Comparison of the composition of forest soil litter derived from three different sites at various decompositional stages using FTIR spectroscopy

Haberhauer, Georg; Rafferty, B.; Strebl, F.; Gerzabek, Martin H.

doi:10.1016/s0016-7061(98)00008-1

Cited by 212 publications

(123 citation statements)

References 11 publications

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“…5). The soil C : N ratio serves as an indicator of SOM decomposition status, where more decomposed SOM possesses a lower C : N ratio (Sollins et al, 2009) and a higher content of negatively charged functional groups (i.e., phenolic, carboxyl, and hydroxyl groups; Haberhauer et al, 1998). In this study, negative correlations between soil C : N and base cations (Table 2) suggest that more decomposed SOM is beneficial for the retention of soil base cations.…”

Section: Elevational Patterns Of Base Cations and Available Micronutrmentioning

confidence: 59%

Soil properties determine the elevational patterns of base cations and micronutrients in the plant–soil system up to the upper limits of trees and shrubs

Wang

Jiang

et al. 2018

Biogeosciences

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Abstract. To understand whether base cations and micronutrients in the plant-soil system change with elevation, we investigated the patterns of base cations and micronutrients in both soils and plant tissues along three elevational gradients in three climate zones in China. Base cations (Ca, Mg, and K) and micronutrients (Fe, Mn, and Zn) were determined in soils, trees, and shrubs growing at lower and middle elevations as well as at their upper limits on Balang (subtropical, SW China), Qilian (dry temperate, NW China), and Changbai (wet temperate, NE China) mountains. No consistent elevational patterns were found for base cation and micronutrient concentrations in both soils and plant tissues (leaves,

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Section: Elevational Patterns Of Base Cations and Available Micronutrmentioning

confidence: 59%

Soil properties determine the elevational patterns of base cations and micronutrients in the plant–soil system up to the upper limits of trees and shrubs

Wang

Jiang

et al. 2018

Biogeosciences

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“…The peak position at 3695 cm ¡1 corresponds to stretching vibrations of surface O-H groups of kaolinite for the two studied Oxisols (Filip et al 1988;Ledoux and White 1964), at 3620 cm ¡1 to illite for the studied Inceptisol (Sucha et al 1998), at 2922 cm ¡1 to C-H stretching vibrations in aliphatic biopolymers (Haberhauer et al 1998;Baddi et al 2003), at 1589 cm ¡1 to C = C stretching of aromatic C or N-H deformations (Filip and Kubát 2003), and at 1035 cm ¡1 to C-O stretching vibrations of polysaccharide C (Haberhauer et al 1998;Solomon et al 2005). Peaks around 1035 cm…”

Section: ¡1mentioning

confidence: 97%

Organic matter stabilization in soil microaggregates: implications from spatial heterogeneity of organic carbon contents and carbon forms

2007

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This study investigates the spatial distribution of organic carbon (C) in free stable microaggregates (20-250 m; not encapsulated within macroaggregates) from one Inceptisol and two Oxisols in relation to current theories of the mechanisms of their formation. Two-dimensional micro-and nano-scale observations using synchrotron-based Fourier-transform infrared (FTIR) and near-edge X-ray absorption Wne structure (NEXAFS) spectroscopy yielded maps of the distribution of C amounts and chemical forms. Carbon deposits were unevenly distributed within microaggregates and did not show any discernable gradients between interior and exterior of aggregates. Rather, C deposits appeared to be patchy within the microaggregates. In contrast to the random location of C, there were micronscale patterns in the spatial distribution of aliphatic C-H (2922 cm ). Aliphatic C forms and the ratio of aliphatic C/ aromatic C were positively correlated (r 2 of 0.66-0.75 and 0.27-0.59, respectively) to the amount of O-H on kaolinite surfaces (3695 cm ¡1 ), pointing at a strong role for organomineral interactions in C stabilization within microaggregates and at a possible role for molecules containing aliphatic C-H groups in such interactions. This empirical relationship was supported by nanometer-scale observations using NEXAFS which showed that the organic matter in coatings on mineral surfaces had more aliphatic and carboxylic C with spectral characteristics resembling microbial metabolites than the organic matter of the entire microaggregate. Our observations thus support models of C stabilization in which the initially dominant process is adsorption of organics on mineral surfaces rather than occlusion of organic debris by adhering clay particles.

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“…Aside from observing the changes occurring in peat on nutrient-release basis, the application of Fourier Transform Infrared Spectroscopy (FTIR) has been able provide more in-depth information on the process occurring in these organic matters without destructing the sample (Haberhaeur et al, 1998). The use of FTIR served as an important tool in providing information on the functional groups present in the organic matter and thus enabling to verify the presence of principal classes of organic compounds such as cellulose, lignins, lipids and so on.…”

Section: Introductionmentioning

confidence: 99%

Effect of Liming and Fertilizer Application in Hemic and Sapric of Tropical Peat: Phosphorus Mineralization, Infra-Red Spectroscopy and Microscopy

Reeza¹

2014

American Journal of Agricultural and Biological Sciences

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This study was conducted to investigate the changes in nutrient level P as well as in the structural and functional groups upon the decomposition of Hemic and Sapric peat material due to application of lime and fertilizers. The peat materials were left to decompose for 8 weeks under laboratory incubation and samples were taken for the determination of extractable P at 1 week interval. At 8 weeks, samples were sent for FTIR and SEM analysis. Although both types of peat material exhibit similar patterns in the mineralization of phosphorus, however, the amount of extractable phosphorus between Hemic and Sapric during the decomposition process differed. Addition of fertilizer (T3) resulted in a significantly large increase in extractable P compared to T1 and T2 but the effect was temporal as the extractable P declined throughout the incubation period. Sapric material displayed more absorption bands from the FTIR spectral analysis compared to Hemic although there were few similarities between the bands produced. Application of fertilizer in T3 caused the peaks that were similar with other treatments became weaker and different functional groups were shown at lower frequencies. Images from SEM showed that addition of lime and fertilizers caused the collapsing and degradation of the plant cell structures in the organic materials of the peat justifying the process of decomposition had occurred. Hemic and Sapric peat material showed some similarities as well as differences in extractable P, plant cell structures and spectral bands upon the application of lime and fertilizers.

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Comparison of the composition of forest soil litter derived from three different sites at various decompositional stages using FTIR spectroscopy

Cited by 212 publications

References 11 publications

Soil properties determine the elevational patterns of base cations and micronutrients in the plant–soil system up to the upper limits of trees and shrubs

Soil properties determine the elevational patterns of base cations and micronutrients in the plant–soil system up to the upper limits of trees and shrubs

Organic matter stabilization in soil microaggregates: implications from spatial heterogeneity of organic carbon contents and carbon forms

Effect of Liming and Fertilizer Application in Hemic and Sapric of Tropical Peat: Phosphorus Mineralization, Infra-Red Spectroscopy and Microscopy

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