Characterization of dissolved organic matter from saline soils by fluorescence spectroscopy

被引：34

作者：

Cilenti, Antonella ^{[1
]}

Provenzano, Maria Rosaria ^{[1
]}

Senesi, Nicola ^{[1
]}

机构：

[1] Univ Bari, Dipartimento Biol & Chim Agroforestale & Ambienta, I-70126 Bari, Italy

来源：

ENVIRONMENTAL CHEMISTRY LETTERS | 2005年 / 3卷 / 02期

关键词：

saline soils; organic matter; hydrophilic and hydrophobic fractions; fluorescence spectroscopy;

D O I：

10.1007/s10311-005-0001-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper hydrophilic (HI) and hydrophobic (HO) fractions of dissolved organic matter (DOM) extracted from soils at different degrees of salinisation were characterised by means of fluorescence spectroscopy in the emission, excitation and synchronous-scan modes. Results provided evidence of the different chemical nature of DOM fractions and allowed to distinguish hydrophilic and hydrophobic fractions extracted from the same soil substrate. The strong decrease in fluorescence intensity observed with the increasing salinity of the soils can be utilised to obtain information on the salinity level of different soil substrates by comparison of spectral fluorescence intensities.

引用

页码：53 / 56

页数：4

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