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The purpose of the study was to determine the characteristics of chemical soil properties of coal mined land reclamation has been done in 5 years. The research conducted from September to November 2011 in the area under reclamation of coal mine PT Mahakam Sumber Jaya Tenggarong Seberang, Kutai Regency. The land has been reclaimed 5 years ago and planted with sengon and akasia. The research conducted include: the orientation phase, determining of research location, soil sampling, soil analysis at laboratory, data collection and the soil analysis. Result of the research showed that: 1. The state of soil at land formerly used for coal mines that have reclaimed for period of 5 years has chemical properties as follow: soil pH neutral, N total is very low, the content of organic C, available P, K+ and Na+ were low, the content of Ca+ + and CEC were moderate, C/N ratio, Mg+ +, and K available were high, and base saturation was very high.2. Fertility status of the soil chemistry at coal mined land during 5 yearswas classified as moderate.
Key words: Used Coal Mined Land, Reclamation, Soil Chemical Properties
