A5052294079- Soil Carbon and Nitrogen Dynamics
- Invertebrate Taxonomy and Ecology
- Toxic Organic Pollutants Impact
- Peatlands and Wetlands Ecology
- Per- and polyfluoroalkyl substances research
- Study of Mite Species
- Crop Yield and Soil Fertility
- Air Quality and Health Impacts
- Atmospheric chemistry and aerosols
- Clinical Nutrition and Gastroenterology
- Pasture and Agricultural Systems
- CO2 Sequestration and Geologic Interactions
- Healthcare Systems and Challenges
- Land Use and Ecosystem Services
- Planetary Science and Exploration
- Methane Hydrates and Related Phenomena
- Plant Ecology and Soil Science
- Clay minerals and soil interactions
- Geology and Paleoclimatology Research
- Silicon Effects in Agriculture
- Plant responses to elevated CO2
University of Antwerp
2019-2025
A number of negative emission technologies (NETs) have been proposed to actively remove CO2 from the atmosphere, with enhanced silicate weathering (ESW) as a relatively new NET considerable climate change mitigation potential. Models calibrated ESW rates in lab experiments estimate global potential for inorganic carbon sequestration by at about 0.5-5 Gt year-1 , suggesting could be an important component future NETs mix. In real soils, however, may differ strongly conditions. Research on...
<title>Abstract</title> Enhanced weathering captures CO2 via two pathways: Carbonate formation and leaching of products. Here, we look beyond those pathways, identifying other sinks sources. While processes such as clay or organic matter decomposition reduce the efficiency enhanced weathering, stabilisation could contribute to C storage. In a 15 month mesocosm experiment including different types silicates (basalt steel slag) inorganic sequestration indeed remained negligible (below 0.1 t...
Abstract. Enhanced Weathering using basalt rock dust is a scalable carbon dioxide removal (CDR) technique, but quantifying weathering and CDR rates poses critical challenge. Here, we investigated inorganic by treating mesocosms planted with corn (0, 10, 30, 50, 75, 100, 150 200 t ha⁻¹) monitoring them for 101 days. Surprisingly, observed no significant CDR, as leaching of dissolved did not increase, soil carbonate content even declined over time. To gain insights into the processes, analyzed...
Virtually all scenarios that limit global warming to 1.5°C require large scale carbon dioxide removal (CDR). Enhanced Weathering (EW) is considered an attractive CDR technology because of the permanence sequestered inorganic and its scalability. Yet, a great challenge in EW research quantification weathering C sequestration rates. In addition, soil (macro)biota such as earthworms were postulated stimulate silicate dissolution both physically chemically. However, quantitative data on how...
Enhanced weathering (EW) of silicate rocks is a negative emission technology that captures CO 2 from the atmosphere. Olivine (Mg SiO 4 ) fast mineral can be used for EW and abundant in dunite rock. In addition to sequestration, also has co-benefits an agricultural context. Adding minerals soils significantly improve crop health growth as releases elements such silicon (Si) stimulate increase stress resistance, co-benefit becoming increasingly important global warming proceeds. However,...
Besides rapid and deep greenhouse gas emission reductions, atmospheric Carbon Dioxide Removal strategies (CDRs) will be necessary to mitigate anthropogenic climate change. A promising CDR is Enhanced rock Weathering (EW), deployed on croplands. So far, most research focused lab-based weathering sequestration rates, but these might differ substantially in field settings, where biota may have a strong effect EW processes (e.g., via bio-weathering). Additionally, studies are mostly short-term,...
There are two main processes acting as carbon sinks for CO2 on land: Silicate weathering and photosynthesis. The former creates bicarbonates which can be stored in soils or leached out the oceans, latter leads to formation of plant tissue soil organic matter. Soils thus at foundation both these land could therefore play a crucial role tackling climate change. Either via enhanced silicate (acceleration naturally extremely slow process by finely grinding rock applying it soils) improved...
Enhanced Weathering (EW) is a promising negative emissions technology for atmospheric CO2 removal, particularly in agricultural setups. Spreading silicate rock powder, such as basalt, over extensive lands not only sequesters but also provides essential nutrients like K, Mg, and Fe to crops. However, the efficiency of carbon sequestration this system varies strongly, posing challenge widespread adoption, among stakeholders farmers. Climate change intensifies weather extremes, exacerbating...
Abstract. Terrestrial enhanced silicate weathering is a CO2 removal technology involving the application of ground materials to agricultural soils. Next sequestration, it can improve soil fertility and crop growth, but also contain toxic trace elements. In mesocosm experiment, we investigated effect basalt, concrete fines steel slags on biomass, nutrients, heavy metal concentration Zea Mays, using dose-response approach. Plant biomass increased with not slags. Generally, plant Ca, Mg, corn...
Virtually all scenarios that limit global warming to 1.5°C require large scale carbon dioxide removal (CDR). Enhanced weathering (EW) is considered an attractive CDR technology because of the permanence sequestered inorganic and its scalability. Yet, a great challenge in EW research quantification C sequestration rates. In addition, soil (macro)biota such as earthworms were postulated stimulate silicate dissolution, but quantitative data on how influence (in)organic systems are lacking. To...
With rising population growth, there is a need for increased food production. temperatures and more frequent droughts due to climate change, it becomes challenging keep up with this demand food. Therefore, change in land use management needed which enhanced silicate weathering (ESW) can play an important role. Weathering of rocks has been regulating the atmospheric CO2 concentrations over decades, but rise CO2, natural too slow. Grinding into fine powder spread example agricultural fields...