Le nouveau régime forestier du Québec

1988 ◽  
Vol 64 (1) ◽  
pp. 3-8 ◽  
Author(s):  
Gilbert G. Paille ◽  
Robert Deffrasnes
Keyword(s):  
Forest Management ◽  
Economic Activity ◽  
Wood Fibre ◽  
Timber Supply ◽  
New Forest ◽  
Sustained Yield

The Province of Quebec has recently passed legislation that introduces a new forest system based on sustained yield, the allocation of timber supply and forest management agreements to industry, and a new sharing of public forest management responsibilities. This reform, which became necessary owing to a shortage of wood fibre, will ensure the perpetuity of a resource that sustains the economic activity of the province. It involves numerous major changes — the true impact of which will be felt over the long term — and which will require all the knowledge and expertise of Quebec's foresters.

scholarly journals Timber supply and economic impacts associated with sustained yield unit size

1995 ◽  
Vol 71 (5) ◽  
pp. 647-656 ◽  
Author(s):  
K. B. Rouck ◽  
J. D. Nelson
Keyword(s):  
Social Economic ◽  
Spatial Modelling ◽  
Wildlife Habitat ◽  
Unit Size ◽  
Short Term ◽  
Environmental Implications ◽  
Timber Supply ◽  
Sustained Yield ◽  
Spatial Forest Planning

Partitioning the forest into sustained yield units is a complex task that involves assessing timber supply, allocation of cutting rights, and social, economic, and environmental impacts. There are numerous ways to vary the timing and intensity of harvests within individual drainages while still meeting the objectives of sustained yield. In this paper we use a spatial forest planning model to examine economic and environmental implications of varying the sustained yield unit size. Harvests for a Timber Supply Area in British Columbia are calculated using 4 sizes of sustained yield units: 1)12 small units, 2) four moderately sized units 3) two large units, and 4) one unit representing the entire forest. Relative to the 12 small units, short-term (20 year) harvest levels for the Timber Supply Area increased by 7.6%, 10%, and 10.8% for the 4, 2 and 1 unit aggregations, respectively. Medium-(21-60 years) and long-term (61-120 years) increases in harvest levels averaged approximately 75% and 40%, respectively, of those realized in the short-term. Reductions in the length of active road and delivered wood costs were also observed as sustained yield units increased in size. Small units often restrict short-term timber supply and provide continuous road access to important wildlife habitat. While larger units afford greater flexibility in meeting short-term harvests, the intensity of the harvest within individual drainages increases. However, with large units the inactive drainages can be closed for extended periods, thus limiting human access to the active drainages. Key words: timber supply, sustained yield unit size, spatial modelling, economics

Evaluation of forest management strategies based on Triad zoning

2015 ◽  
Vol 91 (01) ◽  
pp. 40-51 ◽  
Author(s):  
Chris Ward ◽  
Thom Erdle
Keyword(s):  
Forest Management ◽  
Social Economic ◽  
Management Strategies ◽  
Short Term ◽  
Timber Supply ◽  
Timing Offset ◽  
Intensively Managed ◽  
Selling Point ◽  
Forecast Time

Triad forest management was analyzed for a New Brunswick Crown License. Fifteen forest value indicators were used to describe social, economic, and environmental outcomes from forecast Triad scenarios, including 36 scenarios where reserves and intensively managed area varied in 5% increments from 10% to 35%. Some indicators were most sensitive to intensive area (e.g., silviculture cost), other to reserve area (e.g., area containing large snags), and still others to extensive area (e.g., average harvest levels). Some indicators averaged arithmetically, and could be kept constant if increases in reserves were accompanied by equal increases in intensive area. Such averaging for timber supply is often a selling point made by Triad advocates. Indeed, many different scenarios generated the same annual harvest when averaged over the 100-year forecast time horizon; however, immediate reductions in operable timber inventory resulting from reserve increases caused short-term harvest reductions, while future gains in yield from intensive area increases caused long-term harvest increases. This timing offset between losses and gains of operable volume, and its effect on harvest timing, may be impediments to Triad implementation in jurisdictions where timber supply is fully utilized. This analysis presents methods and results that may be of value to forest managers contemplating implementation of Triad zoning.

Planning a system of permanent sample plots for integrated long-term studies of community-based forest management

1970 ◽  
Vol 16 (2) ◽  
pp. 3-11 ◽  
Author(s):  
H Meilby ◽  
L Puri ◽  
M Christensen ◽  
S Rayamajhi
Keyword(s):  
Forest Management ◽  
Key Words ◽  
Research Note ◽  
Managed Forests ◽  
Community Based ◽  
Permanent Sample Plots ◽  
Long Term Studies

To monitor the development of four community-managed forests, networks of permanent sample plots were established in 2005 at sites in Chitwan, Kaski and Mustang Districts, Nepal. This research note documents the procedures used when preparing for establishment of the plot networks, evaluates the applied stratification of the forest on the basis of data gathered in pilot surveys conducted in the early 2005, and provides a discussion on the implications of the choices made. Key words: Community-managed forests; permanent sample plots; stratification; allocation; estimates Banko Janakari Vol.16(2) 2006 pp.3-11

