석회암지대 산림식생의 유형과 환경특성 = Classification of forest vegetation type and environment properties in limestone area of Korea

다국어 초록 (Multilingual Abstract)

The limestone area covers the narrow range of the Korean Peninsula, and it consists of a peculiar ecosystem and topography. Therefore, this study on limestone area was carried out classification of vegetation type, physicochemical properties of forest soils and correlation between environment factors and vegetation types in order to furnish fundamental data for the forest management of limestone area. Forest vegetation was classified into two community groups such as Quercus variabilis community group and Quercus mongolica community group, and it was classified into eight vegetation units. Soil texture of survey sites showed largely silt loam and soil pH indicated the value of mean 7.55 in the A layer of soil profile. Content of exchangeable cation such as calcium ion (Ca2+) and magnesium ion (Mg2+) showed 26.04 cmolc/kg and 2.93 cmolc/kg, respectively, which was about ten times higher than average of other regions of Korea. According to corelation between environmental factors and vegetation units, Q. variabilis community group was positively correlated to soil pH, slope degree and the rate of bare rock, and content of calcium ion (Ca2+), and then Q. mongolica community group was positively correlated to altitude, respectively.

국문 초록 (Abstract)

우리나라 석회암지대는 한반도에서 그다지 넓지 않은 좁은 지역에 집중적으로 분포하고 있고, 독특한 생태계 지역이므로 석회암지대 산림관리를 위한 기초자료를 제공하고자 산림식생의 유형분류, 산림토양의 이화학적 특성, 환경요인과 식생유형의 상관관계 등을 구명한 결과, 식생은 굴참나무군락군과 신갈나무군락군의 2개 군락군으로 크게 분류되었고, 기타 하위식생단는 4개 군락, 6개 군, 2개 소군으로 세분되어 총 8개의 식생단위로 나타났다. 석회암지대 조사지의 토성은 미사질양토로 나타났고, A층의 토양산도는 7.55로 나타났으며, 치환성 양이온인 칼슘(Ca2+)과 마그네슘(Mg2+) 함량은 각각 평균 26.04cmolc/kg와 2.93cmolc/kg으로서 매우 높게 나타났다. 굴참나무군락군은 pH가 높고, 사면경사가 급하고, 노암율이 높으며, Ca 이온의 농도가 높은 입지에 주로 분포하는 경향이었고, 신갈나무군락군은 표고가 높은 입지에 분포하는 경향이었다.

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