scholarly journals Searching for Pareto Fronts for Forest Stand Wind Stability by Incorporating Timber and Biodiversity Values

Forests ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 583 ◽  
Author(s):  
Ján Merganič ◽  
Katarína Merganičová ◽  
Jozef Výbošťok ◽  
Peter Valent ◽  
Ján Bahýľ ◽  
...  
Keyword(s):  
Forest Management ◽  
Objective Assessment ◽  
Forest Stand ◽  
Wood Production ◽  
Management Planning ◽  
Clear Cutting ◽  
Pareto Fronts ◽  
Wind Stability ◽  
The Impact ◽  
Regeneration Systems

Selecting a variant of forest regeneration cuttings that would ensure fulfilling multiple, frequently conflicting forest functions is a challenging task for forest management planning. The aim of this work is to present an efficient and complex analysis of the impact of different forest management scenarios on stand wind stability, timber production (economy), and biodiversity of a secondary mixed temperate forest in Central Europe. We evaluated four different harvest-regeneration systems: clear-cutting, shelter-wood, selection cutting, and no-cutting using theSIBYLA growth simulator. We simulated forest stand development over time and applied 450 variants of 4 harvest-regeneration systems. The selected outputs from the simulator were used as indicators of the fulfilment of wood-production and non-wood-production functions. The calculated indicators were forest stability (height/diameter ratio), economic efficiency (soil expectation value, SEV), and tree species diversity (Shannon index). These indicators were used as inputs for multi-criteria a posteriori decision analysis using the weighted summation method and Pareto fronts. The results revealed substantial trade-offs among the three investigated criteria. The decision space was highly sensitive to their weighting system and included all regeneration systems. The Pareto fronts for wind stability revealed that the maximum stability could be achieved with shelter-wood based on target diameter. This variant, however, fulfils the other two examined functions only to a limited extent (SEV and diversity only to 9% and 27% of their absolute maxima). Other similar variants achieve high stability by sacrificing the diversity and increasing SEV, simultaneously. If a high diversity level is favoured, optimal stability could be achieved by the selection system. The proposed approach enables objective testing of a large number of variants, and an objective assessment of stand management planning since it provides us with the complex multi-dimensional picture about the impact of criteria weights on the selection of optimal variants, and the relative fulfilment of individual criteria.

Forest harvesting, resource-based tourism, and remoteness: an analysis of northern Ontario's sport fishing tourism

2005 ◽  
Vol 35 (2) ◽  
pp. 401-409 ◽  
Author(s):  
Len M Hunt ◽  
Peter Boxall ◽  
Jeffrey Englin ◽  
Wolfgang Haider
Keyword(s):  
Forest Management ◽  
Planning Process ◽  
Forest Harvesting ◽  
Hedonic Pricing ◽  
Sport Fishing ◽  
Management Planning ◽  
Revenue Generation ◽  
Forest Management Planning ◽  
Management Schemes ◽  
The Impact

This paper assesses the impact that the routine application of Ontario's forest management planning process has on the revenue generation of sport fishing tourism sites. The analysis employs a hedonic pricing model to examine jointly these effects on revenue for three tourism experiences. These tourism experiences offer different degrees of remoteness, and as a consequence, require different levels of effort and cost to visit. Modelling the relationship between price and attributes of sites such as remoteness permits the analysis to forecast the revenue generation potential of sport fishing tourism sites under a range of forest management schemes. The results show that the extent of forest harvesting had no statistical relationship with prices charged for fishing packages at road-, boat-, or train-accessible sites and a negative but small impact on the prices charged for fishing packages at sites accessible by float plane.

