Cited by 666Soil Carbon and Nitrogen DynamicsPesticide and Herbicide Environmental StudiesThermochemical Biomass Conversion Processes

Impacts of woodchip biochar additions on greenhouse gas production and sorption/degradation of two herbicides in a Minnesota soil

Spokas, K.A., Koskinen, W.C., Baker, J.M., Reicosky, D.C.·2009·Chemosphere

Abstract

A potential abatement to increasing levels of carbon dioxide (CO(2)) in the atmosphere is the use of pyrolysis to convert vegetative biomass into a more stable form of carbon (biochar) that could then be applied to the soil. However, the impacts of pyrolysis biochar on the soil system need to be assessed before initiating large scale biochar applications to agricultural fields. We compared CO(2) respiration, nitrous oxide (N(2)O) production, methane (CH(4)) oxidation and herbicide retention and transformation through laboratory incubations at field capacity in a Minnesota soil (Waukegan silt loam) with and without added biochar. CO(2) originating from the biochar needs to be subtracted from the soil-biochar combination in order to elucidate the impact of biochar on soil respiration. After this correction, biochar amendments reduced CO(2) production for all amendment levels tested (2, 5, 10, 20, 40 and 60% w/w; corresponding to 24-720 tha(-1) field application rates). In addition, biochar additions suppressed N(2)O production at all levels. However, these reductions were only significant at biochar amendment levels >20% w/w. Biochar additions also significantly suppressed ambient CH(4) oxidation at all levels compared to unamended soil. The addition of biochar (5% w/w) to soil increased the sorption of atrazine and acetochlor compared to non-amended soils, resulting in decreased dissipation rates of these herbicides. The recalcitrance of the biochar suggests that it could be a viable carbon sequestration strategy, and might provide substantial net greenhouse gas benefits if the reductions in N(2)O production are lasting.

Integrity signals

Registry

Crossref · 10.1016/j.chemosphere.2009.06.053

Cites

40 of 40 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Biochar addition decreases total N2O emission from soils treated with N sources such as manure, urea, and compost.

    “Biochar addition has often been shown to decrease total N2O emission from soils treated with N sources such as manure, urea, and compost (Bruun et al. 2011;Singh et al. 2010;Spokas et al. 2009).”

    From Biochar and its importance on nutrient dynamics in soil and plant (2020) · cites this paper as Spokas et al. 2009

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Spokas, K. A., Koskinen, W. C., Baker, J. M., & Reicosky, D. C.
Affiliations
  • Agricultural Research Service (US)
  • North Central Soil Conservation Research Laboratory (US)
Corresponding author
Spokas, K.A.
Venue
Chemosphere
Publisher
Elsevier BV
Published
2009-10
Volume
77
Issue
4
Pages
574-581
ISSN
0045-6535 (ISSN-L)
OpenAlex
W2125006526
Cited by
666
References
40
Citations by year
2026: 6 · 2025: 27 · 2024: 22 · 2023: 32 · 2022: 39 · 2021: 46 · 2020: 47 · 2019: 43 · 2018: 42 · 2017: 40 · 2016: 55 · 2015: 49 · 2014: 47 · 2013: 54 · 2012: 40
FWCI
65.19
Type
journal article
Language
en
Open access
closed
Locations
  • Chemosphere (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
  • Physical Sciences › Environmental Science › Pollution › Pesticide and Herbicide Environmental Studies
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
Keywords
biochar, greenhouse gas emissions, soil respiration, nitrous oxide production, methane oxidation, herbicide adsorption, atrazine, acetochlor, herbicide dissipation, carbon sequestration, soil amendment
MeSH terms
Adsorption, Atrazine, Carbon Dioxide, Charcoal, Environmental Monitoring, Gases, Herbicides, Methane, Minnesota, Nitrous Oxide, Oxidation-Reduction, Soil, Soil Pollutants, Toluidines, Greenhouse Effect

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review