Changes in Flora Dynamics on the Reclaimed Tidal Flats of Kyonggi-Bay in the Mid-west Coast of Korea

서지정보

· 발행기관 : 한국토양비료학회
· 수록지 정보 : 한국토양비료학회지(Korean Journal of Soil Science and Fertilizer) / 42권 / 4호 / 289 ~ 300페이지
· 저자명 : 김은규, 정영상, 천소을, 주영규, 정형근

초록

Flora distribution was surveyed in the newly reclaimed tidal flats in the west coastal area in Korea to
understand changes in flora dynamics after reclamation. The surveyed reclaimed tidal flats were the newly
reclaimed tidal flat in Hangdam, the mid Kyonggi Bay in 2002, and three reclaimed lands in Seukmun and
Daeho, Chungnam, and Hangdam in Kyonggi Bay, of which reclamation years based on embankment were
7, 9 and 18 years, respectively. In the newly reclaimed tidal flat, the dominant flora was Suaeda japonica
and other florae were rare, while various halophytes and glycophytes were distributed in the reclaimed
lands. On the newly reclaimed tidal flat, four species of halophytic pioneer florae, Salicornia europaea,
Suaeda glauca, Suaeda japonica, and Suaeda maritime occurred, and along with age facultative halophyte
and glycophyte occurred sequently. On the reclaimed lands, the florae were more complex with various
facultative halophyte and glycophyte, so these were predominated rather than pioneer halophyte, while one
of pioneer halophyte that Suaeda japonica was not occurred. Increasing of various facultative halophyte
and glycophyte, and decreasing of pioneer halophyte indicated that flora changed toward to increase of
facultative halophyte and glycophyte by aged after reclamation. On the newly reclaimed tidal flat the ratio
of flora species changed rapidly with the invasion of plant. This implied that the flora had begun to change
in the early stage of reclamation. Facultative halophyte and glycophyte started to increase on the early
stage of reclamation but relative density and frequency of pioneer halophyte was higher than facultative
halophyte and glycophyte. According to the investigation up to 3 years after reclamation, pioneer halophyte
predominated on it. Although flora changed, there were common representative halophytes among the
reclaimed tidal flats: Salicornia europaea, Suaeda maritima, and Suaeda glauca as pioneer halophyte, Aster
tripolium, Sonchus brachyotus, and Phragmites communis as facultative halophytes.

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