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Invasion of Korean Pine Seedlings Originated from Neighbour Plantations into the Natural Mature Deciduous Broad-leaved Forest in Gwangneung, Korea  

Kang, Ho Sang (Research Institute for Agriculture and Life Sciences, Seoul National University)
Lim, Jong-Hwan (Department of Forest Environment, Korea Forest Research Institute)
Chun, Jung Hwa (Department of Forest Environment, Korea Forest Research Institute)
Lee, Im Kyun (Department of Forest Environment, Korea Forest Research Institute)
Kim, Young Kul (Department of Forest Environment, Korea Forest Research Institute)
Lee, Jae Ho (Nature and Ecology Research Department, National Institute of Environmental Research)
Publication Information
Journal of Korean Society of Forest Science / v.96, no.1, 2007 , pp. 107-114 More about this Journal
Abstract
Establishments of the seedlings inside the natural forest from adjacent artificial forests would be an important factor in forest stand dynamics. This study was conducted to see the invasion of Korean pine (Pinus koraiensis) seedlings which is not native in this region, into the natural deciduous broad-leaved forest in Gwangneung, Korea. There is no mother tree at the I ha study site while the number of naturally regenerated P. koraiensis seedlings was 345 trees and 56% of them were clumped with more than two seedlings at each point. Applying the image segmentation method to IKONOS satellite image of January, 2003, the distance from the center of 1 ha study site to the nearest mother tree and plantation of Korean pine were 200 m and 270 m, respectively. The average height and root-collar diameter of the seedlings were 34 em and 7 mm, respectively and the age of 207 seedlings (60%) were below 5 years old. Most abundant range of soil moisture gradient and LAl (leaf area index) were from 16 to 20% and those of LAI were from 3.1 to 3.5. To understand the dynamics and seed dispersal pattern of Korean pine in the Gwangneung natural deciduous broad-leaved forests, additional studies not only long-term monitoring of growth and mortality of naturally regenerated Korean pine seedlings but also application of stable isotope analysis and molecular genetic techniques was recommended.
Keywords
Pinus koraiensis; seedling distribution; forest stand dynamics; deciduous broad-leaved forest; natural regeneration; soil moisture; LAI; IKONOS satellite image;
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