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
2000
Date
2000
Author(s)
DOI
892313B002131
Abstract
A series of aerial photos from 1978 to
1998 and a systematic survey are used to
analyze vegetation changes in the Kuantu
wetland in the latest 20 years. Total 16
transects are carried out in the study area to
investigate the vegetation structure and
relative coverages. Meanwhile, field
elevation surveys are conducted along with
each transect with 10 m interval to compare
with the findings in 1986 in order to estimate
accretion rate in the Kuantu wetland.
The results reveal that marsh habitat in
1978, dominated by Cyperus and Phragmites,
has changed into a swamp habitat dominated
by Kandelia and Phragmites in 1998. The
total area of Kandelia in the Kuantu wetland
from 0.08 ha in 1978 has increased to 24.14
ha in 1998, which is approximately 69.94%
to total vegetation area .
The elevation range for Kandelia and
Phragmites is 0.2~l.3 m and 0.3~1.6 m,
respectively. Elevation of bareland is below
1.2 m. The elevation range of the Kandelia
is significantly different from that of the
Phragmites (a=0.05). On average, the
accretion rate in the Kuantu wetland during
1986-1998 is about 2.0 cm/year.
Subjects
Kuantu wetland
Kandelia
accretion rate
SDGs
Publisher
臺北市：國立臺灣大學地理環境資源學系暨研究所
Type
report
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