To understand the reconstruction of soil physicochemical properties in the ecological restoration area of Zhashan in themulimining area,wemonitored soil nutrients,soilmoisture content,soil bulkdensity,soil temperature,and electrical conductivity.The results indicate that:① The nutrient content of soils in various mining areas is generallymoderate tohigh.The total nitrogen content in the soils ranges from 1.98 to 5.32g/kg,with overall richness.Except for the lower alkali-nitrogen content on the slope of theduosou Gongmamining area,the rest are relatively high,with the alkali-nitrogen content of Polyhymnia 3 reaching an exceptionally high average of 227.33 mg/kg.Total phosphorus in the soil is between 1.21～1.94 g/kg,generally in themedium to high range.The available phosphorus content in Jiangcang 2 and Polyhymnia 3 ishigh or extremelyhigh,ranging from 25.83 to 79.20mg/kg.Total potassium content in the soil is extremelyhigh,all exceeding 20 g/kg,while available potassium,except forduosou Gongma,is extremelyhigh in the othermining areas,ranging from218.33 to581.67mg/kg.Soil organicmatter is extremelyhigh,ranging from 87.68 to205.14 g/kg.Theduosou Gongmamining areahas lower total phosphorus,available phosphorus,available potassium,and organicmatter compared to othermining areas,with average values of 6.58mg/kg,148.83mg/kg,and 90.87 g/kg,respectively.② Soils in allmining areas are weakly alkaline,with platform soilshavinghighermoisture content than slope soils.③ Soil temperature and electrical conductivity in allmining areas show fluctuating increases.Soil temperature remained below 0℃ beforemarch 8 and above 0℃ after April 30,while soil electrical conductivity remained relatively stable before April 30.Soil nutrient status has improved through soil reconstruction in themining area.
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万方数据
