Alice Budai
Forsker
Vedlegg
Curriculum VitaeBiografi
Forfattere
Alice Budai Lucia Calucci Daniel Rasse Line Tau Strand Annelene Pengerud Daniel Wiedemeier Samuel Abiven Claudia ForteSammendrag
Infrared and 13C solid state nuclear magnetic resonance spectroscopies and benzene polycarboxylic acids (BPCA) analysis were used to characterize the structural changes occurring during slow pyrolysis of corncob and Miscanthus at different temperatures from 235 °C to 800 °C. In the case of corncob, a char sample obtained from flash carbonization was also investigated. Spectroscopic techniques gave detailed information on the transformations of the different biomass components, whereas BPCA analysis allowed the amount of aromatic structures present in the different chars and the degree of aromatic condensation to be determined. The results showed that above 500 °C both corncob and Miscanthus give polyaromatic solid residues with similar degree of aromatic condensation but with differences in the structure. On the other hand, at lower temperatures, char composition was observed to depend on the different cellulose/hemicellulose/lignin ratios in the feedstocks. Flash carbonization was found to mainly affect the degree of aromatic condensation.
Sammendrag
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Forfattere
Elisa Lopez-Capel Kor Zwart Simon Shackley Romke Postma John Stenström Daniel Rasse Alice Budai Bruno GlaserSammendrag
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Forfattere
Priit Tammeorg Ana Catarina Bastos Simon Jeffery Frédéric Rees Jürgen Kern Ellen R. Graber Maurizio Ventura Mark Kibblewhite António Amaro Alice Budai Cláudia M.d.S. Cordovil Xavier Domene Ciro Gardi Gabriel Gascó Jan Horak Claudia Kammann Elena Kondrlova David Laird Susana Loureiro Martinho A.S. Martins Pietro Panzacchi Munoo Prasad Marija Prodana Aline Peregrina Puga Greet Ruysschaert Lidia Sas-Paszt Flávio C. Silva Wenceslau Geraldes Teixeira Giustino Tonon Gemini Delle Vedove Costanza Zavalloni Bruno Glaser Frank G. A. VerheijenSammendrag
Key priorities in biochar research for future guidance of sustainable policy development have been identified by expert assessment within the COST Action TD1107. The current level of scientific understanding (LOSU) regarding the consequences of biochar application to soil were explored. Five broad thematic areas of biochar research were addressed: soil biodiversity and ecotoxicology, soil organic matter and greenhouse gas (GHG) emissions, soil physical properties, nutrient cycles and crop production, and soil remediation. The highest future research priorities regarding biochar’s effects in soils were: functional redundancy within soil microbial communities, bioavailability of biochar’s contaminants to soil biota, soil organic matter stability, GHG emissions, soil formation, soil hydrology, nutrient cycling due to microbial priming as well as altered rhizosphere ecology, and soil pH buffering capacity. Methodological and other constraints to achieve the required LOSU are discussed and options for efficient progress of biochar research and sustainable application to soil are presented.
Forfattere
Ma Xingzhu Baoku Zhou Alice Budai Alhaji S. Jeng Xiaoyu Hao Dan Wei Yulan Zhang Daniel RasseSammendrag
Biochar is a carbon-rich solid product obtained by pyrolysis of biomass. Here, we investigated multiple biochars produced under slow pyrolysis (235–800 °C), flash carbonization, and hydrothermal carbonization (HTC), using Scanning Electron Microscope—Energy Dispersive X-ray Spectroscopy (SEM-EDX) in order to determine whether SEM-EDX can be used as a proxy to characterize biochars effectively. Morphological analysis showed that feedstock has an integrated structure compared to biochar; more pores were generated, and the size became smaller when the temperature increased. Maximum carbon content (max. C) and average carbon content (avg. C) obtained from SEM-EDX exhibited a positive relationship with pyrolysis temperature, with max. C correlating most closely with dry combustion total carbon content. The SEM-EDX O/C ratios displayed a consistent response with the highest treatment temperature (HTT). The study suggests that SEM-EDX produces highly consistent C, oxygen (O), and C/O ratios that deserve further investigation as an operational tool for characterization of biochar products.
