Filtyp
We propose a framework for calibration, positioningand tracking in a scene viewed by multiple cameras, througha flat refractive surface and one or several flat reflective walls.Refractions are explicitly modeled by Snell’s law and reflectionsare handled using virtual points. A novel bundle adjustmentframework is introduced for solving the nonlinear equationsof refractions and the linear equations
ContextPrimary forests, with little to no direct human impact, can serve as baselines to assess land-use effects. However, most have been converted for other land-uses and the locations and characteristics of the remaining forests are poorly characterized.ObjectivesThis study presents a map of Swedish primary forests, explores their persistence in a managed landscape, and assesses their suitabilit
Old-growth forests uniquely support biodiversity while serving as some of the planet's most important carbon stocks. The influence of tree and stand age on carbon flux dynamics remains debated—an urgent question as climate-driven disturbances may reshape forest age structures and in situ carbon storage. To clarify these relationships in Fagus sylvatica , systems, we examined a unique dataset of 3,
Effective environmental policies for the tropics depend on accurate, representative scientific data. However, there is strong evidence from particular disciplines and regions that existing research is patchily distributed. Here, we show that poor representation of sampling and citation in some biomes and across key environmental gradients from all disciplines for the entire tropics may lead to fla
Increasing drought frequency and intensity affect biophysical functions of natural ecosystems. In tropical semi-arid savannas, while immediate drought effects are well-studied, the drought legacy effects on vegetation composition and associated ecosystem functions remain unclear. We used data of vegetation composition, net ecosystem CO 2 exchange, surface albedo and evapotranspiration (ET) in 2017
The stable isotope ratios of carbon (δ13C(CH4)) and hydrogen (δ2H(CH4)) in methane (CH4) from atmospheric air samples provide a tracer that can help distinguish the relative contribution of emission sources. These can be continuously measured at atmospheric monitoring stations by optical isotope ratio spectrometer (OIRS) instruments, providing data that is complementary to isotope ratio mass spect
Relaxed eddy accumulation (REA) measurements for 14CO2 enable the estimation of fossil fuel (ff) CO2 fluxes in urban areas. This work is based on 252 REA ffCO2 flux measurements conducted on tall towers in the cities of Zurich, Paris, and Munich. The ffCO2 fluxes were compared to net eddy covariance CO2 fluxes to quantify the role of non-fossil (nf) CO2 fluxes. While the measurements in Zurich and
Small acts and big effects Why should individuals act in a way that promotes Agenda 2030 goals and can we make them do so? Teachers: Mattias Gunnemyr (Practical philosophy) and Annika Wallin (Cognitive science) plus invited guests. The course gives a deeper understanding of collective harm cases and the inefficacy problem. Collective harm cases are situations where there will be bad consequences i
While many studies have examined carbon dynamics of boreal ecosystems following wildfire, research on forest-atmosphere carbon fluxes during widespread smoke events from adjacent active wildfires is limited. We examined eddy covariance carbon exchange adjacent to the May 2011 Utikuma Complex wildfire in central Alberta, Canada. Over a one-week period while the wildfire was burning <10 km from the
LUMES Programme Agenda 2021-2023 Page 1 of 2 Lund University Centre for Sustainability Studies PROGRAMME AGENDA 2021-2023 Date 2022-04-08 Updated: 2022-04-11 LUMES1 Programme Agenda 2022-2024 Autumn 2022 – semester 1 • Earth Systems Science (MESB02), August 24 – September 28 (24 teaching days). Breanäs field trip: 7 – 9 September. • Social Sciences and Sustainability (MESS16), September 29 - Octob
https://www.lumes.lu.se/sites/lumes.lu.se/files/2022-04/LUMES-programme-agenda-2022-2024-version-220411.pdf - 2026-05-17
LUMES Programme Agenda 2021-2023 Lund University Centre for Sustainability Studies Postal address LUCSUS, Box 170 Visiting address Biskopsgatan 5, Lund Telephone +46 46 222 04 70 Website https://www.lumes.lu.se/ PROGRAMME AGENDA 2024-2026 Page 1 of 2 2 Page 2 of 2 Date 2024-04-24 LUMES[footnoteRef:1] Programme Agenda 2024-2026 [1: Lund University International Masters programme in Environmental St
https://www.lumes.lu.se/sites/lumes.lu.se/files/2024-04/LUMES-programme-agenda-2024-2026-version-240424.docx - 2026-05-17
The future role of boreal forests in the global carbon cycle is uncertain given the rapid climate change in high latitudes. At the landscape scale, heterogeneity in stand age and land cover, contributions from terrestrial and aquatic fluxes, and harvest export may create complex carbon cycle-climate interactions. However, the integrated response of the net landscape carbon balance (NLCB) to inter-
Deposition of phosphorus (P) is important for the nutrient supply to forests and open land but also contributes to the eutrophication of surface waters. Deposition to open land can be measured as bulk deposition while deposition to forests cannot be measured directly, due to internal circulation of P within forest canopies. This study aimed to quantify the total deposition of P to open land and fo
This study investigates possible structural changes of an intrinsically disordered protein (IDP) when it adsorbs to a solid surface. Experiments on IDPs primarily result in ensemble averages due to their high dynamics. Therefore, molecular dynamics (MD) simulations are crucial for obtaining more detailed information on the atomistic and molecular levels. An evaluation of seven different force f
An increased frequency of droughts due to anthropogenic climate change can lead to considerable stress for soil microorganisms and their functioning within northern peatlands. A better understanding of the diversity and relative abundance of methane producing and oxidizing taxa, and their functional genes, can help predict the functional potential of peatlands and how the microorganisms respond to
Research in global change ecology relies heavily on global climatic grids derived from estimates of air temperature in open areas at around 2 m above the ground. These climatic grids do not reflect conditions below vegetation canopies and near the ground surface, where critical ecosystem functions occur and most terrestrial species reside. Here, we provide global maps of soil temperature and biocl
High latitude mires are key ecosystems in the context of climate change since they store large amounts of carbon while constituting an important natural source of methane (CH4). However, while a growing number of studies have investigated methane fluxes (FCH4) at the plot- (~1 m2) and ecosystem-scale (~0.1–0.5 km2) across the boreal biome, variations of FCH4 magnitudes and drivers at the mesoscale
Kina har en fast valutakurs gentemot andra valutor. Från 1980-talet och framåt har man haft en ekonomisk politik med en stark export- och investeringsledd tillväxt. Kina har under senare år haft stora bytesbalansöverskott mot framför allt USA men också mot EU och Japan. Bytesbalansöverskottet har gjort att Kinas valutareserv har ökat kraftigt. USA har kritiserat Kina för att hålla valutan undervä
