本文選題：降水 + 無機離子�。� 參考：《中國環(huán)境科學》2017年05期

【摘要】：于2016年春夏季搭載航次采集了黃、東、南海及西北太平洋的海洋降水,用離子色譜法測定了其中的Cl~-、NO_3~-、SO_4~(2-)、PO_4~(3-)、Cl~-、NH_4~+、K~+、Mg~(2+)和Ca~(2+)離子濃度,并計算了其濕沉降通量及對海洋初級生產(chǎn)力的影響.結(jié)果表明,海洋降水樣品主要受海洋影響,海鹽離子濃度較高且不同海域主要離子類似;西北太平洋主要離子為Cl~-、Cl~-、SO_4~(2-)、Mg~(2+),黃海主要離子NO_3~-、SO_4~(2-)、Ca~(2+)、Cl~-,東海和南海主要離子均為Cl~-、Na~+、NO_3~-、SO_4~(2-).海洋降水中總離子濃度(mmol/L)的空間分布為西北太平洋(1.27)南海(0.53)東海(0.40)黃海(0.31).海洋降水中無機氮主要以硝態(tài)氮的形式存在,在氣團由陸地向海洋傳輸?shù)倪^程中,硝態(tài)氮在無機氮中的貢獻也不斷增加.Cl~-、NO_3~-、SO_4~(2-)、PO_4~(3-)、Na~+、NH_4~+、K~+、Mg~(2+)和Ca~(2+)的濕沉降通量[mg/(m~2·h)]范圍分別是:3.47~451.43、0.60~49.36、1.13~124.02、0.0015~0.094、1.21~383.37、0.06~7.57、0.25~28.86、0.17~47.39和0.37~27.24.在靠近源區(qū)、降水量多的區(qū)域主要無機離子的濕沉降通量較高.估算結(jié)果顯示,每小時降水所含氮磷可為各海域提供占初級生產(chǎn)力0.13‰~32.08%的新生產(chǎn)力.
[Abstract]:The precipitation in the Yellow, East, South China Sea and the Northwest Pacific Ocean was collected during the spring and summer of 2016, and the ion concentrations of Cl-No _ 3 ~ (-) -so _ 4 ~ (2-) ~ (2-) C ~ (4-) C ~ (4-) C ~ (4) C ~ (2) and Ca2 ~ (2) ions were determined by ion chromatography in the cities of Huanghuangdong, South China Sea and the Northwest Pacific Ocean. The wet deposition flux and its effect on marine primary productivity were calculated. The results show that the sea precipitation samples are mainly influenced by the ocean, the sea salt ion concentration is higher and the main ions in different sea areas are similar, the main ions in the Northwest Pacific Ocean are Cl-OCl-Cl-Cl-Na-Cl-NaNaNaNaSO4-SO4- (2-), the main ions of Huang Hai are NO3CO-SO4- SO4- (2-), and the main ions in the East China Sea and the South China Sea are Cl-Na-Na-Na-tia-3- so _ 4- (2-). The spatial distribution of total ion concentration (mmol / L) in ocean precipitation is as follows: northwest Pacific (1. 27) South China Sea (0. 53) and East China Sea (0. 40) Huang Hai (0. 31). 嫻鋒磱闄嶆按涓棤鏈烘愛涓昏浠ョ鎬佹愛鐨勫艦寮忓瓨鍦，

本文編號：2106016