산불 후 입지에 따른 소나무 분포와 환경 요인 -강원도 고성군을 중심으로- = Relationship between Environment Factors and Distribution of Pinus densiflora after Fire in Goseong, Gangwon Province, Korea

다국어 초록 (Multilingual Abstract)

This study was conducted to evaluate the effect of forest fire on natural distribution and regeneration of Pinus densiflora Sieb. & Zucc. in Goseong, Gangwon province, Korea. After 13 years of the last forest fire in 2000, five investigation plots (10m×10m) in each of rocky land and ridge, the well-known location as a favorite site for natural distribution of P. densiflora, were set to investigate stand characteristic and soil environment including physico-chemical properties and moisture contents of soil. Also, five investigation plots in slope area were set and investigated as well. The concentration of organic matter, total nitrogen, and exchangeable nutrients (K+, Ca2+, Mg2+) were highest in the slope while the soil in the rocky land showed the lowest concentration of organic matter, total nitrogen, available P2O5, and exchangeable nutrients (K+, Na+, Ca2+, Mg2+). The soil in the slope only showed higher concentration of total nitrogen, K+ and Ca2+ than the unburned area in Goseong. Mean soil moisture contents in the rocky land (5.77%) were lowest while the slope (15.78%) and the ridge (15.27%) showed almost three times as much than the rocky land. P. densiflora was dominant in the rocky land and Quercus spp. were dominant in the ridge and slope. The average proportion of P. densiflora was highest in rocky land (58.4%, 14.6 trees per plot) followed by the ridge (25.2%, 7.8 trees per plot) and the slope (11.3%, 3.4 trees per plot) while the average height of P. densiflora was highest in slope (277cm) followed by the ridge and the rocky land. The height and crown width of Quercus spp. were higher than P. densiflora in the every plot. The results suggest that P. densiflora may be able to naturally regenerate and survive in the rocky land after the fire while P. densiflora in the ridge and the slope are suppressed by Quercus spp.

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