Soil microbial responses over 2 years following biochar addition to a north temperate forest

Noyce, Genevieve L.; Basiliko, Nathan; Fulthorpe, Roberta R.; Sackett, Tara E.; Thomas, Sean C.

doi:10.1007/s00374-015-1010-7

Cited by 67 publications

(32 citation statements)

References 47 publications

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“…A shift in favor of certain type of microorganisms was also reported (Hale et al 2013). There were increases in the ratio of Gram-positive bacteria/ fungi and lower ratios of Gram-negative/Gram-positive bacteria (Noyce et al 2015). Another study investigated the soil microbial responses to biochar addition in a temperate forest Fig.…”

Section: Changes In Microbial Abundance and Shifts In Microbial Commumentioning

confidence: 98%

The properties and functions of biochars in forest ecosystems

Luo

Zhang

et al. 2016

J Soils Sediments

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Purpose The production of large quantities of biochar from natural fires has been a part of human history for millennia, causing CO 2 emissions to the atmosphere and exerting longterm effects on soil processes. Despite its potential importance and recent work reflecting the wide interest in biochar, a general review of our deep understanding of biochar functions within forest soils is currently lacking. Gaps in research knowledge in this field are identified in this paper. Materials and methods This paper summarizes recent research to provide a better understanding of the concentrations, distribution, and characteristics of biochar produced from forest wildfire and its influences on soil processes. Perspectives and recommendations for future research on biochar in postfire forest soils are also discussed. Results and discussion The concentration, distribution, and characteristics of biochar produced from forest wildfire largely depend on forest landscapes, regional climates, and mostly its feedstock and fire history, like, its duration and severity. The influences of biochar on soil processes, particularly carbon and nitrogen transformations and cycling, like, nitrification and nitrous oxide emissions reduction (Clough and Condron, J Environ Qual 39:1218-1223, are also determined mainly by the fire temperature and raw materials. Mechanisms can be attributed to the adsorption of organic compounds and nutrients or changed microenvironment, termed as charsphere, by biochar. We also identify the microbial mechanisms involved in the biochar-containing soils.

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Section: Changes In Microbial Abundance and Shifts In Microbial Commumentioning

confidence: 98%

The properties and functions of biochars in forest ecosystems

Luo

Zhang

et al. 2016

J Soils Sediments

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“…Biochar was also discovered to be an ideal ecological niche by not only allowing microorganisms to establish themselves on the pores and surfaces, but also may retain readily metabolized nutrient [48] and substrate [49], therefore, stimulating the total size of soil microbial population. A number of researchers reported an increment in the abundance of these two conserved genes after the application of biochar to the soil [50,51], however, there is no research available reporting the effect of a biochar addition on microbial gene abundance in the acidic soil of the humid tropic.…”

Section: Effect Of Biochar On Soil Microbial Propertiesmentioning

confidence: 99%

Linking Soil Microbial Properties with Plant Performance in Acidic Tropical Soil Amended with Biochar

et al. 2018

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Soil microbial properties are frequently used as indicators of soil fertility. However, the linkage of these properties with crop biomass is poorly documented especially in biochar amended soil with high carbon:nitrogen (C:N). A short-term field trial was conducted to observe the growth response of maize to biochar treatment in a highly weathered Ultisol of humid tropics and to observe the possible linkage of the measured microbial properties with maize biomass. Soil microbial biomass (carbon (C), nitrogen (N), phosphorus (P)), enzyme activity (β-glucosidase, urease, phosphodiesterase) and gene abundance (bacterial 16S rRNA, fungal ITS) were analyzed. For comparison, total soil C, N, and P were also analyzed. The data revealed no significant linkage of soil C, N, and P with maize biomass. A significant association of enzyme activity and gene abundance with maize biomass was not recorded. Strong positive correlation between maize above ground biomass with microbial biomass N was found (r = 0.9186, p < 0.01). Significant negative correlation was recorded between microbial biomass C:N with maize biomass (r = −0.8297, p < 0.05). These statistically significant linkages observed between microbial biomass and maize biomass suggests that microbial biomass can reflect the soil nutrient status, and possibly plant nutrient uptake. Estimation of microbial biomass can be used as a fertility indicator in soil amended with high C:N organic matter in the humid tropics.

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“…Soil type, vegetation, and other ecosystems largely govern the microbial responses to biochar (Noyce et al, 2015). The microbial response to biochar addition to soil is a function of the existing soil microbial community and might also be linked to previous land-use patterns (Gomez et al, 2014).…”

Section: Microbial Response To Biochar In Soilmentioning

confidence: 99%

Polycyclic aromatic hydrocarbons and volatile organic compounds in biochar and biochar‐amended soil: a review

et al. 2016

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Residual pollutants including polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), and carbon (aceous) nanoparticles are inevitably generated during the pyrolysis of waste biomass and remain on the solid coproduct called biochar. Such pollutants could have adverse effects on the plant growth as well as microbial community in soil. Although biochar has been proposed as a ‘carbon negative strategy’ to mitigate the greenhouse gas emissions, the impacts of its application with respect to long‐term persistence and bioavailability of hazardous components are not clear. Moreover, the co‐occurrence of low molecular weight VOCs with PAHs in biochar may exert further phytotoxic effects. This review describes the basic need to unravel key mechanisms driving the storage vs. emission of these organics and the dynamics between the sorbent (biochar) and soil microbes. Moreover, there is an urgent need for standardized methods for quantitative analysis of PAHs and VOCs in biochar under environmentally relevant conditions. This review is also extended to cover current research gaps including the influence of biochar application on the short‐ and long‐term fate of PAHs and VOCs and the proper control tactics for biochar quality and associated risk.

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Soil microbial responses over 2 years following biochar addition to a north temperate forest

Cited by 67 publications

References 47 publications

The properties and functions of biochars in forest ecosystems

The properties and functions of biochars in forest ecosystems

Linking Soil Microbial Properties with Plant Performance in Acidic Tropical Soil Amended with Biochar

Polycyclic aromatic hydrocarbons and volatile organic compounds in biochar and biochar‐amended soil: a review

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