賈魯河鄭州市區(qū)段有色可溶有機物(CDOM)的光譜學特征及源解析

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摘 要：本研究主要利用三維熒光技術(shù)（3DEEMs），并結(jié)合三維熒光區(qū)域積分法和平行因子分析法（3DEEMs-PARAFAC）對賈魯河內(nèi)水體中的CDOM的組成特征及來源進行解析，并根據(jù)光學參數(shù)確定CDOM來源。經(jīng)研究可得，賈魯河鄭州市區(qū)段水體中CDOM主要由2種熒光組分組成，即類腐殖質(zhì)熒光組分C1（240 nm，345 nm/405 nm），類蛋白質(zhì)熒光組分C2（

關(guān)鍵詞：賈魯河鄭州市區(qū)段;有色溶解有機物;三維熒光技術(shù);平行因子分析法

中圖分類號：X703      文獻標志碼：A     文章編號：1003-5168（2022）16-0081-06

DOI：10.19968/j.cnki.hnkj.1003-5168.2022.16.018

Spectroscopic Characteristics and Source of Colored Soluble Organic Matter （CDOM） in the Zhengzhou Urban Section of Jialu River

WU Ting    HOU Hailu    LIU Bing

（School of Chemistry and Chemical Engineering， Zhengzhou Normal University， Zhengzhou 450044，China）

Abstract： This study mainly uses three-dimensional fluorescence technology， combined with three-dimensional fluorescence region integration method and parallel factor analysis （3DEEMs PARAFAC） to analyze the composition characteristics and sources of CDOM in the water body of Jialu River， and determine the source of CDOM according to the optical parameters. It is concluded that CDOM in the water body of Zhengzhou urban section of Jialu river is mainly composed of two fluorescent components， namely humic like fluorescent component C1 （240 nm，345 nm/405 nm） and protein like fluorescent component C2 （< 250 nm，280 nm/338 nm）. On the whole， the CDOM in the water body of Zhengzhou urban section of Jialu River comes from land and microbial sources， but it is mainly land-based input， and the degree of humification is not high. Human activities have a great impact on the CDOM in the water body of Zhengzhou urban section of Jialu river.

Keywords：Zhengzhou urban section of Jialu River; colored dissolved organic matter; three dimensional fluorescence technology; parallel factor analysis

0 引言

有色溶解有機物（CDOM）作為一種吸收紫外可見光的有機物，是水體中溶解性有機物（DOC）中的主要組成部分。（剩余7601字）