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[ID: 300] LifePlan
PI: Johan Westin
Poor understanding of biodiversity and its drivers due to 1) lack of relevant data 2) complex processes underlying the biodiversity dynamics and lack of tools for converting the data that we have into a true understanding of the processes behind them. The aim with LIFEPLAN is to overcome both these hurdles by bringing together the key expertise needed to generate and interpret Big Ecological Data for a global synthesis of biotic patterning across our planet uniting community ecology, methods for automated species recognition, and Bayesian statistics for immense data. The LIFEPLAN venture will generate a well-standardized global data for a substantial proportion of all species. Such standardization is achieved through semi-automated methods, producing comparable data independent of the exact expertise of the person or team conducting the sampling. Based on a recent revolution in sampling methodology, such a sampling design is now finally achievable.
[ID: 299] Studying the impact of N fertilization on the CO2 and CH4 exchanges of a boreal nutrient-poor mire
PI: Järvi Järveoja
The overarching goal of the project is to obtain an in-depth understanding of the peatland C cycle response to increased N input using an automated chamber system established on natural, moss and bare peat plots. More specifically, this set up will enable to study the effects of N fertilization on the individual carbon dioxide (CO2) and methane (CH4) exchanges and their various underlying component fluxes.
[ID: 298] The landscape-atmosphere-industry greenhouse gas budget of forest biomass production: Does sustainable forestry result in negative emissions?
PI: Matthias Peichl
The main goal of this project is to develop an integrated estimate of the landscape-atmosphere-industry greenhouse gas budget for a managed forest landscape (i.e. Krycklan) in boreal Sweden. This will be based on a landscape-scale GHG flux estimate using tall tower eddy-covariance and stream discharge measurements, >500 forest inventory plots, and a life cycle assessment of forest product emissions.
[ID: 297] Gleon DOM seasons
PI: Andrew Tanentzap
Dissolved organic matter (DOM) is central to the functioning of lakes, but its molecular composition remains a “blackbox” at large spatial and temporal scales. This project aims to understand how the origin and composition of DOM varies through time using ultra-high-resolution mass spectrometry and its association with biogeochemical data collected from high-frequency sensors (e.g. dissolved oxygen, chlorophyll a, fDOM/CDOM). We are interested in collecting surface water samples at a monthly interval for 1 year from the deepest point in your study lakes. We will process all samples using a standardized protocol and make data freely available for reuse on a cloud server. Sampling will run between Jan 2021 and Dec 2021 with standardized consumables.
[ID: 296] 2405 Peltovaara
PI: Fredrik Sjödin
Syftet med försöket är att studera föryngringsmetoder i svåra klimatlägen. Försöket utgörs av en huvudlokal i Pelttovaara och en referenslokal i Kissavaara. Klimatmätningar har utförts i anslutning till försökslokalerna. Försöket markbereddes med harv och högläggare. Planterades med tall (3 provenienser), gran (3 provenienser), contortatall, svartgran, vitgran och rysk lärk på sydväst- och nordostsluttning samt på krönet av 478 m höga Peltovaara, på gränsen till Ätnarova försökspark. Försöket anlades av Claes Fries, Inst f Skogsskötsel, SLU Umeå.
[ID: 295] 1477 Flakaliden snow depth measurements
PI: Ulla Nylander
Data from snow depth measurements at Flakaliden experimental site. Measurements at three different areas: in the forest stand (on going, start 1988), close to the climate station (on going, start 2008) and in a clear-cut area (1991-1998).
[ID: 294] Inside the black box: assessing the stability of the greenhouse gases storage in northern peatland.
PI: Audrey Campeau
Sweden is dotted with thousands of peatlands, acting as localized reservoirs of soil organic carbon and its decomposition end-products; carbon dioxide (CO2) and methane (CH4), two potent greenhouse gases (GHG). The stability of this vast GHG storage is critical to limit the current growth in atmospheric climate forcing. This project sets out to assess the stability of the GHG storage within two contrasting peatlands types, a northern poor fen (Degerö Stormyr - Sweden) and an ombrotrophic bog (Mer Bleue- Canada). This will be achieved through the use of new sensor technology, allowing to continuously measure CO2 concentrations at different depths across vertical peat profiles. The preliminary data reveals rapid sequential losses in CO2 concentrations, from the surface down to 1.5m depth at Degerö Stormyr. These losses reoccur every year at the same period, mostly in autumn, when the thermal stratification of the peat profile is removed by surface cooling. The estimated loss of CO2 from the catotelm during those events is sufficiently large to neutralize the peatland’s annual C sink. These results indicate that the hydrological and physical processes controlling the storage and transport of GHG in the catotelm have not been well understood. This raises concerns regarding the stability of the GHG storage in northern peatlands, which appear far more dynamic than currently assumed.
[ID: 292] 13780 Litter fall Svartberget
PI: Ulla Nylander
Data from 30 litter fall traps located in three stands close to Svartbergets field station. Litter fall from trap 1-18 (spruce dominated stand), trap 19-28 (pine dominated stand) and trap 29-30 (clearcut area) has in most cases been collected twice a year (spring and autumn). Litter fall from year 1984-1997 was sorted, dried and weighted by Elon Manfredsson. Dry weights digitised by Ulla Nylander. Files do not include measurements of needle lenght and calculated numbers of needles from the original forms.
[ID: 290] CO2 Evasion from Ephemeral Streams 2020
PI: Kevin Bishop
Previously collected data on the chemistry of ephemeral streams collected by student interns will be analyzed to estimate the CO2 evasion. This will be the MSc thesisi of Wiktor Trojanowski at Uppsala University Dept of Earth Sciences
[ID: 289] forest regeneration summer course
The purpose of the course is to give the students insight in the complexity in forest regenerations of the modern forestry in northern Europe. New findings and insights in seedling types, planting techniques, soil scarification methods will be discussed and evaluated linked to an understanding of plant ecophysiology and soil and site factors. The purpose with the course is also to provide knowledge in design of regeneration experiments and the techniques in measurements of seedling vitality and growth. The chain of managements, from seed to established trees will also be part of the discussion.
[ID: 287] Single tree ground laser scanning
PI: Ola Langvall
Laser scanning will be used to predict wood quality in a research project run by Kenneth Olofsson, SLU, Fjärranalys. Ten Scots pine trees of various sizes and quality are laser scanned from the ground and then harvested. Parameters for quality are assessed on the logs and the logs are sent for X-ray scanning at the sawmill in Fiskarheden, to get data for actual wood quality inside the tree.