Effects of Environmental Changes on the Depositional Fluxes of Atmospheric Nutrient in the East China Sea

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Project title

Code/計畫編號

NSC98-2611-M019-012

Translated Name/計畫中文名

東海長期觀測與研究(IV)---子計畫---大氣營養鹽物質沉降通量與環境變遷之關係

Project Coordinator/計畫主持人

Hung-Yu Chen

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Marine Environmental Informatics

Website

https://www.grb.gov.tw/search/planDetail?id=1887885

Year

2009

Start date/計畫起

01-08-2009

Expected Completion/計畫迄

01-07-2010

Bugetid/研究經費

1794千元

ResearchField/研究領域

海洋科學
大氣科學

"大氣輸送至海洋的有機性營養鹽與污染物，是影響海洋上層水生地化循環的重要因素之ㄧ。目前，這些物種在海洋表層水循環機制的相關研究，是目前全球環境變遷的一個重要的課題。因此，本計畫將藉由設置在基隆、澎佳嶼和海研二號等三處大氣採樣站，氣膠樣品的收集與成分分析，提供東海海域內生地化循環之氣膠背景資料。在本計畫中，將進行陸地與海上懸浮氣膠的採集；目的在於了解陸源性物質與海源性有機物質的輸送行為；其中，氮物種的分析主要分為無機性與有機性化合物兩大類。本計畫中，水溶性氮化合物主要是參考Chen and Chen (2008)，所發展的分析方法。除此，所收集的粒狀性樣品，將分析其主要陰離子與陽離子，這些參數將用來判斷地殼與海鹽之富集因子；也將分析石化燃料燃燒產物多環芳香烴化合物，以了解人為活動之影響。而其他化學與物理因子之探討，在此將使用氣膠統計學上常用的群組分析和主要組成分析。" "The transportations of organic and inorganic nutrients derived from the land to the ocean via the atmosphere are one of the main factors controlling the biogeochemical process in the upper ocean. Water soluble ion cycling in the upper ocean is, however, poorly understood. Therefore, this information is extremely valuable to assist biogeochemical cycle for the East China Sea. In this study, the land-base and ship-board stations (locate on the Keelung, Peng-Jia island and Ocean Research Vessel II) have been established to collect aerosol samples. The aims of these stations are to find out the transport mechanisms of inorganic and organic nutrient between continental and marine aerosols. The nitrogen species will be classified into inorganic and organic forms. The water soluble species will be analyzed by following the analytical methods which were established by Chen and Chen (2008). The major cations and anions on the marine aerosol will be analyzed. The enrichment factor has commonly been used to identify the strength of the crustal and sea salt sources. In addition, the combustion products, polycyclic aromatic hydrocarbons (PAHs) will also be analyzed to understand the influence degree of anthropogenic behaviors. To study the complexity and heterogeneous nature of aerosol particles in the region, cluster and principal component analysis will be used."

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Effects of Environmental Changes on the Depositional Fluxes of Atmospheric Nutrient in the East China Sea

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