Submicron structures provide preferential spots for carbon and nitrogen sequestration in soils

Vogel, Cordula; Mueller, Carsten W.; Höschen, Carmen; Buegger, Franz; Heister, Katja; Schulz, Stefanie; Schloter, Michael; Kögel‐Knabner, Ingrid

doi:10.1038/ncomms3947

Cited by 327 publications

(298 citation statements)

References 44 publications

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“…Mineral-N supplementation of N-poor residues can increase C recovery by improving the efficiency of microbial biomass production, decreasing losses of CO 2 -C, and, especially, by increasing deposition of microbial products and debris, which are the main sources of stable SOM associated with mineral particles (Craine et al, 2007;Grandy and Neff , 2008;Manzoni et al, 2008;Vogel et al, 2014). Nevertheless, in this study, the addition of mineral N affected residue-C recovery only in the less stable SOM fraction (LF) (Figure 1a).…”

contrasting

confidence: 39%

Effect of Mineral Nitrogen on Transfer of 13C-Carbon from Eucalyptus Harvest Residue Components to Soil Organic Matter Fractions

Demolinari

Sousa

Silva

et al. 2017

Rev. Bras. Ciênc. Solo

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ABSTRACT:The amount of harvest residues retained in Eucalyptus plantations strongly influences soil organic matter (SOM), but the efficiency of conversion to SOM may vary according to the type of residue. This study evaluated the recovery of C from Eucalyptus residue components -leaves, bark, branches, roots, and a mix of all residues -in different SOM fractions with or without mineral-N supplementation (200 mg kg -1 of N). Variation in natural 13 C abundance was used to trace the destination of residue-derived C in the soil.The C content of the light fraction (LF) and heavy fraction (HF) of SOM increased over a 240-days decomposition period in response to incorporation of Eucalyptus residues in the soil. Bark and leaf residues showed the best results. Bark residues increased the C content of the HF by 45 % over the initial condition. Leaf residues made the largest contribution to LF-C, increasing it by 8.6 times. Leaf residues also led to the highest N contents in the LF and HF, whereas branches, roots, and the mixture of residues caused significant net transfers of N from the HF. Mineral-N supplementation had no effect on stabilization of organic C in the HF of SOM, in which the C could be maintained for longer periods due to physical/colloidal protection against microbial decomposition. These results highlight the importance of keeping Eucalyptus harvest residues in the planted area, especially the bark, which is the most abundant harvest residue component under field conditions, for maintenance of SOM.

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confidence: 39%

Effect of Mineral Nitrogen on Transfer of 13C-Carbon from Eucalyptus Harvest Residue Components to Soil Organic Matter Fractions

Demolinari

Sousa

Silva

et al. 2017

Rev. Bras. Ciênc. Solo

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“…The role of clay minerals like illite might be to sequester large amounts of the soil organic matter (Kaiser and Guggenberger, 2003;Vogel et al, 2014) thereby affecting the nutrient availability . The assumption of the reduced availability of nutrients after 3 months is furthermore supported by the significant impact of charcoal, which may adsorb nutrients and reduce their bioavailability (Sohi et al, 2010;Lehmann et al, 2011).…”

Section: Alkane Degraders In Maturating Soilsmentioning

confidence: 99%

“…Several studies therefore concluded that the amount of organic substrates and nutrients present was enough to support activity of the total microflora Babin et al, 2013;Pronk et al, 2013). However, the lower abundance of alkane degraders in soils, maturated for 12 months, in conjunction with the respective stronger response towards litter addition might reflect a depletion of easily bioavailable specific substrates (namely, alkanes) in these soils by degradation and/or maturation-driven reallocation of nutrients to smaller, poorly accessible soil structures (Kö gel- Knabner et al, 2008;Pronk et al, 2012;Vogel et al, 2014).…”

mentioning

confidence: 99%

“…Such abiotic properties of BGIs may strongly influence microbial community structure and function. For instance, Vogel et al (2014) demonstrated that organic carbon preferentially attaches to rough surfaces of mineral clusters, turning them into hotspots for microbial activity. In this study, we investigated the abundance and community structure of a functional microbial guild (alkane degraders harbouring the alkane monooxygenase gene alkB) at two different time points during the maturation of artificial soils formed from different parental materials.…”

