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KMID : 0368420060490020141
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Journal of Plant Biology
2006 Volume.49 No. 2 p.141 ~ p.152
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Vegetation trajectories of Korean red pine (Pinus densiflora Sieb. et Zucc.) forests at Mt. Seorak, Korea
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Chun Young-Moon
Lee Ho-Joon
Lee Chang-Seok
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Abstract
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The vegetation dynamics of Korean red pine (Pinus densiflora) forests were investigated at Mt. Seorak, Korea. Our Detrended Correspondence Analysis (DCA) classified the forests into four types: ridge top, upper slope, lower slope/hill, and streamside. The ridge top forests were likely to sustain themselves, as suggested by the large proportion of seedlings and saplings (89% at <25 years old) and the relatively high density ofP. densiflora (2388 stems ha-1). Periodic disturbances, such as flash floods, made the streamside inhospitable to late-successional species. Such conditions may have provided a favorable environment for the recruitment ofP. densiflora seedlings through increased solar radiation and decreased competition with other species. On the upper slopes, the dominance ofQuercus seedlings and saplings (63% at >25 years old, and a density of 3263 stems ha-1) suggests a transition from pine to oak forest. Extensive human interventions appeared to arrest the natural succession from pine to oak forests on the lower slope/hill, while encouraging invasions by forest-edge and introduced species (e.g.,Rosa multiflora andRobinia pseudoacacia).
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KEYWORD
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dynamics, forest, landscape, oak, pine
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