本文選題：渤海 + 有色溶解有機(jī)物(CDOM)��； 參考：《海洋科學(xué)進(jìn)展》2016年01期

【摘要】：依據(jù)2011-08和2012-05的現(xiàn)場調(diào)查資料,分析渤海水體有色溶解有機(jī)物(CDOM)的光譜吸收特性,研究其分布變化特征及影響因素。結(jié)果表明:渤海水體a_(355)的變化范圍為0.38~4.15m~(-1),均值為1.33m~(-1),表現(xiàn)為萊州灣渤海灣遼東灣,春季夏季的時空變化特征;表層海水a(chǎn)_(355)的水平分布基本呈近岸及河口區(qū)高、遠(yuǎn)岸稍低的變化規(guī)律。光譜斜率S_(275~295)和S_(350~400)的變化范圍分別為0.011~0.074nm~(-1)和0.012~0.195nm~(-1),春季整體高于夏季。光譜斜率比S_R的變化范圍為0.25~2.25,平均值為0.88,夏季略高于春季,其中春季渤海灣最高,萊州灣次之,遼東灣最低;夏季則萊州灣高于渤海灣。渤海春季水體CDOM主要來源于生物現(xiàn)場生產(chǎn)和底層沉積物再懸浮釋放,夏季則主要受陸源徑流輸入的影響。不同時空條件下CDOM在咸淡水的混合過程中也有著不同的表現(xiàn),春季多呈非保守行為;夏季萊州灣呈保守行為,渤海灣則呈非保守行為。
[Abstract]:Based on the field investigation data of 2011-08 and 2012-05, the spectral absorption characteristics of CDOM in Bohai Sea were analyzed, and the distribution and variation characteristics of CDOM and its influencing factors were studied. The results show that the range of variation of sea water in Bohai Sea is 0.38 ~ 4.15 m ~ (-1) and the average value is 1.33 m ~ (-1), which shows the temporal and spatial variation characteristics of Liaodong Bay in Laizhou Bay in spring and summer, and the horizontal distribution of surface sea water (a _ (35 ~ 5) is basically a regularity of high inshore and estuary area and slightly lower far shore. The range of spectral slope is 0.011 ~ 0.074 nm ~ (-1) and 0.012 ~ (0.195 nm ~ (-1) ~ (-1) respectively, which is higher in spring than in summer. The variation range of spectral slope ratio to SR is 0.25 ~ 2.25 and the average value is 0.88, which is slightly higher in summer than that in spring, in which the Bohai Bay is the highest in spring, the Laizhou Bay is the second, and the Liaodong Bay is the lowest, and in summer the Laizhou Bay is higher than the Bohai Bay. The CDOM of Bohai Sea water in spring is mainly derived from biological field production and resuspended release of bottom sediments, while in summer it is mainly affected by terrestrial runoff input. Under different time and space conditions, CDOM also showed different behavior in the mixing process of salt and fresh water, mostly non-conservative behavior in spring, conservative behavior in Laizhou Bay in summer and non-conservative behavior in Bohai Bay.
【作者單位】： 國家海洋局第一海洋研究所;青島海洋科學(xué)與技術(shù)國家實(shí)驗(yàn)室海洋生態(tài)與環(huán)境科學(xué)功能實(shí)驗(yàn)室;
【基金】：海洋公益性行業(yè)科研專項(xiàng)——海洋藻類和細(xì)菌固碳(儲碳)能力和潛力評估技術(shù)研究(201105021)和濱海濕地固碳能力提升技術(shù)及應(yīng)用示范(201205008)
【分類號】：P734.2

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本文編號：1969466