Effects of Global Change on Carbonate System in the Seas Surrounding Taiwan in the Western North Pacific

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基本資料

Project title

Code/計畫編號

NSC101-2611-M019-008-MY3

Translated Name/計畫中文名

全球變遷對西北太平洋臺灣海域海洋生物地球化學與生態系統影響之長期觀測與研究（一）－子計畫：全球變遷因子對東海及西北太平洋黑潮海域碳酸鹽系統變動的影響

Project Coordinator/計畫主持人

Wen-Chen Chou

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Institute of Marine Environment and Ecology

Website

https://www.grb.gov.tw/search/planDetail?id=8111050

Year

2014

Start date/計畫起

01-08-2014

Expected Completion/計畫迄

01-07-2015

Bugetid/研究經費

1906千元

ResearchField/研究領域

海洋科學

"自工業革命開始，海洋吸收了大約三分之一人為活動所排放的CO2。此過程雖減緩了大氣中CO2濃度的增加速度，進而舒緩了氣候變遷對人類社會所造成的衝擊，但它卻也同時造成了海水pH值和碳酸鈣飽和度的下降，此現象統稱為海洋酸化。海洋酸化會減緩鈣質生物的鈣化速率，進而對海洋的生態環境造成不利的影響。本計晝擬針對東海及台灣東南外海黑潮測線海水pH值和碳酸鈣飽和度的時、空變化進行研究，其中東海代表一個受優養化影響的系統；黑潮測線則代表一個未受優養化影響之參考系統。藉由比較上述兩個系統的異同，將可釐清不同海洋系統受海洋酸化影響程度的差異，以及優養化現象在其中所扮演的角色。本計晝擬探討之研究課題有四：（1) 東海及黑潮測線海水pH值和碳酸鈣飽和度之時空變化及其控制機制；（2)工業革命迄今，人為CO2穿透對東海及黑潮測線海水pH值和碳酸鈣飽和度之影響程度；（3)模擬若大氣CO2濃度持續增加，東海及黑潮測線海水pH值和碳酸鈣飽和度未來可能的變化情形；（4)分析優養化和湧升作用是否加速了東海海水的酸化過程，並模擬若優養化持續惡化，將對東海陸棚底水之pH值和碳酸鈣飽和度的變化造成何種影響。" "Since the beginning of the industrial revolution, the ocean has absorbed about one-third of CO2 emission from human activities, which has a significant effect on marine ecological environment by reducing seawater pH and the saturation states of important calcium carbonate minerals through a process termed ocean acidification. In order to better understand the current status of ocean acidification in the seas surrounding Taiwan, this project proposes to investigate the temporal and spatial variations of seawater pH and the saturation states of calcium carbonate in two distinct oceanic regimes around Taiwan: the East China Sea (ECS) and the Kuroshio off southeastern Taiwan. The ECS represents a system with the influence of eutrophication, and the Kuroshio water serves as a reference system without the influence of eutrophication. Comparing the results from the two different oceanic regimes, the effect of eutrophication on seawater acidification can be separated from that of the increase of atmospheric CO2. The main objectives of this proposal include: (1) to elucidate the mechanism controlling the temporal and spatial variations of seawater pH and saturation states of calcium carbonate in the ECS and the Kuroshio waters; (2) to quantify the influence of anthropogenic CO2 on seawater pH and saturation states of calcium carbonate in the ECS and the Kuroshio waters; (3) to predict the future changes in seawater pH and saturation states of calcium carbonate, due to the continuing increase of atmospheric CO2, in the ECS and the Kuroshio waters; and (4) to examine the role of eutrophication playing on the acidification of bottom water of the ECS. "

Keyword(s)

海洋酸化
pH
碳酸鈣飽和度
東海
黑潮
ocean acidification
pH
saturation state of calcium carbonate
East China Sea
Kuroshio

DSpace CRIS

Effects of Global Change on Carbonate System in the Seas Surrounding Taiwan in the Western North Pacific

基本資料

Description