Forfattere
Alice Budai Liang Wang Morten Grønli Line Tau Strand Michael Jerry Antal, Jr Samuel Abiven Alba Dieguez-Alonso Andrés Anca-Couce Daniel RasseSammendrag
Det er ikke registrert sammendrag
Forfattere
Kathrin Yvonne Weber Erlend Grenager Sørmo Gerard Cornelissen Alice Budai Daniel Rasse Harald Bier Troy RobichaudSammendrag
Biochar has emerged as a promising carbon dioxide removal (CDR) solution that combines long-term carbon storage with benefits for soil health, waste management, and industrial applications. This report provides a comprehensive assessment of the current state of biochar across feedstocks, production technologies, material properties, and end-use pathways, with a particular focus on its role in climate mitigation. Drawing on scientific literature and international case studies, the report evaluates the carbon sequestration potential, environmental performance, and technological maturity of biochar systems. It distinguishes between applications that deliver durable carbon removal and those that primarily contribute to emission reductions. The report further examines deployment barriers, including feedstock availability, regulatory frameworks, market development, and safety considerations, and reviews the status of biochar implementation across Mission Innovation countries. Based on these insights, it outlines key opportunities and recommendations to support the responsible scale-up of biochar as a climate solution.
Forfattere
Kathrin Yvonne Weber Erlend Grenager Sørmo Gerard Cornelissen Alice Budai Daniel Rasse Harald Bier Troy RobichaudSammendrag
Biochar has emerged as a promising carbon dioxide removal (CDR) solution that combines long-term carbon storage with benefits for soil health, waste management, and industrial applications. This report provides a comprehensive assessment of the current state of biochar across feedstocks, production technologies, material properties, and end-use pathways, with a particular focus on its role in climate mitigation. Drawing on scientific literature and international case studies, the report evaluates the carbon sequestration potential, environmental performance, and technological maturity of biochar systems. It distinguishes between applications that deliver durable carbon removal and those that primarily contribute to emission reductions. The report further examines deployment barriers, including feedstock availability, regulatory frameworks, market development, and safety considerations, and reviews the status of biochar implementation across Mission Innovation countries. Based on these insights, it outlines key opportunities and recommendations to support the responsible scale-up of biochar as a climate solution.
Forfattere
Thiago Inagaki Frederik Bøe Ievina Sturite Meike S. Bärmann Franziska Bucka Alice Budai Anders Aas Daniel RasseSammendrag
In high-latitude arable systems (63.9°N), short growing seasons and cold climates often constrain regenerative practices. This study investigates how cover crop (CC) diversity influences the synergy among root development, carbon (C) persistence, and nutrient (N and P) dynamics within a barley (Hordeum vulgare L.)-oat (Avena sativa) rotation. Over three years, we evaluated a gradient of CC intercropping complexity using a randomized complete block design. Treatments were: (1) Control (barley/oat without NPK), (2) Biochar-Fertilizer (barley/oat + NPK + 1.8 Mg ha-1 year-1 biochar), (3) Monocrop (barley/oat), (4) Ryegrass (barley + ryegrass), (5) Clover (barley + ryegrass + white/red clover), and (6) Chicory (barley + ryegrass + red clover + chicory + bird’s-foot trefoil). We quantified root biomass, soil organic matter (SOM) fractions, specifically Mineral-Associated Organic Matter (MAOM) and Particulate Organic Matter (POM), aggregate stability, nutrient stocks, and microbial abundance via qPCR. The CCs sown shortly after barley were successfully established, with an average biomass of 1525 kg/ha, without compromising cereal yields, thereby confirming their viability in Nordic climates. A central finding was that root development served as the primary driver of organo-mineral associations. Ryegrass- and Clover-based systems produced significantly higher root biomass, which correlated strongly (p < 0.01) with MAOM stocks and total P acquisition. These systems stored 12 Mg/ha more MAOM-C and 1.1 Mg/ha more MAOM-N than the control at 0-20 cm depth. The inclusion of diverse functional traits in the complex five-species mixture significantly improved soil physical structure, yielding higher aggregate stability and lower bulk density. While CCs accumulated approximately 7 kg P/ha, the diverse mix optimized nutrient availability, whereas simpler mixtures showed higher C:P ratios, suggesting potential microbial P immobilization. Microbial abundance was consistently higher in multi-species treatments, indicating a more active biological environment. Ongoing analysis integrates cereal physiological data, focusing on the photosynthetic efficiency of oats in response to cultivation? regimes. Our findings bridge the gap between root morphology, plant physiology, and long-term SOM persistence, providing a strategic framework for using functional crop traits to enhance soil resilience and nutrient efficiency in cold-climate regions.
Divisjon for miljø og naturressurser
AgroComposit
AgroComposit: Biochar-compost composites for supporting site-specific soil agro-ecosystem functions and climate change mitigation
Divisjon for miljø og naturressurser
AgroComposit
AgroComposit: Kompositter av biokull og kompost for å fremme jordas stedsspesifikke agroøkosystemfunksjoner og oppnå utslippskutt
Divisjon for miljø og naturressurser
AgriCascade
Cascading recycling of organic N-sources with next-generation biochar fertilizer for Norwegian agriculture
Divisjon for miljø og naturressurser
AgriCascade
AgriCascade: Gjenvinning av organisk nitrogen med forbedret biokull for gjødslings- og miljøgevinster i norsk landbruk