• The Korean Journal of Ecology
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• 제21권1호
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• pp.47-63
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• 1998

In order to compare species-specific calcium metabolism, we collected 127 species belonging to 40 different families grown on various habitats including saline, limestone, wetland during the 1996 vegetation period, and analyzed their inorganic ion contents. Plants investigated were divided into 5 groups according to their physiological properties: 1) Chenopodiaceae, Aizoaceae, Caryophyllaceae, Portulacaceae and Phytolaccaceae of Centrospermales and Polygonaceae (Polygonales had a little water-soluble $Ca^{2+}$ but contained high contents of insoluble $Ca^{2+}$ particularly as Ca-oxalate (Chenopodiaceae type), 2) Some plant species such as Rosaceae produced oxalate in amounts insufficient to precipitate all incoming $Ca^{2+}$ and thus contained a surplus of dissolved $Ca^{2+}$ (Rosaceae type), 3) The contents of water-soluble $Ca^{2+}$ in plant species of Crassulaceae. Plantaginaceae, Asclepiadaceae, and Zygophyllaceae were equal to or greater than those of K ($K/Ca{\leq}1$; Crassulaceae type), and 4) K/Ca ratios of Compositae were significantly fluctuated depending on species and soil $Ca^{2+}$ level of their habitats (Compositae type). 5) Certain monocots (Gramineae, Cyperaceae, Juncaceae), in contrast to the dicotyledonous plant families mentioned above, showed a very distinct type of calcium metabolism, that is, the K/Ca ratios of 8~10 were maintained indifferently in the species and their habitat types (Graminae type). These results plants within the same taxon have similar physiological aspects as weel as morphological attributes. To understand calcium metabolism of certain plant species, therefore, it is desirable to approach on the basis of physiological concept (calciotroph or calciophobe) rather than the ecological one (calcicole or calcifuge).

• 동굴
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• 제61호
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• pp.17-46
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• 2000

Mt. Jabyeong(872.5m), limestone region in the Taebaek mountains, located in 37° 32'N, 129° 25'E and in Sangye-ri, Okgye-myeon, Gangreung-si and Samok-ri, Imgye-myeon, Jeongseon-gun, Gangwon-do. The purposes of this study were to investigate the floristic composition from 1997 to 1998 in Mt. Jabyeong and report the distribution of Korean endemic plants, rare and vulnerable plants, calcicoles and calci fuges, The vascular plants in this area were composed of 93 families, 313 genera, 3 subspecies, 57 varieties, 13 forms, 495 species, totaling 568 taxa. Among the vascular plants, 21 taxa were Korean endemic plants and 7 taxa were rare and vulnerable plants. Calcicole and calcifuge plants in this study area were composed of 21 families, 30 genera, 36 species and 14 families, 15 genera, 17 species. The soil pH values of study site in Mt. chabyoung were ranging 7.4∼8, which showed that this site was a mostly limestone area with alkaline soil. And soil depth was formed to a relative thin layer, mostly 2～4cm thickness. This site showed high content of moisture and organic matter which were ranging 40-45% and 15-25%, respectively.

• 식물분류학회지
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• 제35권4호
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• pp.337-364
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• 2005

석회암지대인 강원도 덕항산 일대에 자생하는 관속식물상을 밝히고, 이를 바탕으로 본 지역의 식물지리학적 특성을 논의하였다. 덕항산은 해발 1072.5m에 이르는 석회암지대로서, 지리적으로는 북위 $37^{\circ}17^{\prime}{\sim}37^{\circ}20^{\prime}$, 동경 $128^{\circ}09^{\prime}{\sim}129^{\circ}03^{\prime}$에 위치하며, 행정구역상으로 강원도 삼척시 신기면 대이리에서 태백시 하사미동에 걸쳐 있다. 2003년 10월 10일부터 2005년 10월 4일에 까지 총 10회 조사를 실시한 결과 덕항산 일대의 관속식물은 총 90과 337속 537종 4아종 46변종 3품종의 총 590종류로 분류되었다. 그 중 우리나라 특산식물은 30종이며, 법정 보호종 4종과 희귀 및 멸종위기식물 17종이 분포하였다. 또한 환경부 특정식물종으로는 VI등급 17종, V등급 6종이 조사되었다. 결론적으로 덕항산 일대는 특산식물 및 희귀식물들이 다수가 분포하며, 여러 북방계 식물의 남한계가 되는 곳으로 나타나 식물지리학적으로 중요한 곳으로 평가되었다.