본 연구는 강원도 계방산 대한동계곡 내 위치한 수변림 장기생태 연구지를 대상으로 식물군집의 알파 및 베타 종다양성과 제어인자를 분석하기 위해 수행되었다. 식생조사 결과, 수변림 조사구 내에서 총 61과 126속 189종의 식물종이 관찰되었으며, 고란초과와 미나리아재비과에 속하는 종이 각각 15종으로 가장 많았다. 식물다양성과 제어인자에 대한 분석 결과, 상층과 하층식생의 알파 다양성을 예측하는데 가장 중요한 인자는 각각 경사도와 습윤도 지수였다. 베타 다양성은 조사구 간 거리와 환경인자의 비유사성이 모두 중요한 요인으로 나타났으나, 식물 개체가 속한 산림 층위에 따라 그 상대적 중요성은 달랐다. 즉, 상층식생의 경우 환경인자의 비유사성이 더 중요한 반면, 하층식생의 경우 조사구 간 거리가 더 중요한 인자인 것으로 분석되었다. 본 연구는 계방산 수변림의 식물 다양성과 제어인자가 산림 층위에 따라 다르며, 이들 군집이 상층과 하층식생의 서로 다른 메커니즘에 의해 복합적으로 나타난 현상임을 제안한다.

Moths were collected using a 22W UV black light trap in June through September in 2005 and May, June, August and September in 2006. The study sites were Namsan (Mt. Nam), Jirisan (Mt. Jiri), Woraksan (Mt. Worak) which are part of the Korean National Long Term Ecological Research (KNLTER). There were two common forest communities, Quercus mongolica and Pinus densiflora. The purpose of this study was to compare species diversity of the major plant feeding Lepidoptera in the two forest types at the regional KNLTER sites. We collected a total of 435 species from the KLTER sites in 2005 and 2006. Abundance of moths was highest at Woraksan (Mt. Worak) followed by Jirisan (Mt. Jiri). The Namsan (Mt. Nam) site had the lowest, with five families (Arctiidae, Geometridae, Noctuidae, Notodontidae, and Pyralidae). Analysis of variance (ANOVA) showed statistically significant differences at sampling date in species abundance as a response variable and at site in species richness as another response variable. Although we expected a distinct cluster with the forest type at each study site, one of ordination analyses, nonmetric multidimensional scaling (NMS), showed distinct clusters with the moth assemblages at each site only but NMS did not show any distinct cluster with the different forest types at each site as we expected.

The purpose of this study was to propose an efficient management plan for purchased land considering the hydrological, watershed characteristics and ecological functions of the target land and surrounding area based on the result of monitoring the water quality improvement effect obtained by purchasing the land in the watershed area in the Geum river system. For this purpose, this study investigated through literature review, and examined ways to apply them to this research by deriving implications from a comprehensive analysis of previous research cases. After that, the components of assessment were derived to evaluate the ecological function of the purchase land, and the ecological function evaluation model for each land and area was proposed. In order to select purchase and restoration priorities of the land, this study analyzed the ecological status of the purchased land in main watersheds and tributaries using Arc GIS ver 10.1. Through this, a process to select restoration priorities was developed. And this study constructed the integrated management process with proposing a mid - to long - term plan by integrating the purchased land valuation and restoration priority selection process. Based on this process, this study suggested an effective management plan for purchased land through the integrated ecological management system of lands purchased. It can be used systematically in appraisal valuation, land purchase system, restoration project, and follow-up management of land purchase.