Research on the Economic Organization Environmental Impact

2017 ◽  
Vol 68 (3) ◽  
pp. 599-601
Author(s):  
Dan Paul Stefanescu ◽  
Oana Roxana Chivu ◽  
Claudiu Babis ◽  
Augustin Semenescu ◽  
Alina Gligor
Keyword(s):  
Economic Activity ◽  
Economic Organization ◽  
Economic Activities ◽  
Environmental Implications ◽  
Minimal Impact ◽  
Wide Range ◽  
Material Environment ◽  
Negative Effect ◽  
Harmful Effects

Any economic activity carried out by an organization, can generate a wide range of environmental implications. Particularly important, must be considered the activities that have a significant negative effect on the environment, meaning those which pollute. Being known the harmful effects of pollution on the human health, the paper presents two models of utmost importance, one of the material environment-economy interactions balance and the other of the material flows between environmental factors and socio-economic activities. The study of these models enable specific conditions that must be satisfied for the economic processes friendly coexist to the environment for long term, meaning to have a minimal impact in that the residues resulting from the economic activity of the organization to be as less harmful to the environment.

scholarly journals Land Use Spatial Optimization for Sustainable Wood Utilization at the Regional Level: A Case Study from Vietnam

Forests ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 245
Author(s):  
Nguyen Dang Cuong ◽  
Köhl Michael ◽  
Mues Volker
Keyword(s):  
Land Use ◽  
Forest Management ◽  
Forest Plantations ◽  
Land Resource ◽  
Forest Landscape ◽  
Timber Supply ◽  
Landscape Restoration ◽  
Forest Landscape Restoration ◽  
Wood Utilization

Forest landscape restoration is a widely accepted approach to sustainable forest management. In addition to revitalizing degraded sites, forest landscape restoration can increase the supply of sustainable timber and thereby reduce logging in natural forests. The current study presents a spatial land use optimization model and utilizes a linear programming algorithm that integrates timber production and timber processing chains to meet timber demand trade-offs and timber supply. The objective is to maximize yield and profit from forest plantations under volatile timber demands. The model was parameterized for a case study in Thai Nguyen Province, Vietnam, where most forest plantations grow Acacia mangium (A. mangium). Data were obtained from field surveys on tree growth, as well as from questionnaires to collect social-economic information and determine the timber demand of local wood processing mills. The integration of land use and wood utilization approaches reduces the amount of land needed to maintain a sustainable timber supply and simultaneously leads to higher yields and profits from forest plantations. This forest management solution combines economic and timber yield aspects and promotes measures focused on economic sustainability and land resource efficiency.

Long-term response in nutrient load from commercial forest management operations in a mountainous watershed

2021 ◽  
Vol 494 ◽  
pp. 119312
Author(s):  
C. Deval ◽  
E.S. Brooks ◽  
J.A. Gravelle ◽  
T.E. Link ◽  
M. Dobre ◽  
...  
Keyword(s):  
Forest Management ◽  
Nutrient Load ◽  
Mountainous Watershed ◽  
Commercial Forest ◽  
Term Response

Forest Management Decision-Making: Art or Science?

1981 ◽  
Vol 57 (5) ◽  
pp. 233-238 ◽  
Author(s):  
T. H. Hall
Keyword(s):  
Decision Making ◽  
Forest Management ◽  
Simulation Modeling ◽  
Forest Planning ◽  
Management Decision ◽  
Creative Design ◽  
Management Decision Making ◽  
Evaluation Techniques ◽  
Making Art

This paper describes an approach to forest management decision-making. Acknowledging both objective and subjective elements, the approach offers a methodology to encourage more creative design in forest planning. It uses the descriptive capabilities of simulation modeling in tandem with the prescriptive capabilities of graphical evaluation techniques, to facilitate the use and interpretation of technical forestry information in decision-making problems. It emphasizes a need for an overview of long-term resource behavior as a prerequisite to, and a framework for, forest planning.

scholarly journals FORECAST OF THE REFORMATION OF THE KRASNOYARSK RESERVOIR COASTAL ZONE IN THE KURTAK VILLAGE

2019 ◽  
Vol 29 (2) ◽  
pp. 267-278
Author(s):  
G.Yu. Yamskikh ◽  
A.V. Kozhukhovsky ◽  
K.V. Marusin ◽  
E.A. Fedorova
Keyword(s):  
Economic Activity ◽  
Similar Type ◽  
Coastal Processes ◽  
The Past ◽  
The Reformation ◽  
Long Term Monitoring ◽  
Verification Of Models ◽  
The Village ◽  
Term Monitoring

The article presents the analysis and prediction of coastal processes at the site of the Krasnoyarsk reservoir in the village of Kurtak where there are the most intensive processes of coastal reshaping. Over the past 50 years, the coast has receded here by an average of 350 m and continues to actively collapse at a speed of 3-5 m per year. Despite the fact that the intensity of coastal processes in this area has significantly decreased (mainly due to the general decrease in the level of the Krasnoyarsk reservoir), the rate of retreat of the shore is still high. However, it can be concluded that for the researched area the coastal reshaping does not pose a real threat to economic activity in the next 30 years. The article tested various methods of forecasting coastal processes, selected the most appropriate for the shores of a similar type. Verification of models was carried out on the basis of data of long-term monitoring of the site under consideration, which gave the chance to compare results of forecasts on different techniques to real retreat of the coast on this site.

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