A5043514909- Plant Water Relations and Carbon Dynamics
- Forest ecology and management
- Forest Management and Policy
- Tree-ring climate responses
- Fire effects on ecosystems
- Remote Sensing in Agriculture
- Atmospheric and Environmental Gas Dynamics
- Peatlands and Wetlands Ecology
- Remote Sensing and LiDAR Applications
- Cryospheric studies and observations
- Tree Root and Stability Studies
- Forest Ecology and Biodiversity Studies
- ICT Impact and Policies
- Species Distribution and Climate Change
- Ecology and Vegetation Dynamics Studies
- Plant responses to elevated CO2
- Forest Insect Ecology and Management
- Global Energy Security and Policy
- Simulation Techniques and Applications
- Climate change and permafrost
- Geology and Paleoclimatology Research
- Integrated Energy Systems Optimization
- Hydrology and Watershed Management Studies
- Soil Geostatistics and Mapping
- Reservoir Engineering and Simulation Methods
Lund University
2015-2025
KTH Royal Institute of Technology
2002-2011
Skåne University Hospital
2007
Swedish University of Agricultural Sciences
2001
Abstract Terrestrial ecosystems sequester 2.1 Pg of atmospheric carbon annually. A large amount the terrestrial sink is realized by forests. However, considerable uncertainties remain regarding fate this over both short and long timescales. Relevant data to address these are being collected at many sites around world, but syntheses still sparse. To facilitate future synthesis activities, we have assembled a comprehensive global database for forest ecosystems, which includes budget variables...
Abstract. Plant transpiration links physiological responses of vegetation to water supply and demand with hydrological, energy, carbon budgets at the land–atmosphere interface. However, despite being main land evaporative flux global scale, its response environmental drivers are currently not well constrained by observations. Here we introduce first compilation whole-plant data from sap flow measurements (SAPFLUXNET, https://sapfluxnet.creaf.cat/, last access: 8 June 2021). We harmonized...
Abstract Disturbance of ecosystems is a major factor in regional carbon budgets, and it believed to be partly responsible for the large inter‐annual variability terrestrial part balance. Forest fires have so far been considered as most important disturbance but also other forms such insect outbreaks or wind‐throw might contribute significantly largely unexplained variability, at least specific regions. The effect has not yet estimated because lack data on how fluxes are affected. Gudrun...
Abstract This paper develops a statistical model for daily gross primary production (GPP) in boreal and temperate coniferous forests. The applies the light use efficiency (LUE) approach, which estimates conversion of absorbed photosynthetically active radiation (APAR) into GPP as product potential LUE modifying factors. latter were derived from total APAR mean temperature, vapour pressure deficit (VPD) soil water content (SWC). Modelling data came five European eddy covariance measurement...
Abstract. Temperature measurements in trunks and branches a mature ca. 100 years-old mixed pine spruce forest central Sweden were used to estimate the heat storage tree biomass. The estimated flux sample trees data on biomass distributions scale up stand level fluxes. rate of change sensible latent air layer below was from temperature humidity profile soil plates measurements. fluxes measured with an eddy covariance system tower. analysis made for two-month period summer 1995. largest...
Boreal forests are key to global carbon (C) sequestration and storage. However, the potential impacts of climate change on these could be profound. Nearly 70 % European boreal intensively managed, but our understanding combined effects forest management forest's integral role as a C sink is still limited. In this study, we aim fill gap with simulations process-based dynamic vegetation model LPJ-GUESS. We evaluated four options under two different scenarios (RCP 4.5 RCP 8.5), at southern...
Abstract. Global forests are the main component of land carbon sink, which acts as a partial buffer to CO2 emissions into atmosphere. Dynamic vegetation models offer an approach projecting development forest sink capacity in future climate. Forest management capabilities important include dynamic account for effects age and species structure wood harvest on stocks storage potential. This article describes implementation module containing even-age clear-cut uneven-age continuous-cover...
Data on net CO 2 exchange from eight forests in Denmark, Sweden, Finland and Iceland were used to analyse which factors controlling photosynthesis respiration. The consisted of different species ranging climatic condition temperate subarctic. Only well mixed conditions analysed ( u * > 0.3 m s -1 ). parameters a light response function showed strong seasonal variations with similar behaviour for all stands except beech forest where the development vigorous ground vegetation spring affected...
Abstract. For evaluating the forests’ performance in a future with changing climate for different management alternatives, dynamic vegetation models are important tools. One of functions such that has big influence on results is tree mortality. Bark beetles pattern mortality forest, especially needle leaved forest temperate and boreal zones. The European spruce bark beetle (SBB, Ips typographus) most recent years replaced wind as disturbance agent forests. Historically, SBB damage typically...
Abstract. Monthly averages of ecosystem respiration (ER), gross primary production (GPP) and net exchange (NEE) over Scandinavian forest sites were estimated using regression models driven by air temperature (AT), absorbed photosynthetically active radiation (APAR) vegetation indices. The constructed evaluated satellite data from Terra/MODIS measured collected at seven flux tower in northern Europe. Data used for model construction was excluded the evaluation. Relationships between ground...
Six to nine years of net ecosystem carbon exchange (NEE) data from forests in Hyytiala Finland, Soro Denmark and Norunda Sweden were used evaluate the interannual variation balance. For half-monthly periods, average NEE was calculated for night-time data. daytime parameters extracted relationship photosynthetic active radiation (PAR). The standard deviation highest where it typically around 25% mean, while ca. 15% Soro. Temperature main controller respiration capacity autumn, winter spring...