Journal of Ecology and Environment

The Ecological Society of Korea (한국생태학회)
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Effects of Nitrogen and Phosphorus Fertilization on Nutrient Dynamics and Litterfall Production of Pinus rigida and Larix kaempferi

질소와 인 시비가 리기다소나무와 낙엽송의 낙엽 생산량 및 양분 동태에 미치는 영향

  • Lee, Im-Kyun (Department of Forest Environment, Korea Forest Research Institute) ;
  • Son, Yow-Han (Division of Environmental Science and Ecological Engineering, Korea University)
  • 이임균 (국립산림과학원 산림환경부) ;
  • 손요환 (고려대학교 환경생태공학부)
  • Published : 2006.06.01
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Abstract

Effects of nitrogen and phosphorus fertilization on nutrient dynamics and litterfall production were determined in adjacent 41-year-old plantations of Pinus rigida Miller and Larix kaempferi Gordon on a similar soil in Yangpyeong, Gyeongggi Province. Litterfall production were significantly different among sampling dates and between the tree species, whereas it was not significantly different among the treatments. Total annual litterfall production was 6,377 kg/ha for P. rigida and 4,778 kg/ha for L. kaempferi, respectively. Litterfall nutrient concentrations of L. kaempferi were higher than those of P. rigida. For both tree species, litterfall nutrient concentrations were highest in summer when the least litterfall production occurred, and lowest in late-autumn when the greatest litterfall production occurred, except for Ca in the L. kaempferi stand. The amount of total organic matter in the forest floor of P. rigida and L. kaempferi plantations were 24,296 kg/ha and 10,763 kg/ha, respectively. Forest floor N and P contents were 126, 10 kg/ha for P. rigida and 102, 8 kg/ha for L. kaempferi, respectively.

본 연구는 경기도 양평지역 내 서로 인접하여 있고 동일한 입지 환경 위에 생육하고 있는 41년생 리기다소나무와 낙엽송 조림지를 대상으로 질소와 인 시비처리가 리기다소나무와 낙 엽송의 낙엽 생산량 및 양분 동태에 미치는 영향을 구명하기 위하여 수행되었다. 낙엽 생산량은 시료채취 시기와 수종간에 통계적으로 유의성이 인정된 반면, 시비 처리간에는 유의적인 차이가 없었던 것으로 나타났다. 연간 낙엽 생산량은 리기다소나무가 6,377 kg/ha 그리고 낙엽송이 4,778 kg/ha이었다. 낙엽 내 양분농도는 낙엽송이 리기다소나무에 비해 높았으며, 두 수종 모두 처리구간에 유의적인 차이가 있는 것으로 나타났다. 또한 낙엽 내 양분 농도는 낙엽송에서의 Ca 함량을 제외하고 두 수종 모두 연중 낙엽 생산량이 가장 많았던 늦가을에서 가장 낮았으며, 연중 낙엽 생산량이 가장 적었던 여름에 가장 높았던 것으로 나타났다. 또한 리기다소나무와 낙엽송 임분 임상의 총 유기물 함량은 24,296 kg/ha, 그리고 10,763 kg/ha였으며, 임상 내질소와 인의 함량은 리기다소나무가 126, 10 kg/ha, 그리고 102, 8 kg/ha로 각각 나타났다.

Keywords

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