Soil carbon storage and stabilisation in andic soils: A review

Matus, Francisco; Rumpel, Cornélia; Neculmán, Rodrigo; Panichini, Marcelo; Mora, Marı́a de la Luz

doi:10.1016/j.catena.2014.04.008

Cited by 136 publications

(91 citation statements)

References 129 publications

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“…This relationship was expected to occur only in volcanic soils, because of the potential of Al p to complexes SOM (Matus et al, 2014). However, in kaolinitic soils, more crystallinity clay exerted a small stabilizing effect.…”

Section: Relationship Between Metabolic Quotient (Qco 2 ) and C Stabimentioning

confidence: 99%

Soil microorganisms and enzyme activity at different levels of organic matter stability

Merino

Godoy

Matus

2016

J. Soil Sci. Plant Nutr.

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Soil biological activity has important implications for soil carbon (C) sequestration. However, very little is known about the environmental factors, particularly the effect of soil mineralogy on availability of C for soil microorganisms. In this study, we have investigated the influences of soil type (clay mineralogy) on C mineralization and its effects on biological activity at different levels of soil organic matter stability. Two soils an allophanic, derived from recent volcanic ash and a kaolinitic, resulting from metamorphic parent materials were physically fractioned in to light (LF, coarse sand 250-2000 µm), intermediate (IF, fine sand53-250 µm) and mineral (MF, silt and clay < 53 µm) fractions. Several biological and biochemical analyses at Ah horizons of mineral soil and physical fractions were conducted: soil respiration, enzymatic activities, carbohydrates and microbial biomass, amongst others soil variables. The results indicated that the bulk soil and physical fractions had a significant impact on cumulative C mineralized after 30 days of incubation and soil enzyme activities. More than 76% of total C-CO 2 variation was explained by stepwise multiple regression analysis including factors such as soil enzymes (β-glucosidase, dehydrogenase and phosphatase) and inorganic P. Soil ATP extraction was a good indicator of microbial activity, because of a positive and significant correlation among ATP and i) C-CO 2 and ii) metabolic quotient (soil respiration rate divided by microbial biomass). We also found an inverse and significant relationship between Al pyrophosphate (Al bound to SOM) and the C-CO 2 in volcanic soil, whereas the same correlation did not occur in kaolinitic soil. Our results confirmed a greater stabilization capacityof MF in allophanic than in kaolinitic soils due to the amorphous minerals clay materials.

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Section: Relationship Between Metabolic Quotient (Qco 2 ) and C Stabimentioning

confidence: 99%

Soil microorganisms and enzyme activity at different levels of organic matter stability

Merino

Godoy

Matus

2016

J. Soil Sci. Plant Nutr.

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“…In this study, phosphatase activities were the highest (214.35±19.13 µg p-Np/h/g of dry soil), that can be due to their ability to persist in soils for long periods by binding to soil organic matter and clays (Matus, 2014). The high content of phosphatase in soils may also be due to the poor availability of this element in soils therefore to a high P demand of plants and microorganisms living in soil.…”

Section: Plants Improve Soil Biological Activitiesmentioning

confidence: 51%

Effect of maize and peanut crops on Ivory Coast northern soil biological activities and their response to arbuscular mycorrhizal fungi inoculation

Koffi¹,

Ndoye²,

Dabonne³

et al. 2018

Afr. J. Microbiol. Res.

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The overuse of chemical fertilizers in agriculture remains an environmental concern, especially in sub-Saharan areas of Africa where soil degradation lead to low crop yield. Crop inoculation with beneficial microorganisms appears a good alternative to reduce chemical substances and improve yield. In this regard, studies on soil biological activities and inoculation experiments on maize (Zea mays L.) and peanut (Arachis hypogaea L.) crops were conducted. The aim of this work was to evaluate the effect of these crops on soil microbial activities and to assess their response to inoculation with two fungi (Glomus aggregatum and Glomus etunicatum) alone or in combination. Rhizospheric and non rhizospheric soils were collected in peanut and maize fields at Takali in northern Côte d'Ivoire. Soil enzymes activities, total microbial biomass, AMF spore and rhizobia densities were determined in these soils. Then, mycorrhizal inoculation experiment of these plant species was conducted in a greenhouse located at Nangui Abrogoua University, Abidjan, Côte d'Ivoire. After three months, plant growth and yield, mycorrhizal and nodulation parameters were measured. Results showed that maize has significantly improved enzymes activities, spore density and total microbial biomass of soil. Effect of peanut was only significant on chitinase. Moreover, soil rhizobia density was reduced under this crop effect. Maize significantly improved these parameters more than peanut. Inoculation results showed a significant enhancement of the height and shoot dry weight of maize with single inoculation with G. aggregatum or G. etunicatum even if a low mycorrhization rate was observed. However, in peanut, the mixed inoculants (G. aggregatum + G. etunicatum) significantly increased the pod weight and nodulation parameters. Results showed the importance of plant cover in the improvement of soil biological quality including enzymes activities and microbial community and suggested that the effect of mycorrhizal inoculation is influenced by many factors as plant species, AMF and soil environment characteristics.

