Decay Rate and Nutrients Dynamics during Decomposition of Oak Roots

• Published in: The Korean Journal of Ecology Vol. 27; no. 3
• Main Author: Mun, H.T.(Kongju National University, Kongju, Republic of Korea)E-mail:htmun@kongju.ac.kr
• Format: Journal Article
• Language: Korean
• Subjects: BIODETERIORATION; BIODETERIORO; Decay rate; Decomposition constant; DEGRADACION; DEGRADATION; Nutrients; Quercus acutissima; Root decomposition; 분해; 분해과정; 뿌리; 상수리나무; 영양염류
• ISSN: 1225-0317

Weight loss and nutrients dynamics during decomposition of oak roots (diameter classes: R₁less than 0.2㎝, 0.5㎝less than R₂less than 1㎝, 1㎝ less than R₃less than 2㎝, 2㎝less than R₄less than 4㎝) (Quercus acutissima) were studied for 33-months in Kongiu, Korea. After 33-months, decomposition rate of R₁, R₂, R₃ and R₄ was 49.6%, 47.5%, 66.4% and 66.1%, respectively. The decomposition constant(k) for R₁, R₂, R₃, and R₄ was 0.249/yr, 0.234/yr, 0.397/yr and 0.393/yr, respectively. Larger diameter class of the root lost more weight than smaller diameter class. N concentration in decomposing oak roots increased in all diameter classes. After 33-months, remaining N in R₁, R₂, R₃ and R₄ was 66.5%, 80.7%, 84.4% and 44.4%, respectively.