A5025445762- Peatlands and Wetlands Ecology
- Coastal wetland ecosystem dynamics
- Botany and Plant Ecology Studies
- Soil and Water Nutrient Dynamics
- Methane Hydrates and Related Phenomena
- Atmospheric and Environmental Gas Dynamics
- Aquatic Ecosystems and Phytoplankton Dynamics
- Geology and Paleoclimatology Research
- Mine drainage and remediation techniques
- Aquatic Invertebrate Ecology and Behavior
- Environmental Conservation and Management
- Constructed Wetlands for Wastewater Treatment
- Lichen and fungal ecology
- Freshwater macroinvertebrate diversity and ecology
- Fire effects on ecosystems
- Microbial Community Ecology and Physiology
- Bryophyte Studies and Records
- Housing Market and Economics
- Insurance and Financial Risk Management
- Water-Energy-Food Nexus Studies
- Musicology and Musical Analysis
- Phosphorus and nutrient management
- Water Quality Monitoring Technologies
- Biological Control of Invasive Species
- Energy, Environment, Agriculture Analysis
B-Ware (Netherlands)
2011-2025
Radboud Institute for Molecular Life Sciences
2023-2024
Radboud University Medical Center
2023-2024
Radboud University Nijmegen
2014-2024
Vrije Universiteit Amsterdam
2023
Art Research Centre of the Slovak Academy of Sciences
2023
Utrecht University
2023
Kitware (United States)
2016
ABSTRACT The importance of anaerobic oxidation methane (AOM) as a sink in freshwater systems is largely unexplored, particularly peat ecosystems. Nitrite-dependent (n-damo) was recently discovered and reported to be catalyzed by the bacterium “ Candidatus Methylomirabilis oxyfera,” which affiliated with NC10 phylum. So far, several Ca . oxyfera” enrichment cultures have been obtained using limited number sediments or wastewater treatment sludge inoculum. In this study, stable isotope...
Peatlands are among the world's most carbon-dense ecosystems and hotspots of carbon storage. Although peatland drainage causes strong emissions, land subsidence, fires biodiversity loss, drainage-based agriculture forestry on is still expanding a global scale. To maintain restore their vital sequestration storage function to reach goals Paris Agreement, rewetting restoration all drained degraded peatlands urgently required. However, socio-economic conditions hydrological constraints hitherto...
Peat decomposition driven by soil metabolic processes is responsible for approximately 2 % of global annual anthropogenic greenhouse gas emissions. A peat soil's redox potential (Eh) and pH reflect its biogeochemical state are therefore linked to the rate production. In this study, we aim establish if continuous Eh measurements an effective tool monitor thus quantify effects wetting efforts. We applied in-situ (>150 sensors 2020–2022) as a proxy processes, which validated under field...
Abstract Sphagnum ‐bog ecosystems have a limited capability to retain carbon and nutrients when subjected increased nitrogen (N) deposition. Although it has been proposed that phosphorus (P) can dilute negative effects of by increasing biomass production mosses, is still unclear whether P‐addition alleviate physiological N‐stress in plants. A 3‐year fertilisation experiment was conducted lawns pristine magellanicum bog Patagonia, where competing vascular plants were practically absent....
In agricultural landscapes of North-Western Europe, the majority water bodies do not meet targets set by European Water Framework Directive due to a lack submerged macrophytes and associated biodiversity. These eutrophic waters can also be substantial source methane (CH4) carbon dioxide (CO2) atmosphere. Here we present two-year field experiment on island Goeree-Overflakkee (southwest Netherlands), conducted in six drainage ditches varying salinity, where monitored four permanent plots per...
Sphagnum mosses are vital to bog ecosystems and are, therefore, target species for peatland restoration paludiculture. Their establishment relies on consistent wet conditions adequate nutrient supply. However, extreme climatic events, such as prolonged droughts, threaten establishment. To better understand the effects of water table fluctuations different species, we conducted a field experiment with stable fluctuating conditions. After 1 year, measured cover, lawn height (as proxy growth),...
Peatlands cause ~2% of anthropogenic greenhouse gas (GHG) emissions due to drainage. In study, we aimed assess (1) if laboratory aerobic and anaerobic heterotrophic respiration rates peat layers accurately represent observed CO2 CH4 (chamber eddy-covariance respectively) emissions, (2) the contribution processes surface GHG emission fluxes. Furthermore, hypothesized that redox potential is more suitable than water table depth capture metabolic soil associated rates, are crucial when...
