Abstract
The purpose of this study was to investigate the plant community structure and identify the change for 13 years(1983~1996) of forest around Youcheon industrial complex, Korea. 27 plots(300$m^2$/1plot) were established in forest around Youcheon industrial complex. By DCA ordination technique, the 27 plots were classified into five communities, which were Pinus thunbergii community, Pinus thunbergii-Quercus spp. community, P. thunbergii-Eurya japonica community, P. densiflora-P. thunbergii community and P. densiflora community. It seemed that P. thunbergii-Quercus app. community and P. densiflora-P. thunbergii community succeeded to Quercus spp. community and it seemed that P. thunbergii community, P. thunbergii-E. japonica community and P. densiflora community would not be replace by another woody species. Soil pH was pH 4.38~4.61, there were bad soil for organic matters content and exchangeable cations(C $a^{++}$, $Mg^{++}$, $K^{+}$) content. Shannon's diversity, H' max and number of species were improved for 13 years. So did soil characteristics.s.s.s.
여천공단 주변 산림지역의 식물군집구조를 밝히고 13년간 변화를 파악하기 위하여 300$m^2$ 조사구를 27개소 설정하였다. DCA ordination분석 결과 곰솔군집, 곰솔-참나무류군집, 곰솔-사스레피나무군집, 소나무-곰솔군집, 소나무군집으로 나누어졌다. 5개 군집의 천이경향을 살펴보면 곰솔-참나무류군집, 소나무-곰솔군집은 졸참나무, 상수리나무를 중심으로한 참나무류군집으로 변화될 것이며, 곰솔군집, 곰솔-사스레피나무군집, 소나무군집은 현상태를 유지할 것으로 판단되었다. 5개 군집의 토양산도는 pH 4.38~4.61로 산성토양이었으며, 유기물함량, 치환성양이온(C $a^{++}$, $Mg^{++}$, $K^{+}$)함량은 전국토양의 평균치보다 낮은 상태로 불량하였다. 13년간의 식물군집구조와 토양특성변화를 살펴보면 종수, Shannon의 종다양도, 최대종다양도에 있어 1983년보다 1996년이 높아졌으며, 토양특성도 동일한 경향이었다.
