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http://dx.doi.org/10.13047/KJEE.2014.28.6.751

Vegetation Structure and Site Characteristics of Rhododendron brachycarpum Population in South Korea  

Hwang, Yong (Korea Forest Seed & Variety Center)
Han, Mu-Seok (Korea Forest Seed & Variety Center)
Kim, Yong-Yul (Korea Forest Seed & Variety Center)
Kim, Mu-Yeol (Dept. of Biological Sciences, Chonbuk Nat'l Univ.)
Publication Information
Korean Journal of Environment and Ecology / v.28, no.6, 2014 , pp. 751-761 More about this Journal
Abstract
This study was carried out to analyze the vegetation properties, soil characteristics and ordination of Rhododendron brachycarpum population in South Korea. Rhododendron brachycarpum were mainly distributed along the Ulleungdo and Baekdudaegan of the Korean penninsula and it's population was located at an elevation of 872m to 1466m. The Rhododendron brachycarpum population was classified into Taxus cuspidata var. latifolia dominant population, Magnolia sieboldii dominant population, Thuja koraiensis dominant population and Rhododendron brachycarpum typical population. The composition of soil properties in the same areas are as follows: organic matter, total nitrogen, available phosphorous, exchangeable $K^+$, exchangeable $Ca^{2+}$, exchangeable $Mg^{2+}$ contained, and soil pH. The capacities of these chemical properties of the soil ranged from 10.45~15.28%, 0.37~0.61%, $0.21{\sim}0.35cmol^+/kg$, $0.39{\sim}2.54cmol^+/kg$, $0.17{\sim}0.50cmol^+/kg$, $18.28{\sim}22.81cmol^+/kg$ and 4.66~5.23 respectively. The results of the correlation between communities and soil conditions of vegetation of Rhododendron brachycarpum by DCCA ordination method are as follows: Taxus cuspidata var. latifolia dominant population was found in the very steep sloped area that has low percentage of total organic matter and nitrogen than other populations. Magnolia sieboldii dominant population and Thuja koraiensis dominant population was found in the steep sloped area that has high percentage of total organic matter and nitrogen than other populations. Thuja koraiensis dominant population was found in the gentle sloped area that has high percentage of altitudinal and rock exposure. Current status of Rhododendron brachycarpum is very vulnerable with a collection of herbs constantly threatening the species' survival. Thus, concrete conservation plans to protect natural habitats should be set up as soon as possible.
Keywords
POPULATION ECOLOGY; PHYTOSOCIOLOGY; SOIL CHARACTERISTIC;
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Times Cited By KSCI : 2  (Citation Analysis)
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