논문 상세보기
pp.10-16
SCB액비 처리에 의한 포플러 클론들의 생육특성을 조사한 결과, 생존율은 처리구와 무처리구에서 각각 95.0%와 92.5%로 양호하게 나타났다. 포플러 클론들의 평균 줄기 수는 처리구 및 무처리구에서 각각 11.8개와 11.5개로 나타났으며, SCB액비 처리구에서 현사시 72-31, Bonghwa1 및 Clivus 클론이 각각 17.1개, 14.5개 및 13.8개로 우수하게 나타났다. 평균 엽면적은 처리구 및 무처리구에서 각각 71.0 cm2와 52.3 cm2로 나타나 처리구가 35% 높았다. 포플러 단벌기 맹아림의 연평균 지상부 바이오매스 생산량을 조사한 결과, 처리구 및 무처리구의 연평균 바이오매스 생산량은 각각 8.5 ton/ha와 5.6 ton/ha로 나타나 처리구가 51% 우수하였으며, SCB액비 처리구에서 현사시 Clivus, 72-31 및 Bonghwa1 클론이 각각 15.2 ton/ha, 14.0 ton/ha 및 11.6 ton/ha로 우수하였다.
A short rotation coppice (SRC) refers to cultivation systems using fast-growing tree species with the ability to re-sprout from the stump after harvest. Harvest in SRC cultivation occurs in short intervals, 2-6 years, and management practices are more similar to those of agricultural annual crops than to forestry. The SRC for production of biomass for heat and electricity is considered a very promising means to meet the different targets set to increase the amount of renewable energy. This study was conducted to analyze growth characteristics and biomass production of poplar clones in the SRC under the treatment of slurry composting and biofiltration liquid fertilizer (SCBLF). The average survival rate of poplar clones at SCBLF treatment was 95.0% and that at control was 92.5%, respectively. The average number of shoot at the treatment was 11.8 ea/clone and that of control was 11.5 ea/clone. ’72-31’, ‘Bonghwa1’ and ‘Clivus’ from Populus alba × P. glandulosa were superior clones for the number of shoot with 17.1 ea/clone, 14.5 ea/clone and 13.8 ea/clone at the treatment of SCBLF. For the average of leaf area, the SCBLF treatment showed 35% broader leaf (71.0 cm2) than control (52.3 cm2). The annual average of above-ground biomass production showed 51% better at the SCBLF treatment (8.5 ton/ha) than control (5.6 ton/ha). ‘Clivus’, ‘72-31’ and ‘Bonghwa1’ clones from P. alba × P. glandulosa were superior for the annual average of above-ground biomass production with 15.2 ton/ha, 14.0 ton/ha and 11.6 ton/ha at the treatment of SCBLF.
