여천공단 주변 산림지역의 식물군집구조를 밝히고 13년간 변화를 파악하기 위하여 300m2 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.

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(300m2/1plot) 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.

• 한봉호
• 최송현
• 박인협