시계열 토지피복자료를 활용한 천안시 산림 파편화 분석 및 복원 우선지역 선정* = Analysis of Forest Fragmentation and Selection of Priority Areas for RestorationinCheonanCityUsingMulti-TemporalLandCoverData*

다국어 초록 (Multilingual Abstract)

This study aimed to investigate the effects of surrounding land-use types on butterfly community diversity and structure in grassland habitats in Pyeongtaek, South Korea. Four grassland sites with different dominant surrounding land-use types (farmland, forest, grassland, and settlement) were selected, and butterfly surveys were conducted using the Pollard walk method. Species richness, Shannon diversity index, Simpson diversity index, and evenness were calculated to compare community characteristics among sites. In addition, Non-metric Multidimensional Scaling (NMDS) and PERMANOVA analyses based on Bray–Curtis dissimilarity were used to evaluate differences in butterfly community composition among land-use types. A total of 13 butterfly species belonging to five families and 245 individuals were recorded across the study sites. Settlement and grassland sites showed relatively higher diversity and evenness indices, indicating more balanced community structures, whereas the forest site showed lower diversity due to dominance by a single species. NMDS analysis revealed clear differences in community composition among land-use types, and PERMANOVA confirmed that these differences were statistically significant (F = 3.541, p = 0.001). These results suggest that surrounding landscape structure and land-use patterns play an important role in shaping butterfly communities in grassland habitats. This study highlights the ecological importance of grasslands and heterogeneous landscape structures for maintaining butterfly biodiversity. The findings provide baseline information for grassland conservation and landscape management strategies aimed at enhancing insect biodiversity. This study represents a case study conducted within a limited temporal and spatial scope.