Spectroscopy and Spectral Analysis, Volume. 41, Issue 9, 2846(2021)
Fluorescence Spectroscopy Characteristics of Dissolved Organic Matter Analysis of Straw-Cow Dung Fermentation in Different Proportion
Dissolved organic matter (DOM) plays an important role in transforming organic matter into inorganic matter in the natural ecosystem. DOM can provide nutrition and energy for microorganisms and has an important role in indicating the transfer and transformation of humus. Cow dung can improve the humification efficiency of corn straw, which makes better use of agricultural waste. In order to study the characteristics of DOM in the fermentation process of corn straw-cow dung, which were treated with 2:8 (T1), 4:6 (T2), 6:4 (T3) and 8:2 (T4), we adopted three dimensional fluorescence spectrum - parallel factor analysis method to analyze the fluorescence components of DOM in the fermentation substrate. Fluorescence index (FI) and biological index (BIX) were used to analyze the source of DOM; humification index (HIX) was used to characterize the humification degree of fermentation, and the correlation among the maximum fluorescence intensity of DOM components was analyzed. The results showed that the sources of DOM were influenced by both autochthonous and allochthonous sources (FI>1.4, 0.8
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Yan LI, Dan WEI, Wei WANG, Liang JIN, Jian-li DING, Shan-shan CAI, Yu HU, Yang BAI. Fluorescence Spectroscopy Characteristics of Dissolved Organic Matter Analysis of Straw-Cow Dung Fermentation in Different Proportion[J]. Spectroscopy and Spectral Analysis, 2021, 41(9): 2846
Category: Research Articles
Received: Jul. 8, 2020
Accepted: --
Published Online: Oct. 29, 2021
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