本文關(guān)鍵詞：冬季東海海水中碳水化合物的分布及影響因素　出處：《海洋環(huán)境科學(xué)》2017年04期 　論文類型：期刊論文

  更多相關(guān)文章： 溶解碳水化合物 分布 PN斷面 東海

【摘要】：本文采用TPTZ法測定了2010年冬季東海48個(gè)站位海水中溶解單糖(MCHO)、溶解多糖(PCHO)和溶解總糖(TCHO)的濃度,并對(duì)其水平分布和PN斷面9個(gè)站位的垂直分布特征進(jìn)行了研究。結(jié)果表明,表層海水中MCHO、PCHO與TCHO的平均濃度和范圍分別為3.8(0.7~14.9)、6.9(1.1~20.8)和10.7(3.0~25.0)μmol C/L。水平分布大致呈現(xiàn)由近岸向外海遞減的趨勢,但是高值區(qū)各有不同,受各種水團(tuán)如長江沖淡水、臺(tái)灣暖流和黑潮的作用明顯。冬季東海陸架海區(qū)海水垂直混合強(qiáng)烈,MCHO、PCHO及TCHO濃度分布在垂直方向上無明顯規(guī)律,均在混合層(0~100 m)出現(xiàn)高值區(qū)分布。對(duì)長江口3個(gè)斷面碳水化合物和環(huán)境因子的相關(guān)性研究表明,TCHO與溫度、鹽度均呈現(xiàn)顯著的線性負(fù)相關(guān),MCHO與葉綠素a(Chl a)呈現(xiàn)顯著的線性正相關(guān)關(guān)系。
[Abstract]:The East China Sea in winter 2010 dissolved monosaccharides 48 stations in seawater were determined by TPTZ (MCHO), dissolved polysaccharide (PCHO) and dissolved carbohydrate (TCHO) concentration, and the vertical distribution of the horizontal distribution and PN section of 9 stations were studied. The results showed that the surface of sea water is MCHO, the average the concentration and range of PCHO and TCHO were 3.8 (0.7~14.9), 6.9 (1.1~20.8) and 10.7 (3.0~25.0) mol C/L. level distribution is presented by the open sea decreasing trend, but the high value areas are different, affected by various water masses such as the Yangtze River diluted water, Taiwan warm current and the Kuroshio effect in the East China Sea in winter. In the continental shelf sea strong vertical mixing, MCHO, PCHO and TCHO concentration had no obvious regularity in the vertical direction, both in the mixed layer (0~100 m) high value area distribution. Research on the relationship between the 3 sections of the Yangtze River Estuary carbohydrates and environmental factors showed that temperature and TCHO There is a significant linear negative correlation between the salinity and the linear positive correlation between MCHO and chlorophyll a (Chl a).

【作者單位】： 中國海洋大學(xué)化學(xué)化工學(xué)院;
【基金】：國家自然科學(xué)基金重點(diǎn)項(xiàng)目(41030858) 教育部“長江學(xué)者”獎(jiǎng)勵(lì)計(jì)劃 山東省“泰山學(xué)者”建設(shè)工程
【分類號(hào)】：P734
【正文快照】： 在海洋碳循環(huán)研究中,溶解有機(jī)碳的研究是非常重要的一環(huán),它的組成、來源、分布和循環(huán)等生物地球化學(xué)特性影響了很多海洋生物化學(xué)過程[1]。碳水化合物是海洋溶解有機(jī)碳的重要組成部分,是浮游植物光合作用的直接產(chǎn)物[2],是細(xì)胞結(jié)構(gòu)的主要組分和重要的能量儲(chǔ)存形式[3],在海洋碳循，

本文編號(hào)：1362013