Tuesday, April 30, 2013
Exhibit Hall
This study was carried out to obtain the basic data for selecting the cultivatable bioenergy crops in reclaimed lands. The experimental plots consisted of the mixing with solidified sewage sludge plot (SS50), the covering with solidified sewage sludge plot (SS100), and the original reclaimed land plot (ORL) on reclaimed land for the intended landfill in Sudokwon Landfill Site Management Corporation (SLC). The growth of bioenergy crops (Geodae 1, Miscanthus sacchariflorus, and Phragmites australis) and soil chemical properties investigated in each experimental plot during 3 years (2010, 2011, and 2012). Plant height was highest in the Geodae 1 grown at plots treated with solidified sewage sludge. The growth of bioenergy crops cultivated in both SS50 and SS100 were also better than in ORL. Geodae-Uksae 1 which showed an excellent adaptability on reclaimed land treated with the solidified sewage sludge has considerably higher biomass than those of other bioenergy crops (M. sacchariflorus and P. australis). It was speculated that soil chemical and physical properties on reclaimed land used in this study were improved by the application of solidified sewage sludge. The results from this study indicate that Geodae-Uksae 1 is the most suitable biomass feedstock crop for bioenergy productions, and the solidified sewage sludge may be possible to utilize as a soil cover materials for cultivation of bioenergy crops in reclaimed land.