Abstract
Bangka is the largest tin producing island in Indonesia. Sand tin tailing may have 95% sand, C-organics less than 2%, cation exchange capacity less than 1.0, and its soil temperature may reach 45 o C. The objective of this research was to study the growth of ten selected local tree species in various planting densities and soil treatments on a barren tin-mine. The study aimed to identify agricultural techniques which the improved microclimate for those species, and enhanced natural recolonisation. A planting density of 10,000 seedlings ha -1 and legume cover crops gave the highest survival rate, cover, and litter production. It was suggested that higher planting density improved the microclimate faster. As Hibiscus tiliaceus, Ficus superba, Calophyllum inophyllum, and Syzygium grande had the highest individual survival and cover, and therefore show potential for revegetating sandy tin tailings.
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