이질적 경관에서의 연결성 측정: 리뷰 및 적용 = Measuring Connectivity in Heterogenous Landscapes: a Review and Application*

다국어 초록 (Multilingual Abstract)

The loss of connectivity and fragmentation of forest landscapes are seriously hindering dispersal of many forest-dwelling species, which may be critical for their viability and conservation by decreasing habitat area and increasing distance among habitats. For understanding their environmental impacts, numerous spatial models exist to measure landscape connectivity. However, general relationships between functional connectivity and landscape structure are lacking, there is a need to develop landscape metrics that more accurately measure landscape connectivity in whole landscape and individual patches. We reviewed functional and structural definition of landscape connectivity, explained their mathematical connotations, and applied representative 13 indices in 3 districts of Seoul having fragmented forest patches with tits, the threshold distance was applied 500m by considering the dispersal of tits. Results of correlation and principal component analysis showed that connectivity indices could be divided by measurement methods whether they contain the area attribute with distance or not. Betweenness centrality (BC), a representative index measuring distance and distribution among patches, appreciated highly stepping stone forest patches, and difference of probability of connectivity (dPC), an index measuring including area information, estimated integrated connectivity of patches, Therefore, for evaluating landscape connectivity, it is need to consider not only general information of a region and species` characteristics but also various measuring methods of landscape connectivity.

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