A5108606561- Soil Carbon and Nitrogen Dynamics
- Soil and Water Nutrient Dynamics
- Peatlands and Wetlands Ecology
- Clay minerals and soil interactions
- Forest ecology and management
- Groundwater and Isotope Geochemistry
- Heavy metals in environment
- Climate change and permafrost
- Forest Management and Policy
- Soil and Unsaturated Flow
- Forest Ecology and Biodiversity Studies
- Phosphorus and nutrient management
- Isotope Analysis in Ecology
- Soil Geostatistics and Mapping
- Fire effects on ecosystems
- Thermochemical Biomass Conversion Processes
- Geology and Paleoclimatology Research
- Biofuel production and bioconversion
- Indigenous Studies and Ecology
- Celiac Disease Research and Management
- Environmental and biological studies
- Coal and Its By-products
- Integrated Water Resources Management
- Engine and Fuel Emissions
- Geochemistry and Geologic Mapping
Norwegian University of Life Sciences
2011-2025
University of Bergen
2011
University of Oslo
2009
The Research Council of Norway
2000-2005
Karlstad University
2000
Biochar properties vary, and characterization of biochars is necessary for assessing their potential to sequester carbon improve soil functions. This study aimed at key surface agronomic relevance products from slow pyrolysis 250-800 °C, hydrothermal carbonization (HTC), flash carbonization. The further relating current indicators. results suggest that biochar chemical composition can be inferred volatile matter (VM) consistent corncob miscanthus feedstocks the three tested production...
Conservation farming (CF), involving basin tillage, residue retention and crop rotation, combined with biochar may help to mitigate negative impacts of conventional agriculture. In this study, the effects CF on amount quality soil organic matter (SOM) potential nitrogen (N) mineralization were investigated in a maize-soya-maize rotation an Acrisol Zambia. A large field was run under for 7 years subsequent three growing seasons (2015–2018), four management practices introduced study...
Relationships between soil C and N stocks formation, climate, vegetation were investigated in a gridded database connected to the National Forest Inventory Norway. For mineral orders, estimated be 11.1–19.3 kg C·m −2 0.41–0.78 N·m , respectively, declining following order: Gleysols > Podzols Brunisols Regosols. Organic peat-type soils stored, on average, 31.3 1.10 whereas shallow folisols 10.2 0.34 . Norway’s 120 000 km 2 of forest, total was 1.83 Gt C, with 95% CI 1.71–1.95 C. Podzolic...
Herbivory can have a major impact on the stocks and fluxes of elements in an ecosystem. As herbivores forage for limiting nutrients, preferential consumption certain plants over others shifts plant community composition. The well-defended that resist herbivory specialized traits often leading to lower quality litter is slow decompose. dominance species promotes greater quantity low-quality enter soil which then mineralization elements. When fertility low, increased nutrient cycling...
Fire has the immediate effect that roughly half of carbon and nitrogen is emitted lost from forest floors, remaining ashes fertilize ground pools dead organic matter stable black produced. Depending on intensity fire it will potentially have long lasting physical, chemical biological effects. as a disturbance agent to floor acted landscapes in Scandinavia since last glaciation natural phenomenon result human activities. Fires likely occurred all forests Norway even though sampling dating...
Soil organic matter (SOM) contributes to a large number of ecosystem services and represents an important global carbon store. In grassland ecosystems, domestic grazing by herbivores can alter storage in soils greatly either directly (defoliation, trampling defecation), or indirectly (change plant species composition, quality matter, nutrient cycling, soil temperature moisture). Due these changes potential interactions, may not only affect the amount SOM but also its formation pathways,...
Abstract Salt lick sites, where artificial salt blocks are placed at permanent locations, common in summer grazing areas for free‐ranging sheep Norwegian mountains. These often overlap with used by wild reindeer, and reindeer frequently observed these sites. The first cases of chronic wasting disease (CWD) were discovered among 2016, sites presumed to be hotspots the transmission CWD. In this study, we compare soil properties nearby control not affected review how salt‐induced changes may...
Abstract. Norwegian heathland soils, although scant and shallow, are major reservoirs of carbon (C). We aimed at assessing whether vegetation cover and, indirectly, its driving factor soil drainage good proxies for organic matter (SOM) composition dynamics in a typical area southern Norway consisting patchwork three different types vegetation, dominated by Calluna vulgaris (L.) Hull., Molinia caerulea Moench, or Sphagnum capillifolium (Ehrh.) Hedw. Such covers were clearly associated to...
Aquaporin-4 (AQP4) is a water channel found at high concentrations around blood vessels in the brain and organized into elaborate assemblies called square arrays. The natural functions of AQP4 arrays remain unknown, but under pathophysiological conditions, has been shown to influence edema, synapse function, cellular migration. was recently have six isoforms, where AQP4a (also known as M1), AQP4c M23), AQP4e are functional transport channels. Furthermore, by two-dimensional blue native...
Afforestation of marginal cultivated land is an internationally approved climate mitigation strategy, however, with uncertain implications for soil organic carbon (SOC) storage. We examined the effect forest planting by measuring SOC at two adjacent sites: one a Norway spruce planted in 1968 and actively grazed pasture. Both sites had similar land-use history before planting, they were as possible all other edaphic factors. There no significant differences stocks down to 30 cm mineral soil,...
Highlights• Long term (81 years) C sequestration is slightly higher in an even-aged compared to uneven-aged spruce stand.• The stand has at 81 years age a lower soil content than the Present fluxes indicate that difference long will increase favour if final felling postponed.
Abstract Litter fall and its decomposition rate play an important role in nutrient recycling, carbon budgeting sustaining soil productivity. production the were studied on commonly planted broad-leaved Eucalyptus (Eucalyptus globulus, camaldulensis, saligna) coniferous (Juniperus procera, Cupressus lusitanica, Pinus patula) plantation species compared with adjacent natural forest. The of litter was recorded by traps nylon net bag technique. under forest (that varied from 9.7 to 12.6 Mg ha−1...
Soil organic carbon (C), accumulated over millennia, comprise more than half of the C stored in boreal and temperate forest landscapes. We used Norwegian national inventory soil survey network (n = 719, no deep soils) to explore validity a deterministic model representation this pool (Yasso07). statistically compared simulated measured stocks related differences (measured – simulated) site factors (drainage, topography, climate, vegetation, C-to-N ratio, classification). Median were 5.0 kg...