ANALISIS PEMBENTUKAN TANAH DARI BATUAN PENUTUP OVERBURDEN PADA AREA REKLAMASI PT BORNEO INDOBARA GUNA MENDUKUNG KEBERHASILAN REKLAMASI SECARA BERKELANJUTAN

This study aims to analyze the process of soil formation on overburden material in reclamation area 2013 (9 years), 2015 (7 and 2018 (4 years) support success sustainable reclamation, relationship between planting age, morphology climate conditions that can affect overburden. The research was conducted at a coal mining company located Tanah Bumbu Regency, South Kalimantan Province. method used descriptive quantitative. Data collection done by making test trench taking profile data which includes topsoil thickness, intermediate layer, Soil texture, color, roots penetrated were also recorded analyzed. results analysis showed began occur 9th year (2013). indicator found lateral layer depth 40-60 cm is an with gray color. correlation strong acidity (pH) (r2 = 0,74). organic C elements 0,68). element N has very 0,92). next P2O5 having moderate 0,46) K2O had 0,75). chemical texture fertility status site low condition. concluded or 9, indicators such as appearance 20 - 40 cm, whereas no Climatic morphological accelerated because this wet condition leaching nutrients surface area. weathering soil, especially overburden, will cause plant enter bringing produced trees, undergrowth, litter