The study of statistics test analysis and fluxes of inorganic and organic nitrogen in dry deposition of the coastal area of northern Taiwan

• Main Authors: Yao-Wen Tsao, 曹耀文
• Other Authors: Hung-Yu Chen
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/04599885174568516104

碩士 === 國立臺灣海洋大學 === 海洋環境資訊學系 === 98 === To estimate nitrogen fluxes, this study analyzed datasets of dissolved inorganic nitrogen (DIN) and dissolved organic nitrogen (DON) in atmospheric particles. The chemical data (548) were derived from studies undertaken from September 2003 to July 2007. The derived air masses were classified using air mass backward trajectories (AMBTs), and categorized into continental, oceanic and local sources. A one-sample Student’s t-test was used to analyze the datasets where the concentrations of nitrogen species were normally distributed. Significant results for chemical species were considered to be normally distributed (e.g. NH4+ from continental sources; NO3 from oceanic source; DON from local sources). Other species were classified as abnormal distributions (e.g. NH4+ from oceanic sources; NO3 from continental sources). Outliers were removed for analysis of fluxes of water soluble inorganic and organic nitrogen species. The estimated fluxes were: 4.30 mmol m2 year1 NH4+; 0.09 mmol m2 year1 NO2; 5.78 mmol m2 year1 NO3; 10.1 mmol m2 year1 DIN; and 2.29 mmol m2 year1 DON.