동강할미꽃 자생지의 환경 및 생태적 특성 = Environmental and Ecological Characteristics of Pulsatilla tongkangensis Habitats

다국어 초록 (Multilingual Abstract)

This is a study intended to investigate the environmental factors including vegetation and soil in order to better understand the environmental and ecological characteristics of four different habitats of Pulsatilla tongkangensis (Mt. Baekun, Maha-ri, Kyulam-ri and Mt. Deokhang). These habitats, according to investigations, are mostly located on the slopes of mountains facing northwest at an altitude of 220m to 772m above sea level with angles of inclination ranging from 41 degree to 85 degree. A total of 27 vascular plant taxa are identified in ten quadrates of the four habitats. The importance value of these plants is as follows: Pulsatilla tongkangensis is 9.65%; Carex humilis var. nana 28.93%; Potentilla dickinsii 16.55%; Mukdenia rossii 7.09%; Peucedanum terebinthaceum and Eragrostis ferruginea 4.55%; and Vicia venosa var. albiflora 3.90%. The importance value of these six species is high, so they are at affinity with P. tongkangensis in their habitats. The degree of their average species diversity is 0.75, and that of dominance and evenness 0.24 and 0.85, respectively. Their average field capacity of soil
is 19.05%, organic matter 10.51%, and soil pH is 7.43, which are similar among their habitats.

국문 초록 (Abstract)

동강할미꽃 자생지(백운산, 마하리, 귤암리와 덕항산)의 환경특성을 파악하기 위하여 환경요인, 식생 및 토양분석을 실시하였다. 동강할미꽃 자생지는 해발 220-772 m에 위치하고, 경사는 41-85°로 다양하였으며, 주로 북서사면에 분포하였다. 식생분석결과 10개 방형구내에서 조사된 분류군은 총 27종류였다. 중요치는 동강할미꽃이 9.65%였으며, 산거울(28.93%), 돌양지꽃(16.55%), 돌단풍(7.09%), 기름나물과 그령(4.55%), 큰네잎갈퀴(3.90%) 등 6종류는 중요치가 높게 나타나 이 분류군들은 동강할미꽃과 친화도가 높은 것으로 생각된다. 종다양도는 평균 0.75이었고 우점도와 균등도는 각각 0.24와 0.85로 나타났다. 토양의 포장용수량은 평균 19.05%이었으며, 유기물 함량은 10.51%로 나타났고, pH는 7.43으로 자생지간에 비슷하게 나타났다.

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