Filetype
Anthropogenic nitrogen deposition is widely considered to increase CO2 sequestration by land plants on a global scale. Here, we demonstrate that bedrock nitrogen weathering contributes significantly more to nitrogen-carbon interactions than anthropogenic nitrogen deposition. This working hypothesis is based on the introduction of empirical results into a global biogeochemical simulation model over
Land cover and land management changes (LCLMCs) have a substantial impact on the global carbon budget and, consequently, on global climate via the biogeochemical (BGC) effects. The commonly considered BGC effects refer to the direct influence of LCLMCs on local carbon stocks (local BGC effects). However, LCLMCs also influence climate by altering the local surface energy balance due to changes in l
Advances in Earth observation capabilities mean that there is now a multitude of spatially resolved data sets available that can support the quantification of water and carbon pools and fluxes at the land surface. However, such quantification ideally requires efficient synergistic exploitation of those data, which in turn requires carbon and water land-surface models with the capability to simulta
The European spruce bark beetle (Ips typographus) is an insect species that causes significant damage to Norway spruce (Picea abies) forests across Europe. Infestation by bark beetles can profoundly impact forest ecosystems, affecting their structure and composition and affecting the carbon cycle and biodiversity, including a decrease in net primary productivity (NPP), a key indicator of forest he
The study aimed to create a pipeline from Monte Carlo simulated projections of a Gate PET system to reconstructed images. The PET system was modelled after the GE Discovery MI (DMI) PET/CT, and the simulated projections were reconstructed with the stand-alone reconstruction software CASToR. Attenuation correction, normalisation calibration, random estimation, and scatter estimation for the simulat
Semi-arid ecosystems, common across the Australian continent, strongly influence the inter-annual variability and trend in the global terrestrial net carbon sink. Here we explore the future Australian terrestrial carbon cycle using the CMIP6 ensemble, and the dynamic global vegetation model LPJ-GUESS. Uncertainty in Australia's carbon storage in vegetation ranged between 6 and 49 PgC at the end of
Coronavirus disease 2019 (COVID-19) is a contagious disease that turned into a pandemic and led to seven million deaths around the globe. A herculean effort was made by world scientific community to develop various therapies including vaccines against COVID-19 in record time. Use of nanomedicine was one among the different treatment strategies tried against COVID-19. Nanocarriers were effectively
INTRODUCTION: Development of asthma and allergies in childhood/adolescence commonly follows a sequential progression termed the 'atopic march'. Recent reports indicate, however, that these diseases are composed of multiple distinct phenotypes, with possibly differential trajectories. We aim to synthesise the current literature in the field of machine learning-based trajectory studies of asthma/all
Uncertainty in our calculations of a system reveals the limits of our knowledge. This limitation makes model representations of the Earth system challenging and our predictions less reliable. However, despite appearing chaotic and non-linear, a system always follows a deterministic trajectory, which can often be expressed probabilistically. Building on this concept, this thesis applies data assimi
Med denna guide vill vi ge forskningsbaserade råd om hur du kan minska dinklimatpåverkan genom att förändra dina levnadsvanor, och leva i linje medParisavtalets 1,5-gradersmål. Vi vill både visa svenskars genomsnittliga klimat-avtryck och den stora skillnaden mellan individers koldioxidavtryck. Det innebär attdet behövs olika vägval för de som vill förändra sina levnadsvanor. Guiden betonardessutoSyftet med denna guide är att ge forskningsbaserade råd om de mest effektiva sätten att minska sitt koldioxidavtryck för en genomsnittlig person i Sverige. Samtidigt visar den att individuella livsstilsförändringar måste kombineras med och stödjas av förändringar i det omgivande samhället. Dessutom ger guiden en allmän fingervisning om storleken på ditt koldioxidavtryck och om vilka delar av din v
European forests have served as a critical carbon sink, absorbing approximately 10% of annual anthropogenic CO₂ emissions in the EU, as a result of both increased forest area and growing stock since 1950. However, this sink has declined by one-third over the past decade, based on the EU National Greenhouse Gas Inventory. This decline has been proposed to be due to multiple interacting factors: cli
Inom akademi, industri och offentlig sektor – i stort sett överallt i samhället – finns en övervikt av män i ledande positioner. Det sker visserligen en förändring – men en långsam sådan . Kan man knuffa på denna långsamma förändring? Svaret är förstås ja. Det finns många olika slags knuffar som antingen har iscensatts eller kan komma att iscensättas. Ledarutvecklingsprogrammet AKKA, som 60 kvinno
Africa is largely influenced by fires, which play an important ecological role influencing the distribution and structure of grassland, savanna and forest biomes. Here vegetation strongly interacts with climate and other environmental factors, such as herbivory and humans. Fire-enabled Dynamic Global Vegetation Models (DGVMs) display high uncertainty in predicting the distribution of current tropi
The 2018 drought was one of the worst European droughts of the twenty-first century in terms of its severity, extent and duration. The effects of the drought could be seen in a reduction in harvest yields in parts of Europe, as well as an unprecedented browning of vegetation in summer. Here, we quantify the effect of the drought on net ecosystem exchange (NEE) using five independent regional atmos
The terrestrial carbon cycle is an important component of the global carbon budget due to its large gross exchangefluxes with the atmosphere and their sensitivity to climate change. Terrestrial biosphere models showlarge uncertainties in simulating carbon fluxes, which impact global carbon budget assessments. The land surfacecarbon cycle is tightly controlled by soil moisture through plant physiol
Justice is an underlying principle and an important lens in understanding sustainable development goals (SDG). There is a need for analysis and clarification on the underlying principles of justice embedded in the SDGs. Goals such as no poverty (goal 1), zero hunger (goal 2), health and well-being (goal 3), gender equality (goal 5), affordable energy (goal 7), reduced inequalities (goal 10) as wel
Atmospheric inversions have been used for the past two decades to derive large-scale constraints on the sources and sinks of CO2 into the atmosphere. The development of dense in situ surface observation networks, such as ICOS in Europe, enables in theory inversions at a resolution close to the country scale in Europe. This has led to the development of many regional inversion systems capable of as
