Search Results - "Spokas, K"

Impacts of woodchip biochar additions on greenhouse gas production and sorption/degradation of two herbicides in a Minnesota soil by Spokas, K.A., Koskinen, W.C., Baker, J.M., Reicosky, D.C.

“…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…”
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Predicting the impact of biochar additions on soil hydraulic properties by Lim, T.J., Spokas, K.A., Feyereisen, G., Novak, J.M.

“…•Biochar’s impact on soil’s saturated conductivity was examined.•The impact of biochar additions can be estimated from biochar’s particle size.•A model was…”
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Influence of biochar amendments on the sorption–desorption of aminocyclopyrachlor, bentazone and pyraclostrobin pesticides to an agricultural soil by Cabrera, A., Cox, L., Spokas, K., Hermosín, M.C., Cornejo, J., Koskinen, W.C.

“…The many advantageous properties of biochar have led to the recent interest in the use of this carbonaceous material as a soil amendment. However, there are…”
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GHG impacts of biochar: Predictability for the same biochar by Thomazini, A., Spokas, K., Hall, K., Ippolito, J., Lentz, R., Novak, J.

“…•The same hardwood sawdust biochar was applied to 10 soils in laboratory incubations.•This biochar suppressed N2O emissions across the range of 10…”
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Efficacies of designer biochars in improving biomass and nutrient uptake of winter wheat grown in a hard setting subsoil layer by Sigua, G.C., Novak, J.M., Watts, D.W., Johnson, M.G., Spokas, K.

“…•Biochar was used to provide alternative recalcitrant carbon source in the soils.•Additions of different designer biochars may have variable effects on biomass…”
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Physical Disintegration of Biochar: An Overlooked Process by Spokas, K. A, Novak, J. M, Masiello, C. A, Johnson, M. G, Colosky, E. C, Ippolito, J. A, Trigo, C

“…Data collected from both artificially and field (naturally) weathered biochar suggest that a potentially significant pathway of biochar disappearance is…”
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Multi-year and multi-location soil quality and crop biomass yield responses to hardwood fast pyrolysis biochar by Laird, D.A., Novak, J.M., Collins, H.P., Ippolito, J.A., Karlen, D.L., Lentz, R.D., Sistani, K.R., Spokas, K., Van Pelt, R.S.

“…Biochar can remediate degraded soils and maintain or improve soil health, but specific and predictable effects on soil properties and crop productivity are…”
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Biochar reduces the efficiency of nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) mitigating N 2 O emissions by Fuertes-Mendizábal, T, Huérfano, X, Vega-Mas, I, Torralbo, F, Menéndez, S, Ippolito, J A, Kammann, C, Wrage-Mönnig, N, Cayuela, M L, Borchard, N, Spokas, K, Novak, J, González-Moro, M B, González-Murua, C, Estavillo, J M

“…Among strategies suggested to decrease agricultural soil N O losses, the use of nitrification inhibitors such as DMPP (3,4-dimethylpyrazole phosphate) has been…”
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A process-based inventory model for landfill CH4 emissions inclusive of seasonal soil microclimate and CH4 oxidation by Spokas, K., Bogner, J., Chanton, J.

“…We have developed and field‐validated an annual inventory model for California landfill CH4 emissions that incorporates both site‐specific soil properties and…”
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Plastics – still young, but having a mature impact by Spokas, K.

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Soil Health, Crop Productivity, Microbial Transport, and Mine Spoil Response to Biochars by Novak, J. M., Ippolito, J. A., Lentz, R. D., Spokas, K. A., Bolster, C. H., Sistani, K., Trippe, K. M., Phillips, C. L., Johnson, M. G.

“…Biochars vary widely in pH, surface area, nutrient concentration, porosity, and metal binding capacity due to the assortment of feedstock materials and thermal…”
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Leachate water quality of soils amended with different swine manure-based amendments by Ro, K.S., Novak, J.M., Johnson, M.G., Szogi, A.A., Libra, J.A., Spokas, K.A., Bae, S.

“…•Swine manure based pyrochar, compost, and hydrochar improved soil fertility.•Pyrochar and compost amended soils released high concentrations of P and K.•Only…”
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Effects of biochars and hydrochars produced from lignocellulosic and animal manure on fertility of a Mollisol and Entisol by Novak, J. M, Spokas, K. A, Cantrell, K. B, Ro, K. S, Watts, D. W, Glaz, B, Busscher, W. J, Hunt, P. G

“…Biochar and hydrochars (HC) are emerging soil fertility amendments; however, their ability to improve fertility levels in soils possessing vastly different…”
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Biochar reduces the efficiency of nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) mitigating N2O emissions by Fuertes-Mendizábal, T., Huérfano, X., Vega-Mas, I., Torralbo, F., Menéndez, S., Ippolito, J. A., Kammann, C., Wrage-Mönnig, N., Cayuela, M. L., Borchard, N., Spokas, K., Novak, J., González-Moro, M. B., González-Murua, C., Estavillo, J. M.

“…Among strategies suggested to decrease agricultural soil N 2 O losses, the use of nitrification inhibitors such as DMPP (3,4-dimethylpyrazole phosphate) has…”
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Methane mass balance at three landfill sites: What is the efficiency of capture by gas collection systems? by Spokas, K., Bogner, J., Chanton, J.P., Morcet, M., Aran, C., Graff, C., Golvan, Y. Moreau-Le, Hebe, I.

“…Many developed countries have targeted landfill methane recovery among greenhouse gas mitigation strategies, since methane is the second most important…”
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Crop residue decomposition in Minnesota biochar-amended plots by Weyers, S. L, Spokas, K. A

“…Impacts of biochar application at laboratory scales are routinely studied, but impacts of biochar application on decomposition of crop residues at field scales…”
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Collapse of Reacted Fracture Surface Decreases Permeability and Frictional Strength by Spokas, K., Fang, Y., Fitts, J. P., Peters, C. A., Elsworth, D.

“…Geochemical and geomechanical perturbations of the subsurface caused by the injection of fluids present risks of leakage and seismicity. This study…”
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Phenolic acid sorption to biochars from mixtures of feedstock materials by Hall, K. E, Calderon, M. J, Spokas, K. A, Cox, L, Koskinen, W. C, Novak, J, Cantrell, K

“…In an effort to customize biochars for soil amendments, multiple feedstocks have been combined in various ratios prior to pyrolysis. The resulting variation in…”
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Quantification and source apportionment of the methane emission flux from the city of Indianapolis by Cambaliza, M. O. L, Shepson, P. B, Bogner, J, Caulton, D. R, Stirm, B, Sweeney, C, Montzka, S. A, Gurney, K. R, Spokas, K, Salmon, O. E

“…We report the CH4 emission flux from the city of Indianapolis, IN, the site of the Indianapolis Flux Experiment (INFLUX) project for developing, assessing, and…”
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Plant Macro- and Micronutrient Dynamics in a Biochar-Amended Wetland Muck by Novak, J. M., Sigua, G. C., Spokas, K. A., Busscher, W. J., Cantrell, K. B., Watts, D. W., Glaz, B., Hunt, P. G.

“…Biochar is an organic carbon (OC) and plant nutrient-rich substance that may be an ideal amendment for bolstering soil organic matter and nutrient contents…”
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