A5025390901- Forest Management and Policy
- Forest ecology and management
- Plant Water Relations and Carbon Dynamics
- Forest Ecology and Biodiversity Studies
- Peatlands and Wetlands Ecology
- Soil Carbon and Nitrogen Dynamics
- Forest Biomass Utilization and Management
- Tree-ring climate responses
- Fire effects on ecosystems
- Bioenergy crop production and management
- Seedling growth and survival studies
- Hydrology and Watershed Management Studies
- Ecology and Vegetation Dynamics Studies
- Plant responses to elevated CO2
- Atmospheric and Environmental Gas Dynamics
- Cryospheric studies and observations
- Botany and Plant Ecology Studies
- Tree Root and Stability Studies
- Climate change and permafrost
- Remote Sensing and LiDAR Applications
- Environmental Conservation and Management
- Lichen and fungal ecology
- Conservation, Biodiversity, and Resource Management
- Environmental Impact and Sustainability
- Plant Stress Responses and Tolerance
Swedish University of Agricultural Sciences
2015-2024
Swedish Species Information Centre
2021
Umeå University
2017
• Half of the biological activity in forest soils is supported by recent tree photosynthate, but no study has traced detail this flux carbon from canopy to soil microorganisms field. Using 13CO2, we pulse-labelled over 1.5 h a 50-m2 patch 4-m-tall boreal Pinus sylvestris 200-m3 chamber. Tracer levels peaked after 24 soluble carbohydrates phloem at height 0.3 m, 2–4 d respiratory efflux, 4–7 ectomycorrhizal roots, and microbial cytoplasm. Carbon active pool needles, efflux had half-lives 22,...
Whereas there is evidence that mixed-species approaches to production forestry in general can provide positive outcomes relative monocultures, it less clear what extent multiple benefits be derived from specific alternatives. To such insights requires evaluations of an encompassing suite ecosystem services, biodiversity, and forest management considerations provided by mixtures monocultures within a region. Here, we conduct assessment Sweden contrasting even-aged Norway spruce (Picea...
In Sweden, where forests cover more than 60% of the land area, silviculture and use forest products by industry society play crucial roles in national carbon balance. A scientific challenge is to understand how different management wood strategies can best contribute climate change mitigation benefits. This study uses a set models analyze effects Sweden on dioxide emissions removals through 2105. If present Swedish strategy continued, long-term benefit will correspond 60 million tons avoided...
The rotation length is a key component of even-aged forest management systems. Using Fennoscandian forestry as case, we review the socio-ecological implications modifying lengths relative to current practice by evaluating effects on range ecosystem services and biodiversity conservation. shortening rotations provisioning are expected be mostly negative neutral (e.g. production wood, bilberries, reindeer forage), while those extending would more varied. Shortening may help limit damage some...
Planting new forests has received scientific and political attention as a measure to mitigate climate change. Large, have been planted in places like China Ethiopia and, over time, billion hectares could become available globally for planting forests. Sustainable management of forests, which are wood production, less despite these covering at least two globally. Better existing would improve forest growth help change by increasing the carbon (C) stock, storing C products, generating...
Abstract We analyse the short‐ and long‐term consequences for atmospheric greenhouse gas (GHG) concentrations of forest management strategies product uses in Sweden by comparing modelled resource use vs. increased conservation at different levels GHG savings from carbon sequestration substitution with bioenergy other products. Increased set‐asides resulted larger reductions only short term when effects were low. In all cases, was more beneficial. scenarios, annual dioxide (CO 2 ) rates...
Abstract The boreal forest is an important global carbon sink, but its response to drought remains uncertain. Here, we compiled biometric- and chamber-based flux data from 50 stands assess the impact of 2018 European summer on net ecosystem production (NEP) across a 68 km 2 managed landscape in northern Sweden. Our results reveal non-uniform reduction NEP (on average by 80 ± 16 g C m −2 yr − 1 or 57 13%) landscape, which was greatest young 20–50 years (95 39 ), gradually decreased towards...
Protecting water quality in forested regions is increasingly important as pressures from land-use, long-range transport of air pollutants, and climate change intensify. Maintaining forest industry without jeopardizing sustainability surface therefore requires new tools approaches. Here, we show how management can be optimized by incorporating landscape sensitivity hydrological connectivity into a framework that promotes the protection quality. We discuss this approach operationalized...
Abstract With the introduction of high‐resolution digital elevation models, it is possible to use terrain analysis extract small streams. In order map streams correctly, necessary remove errors and artificial sinks in models. This step known as preprocessing will allow water move across a landscape. However, new challenges are introduced with increasing resolution because effect anthropogenic artefacts such road embankments bridges increases increased resolution. These problematic during...
Continuous-cover forestry (CCF) has been recognized for the production of multiple ecosystem services, and is seen as an alternative to clear-cut (CF). Despite increasing interest, it still not well described how CCF would affect carbon balance resulting climate benefit from forest in relation CF. This study compares balances CF CCF, applied two land-use strategies a heterogeneous Norway spruce (Picea abies) stand. We use set models analyze long-term effects different management wood Sweden...
Abstract Nitrogen (N) deposition can change the carbon (C) sink of northern coniferous forests by changing balance between net primary production and soil respiration. We used a field experiment in an N poor Pinus sylvestris forest where five levels (0, 3, 6, 12, 50 kg ha −1 yr , n = 6) had been added annually for 12–13 years to investigate how litter C inputs respiration, divided into its autotrophic heterotrophic sources, respond different rates input, subsequent effect on storage. The...
Boreal forests are important global carbon (C) sinks and, therefore, considered as a key element in climate change mitigation policies. However, their actual C sink strength is uncertain and under debate, particularly for the actively managed boreal regions of Fennoscandia. In this study, we use an extensive set biometric- chamber-based flux data collected 50 forest stands (ranging from 5 to 211 years) over 3 years (2016-2018) with aim explore variations annual net ecosystem production (NEP;...
Spruce (Piceaabies L.) and pine (Pinussylvestris seedlings were planted at different positions relative to artificial tree shades. Two sites in northern Sweden known as difficult regenerate owing frosts during the growing season used. No deficiency of soil water was recorded all experienced similar temperature conditions night frosts. Exposed received on clear days 7 h more direct solar radiation than did shaded seedlings. After first severe frost August, discoloration needles a decrease...
The boreal biome exchanges large amounts of carbon (C) and greenhouse gases (GHGs) with the atmosphere thus significantly affects global climate. A managed landscape consists various sinks sources dioxide (CO2 ), methane (CH4 dissolved organic inorganic (DOC DIC) across forests, mires, lakes, streams. Due to spatial heterogeneity, uncertainties exist regarding net balance (NLCB). In this study, we compiled terrestrial aquatic fluxes CO2 , CH4 DOC, DIC, harvested C obtained from tall-tower...
Nutrient enrichment can alleviate productivity limitations and thus substantially increase carbon (C) uptake in northern coniferous forests. Yet, factors controlling stand-to-stand variation of forest ecosystem responses to nutrient remain unclear. We used five long-term (13 years) nutrient-enrichment experiments across Sweden, where nitrogen (N), phosphorus, potassium were applied annually young Norway spruce forests that varied their baseline properties. measured tree biomass soil C N...
<ja:p>There is a great need to increase the production in Swedish forests meet future demand from forest industry and bio-energy sector. One option supply nutrients young stands of Norway spruce. For practical application it important develop optimise fertilisation regimes terms production, economy leaching nutrients. The frequency one variable regime, this study aimed effects different frequencies on nitrogen. In 2001, five field experiments were established southern, central northern...