Comparison of Mass and Nutrient Dynamics of Coarse Woody Debris between Quercus serrata and Q. variabilis Stands in Yangpyeong
Kim, R.H.;Son, Y.W.;Hwang, J.H.(Korea University, Seoul, Republic of Korea)E-mail:yson@korea.ac.kr
Coarse woody debris (CWD, ≥ 5 ㎝ in maximum diameter) is an important functional component, especially to nutrient cycling in forest ecosystems. To compare mass and nutrient dynamics of CWD in natural oak forests, a two-year study was conducted at Quercus serrata and Q. variabilis stands in Yangpyeong, Kyonggi Province. Total CWD (snag, stump, log and large branch) and annual decomposition mass (Mg/ha) were 1.9 and 0.4 for the Q. serrata stand and 7.5 and 0.5 for the Q. variabilis stand, respectively. Snags covered 72% of total CWD mass for the Q. variabilis stand and 42% for the Q. serrata stand. Most of CWD was classified into decay class 1 for both stands.
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