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confidence: 99%

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Clay minerals and metal oxides strongly influence the structure of alkane-degrading microbial communities during soil maturation

et al. 2014

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Clay minerals, charcoal and metal oxides are essential parts of the soil matrix and strongly influence the formation of biogeochemical interfaces in soil. We investigated the role of these parental materials for the development of functional microbial guilds using the example of alkane-degrading bacteria harbouring the alkane monooxygenase gene (alkB) in artificial mixtures composed of different minerals and charcoal, sterile manure and a microbial inoculum extracted from an agricultural soil. We followed changes in abundance and community structure of alkane-degrading microbial communities after 3 and 12 months of soil maturation and in response to a subsequent 2-week plant litter addition. During maturation we observed an overall increasing divergence in community composition. The impact of metal oxides on alkane-degrading community structure increased during soil maturation, whereas the charcoal impact decreased from 3 to 12 months. Among the clay minerals illite influenced the community structure of alkB-harbouring bacteria significantly, but not montmorillonite. The litter application induced strong community shifts in soils, maturated for 12 months, towards functional guilds typical for younger maturation stages pointing to a resilience of the alkane-degradation function potentially fostered by an extant 'seed bank'.

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“…For the remainder of the text, particle borne organic matter will be referred to as particulate matter. This material includes sediment and mineral-bound organic matter trapped in soil micro-aggregates released by soil erosion (Lützow et al, 2006;Mikutta et al, 2006;Remusat et al, 2012), adsorbed or occluded in clay minerals (Vogel et al, 2014) and non-mineral bound organic matter (e.g. litterfalls, roots and other vegetation debris) (Feller and Beare, 1997;Gregorich et al, 2006).…”

Section: Field Samplingmentioning

confidence: 99%

Do forests represent a long-term source of contaminated particulate matter in the Fukushima Prefecture?

Laceby

Huon

Onda

et al. 2016

Journal of Environmental Management

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a b s t r a c tThe Fukushima Daiichi Nuclear Power Plant (FDNPP) accident resulted in radiocesium fallout contaminating coastal catchments of the Fukushima Prefecture. As the decontamination effort progresses, the potential downstream migration of radiocesium contaminated particulate matter from forests, which cover over 65% of the most contaminated region, requires investigation. Carbon and nitrogen elemental concentrations and stable isotope ratios are thus used to model the relative contributions of forest, cultivated and subsoil sources to deposited particulate matter in three contaminated coastal catchments. Samples were taken from the main identified sources: cultivated (n ¼ 28), forest (n ¼ 46), and subsoils (n ¼ 25). Deposited particulate matter (n ¼ 82) was sampled during four fieldwork campaigns from November 2012 to November 2014. A distribution modelling approach quantified relative source contributions with multiple combinations of element parameters (carbon only, nitrogen only, and four parameters) for two particle size fractions (<63 mm and <2 mm). Although there was significant particle size enrichment for the particulate matter parameters, these differences only resulted in a 6% (SD 3%) mean difference in relative source contributions. Further, the three different modelling approaches only resulted in a 4% (SD 3%) difference between relative source contributions. For each particulate matter sample, six models (i.e. <63 mm and <2 mm from the three modelling approaches) were used to incorporate a broader definition of potential uncertainty into model results. Forest sources were modelled to contribute 17% (SD 10%) of particulate matter indicating they present a long term potential source of radiocesium contaminated material in fallout impacted catchments. Subsoils contributed 45% (SD 26%) of particulate matter and cultivated sources contributed 38% (SD 19%). The reservoir of radiocesium in forested landscapes in the Fukushima region represents a potential long-term source of particulate contaminated matter that will require diligent management for the foreseeable future.

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Submicron structures provide preferential spots for carbon and nitrogen sequestration in soils

Cited by 327 publications

References 44 publications

Effect of Mineral Nitrogen on Transfer of 13C-Carbon from Eucalyptus Harvest Residue Components to Soil Organic Matter Fractions

Effect of Mineral Nitrogen on Transfer of 13C-Carbon from Eucalyptus Harvest Residue Components to Soil Organic Matter Fractions

Clay minerals and metal oxides strongly influence the structure of alkane-degrading microbial communities during soil maturation

Do forests represent a long-term source of contaminated particulate matter in the Fukushima Prefecture?

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