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http://dx.doi.org/10.7732/kjpr.2012.25.1.123

Structure and Dynamics of Taxus cuspidata Populations  

Chun, Young-Moon (Climate Research Institute, Konkuk University)
Hong, Moon-Pyo (Center for Environmental Research, Gangneung-Wonju National University)
Lee, Na-Yeon (National Park Research Institute)
Seo, Eun-Kyoung (Deokyusan National Park Office)
Lee, Seung-Ho (Department of Geography and Climate Research Institute, Konkuk University)
Publication Information
Korean Journal of Plant Resources / v.25, no.1, 2012 , pp. 123-131 More about this Journal
Abstract
This study analyzed on the characteristics of community structure, species composition, population conditions and annual mean radial growth of Taxus cuspidata in the subalpine zone of the Seoraksan, Deokyusan, and Hallasan National Parks. Deokyusan and Hallasan sites had three layers of stratification structure without tree layer in it and four layer in Seoraksan site. The major dominant species in the order of importance value were as follows: T. cuspidata, Acer tschonoskii var. rubripes, Quercus mongolica, Abies koreana and Sorbus commixta. The trees (> 5 cm DBH) of T. cuspidata were extremely high with 986.0 individuals/ha at the Hallasan site. Average DBH class were 42.0 cm at the Hallasan site and mainly showed large class. The populations of seedlings and saplings with 357.3 individuals/ha, and juvenile with 128.6 individuals/ha, as a succession tree, were found to be the highest at the Hallasan site. In the size frequency distribution, the populations of T. cuspidata in Mt. Halla site showed a reverse J-shaped curve and it was estimated that T. cuspidata community of this site might be maintained continuously as a stable state like present state. Annual mean radial growth of T. cuspidata populations at Seoraksan, Deokyusan, and Hallasan sites showed up as 1.27 mm/year, 0.93 mm/year and 0.89 mm/year respectively.
Keywords
Annual mean radial growth; Deokyusan; Hallasan; Population structure; Seoraksan; Subalpine zone;
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