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The aim of this study is to establish a plan for the environment and ecosystem by studying the characteristics of urban ecosystems, involving one of Seoul's districts for environment-friendly urban management. Biotope type in Gangnam-gu was classified into six large groups: forest, planted area, grassland, stream and wetland, cultivated land and urbanization area. Then the six groups were again divided into 22 small groups on the basis of composition of species, naturalness, diversity of stratification and scarcity. Filicales and Disporum smilacinum communities, moisture-loving native plants which are well worth conserving, were distributed widely throughout the northern slope of Mt. Daemosan, an outer mountain in Gangnam-gu. In contrast, Ageratina altissima, one of the naturalized plants in Seoul, was found to spread over Mt. Maebongsan and the Cheongdam neighborhood park, residual mountaintype parks located along the northern part of the Yangjaecheon stream. The southern part of the stream was found to be used as a route for woodpeckers and small wild birds, since the district's residual mountain type park was connected to large outer forest whose naturalness was in good condition. Under the plan for ecosystem conservation and restoration, conservation and restoration areas with highly valuable conservation biotopes were selected. Under the plan for ecosystem networking, a natural corridor and a green corridor were designed to connect greenspaces for the migration of woodpeckers. The plan for enlarging the greenspaces has a short-, mid-and long-term plan for areas that are need to secured greenspaces. The plan was set after comparing greenspaces in each block within the district.

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T h i ss t u d yw a sa c c o mp l i s h e db ya n a l y z i n gt h ec h a n g eo fl a n dc o v e rp a t t e r ni nh i g h -r i s eb u i l d i n g si nK o r e a . F o rt h i s s t u d y , w es e l e c t e d1 5l o c a t i o n so fh i g h -r i s eb u i l d i n g s . T h er a t i oo fa v e r a g eb u i l d i n gc o v e r a g ea n dp a v e da r e aw a s7 9 . 7 %, a n db o t hg r e e na n dw a t e r a r e awe r el o w , r e l a t i v e l y . T h eb i o t o p ea r e af a c t o ro f t h es i t es h o w e dl o wp e r c e n t a g eb y1 5 . 9 0 % d u et ot h eu n d e r g r o u n ds p a c ed e v e l o p me n t . A sar e s u l t o f c o r r e l a t i o na n a l y s i sb e t w e e nt h et i meo f c o n s t r u c t i o na n dl a n d -c o v e r t y p e , b u i l d i n gc o v e r a g eh a sb e e nd e c r e a s e da c c o r d i n gt ot h es t r e a mo f t i me . H o w e v e r , b i o t o p ea r e af a c t o r h a sb e e ni n c r e a s e d .A n d , t h ep a v e da r e ah a sn oc o r r e l a t i o n . I t w a si d e n t i f i e dt h a tr e d u c i n gp a v e da r e ai se f f e c t i v et oe n h a n c et h ee c o l o g i c a l f u n c t i o n so fah i g h -r i s eb u i l d i n go u t d o o r . K e yWo r d s :B i o t o p eA r e aF a c t o r ,F l o o rA r e a ,P a v e dA r e a ,U n d e r g r o u n dD e v e l