An-yang stream is a branch stream connecting to Han river and regarded as a national stream. This study
chose the representative stream of An-yang and identified vegetation and flora. The ecological survey aimed at
identifying indicator of urban streams for measuring to protect urban areas and to promote wetland conservation. A
total of 266 species were identified into 35 Orders, 78 Families. The introduced species of Sicyo angulatus need a
special treatment to reduce the population. The wetland vegetation is quite various and we suggested 11 different
vegetation zones depending on introduced species and amenity between human and nature, This will lead to
blue-network to crease favorable environment and manage important species for this region.
Keywords : An-yang stream, national stream, wetland ecosystem, biodiversity, blue-network