상수리나무 가지의 분해 및 분해과정에 따른 영양염류 변화
Decay Rate and Nutrients Dynamics during Decomposition of Oak Branches
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상수리나무 가지의 분해율과 분해과정에 따른 영양염류의 변화를 33개월 동안 조사하였다. 33개월 경과 후 가지의 잔존률은 B1(직경<1㎝), B2(1cm≤직경<2㎝), B3(3cm≤직경<4㎝)가 각각 44.5%, 58.5%, 55.3% 이었다. B1, B2, B3의 분해 상수는 각각 0.294/yr, 0.195 /yr, 0.215/yr이었다. 분해 과정에 따른 질소 함량은 모든 직경급에서 증가하는 경향을 보였다. 33개월 경과 후 질소 잔존률은 B1, B2, B3가 각각 101.2%, 91.9%, 104.4%이었다. 인 함량은 B1과 B2에서 분해가 진행됨에 따라 초기 함량보다 증가하였고, 분해 과정중 인의 부동화 기간은 없었으며, 33개월 경과 후 인 잔존률은 B1, B2, B3가 각각 57.2%, 74.4%, 53.9%이었다. 칼륨 함량은 분해가 진행됨에 따라 초기 값보다 현저하게 감소하였으며, 33 개월 경과 후 잔존률은 B1, B2, B3가 각각 7.7%,17.1%, 17.2%로 다른 영양염류에 비해 낮았다. 칼슘 함량은 B1을 제외하고 분해 기간동안 그 값이 증가하였으며, 33개월 경과 후 잔존률은 B1, B2, B3가 각각 58.5%, 47.8%, 75.2%이었다. 마그네슘은 가지의 직경이 작을수록 초기 함량이 높았으며, 33 개월 경과 후 잔존률은 B1, B2, B3에서 각각 44.3%, 57.9%, 47.7%이었다.
Abstract
Decay rate and nutrient dynamics during decomposition of oak (Quercus acutissima) branches were investigated for 33-months in Kongju, Korea. After 33-months, remaining weight of B1, B2 and B3 was 44.5%, 58.5% and 55.37%, respectively. Decomposition constant (k) for B1, B2 and B3 was 0.294/yr, 0.195/yr, 0.215/yr, respectively. N concentration in decomposing oak branches increased in all diameter classes. After 33-months, remaining N in B1, B2 and B3 was 101.2%, 91.9%, 104.4%, respectively. P concentration in decomposing oak branches increased in B1 and B2, and there was no immobilization period. After 33-months, remaining P in B1, B2 and B3 was 57.2%, 74.4%, 53.9%, respectively. K concentration in decomposing oak branches decreased significantly. Remaining K in B1, B2 and B3 was 7.7%, 17.1% and 17.2%, respectively, which was significantly lower than other nutrients. Ca concentration in decomposing oak branches increased in B2 and B3. After 33-months, remaining Ca in B1, B2 and B3 was 58.5%, 47.8% and 75.2%, respectively. Initial concentration of Mg in oak branch was higher in smaller diameter class. After 33-months, remaining Mg in B1, B2 and B3 was 44.3%, 57.9% and 47.7%, respectively.
참고문헌 (20)
- "Chemical analysis of ecological materials", pp.291~38 296 (1982)
- "Decomposition of needle litter and itsorganic chemical components Long-term decomposition in a Scots pine forest Ⅲ", pp.2880~2888 (1984)
- "Dynamics of some nitrogen fractionin decomposition Scots pine needle litter", pp.264~267 (1984)
- "Decomposition and nutrient exchange of litteran alluvial swamp forest", pp.601~58 609 (1977)
- "A study on the production anddecomposition of litters along altitude of Mt"
- Davis, "The decomposition ofstanding and fallen litter of Typha glauca and Scirpus fluviatilis", pp.662~675 (1978)
- Perry, "decomposition and nitrogen and phosphorus dynamicsin a chronosequence of slash pine", pp.463~478 (1985)
- Harmon, "Ecology of coarse woody debris in temperateecosystems", pp.133~302 (1986)
- Kelly, "Mass loss and Nutrientchanges in decomposing upland oak and mesic-mixed hardwoodleaf litter", pp.1616~1622 (1987)
- Kim, "The decomposition rate of litteraffecting the amount of mineral nutrients of forest soil in theKorea", pp.14~ (1965)
- Laiho, R., "The contribution of coarse woodydebris to carbon and phosphorus cycles in threeRocky Mountain coniferous forests", 29, pp.1592~1603 (1999)
- Larsen, "N2 fixationassociated with wood decayed by some common fungi inwestern Montana" (1978)
- LeeJ.Y, "Decay rate and nutrients dynamics during wooddecomposition", pp.32p~ (1998), Kongju National University
- Mun, "andnutrients dynamics of litter in red pine stands in the limestone area", pp.147~155 (1992)
- "Dynamics of nutrients constituentsduring litter decomposition", pp.501~511 (1994)
- "Mass loss and changeof nutrients during the decomposition of Phragmites communis", 23:, pp.157~161 (2000)
- "Effects of habitat and nutrientcontent of leaves on the litter decomposition of Larix kaempferiand Quercus serrata at Kwangnung", pp.45~48 (1980)
- "Studies in Ecology" (1979), Univ ofCalifornia Press
- "The role of wood debris inforests and streams In Fresh perspectives from ecosystemanalysis", pp.171~190, Oregon State Univ Press
- "Weight loss and nutrient dynamics during litterdecomposition of Pinus thunbergii and Castanea crenata" (1991), Kongju National University