LAND SUITABILITY ANALYSIS FOR BIOCHARCOAL FOREST RECLAMATION USING AHP-BASED METHOD IN POST-MINING LAND OF PT. BUKIT ASAM TBK
The nation’s forest land area has continued to decline over the period of 2011-2018. The decreasing amount and quality of land is called land degradation. Mining activities are one of the main causes of forest land degradation. PT. Bukit Asam Tbk, as one of the largest coal producer companies in Ind...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/50705 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | The nation’s forest land area has continued to decline over the period of 2011-2018. The decreasing amount and quality of land is called land degradation. Mining activities are one of the main causes of forest land degradation. PT. Bukit Asam Tbk, as one of the largest coal producer companies in Indonesia, always pays attention to the environment in every aspect of its activities. PT. Bukit Asam has 10 environmental management programs as a reference in planning each stage of mining, one of them is developing and utilizing local plant species and other productive plants, which in this case is in the form of reclamation using energy plants. This is in line with the government's commitment in developing renewable energy (EBT) as the national priority. The success of reclamation activity is determined by the choice of plant species. So, it is necessary to analyze the land suitability of the study area and along with the plants. The results of the identification of the characteristics of the post-mining land in the Timbunan Pit 3 Banko Barat of PT. Bukit Asam Tbk Tanjung Enim shows that the study area has altitudes ranging from 5 - 100 meters above sea level, land slope ? 75o, rainfall of 2,531.13 mm/year, air temperature of 30oC, land acidity (pH) level 4.71, and loam soil. The plants analyzed included sea sengon (Paraserianthes falcataria), johar (Senna siamea), eucalyptus (Melaleuca cajuputi), nyamplung (Calophyllum inophyllum), and red kaliandra (Calliandra calothyrsus). Land suitability classes in sengon, johar, nyamplung, and red calliandra plants are included in marginal suitable classes (S3), while land suitability classes in eucalyptus plants are quite suitable classes (S2). Also, the application of AHP method is used for tackling multi-attribute decision-making problems, that is land suitability. Based on the study, height is the most important priority variable with the percentage of 24.23%, meanwhile pH is the least priority with the percentage of 3.95%.
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