Determining the distributions of soil carbon and nitrogen in particle size fractions using near-infrared reflectance spectrum of bulk soil samples

被引：80

作者：

Barthes, Bernard G. ^{[1
]}

Brunet, Didier ^{[1
]}

Hien, Edmond ^{[2
]}

Enjalric, Frank ^{[3
]}

Conche, Sofian ^{[1
]}

Freschet, Gregoire T. ^{[1
]}

d'Annunzio, Remi ^{[4
,5
]}

Toucet-Louri, Joele ^{[1
]}

机构：

[1] Montpellier SupAgro, IRD SeqBio, F-34060 Montpellier 1, France

[2] Univ Ouagadougou, UFT SVT, Ouagadougou, Burkina Faso

[3] Montpellier SupAgro, Dept PERSYST, CIRAD, UMR Syst, F-34060 Montpellier 1, France

[4] INRA, UMR LERFOB, F-54280 Champenoux, France

[5] CIRAD, UPR Ecosyst Plantat, F-34398 Montpellier 5, France

来源：

SOIL BIOLOGY & BIOCHEMISTRY | 2008年 / 40卷 / 06期

关键词：

soil organic matter; particle size fractions; near-infrared reflectance spectroscopy (NIRS);

D O I：

10.1016/j.soilbio.2007.12.023

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

This study aimed at assessing the potential of near-infrared reflectance spectroscopy (NIRS) for determining the distribution of soil organic matter (SOM) in particle size fractions, which has rarely been attempted. This was done on sandy soils from Burkina Faso (three sites) and Congo-Brazzaville (one site). Over the total sample set, NIRS accurately predicted carbon (C) and nitrogen (N) concentrations (g kg(-1) fraction) in the fraction <20 mu m. When considering Burkina Faso only, predictions were improved in general; those of C and N amounts (g kg(-1) soil) became accurate for the fraction <20 mu m but not for the coarser fractions, probably due to heterogeneous SOM repartition. However, most SOM being <20 mu m in general, NIRS could be considered promising for determining SOM size distribution. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1533 / 1537

页数：5

共 16 条

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