由沉積物穩定碳同位素分析探討臺灣西部過去二十萬年之氣候變遷
Other Title
Climate change of past 200 kys in southwestern Taiwan: using stable
carbon isotope analysis of core sediments
carbon isotope analysis of core sediments
Date Issued
2001
Date
2001
Author(s)
DOI
892116M002048
Abstract
In this study, we measured the C/N
ratio and d 13 C of San-liao-wan, Zai-kong
and Yihju core sediments. Combining with
C/N and d 13 C of the riverine sediments of
Tseng-wen River and Chiku lagoon
sediments as end members, the
environmental change of southwestern
Chianan plain can be clearly understood.
Our results show a very good
correlation between C/N and d 13 C. According to the d 13 C data, this coastal area
went through a period of time that the d 13 C
shift to a heavy value, implying that C4 plant
was an important source of organic matters.
The flourishing of C4 plant indicates that the
climate was relatively arid from early OIS 2
to the early OIS 1. The scattered peaks show
that although the profiles of C/N and d 13 C
have good correlations, there are still some
locally environmental changes.
Subjects
Chianan plain
Carbon Isotope
C/N ratio
locally environmental
change
change
SDGs
Publisher
臺北市：國立臺灣大學地質科學系暨研究所
Type
report
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