5 results on '"Lind, Torgny"'
Search Results
2. Balancing landscape-level forest management between recreation and wood production.
- Author
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Eggers, Jeannette, Lindhagen, Anders, Lind, Torgny, Lämås, Tomas, and Öhman, Karin
- Subjects
FOREST management ,OUTDOOR recreation ,DEGREES of freedom ,FORESTS & forestry ,DECISION support systems - Abstract
Although many forested landscapes are used for both wood production and outdoor recreation, intensive forest management can negatively impact the recreational value of forests, including in Sweden, a country with rich forest resources and a strong forest industry. In Sweden, urbanization has increased the importance of, and demand for, urban and peri-urban recreational green areas such as forests. It is the responsibility of the local government – i.e., the municipalities – to provide a good living environment for its inhabitants, including recreational areas. However, most of the forest areas in Sweden are owned by private individuals and companies, which have a large degree of freedom in their forest management decisions. Municipalities can make formal agreements with forest owners to protect forests with high recreational values, but this requires financial resources, which are often scarce. Thus, tools are needed to identify the forest areas that should be prioritized for the use of forest management strategies that maintain or increase the recreational value of forests. In this study, we elaborate an approach that balances economic and recreational forest values within a forest decision support system (DSS) and test the approach for a case study area in southern Sweden. The recreation model included in the forest DSS links locational aspects, such as population density and proximity to water, with forest structure aspects, which are simulated over time under different management strategies. Our results suggest that the model could be useful for more efficient planning of the recreational potential of forests at the landscape level. The results from the case study indicate that substantial increases in the recreational value of a forest landscape can be achieved with relatively small overall economic losses, for example, by extending rotation periods in forests close to densely populated areas. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
3. Environmental effects of brushwood harvesting for bioenergy.
- Author
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Ebenhard, Torbjörn, Forsberg, Maria, Lind, Torgny, Nilsson, Daniel, Andersson, Rune, Emanuelsson, Urban, Eriksson, Lennart, Hultåker, Oscar, Iwarsson Wide, Maria, and Ståhl, Göran
- Subjects
FOREST biomass ,LOGGING ,RENEWABLE energy sources ,BIODIVERSITY ,CULTURAL property - Abstract
Sweden aims to increase the proportion of renewable energy sources, ultimately to be able to phase out fossil fuels. To achieve this, new energy sources need to be explored. In this multi-disciplinary article, we examine the technical, economical, ecological and legal possibilities to commercially and sustainably harvest brushwood for bioenergy, while simultaneously gaining positive environmental effects, both for biological diversity, the cultural heritage, and the climate. The Swedish open landscape is becoming covered with secondary brushwood regrowth through natural succession, except where it is kept open. Brushwood is spreading along roads, railway lines, edge zones, in power line corridors, abandoned semi-natural grasslands, nature reserves, and in marginal land in urban areas. Such brushwood consists of saplings, bushes and young trees of a range of deciduous plant species, e.g. birch, aspen, alder and goat willow, sometimes mixed with conifers, often forming dense thickets. Such secondary brushwood regrowth could be systematically utilised as a new source of renewable bioenergy. Commercial brushwood harvesting in Sweden may contribute 26 PJ of energy annually, which may be a small but significant contribution, considering the favourable energy ratio ( E r = 28), indicating that large emission reductions can be achieved, if fossil fuels are replaced. Growing brushwood does not require fertilizers or pesticides, soil tillage or crop management, and it does not compete with any other potential land use. Many brushwood habitats are already being managed to clear brushwood, for other purposes, minimizing the added harvesting cost. Apart from providing bioenergy, it has also been suggested that brushwood harvesting would benefit biological diversity. A large number of nationally redlisted species are dependent on the active management of open habitats, including semi-natural grasslands, and man-made habitats such as road verges and power line corridors. Our literature review shows that brushwood harvesting could benefit both biological diversity and the cultural heritage, and contribute to the management of the open cultural landscape. There are however certain limitations. Brushwood harvesting would favour a certain set of species, including many redlisted, but it may also threaten another set of species, especially species associated with early successional stages of forest regeneration, as well as forest edge species, depending on how and where it is applied. Harvesting may be affected by legislation imposing limitations regarding habitats of particular importance for biodiversity. The environmental and legal constraints would probably reduce the profitability of brushwood harvesting in certain areas, as well as the annual production of bioenergy. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
