우포늪 물억새(Miscanthus sacchariflorus) 군락에서 생장초기에 잘라주기와 태워주기에 따른 성장변화 = The Evaluation of Early Growth Pattern of Miscanthus sacchariflorus after Cutting and Burning in the Woopo Wetland

다국어 초록 (Multilingual Abstract)

Growth patterns after the cutting and burning of Miscanthus sacchariflorus community were analyzed in the Woopo Wetland. Three replicates of 5 × 5 m plot of control, burning, and cutting treatments were established in April 2003 and changes of growth pattern were monitored by August 2003. In the control, burning, and cutting plots, a total of 7 families and 8 species, 14 families and 18 species, 6 families and 8 species were observed respectively. Burning plot showed high diversity of flora. However, high diversity declined after July and all plots showed a similar species diversity. Vine plant, Humulus japonicus, dominated in the burning plots. Change of shoot density was highest in the early period in the burning plots (176/㎡) and shoot density in early May was almost double of the control and cutting plots. Toward to the end of active growth period (August), shoot density in cutting plot (170±7/㎡) was higher than that of burning plots (141±9/㎡). Shoot length of the cutting, burning, and control plot was 205±15 cm, 196±17 cm, and 187±6 ㎝ (n>100) respectively. Above-ground biomass of cutting plots was higher than that of burning and control plots. Above-ground biomass of cutting plot was 1.6 times higher than the control while burning plot showed 1.4 times. This study indicted that cutting of Miscanthus sacchariflorus community increase shoot density development, length growth, and above-ground biomass.

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