Application of chemometric methods in the evaluation of chemical and spectroscopic data on organic matter from Oxisols in sewage sludge applications

被引:63
作者
dos Santos, Larissa Macedo [3 ,4 ]
Simoes, Marcelo Luiz [4 ]
de Melo, Wanderley Jose [2 ]
Martin-Neto, Ladislau [4 ]
Pereira-Filho, Edenir Rodrigues [1 ]
机构
[1] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
[2] Univ Estadual Paulista, Dept Tecnol, BR-14884900 Jaboticabal, SP, Brazil
[3] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
[4] Embrapa Instrumentacao Agropecuaria, BR-13560970 Sao Carlos, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
Chemometric; PCA; Humification degree; Soil organic matter; Sewage sludge; ELECTRON-SPIN-RESONANCE; HUMIC SUBSTANCES; HUMIFICATION; ACIDS; NMR; C-13; CLASSIFICATION; AGGREGATION; AMENDMENTS; FRACTIONS;
D O I
10.1016/j.geoderma.2009.12.006
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
Chemometric methods can contribute to soil research by permitting the extraction of more information from the data. The aim of this work was to use Principal Component Analysis to evaluate data obtained through chemical and spectroscopic methods on the changes in the humification process of soil organic matter from two tropical soils after sewage sludge application. In this case, humic acids extracted from Typic Eutrorthox and Typic Haplorthox soils with and without sewage sludge application for 7 consecutive years were studied. The results obtained for all of the samples and methods showed two clusters: samples extracted from the two soil types. These expected results indicated the textural difference between the two soils was more significant than the differences between treatments (control and sewage sludge application) or between depths. In this case, an individual chemometric treatment was made for each type of soil. It was noted that the characterization of the humic acids extracted from soils with and without sewage sludge application after 7 consecutive years using several methods supplies important results about changes in the humification degree of soil organic matter, These important result obtained by Principal Component Analysis justify further research using these methods to characterize the changes in the humic acids extracted from sewage sludge-amended soils. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:121 / 127
页数:7
相关论文
共 47 条
[31]   C-14-labelled ryegrass turnover and residence times in soils varying in clay content and mineralogy [J].
Saggar, S ;
Parshotam, A ;
Sparling, GP ;
Feltham, CW ;
Hart, PBS .
SOIL BIOLOGY & BIOCHEMISTRY, 1996, 28 (12) :1677-1686
[32]   ELECTRON-SPIN RESONANCE AS A GUIDE TO THE DEGREE OF HUMIFICATION OF PEATS [J].
SCHNITZER, M ;
LEVESQUE, M .
SOIL SCIENCE, 1979, 127 (03) :140-145
[33]  
Schnitzer M., 1982, Methods of soil analysis. Part 2. Chemical and microbiological properties, P581
[34]  
Schnitzer M., 1972, HUMIC SUBSTANCES ENV
[35]   CHARACTERIZATION, DIFFERENTIATION, AND CLASSIFICATION OF HUMIC SUBSTANCES BY FLUORESCENCE SPECTROSCOPY [J].
SENESI, N ;
MIANO, TM ;
PROVENZANO, MR ;
BRUNETTI, G .
SOIL SCIENCE, 1991, 152 (04) :259-271
[36]  
Senesi N, 1996, HE SCI COMPOSTING, DOI [10.1016/B978-044481516-3/50015-3, DOI 10.1016/B978-044481516-3/50015-3]
[37]   A comparative survey of recent results on humic-like fractions in organic amendments and effects on native soil humic substances [J].
Senesi, Nicola ;
Plaza, Cesar ;
Brunetti, Gennaro ;
Polo, Alfredo .
SOIL BIOLOGY & BIOCHEMISTRY, 2007, 39 (06) :1244-1262
[38]  
Silverstein R.M., 1991, SPECTROSCOPIC IDENTI
[39]   Molecular structures and associations of humic substances in the terrestrial environment [J].
Simpson, AJ ;
Kingery, WL ;
Hayes, MHB ;
Spraul, M ;
Humpfer, E ;
Dvortsak, P ;
Kerssebaum, R ;
Godejohann, M ;
Hofmann, M .
NATURWISSENSCHAFTEN, 2002, 89 (02) :84-88
[40]   Determining the molecular weight, aggregation, structures and interactions of natural organic matter using diffusion ordered spectroscopy [J].
Simpson, AJ .
MAGNETIC RESONANCE IN CHEMISTRY, 2002, 40 (SPEC. ISS.) :S72-S82