1986년 4월에 산불이 일어나서 소나무림과 그 임상식생이 全燒된 경상북도 구미시 남통동에 위치한 금오산의 산등성이(표고 250 m, N10W)를 중심으로 산화지와 이에 인접한 비산화지인 소나무림을 대조구로 선정하여 산불이 일어난 후 4년째인 1990년 4월 부터 1991년 4월까지 식생, 종조성, 종다양성, 균등성 지수, 2차 천이과정을 분석한 결과는 다음과 같다. 조사지의 식물은 산화지가 68종류, 비산화지가 31종류로 4년째인 산화지는 비산화지보다 37종류가 더 많았다. 식물의 생a활형은 산화지와 비산화지가 다 같이 H-Dl-R_5-e형이었고, 적산우점도 (SDR_3)순위는 산화지에서 참싸리(94.67)-억새(91.95)-김의털(68.33)-큰기름새(52.06)순이었고, 비산화지는 소나무(76.67)-아까시나무(56.25)-신갈나무(52.08)-산거울(40.25)순이었다. 천이도(DS)는 산화지가 675.8, 대조구인 비산화지(소나무림)가 884.2, 종다양성지수는 산화지가 4.07, 비산화지는 2.05이있다. 균등성지수는 산화지가 0.965, 비산화지는 0.595로서 산화지가 식물이 균등히 분포하고 있었다. 산화지와 비산화지의 유사도지수는 0.42로 비교적 낮은 값을 나타내었다.
This is a report on the recovery of vegetation and secondary succession in the burned area studied from April, 1990 to April. 1991. The forest fire occurred in a part of Mt. Ku˘mo-san on April, 1986 and the pine forest and its understory vegetation were burned out completely. The floristic compositions of burned (B) and unburned (U) areas were composed of sixty eight and thirty one species (vascular plants), respectively. These species were divided into invaders (47 species), increasers (15 species ), decreasers (3 species), neutrals (3 species), and retreaters (10 apecies) on the basis of summed dominance ratio (SDR_3). Biological spectra showed the H-D_1-R_5-e type in both the burned and unburned areas. The species of Lespedeza (SDR3_3=94.7), Miscanthus (91.95), Festuca (68.33), and Spodipogon (52.06) were dominant in the burned areas, while the species of Pinus (76.67), Robinia (56.25), Quercus (52.08), and Carex (40.25) were dominant in the unburned area. Dominance index (C) in burned and unburned areas was 0.15 and 0.25, respectively. The index of similarity (CCs ) was 0.42. The degree of succession (DS) and species diversity (H) in burned and unburned areas were 675.8, 884.2 and 4.07, 2.05, respectively. The degree of succession in the burned area gradually increased and the burned area was recovered to be similar to the unburned area. Evenness index in burned and unburned areas was 0.965 and 0.595, respectively.
