Abstract
<p>Illegal gold mining activities create mine pits, taillings, stressed vegetation and unvegetated land. The aims of this study were to identify and to develop spatial model of land degradation and water pollution caused by illegal gold mining activities in Raya watershed, West Kalimantan. The spatial land degradation model was developed by multiplication the score of mine age and type of mine tailings, while the scores for water pollution was based on the results of spatial distribution analysis of the water’s total dissolved solids (TDS) and Hg concentration levels in Lake Serantangan. Vegetations of the degraded area showed nutrient deficiency and toxicity symptoms. Based on the NDVI (normalized difference vegetation index), the degraded area generated a value range of 0.1-0.6. Mine land in the study area were classified as rather degraded (29.33%), degraded (28.70%), and severe degraded (41.97% of the total 4,551 ha area). While, 65.87% or 83 ha of the Lake Serantangan area was classified as severely polluted based on the water’s concentration of Hg and TDS. The accuracy of the spatial model developed was 88.30 and 82.57% for land degradation and water pollution, respectively.</p><p><br />Keywords: Illegal gold mining, land degradation, spatial model, water pollution</p>
Highlights
Aktivitas pertambangan emas tanpa izin menyebabkan terbentuknya lubang tambang, tailing, vegetasi tercekam dan lahan terbuka
Tingkat kerusakan lahan di areal penelitian diklasifikasikan agak rusak (29.33%), rusak (28.70%) dan sangat rusak (41.97% dari total luas 4,551 ha), sedangkan 65.87% atau 83 ha areal perairan Danau Serantangan diklasifikasikan sangat tercemar berdasarkan kadar Hg dan total dissolved solids (TDS)
Using the USGS Landsat 8 Product. http://Landsat7.usgs.gov/Landsat8_Using_Product. php (diakses 12 November 2013)
Summary
Dalam penelitian ini digunakan peralatan GPS Garmin 76 CSX, kamera dijital serta perangkat lunak ArcGis 9.3, Global Mapper 13, Envi 5 dan Erdas 9.1. Bahan yang digunakan meliputi citra Landsat 5 tahun 1992, Landsat 7 tahun 2002 dan Landsat 8 tahun 2013 part 122 row 59 serta data sekunder terkait lokasi penelitian
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
