Pyrogenic carbon quantity and quality unchanged after 55 years of organic matter depletion in a Chernozem

Vasilyeva, Nadezda; Abiven, Samuel; Milanovskiy, Evgeny; Hilf, Michael D.; Rizhkov, Oleg V.; Schmidt, Michael W. I.

doi:10.1016/j.soilbio.2011.05.015

Cited by 35 publications

(22 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, published evidence suggests that priming effect is not a significant factor for explaining long term soil organic carbon dynamics (Cardinael et al, 2015). Additionnally, Vasilyeva et al (2011) compared the PyOC contents of bare fallow soils (after 55 years of bare fallow) to the PyOC contents of soils from an adjacent native grass steppe. They found that the absence of vegetation did not interact with the persistence of PyOC in soil as the observed changes in PyOC contents were similar for fallowed and vegetated soils.…”

Section: Discussionmentioning

confidence: 99%

“…It consists in sampling soils where PyOC entered the soil at different times in the past (Nguyen et al, 2009;Vasilyeva et al, 2011;Alexis et al, 2012), as a substitute for archived samples of the same site at different times. The advantage of this approach is that the MRT can be calculated over long periods, provided one can find samples from comparable environmental conditions, receiving a similar amount of PyOC at several year or decade intervals.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pyrogenic Carbon Lacks Long-Term Persistence in Temperate Arable Soils

et al. 2017

Self Cite

View full text Add to dashboard Cite

Pyrogenic organic carbon (PyOC) derived from incomplete burning of biomass is considered the most persistent fraction of soil organic carbon (SOC), being expected to remain in soil for centuries. However, PyOC persistence has seldom been evaluated under field conditions. Based on a unique set of soils from five European long-term bare fallows, i.e. vegetation-free field experiments, we provide the first direct comparison between PyOC and SOC persistence in temperate arable soils. We found that soil PyOC contents decreased more rapidly than expected from current concepts, the mean residence time of native PyOC being just 1.6 times longer than that of SOC. At the oldest experimental site, 55% of the initial PyOC remained after 80 years of bare fallow. Our results suggest that while the potential for long-term C storage exists, the persistence of PyOC in soil may currently be overestimated

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pyrogenic Carbon Lacks Long-Term Persistence in Temperate Arable Soils

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…; Vasilyeva et al . ). Over time, however, microbial action results in an increase in carboxyl groups and declining aromaticity (Hockaday et al .…”

Section: Mechanisms For Charcoal Degradationmentioning

confidence: 97%

REVIEW: Charcoal function and management in boreal ecosystems

Hart

Luckai

2013

Journal of Applied Ecology

View full text Add to dashboard Cite

Summary1. Charcoal plays an important role in soil function and carbon storage in fire-prone ecosystems. Charcoal is present in most boreal forest soils as a result of naturally recurring wildfires, which convert 0Á7-2% of biomass to charcoal. In boreal forests, charcoal represents 8-10% of soil carbon and 1 pg of carbon globally. 2. Charcoal is resistant to decay, representing a form of super-passive carbon, with half-lives one to two orders of magnitude greater than those of other soil organic matter. High concentrations of negative surface charges increase nutrient retention, impacting boreal soil function, productivity and species composition. 3. Due to a lack of soil mixing processes, charcoal in boreal soils is vulnerable to recombustion in recurring fires, inhibiting the accumulation of charcoal over time, unlike in other fire-prone ecosystems. 4. Boreal charcoal stocks are highly variable. Increased fire intensity results in greater charcoal formation, with stand-replacing crown fires resulting in much larger charcoal stocks than non-stand-replacing ground fires. Current estimates of carbon storage based on Scandinavian studies of non-stand-replacing fires may underestimate charcoal stocks by factors of 2-3. 5. Synthesis and applications. Charcoal contributes to boreal soil function, ecosystem productivity, nutrient retention and carbon cycling. In the absence of fire, charcoal loses many active properties, contributing to declining productivity with increasing time since fire. Incorporation of charcoal into ecosystem management using prescribed burns may contribute to sustainable management of boreal forests and maintaining global carbon cycles.

show abstract

“…Studies of the ambient distribution of PyOM in soil fractions, in other words, in soils collected from sites without intentional addition of PyOM also find significant portion of PyOM in these fractions (Glaser et al, 2000;Brodowski et al, 2006;Laird et al, 2008;Liang et al, 2008;Vasilyeva et al, 2011). Studies of the ambient distribution of PyOM in soil fractions, in other words, in soils collected from sites without intentional addition of PyOM also find significant portion of PyOM in these fractions (Glaser et al, 2000;Brodowski et al, 2006;Laird et al, 2008;Liang et al, 2008;Vasilyeva et al, 2011).…”

Section: Quality Of Pyom Changes Within One Year In Soilmentioning

confidence: 97%

Transformation and stabilization of pyrogenic organic matter in a temperate forest field experiment

Singh

Abiven

Maestrini

et al. 2014

Global Change Biology

Self Cite

View full text Add to dashboard Cite

Pyrogenic organic matter (PyOM) decomposes on centennial timescale in soils, but the processes regulating its decay are poorly understood. We conducted one of the first studies of PyOM and wood decomposition in a temperate forest using isotopically labeled organic substrate, and quantified microbial incorporation and physico-chemical transformations of PyOM in situ. Stable-isotope (¹³C and ¹⁵N) enriched PyOM and its precursor wood were added to the soil at 2 cm depth at ambient (N0) and increased (N+) levels of nitrogen fertilization. The carbon (C) and nitrogen (N) of added PyOM or wood were tracked through soil to 15 cm depth, in physically separated soil density fractions and in benzene polycarboxylic acids (BPCA) molecular markers. After 10 months in situ, more PyOM-derived C (>99% of initial 13C-PyOM) and N (90% of initial ¹⁵N-PyOM) was recovered than wood derived C (48% of 13C-wood) and N(89% under N0 and 48% under N+). PyOM-C and wood-C migrated at the rate of 126 mm yr ⁻¹ with 3-4% of PyOMC and 4-8% of wood-C recovered below the application depth. Most PyOM C was recovered in the free light fraction(fLF) (74%), with 20% in aggregate-occluded and 6% in mineral associated fractions – fractions that typically have much slower turnover times. In contrast, wood C was recovered mainly in occluded (33%) or dense fraction (27%).PyOM addition induced loss of native C from soil (priming effect), particularly in fLF (13%). The total BPCA-C content did not change but after 10 months the degree of aromatic condensation of PyOM decreased, as determined by relative contribution of benzene hexa-carboxylic acid (B6CA) to the total BPCA C. Soil microbial biomass assimilated 6-10% of C from the wood, while PyOM contributions was negligible (0.14–0.18%). The addition of N had no effect on the dynamics of PyOM while limited effect on wood.

show abstract

Pyrogenic carbon quantity and quality unchanged after 55 years of organic matter depletion in a Chernozem

Cited by 35 publications

References 22 publications

Pyrogenic Carbon Lacks Long-Term Persistence in Temperate Arable Soils

Pyrogenic Carbon Lacks Long-Term Persistence in Temperate Arable Soils

REVIEW: Charcoal function and management in boreal ecosystems

Transformation and stabilization of pyrogenic organic matter in a temperate forest field experiment

Contact Info

Product

Resources

About