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During land transformation process in the human history, naturalized plants were introduced to several land use patterns by thedifferent ways of plant itself.Including some naturalized plants that had been contribute to land restoration, many naturalized plants have beeninvaded to original habitat or landscape for native plants.Once the plants were colonized, they extend their area and population size.Urbandeveloped areas often give an important role of source habitat for naturalized plants and expanding their population size.In recent, this situationis appearing as one of environmental problems about the urban landscape management controlling the naturalized plants that invaded in thedeveloped area and conserving the native vegetation.This paper is focusing on relationships between distribution of habitat of naturalized plantsand landscape patch in urban area in Seoul.Gangdong-Gu, one of the administrative areas in Seoul was selected for this study.We examinedthe recent land use change using LANDSAT TM data and spreading of the representative naturalized plants ( Robinia pseudoacacia and Eupatorium rugosum) by Seoul Biotope Mapping Project and field survey in 1999.As a result, these two species were often occurred in thesame habitat and distributed in forest edge disturbed by man.Their distribution patterns were related to landscape indices (patch size andshape) in the forest edge.