The Impact of Uncertainty Concerning Historical Burned Area Estimates on Forest Management Planning

2013 ◽  
Vol 59 (5) ◽  
pp. 578-588 ◽  
Author(s):  
David Savage ◽  
B. Mike Wotton ◽  
David L. Martell ◽  
Douglas G. Woolford
Keyword(s):  
Forest Management ◽  
Burned Area ◽  
Management Planning ◽  
Forest Management Planning ◽  
The Impact

Forests for wood production and stress recovery: trade-offs in long-term forest management planning

2015 ◽  
Vol 134 (5) ◽  
pp. 755-767 ◽  
Author(s):  
Eva-Maria Nordström ◽  
Ann Dolling ◽  
Erik Skärbäck ◽  
Jonathan Stoltz ◽  
Patrik Grahn ◽  
...  
Keyword(s):  
Forest Management ◽  
Stress Recovery ◽  
Wood Production ◽  
Management Planning ◽  
Forest Management Planning ◽  
Trade Offs

Entwicklung der Finanzierung einer multifunktionalen Waldbewirtschaftung in den Forstbetrieben öffentlicher Waldeigentümer im schweizerischen Alpenraum | Development of Financing of a Multi-Functional Forest Management for Forest Enterprises of Publicly Owned Forest in the Alpine Region of Switzerland

1999 ◽  
Vol 150 (11) ◽  
pp. 416-428 ◽  
Author(s):  
Albin Schmidhauser ◽  
Franz Schmithüsen
Keyword(s):  
Forest Management ◽  
Forest Policy ◽  
Well Being ◽  
Alpine Region ◽  
Management Control ◽  
Modern Concept ◽  
Wood Production ◽  
Publicly Owned ◽  
Forest Enterprises ◽  
The Impact

With the federal forestry legislation coming into force in 1993, a multi-functional forest management has been established as the fundamental objective of national forest policy in Switzerland. This modern concept was already developed with the beginning of the federal forest policy during the second half of the last century with the effect that forest enterprises already perform extensive activities in the service sector. For publicly owned forest enterprises in the Alpine region the payment flows clearly show at which degree multi-functional management takes effect on the corresponding financing. Services provided by forest enterprises in the sectors of protection(safe-guarding) and well-being are not only financed by the profits obtained from wood production, but also by budget positions especially established for this purpose. Since the 1980s, the sectoral financing for providing services by the forest enterprises has at least partially contributed to the off-setting of the impact caused by unfavourable economic conditions in wood production. Due to the on-going planning process for the realisation of co-ordinated regional or cantonal policies as well as inter-country developments within the realms of the Alpine convention,the basis for the financing of public forest enterprises based on multi-functional forest management will be even more strongly differentiated in coming years. Pilot projects carried out under the new financial equalisation system between the federal and cantonal governments suggest that multifunctional forest management will form a solid basis for the development and implementation of forest enterprises strategies. On the operational level it is necessary to develop and apply suitable instruments for cost and management control.

Partial forest harvesting effects on erosion flux in a headwater catchment (Strengbach catchment, France)

2020 ◽  
Author(s):  
Solenn Cotel ◽  
Daniel Viville ◽  
Marie-Claire Pierret
Keyword(s):  
Forest Management ◽  
Stream Water ◽  
Forest Harvesting ◽  
High Flow ◽  
Main Stream ◽  
Clear Cutting ◽  
The Mean ◽  
The Impact ◽  
Strengbach Catchment ◽  
Tree Harvesting

<p>Due to the increasing global need for wood, forest management and especially tree harvesting have become increasingly challenging for the sustainability of forest ecosystems. Indeed, the natural dynamics of solid exports in rivers can be strongly disturbed by anthropogenic activities including forestry. The impact of forest management on erosion flux can be due to tree logging but also to forest roads, skid trails, stream crossings required for silvicultural operations.</p><p>The impact of forestry on solid exports in mountainous environment has been studied in a small granitic watershed (0.8 Km²) located in the Vosges massif. Between July and August 2014, the Strengbach catchment (Observatoire Hydro-Géochimique de l’Environnement) was concerned by clear-cutting on some plots located near the main stream. This small extended forestry operation (2.3% of the catchment) involved the logging of trees and the implementation of skid trail network including poorly designed stream crossings. The bedload flux was estimated since April 2009. The suspended sediment (SS) flux was evaluated on the basis of stream water samples collected every 16 hours and during high-flow events since December 2012.</p><p>Before the forestry operation, the mean bedload flux was 2.5 T/yr±8% for a mean outlet runoff of 730 mm/yr, although the SS flux was 7.7 T/yr±10% for an outlet runoff of 950 mm/yr.</p><p>The forestry operation occurring in 2014 has involved a significant and quasi-immediate impact on the SS concentration and flux. As an illustration, the mean SS concentration of the stream was 129 mg/L (outside high-flow periods) the fortnight after the forestry operation beginning, whereas it was only 6.2 mg/L just before. In addition, the forestry operation led to approximately 5 to 6 times larger SS flux than that expected for the July-August 2014 period. The impact on annual SS flux was significant during two hydrological years, with an increase of +100% and +50% for 2014 and 2015, respectively.  This relatively high disturbance is mainly due to the implementation of non-improved stream crossings and skid trails, responsible for the introduction of a huge amount of fine soil particles into the stream. At the opposite, no clear influence of the forestry operation on the bedload export could be observed in 2014 whereas it was 2 times higher than that expected the following year. This delay of the tree harvesting impact on coarse sediment export can be explained by the trapping of bedload upstream of the logs constituting stream crossings during the forestry operation. After the logs removal, the trapped sediments needed several flood events to reach outlet, explaining the delay. Overall, a post-logging recovery time of approximately 10 months can be assumed for the solid exports following the forestry operation.</p>

