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All Journal Jurnal Hutan Tropika
Noorhamsyah Noorhamsyah
Politeknik Pertanian Negeri Samarinda

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Karakteristik Lahan Pascatambang Batubara di Loa Janan, Kalimantan Timur : Characteristics of Post-Coal Mining Land in Loa Janan, East Kalimantan Kiamah Fathirizki Agsa Kamarati; Noorhamsyah Noorhamsyah; Laode Muh Asdiq Hamsin Ramadan; Adelia Juli Kardika; Deka Asmananda Saputra
HUTAN TROPIKA Vol 20 No 1 (2025): Volume 20 Nomor 1 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i1.20621

Abstract

Coal mining activities have a significant impact on land degradation, including loss of topsoil, changes in soil physico-chemical properties, and decreased fertility. This study aims to analyze the soil chemical properties of post-mining land in Loa Janan sub-district, Kutai Kartanegara Regency, which will be used for revegetation activities.  The research method used composite soil sampling at three depths of 0-10 cm, 10-20 cm, 20-30 cm on a 50 m × 50 m plot, then analyzed in the laboratory for pH, C-organic, N, P, K, and CEC parameters. The results showed that the soil was acidic at 4.80-4.91 due to pyrite oxidation, with very low C-organic content of 0.88-1.07%, N content of 0.09 - 0.11% very low-low criteria, P content of 0.01%, K content of 0.02-0.04% with very low criteria respectively. Soil CEC is also categorized as low at 14.67-16.38 me/100g due to the lack of organic matter. This condition is also affected by high rainfall which triggers nutrient leaching. This study recommends liming, adding organic matter, and balanced fertilization as rehabilitation strategies to improve soil fertility.