왕대와 솜대의 줄기, 가지, 잎에 양분 분포 = Nutrient Distribution of Culm, Branches and Leaf in Phyllostachys bambusoides and Phyllostachys nigra var. nenosis

다국어 초록 (Multilingual Abstract)

This study was carried out to determine effects of bamboo species on the distribution of nutrients in aboveground biomass of Phyllostachys bambusoides and Phyllostachys nigra var. nenosis, Damyanggun, Korea. The study site was established around 40-year-ago to produce bamboo culm and edible shoot production. Total 28 bamboos (14 P. bambusoides and 14 P. nigra var. nenosis) were cut to measure nutrient concentration of each bamboo component, such as culm, branches and leaf. Magnesium concentration in each bamboo component was significantly higher in the P. bambusoides than in the P. nigra var. nenosis. Nutrient concentrations except for calcium were significantly higher in the current-year-old bamboos than in the > 1-year-old bamboos. The nutrient concentration in leaf was generally highest in carbon, followed by potassium or nitrogen, phosphorus, calcium or magnesium. Total nutrient content in each bamboo component was significantly higher in the P. bambusoides than in the P. nigra var. nenosis. The nutrient content of bamboo biomass was the highest in carbon, followed by potassium, nitrogen, phosphorus, magnesium and calcium. The results indicate that P. bambusoides uptakes more nutrients compared with P. nigra var. nenosis during growth development.

국문 초록 (Abstract)

본 연구는 약 40년 전 식재된 왕대와 솜대를 대상으로 지상부 바이오매스의 기관별 양분 분포를 조사하기 위하 여 실시하였다. 대나무 줄기, 가지, 잎에 양분 분포 비교를 위해 왕대 및 솜대 각 14본(당년생과 다년생 각 7본)을 선정 하여 벌채하고 양분 분석을 실시하였다. 대나무 줄기, 가지, 잎에 양분 농도(concentration) 중 마그네슘은 솜대에 비해 왕대가 높았으며, 질소, 인, 칼륨은 당년생 대나무가 다년생 대나무에 비해 유의적으로 높은 농도를 보였다. 양분 농도의 크기는 잎에 경우 탄소 > 칼륨 >= 질소 > 인 >= 칼슘 >= 마그네슘 순이었다. 줄기, 가지, 잎에 저장된 총 양분 함량 (content)의 경우 왕대가 솜대에 비해 높아, 왕대가 솜대에 비해 양분 요구량이 크게 나타났다. 지상부 바이오매스의 양 분 함량 크기는 왕대와 솜대 모두 탄소 > 칼륨 > 질소 > 인 > 칼슘 >= 마그네슘 순으로 두 대나무가 같은 경향을 보였 다. 본 연구 결과에 따르면, 유사한 입지에 생육하는 왕대와 솜대의 경우 양분 함량에 차이를 보였으며, 양분 요구량은 왕대가 솜대에 비해 높게 나타났다.

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