scholarly journals Using Naturalness for Assessing the Impact of Forestry and Protection on the Quality of Ecosystems in Life Cycle Assessment

2021 ◽  
Vol 13 (16) ◽  
pp. 8859
Author(s):  
Sylvie Côté ◽  
Robert Beauregard ◽  
Manuele Margni ◽  
Louis Bélanger
Keyword(s):  
Life Cycle Assessment ◽  
Species Richness ◽  
Life Cycle ◽  
Forest Management ◽  
Black Spruce ◽  
Management Strategies ◽  
Assessment Model ◽  
Wood Production ◽  
Management Scenarios ◽  
The Impact

A novel approach is proposed to evaluate the impact of forestry on ecosystem quality in life cycle assessment (LCA) combining a naturalness assessment model with a species richness relationship. The approach is applied to a case study evaluating different forest management strategies involving concomitantly silvicultural scenarios (plantation only, careful logging only or the current mix of both) combined with an increasing share of protected area for wood production in a Québec black spruce forest. The naturalness index is useful to compare forest management scenarios and can help evaluate conservation needs considering the type of management foreseen for wood production. The results indicate that it is preferable to intensify forest management over a small proportion of the forest territory while ensuring strict protection over the remaining portion, compared to extensive forest management over most of the forested area. To explore naturalness introduction in LCA, a provisory curve relating the naturalness index (NI) with the potential disappeared fraction of species (PDF) was developed using species richness data from the literature. LCA impact scores in PDF for producing 1 m3 of wood might lead to consistent results with the naturalness index but the uncertainty is high while the window leading to consistent results is narrow.

scholarly journals Harvendusraiete tasuvuse analüüs ja pikaajalise mõju simulatsioonid Järvselja õppe- ja katsemetskonnas

2020 ◽  
Vol 72 (1) ◽  
pp. 54-63
Author(s):  
Paavo Kaimre ◽  
Priit Vellak ◽  
Meelis Teder
Keyword(s):  
Forest Management ◽  
Net Present Value ◽  
Net Income ◽  
Wood Production ◽  
Present Value ◽  
Management Scenarios ◽  
Fuel Wood ◽  
Stand Management ◽  
Long Run ◽  
The Impact

AbstractThe results of the analysis of profitability and impact of thinning on wood production in Järvselja Training and Experimental Forest Centre are presented in the article. The profitability was assessed on the basis of harvesting income and costs of logging operations in 2015–2017. The impact of thinning on the wood production was assessed using the MOTTI simulation program. Three different scenarios for the management of the stand were compared: 1) stand management in accordance with the Finnish forest management recommendations (Tapio recommendations), 2) management according to the Estonian Forest Management Regulations and 3) stand development without thinning. The results revealed that 61 thinnings out of the 70 were profitable. The average net income from thinning was 344 euros per hectare. Fuel wood accounted for 45% and pulpwood for 30% of the harvested timber. Net present value was applied as a criterion to assess the profitability of long-term management scenarios. Considering Tapio's recommendations, the total net present value was 33% higher and following Estonian forest management rules, it was 23% higher compared to the simulations without thinning. The results indicated that thinning is economically viable in the long run. In simulations without thinning, timber production is the highest, but the net present value of management is lower compared to simulations with thinning.

