Physicochemical Data of Soils in Qumalai County Undergoing Soil Amendment Experiments for Different Degradation Levels

Three degradation levels were determined in Qumalai County based on vegetation coverage, plant community composition, and bare land coverage, including mildly degraded, moderately degraded, and severely degraded alpine grasslands. Then, control plots and plots treated with different doses of soil amendments were set up in the soils of mildly, moderately, and severely degraded alpine meadows. The experimental treatments include 5 g/m ² and 10 g/m ² humic acid (F5 and F10 for short) (HA), 5 g/m ² and 10 g/m ² high molecular weight water absorbent resin potassium salts (B5 and B10 for short) (SAPs), and 5 g/m ² and 10 g/m ² Bacillus subtilis (J5 and J10 for short) (B. subtilis). The behavioral experimental treatments in the data table are listed as test indicator data.