行政院國家科學委員會專題研究計畫成果報告: 從地形觀點看淡水河口水筆仔紅樹林分布變遷之研究
Date Issued
1999
Date
1999
Author(s)
DOI
882621B002031
Abstract
This study from the geomorphologic
perspective use aerial photo interpretation
and field survey to investigate the change of
Kandelia candel (L.) Druce distribution in
Tanshui estuary in the latest 20 years.
Results indicate that the total area of
Kandelia in Tanshui estuary for years 1978,
1986, 1994 and 1998 is 47.62, 47.15, 81.43
and 103.80 ha, respectively. During the
period of 1978-1986，the total area of
Kandelia is almost no change due to the
disturbance of channel landforms caused by
human activities, which is not suitable for
mangrove survival and expansion. After
1986, the total area is increased fast because
several habitats along the riverbanks are
created by sediment accumulation. Those
habitats provide suitable environments for
Kandelia growth and dispersal. On average,
the increase rate of Kandelia distribution area
for the periods of 1986-1994 and 1994-1998
is 4.28 ha/year and 5.59 ha/year, respectively.
Meanwhile, there is a trend that Kandelia is
expanding its distribution to the upstream
areas continuously.
Subjects
Tanshui estuary
mangrove
Kandelia candel (L.) Druce
habitat
geomorphologic perspective
Type
report
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