scholarly journals Democratising Terai Forestry Governance: Emerging Innovations in the Western Terai Region of Nepal

2009 ◽  
Vol 8 (2) ◽  
pp. 27-38 ◽  
Author(s):  
Bal Krishna Jamarkattel ◽  
Sindhu Prasad Dhungana ◽  
Srijana Baral ◽  
Bishwas Rana ◽  
Hari Dhungana
Keyword(s):  
Forest Management ◽  
Ad Hoc ◽  
Planning Process ◽  
Local Level ◽  
Management Planning ◽  
Forest Management Planning ◽  
The People ◽  
Management Context ◽  
The Government ◽  
The Impact

The Government of Nepal has had a high interest in the Terai forest in order to harness its enormous revenue potential. However, the policies and plans formulated to this end have not attained the intended results, as these have failed to fully understand the emerging complexities in the Terai. Accordingly, policy response has often been ad hoc, inconsistent and unstable, leading to confusion and conflict on Terai forest management. Drawing on the cases of three districts of Lumbini zone in the Western Terai of Nepal, this paper discusses the forest management context of Nepal Terai, and identifies key innovations that have emerged at district and local levels. It argues that these innovations have the potential for a creative transformation of forest management planning process at district and local level, and for their wider replication and diffusion. This paper also discusses key issues that need further attention so as to maximise the impact of these innovations by putting them into practice. It highlights that emerging complexity of Nepal Terai requires much wider stakeholder engagement in order to facilitate forest management planning and implementation that benefit both the government and the people. Full text is available at the ForestAction websiteDOI: http://dx.doi.org/10.3126/jfl.v8i2.2306 Journal of Forest and Livelihood 8(2) February 2009 pp.27-38

Impact of forest pests and fire on stand growth and timber yield: implications for forest management planning

1990 ◽  
Vol 20 (4) ◽  
pp. 391-404 ◽  
Author(s):  
David A. MacLean
Keyword(s):  
Forest Management ◽  
Spruce Budworm ◽  
Timber Supply ◽  
Forest Pests ◽  
Management Planning ◽  
Stand Growth ◽  
Forest Management Planning ◽  
Timber Yield ◽  
The Impact ◽  
Stand Yield

Impact of forest pests and fire on stand growth and timber yield is reviewed, with emphasis on spruce budworm (Choristoneurafumiferana (Clem.)). Damaging agents reduce tree growth, kill trees, destroy the commercial value of stands, and sometimes reduce yield in subsequent rotations. Sustainable harvest may be reduced by up to 60% by a severe spruce budworm outbreak and up to 40% by a 1% per annum loss to fire. Serious overestimation of future timber supply can therefore result from the failure to allow for catastrophic or continual small losses caused by fire or biotic agents. Current efforts in New Brunswick to explicitly incorporate effects of spruce budworm defoliation into forest management planning are described, including research studies into protection planning and delivery, damage detection, and defoliation-based growth forecasting. An improved understanding of the impact of insects, disease, and fire on stand yield and methods to incorporate this information into timber supply analyses are essential to reduce uncertainty about future timber supply.

Glarner Waldwirtschaft im letzten Viertel des 20. Jahrhunderts | Glarner Forest Management in the last quarter of the 20th Century

2002 ◽  
Vol 153 (7) ◽  
pp. 249-250
Author(s):  
Fritz Marti
Keyword(s):  
Forest Management ◽  
20Th Century ◽  
Logical Consequence ◽  
Mountain Forest ◽  
Wood Production ◽  
Looking Back

Looking back on the last quarter of the 20th century, we see that the most striking changes in forest management have come about following large and frequent catastrophes. Management– concerned solely with wood production in former times – is oriented more towards retaining stability of the stands nowadays. In addition, the aspect of tending and improving the environment continues to gain ground. The growing gap between expenditure and profit is particularly acute in Glarner mountain forest areas. The extension of promotional silvicultural measures, which widely determines today's management, is to be seen as a logical consequence.

Sign in / Sign up

Export Citation Format

Share Document