Abstract Azolla spp., a water fern often used for phytoremediation, is strong phosphorus (P) accumulator due to its high growth rate and N 2 fixing symbionts (diazotrophs). It known that plant stimulated by P, but the nature of interactive response both along P gradient, related changes in growth-limiting factors, are unclear. We determined growth, sequestration rates filiculoides N-free at different concentrations. The appeared be biphasic highest levels ≥10 µmol l −1 . Diazotrophic...
Abstract Agricultural drainage ditches are subjected to high anthropogenic nitrogen input, leading eutrophication and greenhouse gas emissions. Nitrate-dependent anaerobic methane oxidation (N-DAMO) could be a promising remediation strategy remove (CH4) nitrate (NO3−) simultaneously. Therefore, we aimed evaluate the potential of N-DAMO excess NO3− decrease CH4 release from agricultural ditches. Microcosm experiments were conducted using sediment surface water collected three different sites:...
Abstract Drained peatlands emit large amounts of greenhouse gases and cause downstream nutrient pollution. Rewetting aids in restoring carbon storage sustaining unique biodiversity. However, rewetting for nature restoration is socio-economically not always feasible. Cultivation Sphagnum biomass after allows agricultural production. In the short term, paludiculture productive without fertilization but it remains unclear whether sustains its functionality longer-term. We studied dynamics,...
Internal phosphorus (P) mobilisation from aquatic sediments is an important process adding to eutrophication problems in wetlands. Salinisation, a fast growing global problem, thought affect P behaviour. Although several studies have addressed the effects of salinisation, interactions between salinity changes and nutrient cycling freshwater systems are not fully understood. To tackle eutrophication, clear understanding interacting sediment characteristics surface water quality vital. In...
Centuries of drainage have stimulated peat decomposition. To counteract the resulting increase in greenhouse gas emission and land subsidence Dutch agricultural peatlands, passive active subsurface infiltration (SSI) systems been developed for peatland rewetting. Here, we studied effects SSI on groundwater levels, porewater composition redox potential four drained peatlands Netherlands to determine how soil processes are affected, especially carbon nutrient dynamics. For three years, levels...
In coastal zones globally, salinization is rapidly taking place due to the combined effects of sea level rise, land subsidence, altered hydrology, and climate change. Although increased salinity levels are known have a great impact on both biogeochemical hydrological processes in aquatic sediments, only few studies included types their potential interactions. present paper, we used controlled 3-year experimental mesocosm approach test induced interactions discuss mechanisms explaining...
The agricultural use of drained peatlands leads to huge emissions greenhouse gases and nutrients. A land-use alternative that allows rewetting peatland while maintaining production is the cultivation Sphagnum biomass as a renewable substitute for fossil peat in horticultural growing media (Sphagnum farming). We studied productivity nutrient dynamics during two years farming sites NW Germany, which were established on bog grassland by sod removal, rewetting, introduction fragments 2011 2016,...
Abstract The presence of submerged macrophytes is a desired environmental target for coastal freshwater ecosystems. Maintaining rich community these species can be challenging as salinisation by sea‐level rise poses an increasing threat to ecosystem integrity. We tested the effect on growth and germination experimentally using field sediment. In 56‐day experiment, macrophyte was exposed salinity treatments representing seasonal water management scenarios (a decreasing from 1,500 300 mg...
Abstract. Peatlands play an important role in the global carbon (C) cycle due to their large C storage potential. Their sequestration rates, however, highly vary depending on climatic and geohydrological conditions. Transitional mires are often characterised by floating peat with infiltration of buffered groundwater or surface water. Sphagnum mosses grow top, producing recalcitrant organic matter fuelling stocks. As species strongly differ tolerance higher pH these mires, composition can be...
Abstract Peatland degradation through drainage and peat extraction have detrimental environmental societal consequences. Rewetting is an option to restore lost ecosystem functions, such as carbon storage, biodiversity nutrient sequestration. Peat mosses ( Sphagnum ) are the most important peat‐forming species in bogs. Most occur nutrient‐poor habitats; however, high growth rates been reported artificial nutrient‐rich conditions with optimal water supply. Here, we demonstrate differences...
Dredging, the removal of sediment from water courses, is generally conducted to maintain their navigability and improve quality. Recent studies indicate that dredging can significantly reduce aquatic greenhouse gas (GHG) emissions. These studies, however, do not consider potential emission dredged material (sludge) in depot. In addition, it unknown if how GHG emissions sludge depots be reduced. Here we present spatiotemporal variations carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O)...