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“…In the reclaimed soil, the content of Al+H was lower than in the native soil, which is also in agreement with the fact that after mechanically removing the top 8.6 m, the experimental plots were established on saprolite, a less weathered regolith present in the original native Oxisol (Kitamura et al 2008;Taboada-Castro et al 2009). Complementary information also shows that the amount of extractable Fe and Al influences the stabilization of soil C and its availability to soil microorganisms in non-volcanic and volcanic ash derived soils (Monreal et al 1981;Parfitt and Parshotam 2002;Matus et al 2014). Thus, our data suggest that most SOM may be found as organo-mineral complexes in the clay fraction, where Fe 2 O 3 , Al oxides (i.e., gibbsite), and kaolinite predominate (Guilherme and Anderson 1998).…”

Section: Discussionmentioning

confidence: 80%

Mass spectrometry of organic matter influenced by long-term pedogenesis and a short-term reclamation practice in an Oxisol of Brazil

et al. 2016

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Little is known about the influence of soil pedogenesis and reclamation practices on the chemical composition of soil organic matter (SOM) in eroded Oxisol. We examined the long-term influence of pedogenesis and 8 years of a reclamation practice on SOM in the top 5 cm of an artificially eroded Oxisol of Brazil. The experimental site involved replicated treatments established under native vegetation, and an adjacent site whose top 8.6 m had been removed mechanically (eroded reference). The eroded Oxisol was under reclamation with native tree and grass species, and addition of sewage sludge. Pyrolysis field ionization mass spectrometry was used to characterize SOM. The abundance of most classes of SOM and soil carbon decreased in the following order: native > reclaimed >> eroded soil. Relative to the eroded reference, SOM in the native soil was highly humified and stabilized by inorganic colloids of iron, aluminum, and silicon. Humified and thermally stable SOM in the native and reference eroded soils involved mostly alkylaromatics, lipids, phenols+lignin monomers, lignin dimers, and N-heterocyclics. The reclaimed soil SOM was less humified and less stable than the native Oxisol, showing significant contributions of carbohydrates, amino acids, and sterols derived from sewage sludge and plant residues.Key words: oxisol, soil organic matter, chemical classes, mass spectrometry, erosion, soil reclamation.Résumé : On sait peu de choses concernant l'influence de la pédogenèse et des pratiques de restauration du sol sur la composition chimique de la matière organique dans les oxisols érodés. Les auteurs ont étudié les effets à long terme de la pédogenèse et de 8 années de restauration du sol sur la matière organique présente dans la couche supérieure de 5 cm d'un oxisol du Brésil érodé artificiellement. Le site expérimental a fait l'objet de traitements répétés sous la végétation indigène, tandis qu'on a retiré mécaniquement la couche supérieure de 8,6 m d'un site adjacent afin d'en faire un site témoin sur le plan de l'érosion. L'oxisol érodé avait subi des travaux de restauration sous forme de plantation d'espèces indigènes d'arbres et de graminées, après enrichissement avec des boues usées. Les chercheurs ont recouru à un spectromètre de masse à ionisation portatif avec pyrolyse pour caractériser la matière organique. L'abondance de la plupart des classes de matière organique et de carbone organique diminue dans l'ordre suivant : sol intact > sol restauré >> sol érodé. Lorsqu'on effectue une comparaison avec le témoin érodé, on constate que la matière organique du sol naturel est très humifiée et que des colloïdes du fer, de l'aluminium et du silicium la stabilisent. La matière organique humifiée et thermiquement stable du sol naturel et du sol érodé utilisé comme témoin renferme surtout des alkylaromatiques, des lipides, des phénols combinés à des monomères de la lignine, des dimères de la lignine et des N-hétérocycliques. Celle du sol restauré est moins humifiée et moins stable que celle de l'oxisol natur...

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Soil carbon storage and stabilisation in andic soils: A review

Cited by 136 publications

References 129 publications

Soil microorganisms and enzyme activity at different levels of organic matter stability

Soil microorganisms and enzyme activity at different levels of organic matter stability

Effect of maize and peanut crops on Ivory Coast northern soil biological activities and their response to arbuscular mycorrhizal fungi inoculation

Mass spectrometry of organic matter influenced by long-term pedogenesis and a short-term reclamation practice in an Oxisol of Brazil

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