4. Restricted imputation for improving spatial consistency in landscape level data for forest scenario analysis.
- Author
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Barth, Andreas, Lind, Torgny, and Ståhl, Göran
- Subjects
FORESTS & forestry ,FOREST management ,FOREST biodiversity ,RECREATIONAL use of forest reserves ,LANDSCAPE protection ,FIELD plotters ,REMOTE sensing ,CASE studies - Abstract
Abstract: Today, forest scenario analyses often require spatially comprehensive data. This is due to increasing needs to provide broad-scale descriptions of the consequences of different forest management regimes, encompassing issues with a clear spatial dimension such as biodiversity and recreation. Thus, the composition and spatial configuration of the forest landscape have to be accurately assessed. Today, such data are commonly provided by combining field plot data with remote sensing using imputation schemes such as the k Nearest Neighbour (kNN). Often, such algorithms are executed plot by plot, or stand by stand, and there is no final check that overall landscape composition and configuration are correctly captured. As a consequence, the result from scenario analyses may be severely erroneous; for example, kNN data often exhibits a tendency towards mean values, which may result in misleading predicted outputs of goods and services over time. The objective of this paper was to provide a method for improving composition and spatial configuration in landscape level data when applying imputation schemes such as kNN. The methodological framework comprises two steps: (i) composition at landscape level is preserved by a restricted imputation technique; and (ii) composition and spatial configuration within forest stands is improved by rearranging imputed sample-plots between stands. The method was demonstrated in a case study that showed promising results. [Copyright &y& Elsevier]
- Published
- 2012
- Full Text
- View/download PDF
5. Extension, advice and knowledge systems for private forestry: Understanding diversity and change across Europe.
- Author
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Lawrence, Anna, Deuffic, Philippe, Hujala, Teppo, Nichiforel, Liviu, Feliciano, Diana, Jodlowski, Krzysztof, Lind, Torgny, Marchal, Didier, Talkkari, Ari, Teder, Meelis, Vilkriste, Lelde, and Wilhelmsson, Erik
- Subjects
FOREST landowners ,FORESTS & forestry ,FOREST management ,VIRTUAL communications ,FOREST policy ,DELIVERY of goods - Abstract
• FOrestry Knowledge and Information Systems (FOKIS) in Europe are changing as ownership and policy change. • Patterns of persuasive or coercive communication vary with geography and politics. • Policy demands from forests are broadening from timber to wider ecosystem services. • FOKIS are becoming more democratic, participatory and negotiated. • Advisory services are moving from public to private sector. The decisions and actions of private forest owners are important for the delivery of forest goods and services. Both forest ownership, and policies related to forest owners, are changing. Traditionally in most countries, government extension officers have advised and instructed forest owners, but this is evolving, with greater importance given to a range of actors, objectives, and knowledge types. Drawing on literature and mixed data from 10 countries in Europe, this paper explores how forestry advisory systems can be conceptualized, and describes their current situation in Europe. Drawing parallels with the concept of AKIS (Agricultural Knowledge and Information Systems), we propose the term FOKIS (FOrestry Knowledge and Information Systems), as both a system (a purposeful and interdependent group of bodies) and a method for understanding such systems. We define four dimensions for describing FOKIS: owners, policy goals, advice providers, and tools. We find different roles for extension in countries with centrally controlled, highly regulated forest management, and advisors in regions where forest owners have more freedom to choose how to manage their forest. We find five trends across Europe: increasing flexibility, openness and participation of owners as sources of information; increasing reliance on information and persuasion rather than enforced compliance; a shift of attention from timber to a wider range of ecosystem services such as biodiversity and recreation; a shift of funding and providers from public to private sector; emergence of new virtual communication tools. The approach provides a way to make sense of comparisons and change in FOKIS, and opens up an important research field. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
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