A5019329393- Forest ecology and management
- Forest Management and Policy
- Forest Ecology and Biodiversity Studies
- Plant Water Relations and Carbon Dynamics
- Tree-ring climate responses
- Ecology and Vegetation Dynamics Studies
- Remote Sensing and LiDAR Applications
- Botany and Plant Ecology Studies
- Tree Root and Stability Studies
- Forest Biomass Utilization and Management
- Forest Insect Ecology and Management
- Peatlands and Wetlands Ecology
- Species Distribution and Climate Change
- Remote Sensing in Agriculture
- Lichen and fungal ecology
- Wildlife Ecology and Conservation
- Geographic Information Systems Studies
- Hydrology and Watershed Management Studies
- Social and Educational Sciences
- Conservation, Biodiversity, and Resource Management
- Geology and Paleoclimatology Research
- Plant and animal studies
- Mycorrhizal Fungi and Plant Interactions
- Reservoir Engineering and Simulation Methods
- Animal Ecology and Behavior Studies
Swedish University of Agricultural Sciences
2014-2025
Natural Sciences and Engineering Research Council
2023
Université du Québec à Montréal
2023
Umeå University
2008
<ja:p>National Forest Inventories (NFIs) are becoming increasingly important worldwide in order to provide information about the multiple functions of forests, e.g. their provision raw materials industry, biodiversity and capacity store carbon for mitigating climate change. In several countries history NFIs is very long. For these a specific challenge keep inventories up-to-date without sacrificing advantages associated with long time series. At turn 20th century European faced some major...
Background Despite empirical support for an increase in ecosystem productivity with species diversity synthetic systems, there is ample evidence that this relationship dependent on environmental characteristics, especially structurally more complex natural systems. Empirical forests urgently needed, as these ecosystems play important role carbon sequestration. Methodology/Principal Findings We tested whether tree wood production positively related to richness while controlling climatic...
Significance Tree diversity is fundamental for forest ecosystem stability and services. However, because of limited available data, estimates tree at large geographic domains still rely heavily on published lists species descriptions that are geographically uneven in coverage. These limitations have precluded efforts to generate a global perspective. Here, based ground-sourced database, we estimate the number biome, continental, scales. We estimated richness (≈73,300) ≈14% higher than...
The Nordic countries have long traditions in forest inventory and remote sensing (RS). In sample-based national inventories (NFIs), utilization of aerial photographs started during the 1960s, satellite images 1980s, laser scanning 2000s, photogrammetric point clouds 2010s. management (FMI), photos 1940s 2000s. However, so far, RS has mostly been used for map production research rather than estimation regional parameters or inference on their accuracy. recent years, technology developing very...
Signatory countries to the United Nations Framework Convention on Climate Change (UNFCCC) and its supplementary Kyoto Protocol (KP) are obliged report greenhouse gas emissions removals. Changes in carbon stock of living biomass should be reported using either default or change methods Intergovernmental Panel (IPCC) under Land Use, Land-Use Forestry sector. Traditionally, volume estimates used as a forestry measures. may assessed by first estimating stem wood then converting this whole tree...
Above-ground biomass (AGB) is considered an essential climate variable that underpins our knowledge and information about the role of forests in mitigating change. The availability satellite-based AGB change (ΔAGB) products has increased recent years. Here we assessed past decade net ΔAGB derived from four global multi-date maps: ESA-CCI maps, WRI-Flux model, JPL time series, SMOS-LVOD series. Our assessments explore use different reference data sources with re-measurements within decade....
Abstract Question: Detecting species presence in vegetation and making visual assessment of abundances involve a certain amount skill, therefore subjectivity. We evaluated the magnitude error data, its consequences for evaluating temporal trends. Location: Swedish forest vegetation. Methods: Vegetation data were collected independently by two observers 342 permanent 100‐m 2 plots mature boreal forests. Each plot was visited one observer from group 36 quality observers. The cover class 29...
Abstract Background The increasing availability of remotely sensed data has recently challenged the traditional way performing forest inventories, and induced an interest in model-based inference. Like design-based inference, inference allows for regional estimates totals means, but addition wall-to-wall mapping characteristics. Recently Light Detection Ranging (LiDAR)-based maps attributes have been developed many countries well received by users due to their accurate spatial representation...
Abstract Understanding what controls global leaf type variation in trees is crucial for comprehending their role terrestrial ecosystems, including carbon, water and nutrient dynamics. Yet our understanding of the factors influencing forest types remains incomplete, leaving us uncertain about proportions needle-leaved, broadleaved, evergreen deciduous trees. To address these gaps, we conducted a global, ground-sourced assessment leaf-type by integrating inventory data with comprehensive form...
Abstract Forest biomass is an essential resource in relation to the green transition and its assessment key for sustainable management of forest resources. Here, we present a dataset Europe based on best available inventory satellite data, with higher level harmonisation spatial resolution than other existing data. This database provides statistics maps area, stock their share wood supply year 2020, gross net volume increment 2010–2020, 38 European countries. The most countries are at...
A new system is presented for predicting tree mortality, in order to improve Swedish long-term forest planning. three-step approach was used, which consists of (I) estimating the probability mortality on a sample plot; (II) quantifying terms proportion basal area; and (III) distributing among individual trees. The predicts 5 yr periods. Data from permanent plots National Forest Inventory were used. Independent variables used steps I II specific site, stand plot characteristics. In step III...
Retaining trees for conservation at final harvest is becoming increasingly common within forestry globally, especially connected to clearcutting. The main action leave single living and dead trees, tree patches buffer strips, benefit biodiversity enhance ecosystem functioning. We present the first national analysis of effects on structural components from applying retention approach. In Sweden has been practiced large-scale about 25 years, prescribed by law a requirement in certification...
Background European forests have a long record of management. However, the diversity current forest management across nations, tree species and owners, is hardly understood. Often when trying to simulate future resources under alternative futures, simply yield table style harvesting applied. It now crucially important come grips with actual management, that demand for wood increasing EU Land Use, Use Change Forestry Regulation has been adopted requiring 'continuation practices' as baseline...
Abstract Key message Using satellite-based maps, Ceccherini et al. (Nature 583:72-77, 2020) report abruptly increasing harvested area estimates in several EU countries beginning 2015. more than 120,000 National Forest Inventory observations to analyze the map, we show that it is not but map’s ability detect areas increases after 2015 Finland and Sweden.
Following an almost century-long increase, forest growth in Sweden has abruptly decreased during the last decade. Lower than expected biomass trajectories threaten national targets for carbon sequestration and bioeconomy. While climate-related drought is most likely cause, critical question whether this recent decline transient, or beginning of a new normal where conventional management actions may risk further losses resilience to water stress. We argue that improved mechanistic insights...
Human activities have exerted a powerful influence on the biogeochemical cycles of nitrogen (N) and carbon (C) drive changes that can be challenge to predict given multiple environmental stressors. This study focused understanding how land management climate change together influenced terrestrial N storage watershed inorganic export across boreal sub-arctic landscapes in northern Sweden. Using long-term discharge nutrient concentration data been collected continuously for over three decades,...