碩士 / 國立高雄海洋科技大學 / 海洋環境工程研究所 / 103 / Marcet Principle indicates the composition of the main elements (> 0.05 mmol/kg) in the ocean is approximately constant. Chemical Oceanographer used the Ca2+/Salinity relationship–[Ca2+] mol/kg = 2.934 ×10-4 • S to calculate Ca2+ concentration in the ocean. However, in the estuary freshwater inputs may disturb the Ca2+/S relationship.
Currently, some areas (Japans sea and Mississippi river etc.) have been rebuilt the Ca2+/S relationship. Therefore this study wanted to understand the relationship between Ca2+ concentration and salinity at the Kaoping estuary which is the largest river–sea interaction systems in southern Taiwan. Using Tsunogai’s EGTA titration method to determine Ca2+ concentration in natural water, the results show that the linearity of Ca2+/S in dry season is [Ca2+] mol/kg = 2.32×10-4‧S+2.219×10-3, and in wet season is [Ca2+] mol/kg = 2.52×10-4‧S+1.655×10-3 respectively.
The change rate with [Ca2+]/S of Kaoping River’s estuary is about 16 〜 22% lower than that in the open ocean. Therefore Ca2+ concentration is a key to CaCO3 saturation at the estuary.
| Identifer | oai:union.ndltd.org:TW/103NKIM0282003 |
| Date | January 2015 |
| Creators | TAI, HSIU-CHEN, 戴秀蓁 |
| Contributors | WANG,SHU-LUN, 王樹倫 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 66 |
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