics and community structure