1Department of Soil Science, Faculty of Agriculture, UGM, Yogyakarta. 55281, Indonesia
Department of Soil Science, Faculty of Agriculture, University of Jambi, Indonesia
2Department of Soil Science, Faculty of Agriculture, Universitas Gadjah Mada, Yogyakarta. 55281, Indonesia
Misusing soil-forming materials and reconstruction methods changes soil body and soil properties of coal mine reclamation. This research was aimed to understand the factors causing degradation and chronosequence of reclaimed soil properties to formulate a proper model for coal-mine reclamation soil. The research was conducted by using systematic grid survey method. The soil sample for reclamation land was taken from layers and horizon of native soil. The results showed that soil body reconstructed with topsoil and subsoil on the surface layer has dark brown morphological form, organic carbon 1.702.40%, subangular blocky to blocky structures, percentage of micro-aggregate formed 6.1–10.3%, aggregate stability 5053.3%, bulk density 1.29–1.37 g cm−3, infiltration rate 1.66–4.67 cm hour−1, pH H2O 4.57–4.58, and SO4−2-soluble 92.5–240.3 mg kg−1. The body of reclamation soil which reconstructed with parent material and bedrock and differed among layers has fluctuate properties based on the layer composition and changes with a random pattern based on the age of reclamation.
Reclamation ages, Reconstruction methods, Soil materials, Soil properties
