금정산 식물상의 변화에 관한 연구 = A Study on Changes in Floras of the Mt. Keumjung

다국어 초록 (Multilingual Abstract)

For the purpose of this study is to analyze the flora of plants and forest vegetation of Mt. Keumjung. The results of the study can be described as below.
1. Plants growing at the 8 quadrates of the Mt. Keumjung were 24 families, 36 genuses and 3 species in 1994 and 23 families, 33 genuses and 49 species in 2001.
2. The soil acidity of the 8 areas surveyed here in 2001 was 4.8 to 5.5 in pH, indicating that the soil was gradually being oxidized. The soil hardness was found 15.8 to 28.3 mm, 20.8 in average.
3. Pinus rigida was found highest In dominance, occupying 352% of the total population of arbors, followed by 2.96% for Alnus hirsuta and 2.51 for Styrax japonicn while among the azalea was found highest in dominance, accounting for 44.49% out of the total population of shrubs, followed by 15.14% for Rhododendron yedoense var. poukanese and 3.92 for Rubus idaeus var. concolor.
4. Of the 8 quadrates, sect 8 of the North Gate was highest in the number of extinct trees. 15 kinds. This is probably because of the pressure by climbers' steps. Sect 3 of the West Gate and sect 5 of the South gate had 8 kinds of extinct trees, respectively. The number of newly appeared trees was highest at sect 7 of the North Gate, 8 kinds, followed by sect 5 and sect 6, respectively 5 kinds.
5. At the area of the West Gate(sect 3, sect 4) to which the sabbatical year system(Area : Puk-gu district and a part of Keumjung-gu district) was applied, 21 plant species newly appeared, more than any of the other areas. At the area of the South Gate(sect 5, sect 6). in contrast, 15 plant species disappeared and at the area of the North Gate(sect 7, sect 8). as many as 20 became extinct. The areas surveyed here showed that the extinction of plant species was mainly due to the pressure by climbers' steps rather than to changes in natural environment. To protect the forest and plants of the Mt. Keumjung, thus, it is necessary to increase the period and area of the sabbatical year system and take more effective actions for the management of the forest and plants.