scholarly journals Some Considerations in Modelling Private Woodlot Timber Supply

1990 ◽  
Vol 66 (1) ◽  
pp. 41-44 ◽  
Author(s):  
S. E. Clements ◽  
M. S. Jamnick

Private woodlot owners have diverse backgrounds, ownerships, and forest management objectives. Among these management objectives timber production may be of secondary importance. The diversity of forest landowners and ownerships results in considerable uncertainty in availability of timber from these lands. In this paper we use a literature review to identify the variables and techniques that are important to determining timber supply from private woodlots. We also discuss how models designed for timber supply analyses under a single owner objective are invalid for modelling private woodlot timber supply, and suggest ways to modify existing timber supply models to incorporate ownership variability.

1999 ◽  
Vol 23 (3) ◽  
pp. 175-178 ◽  
Author(s):  
Jianbang Gan ◽  
Stephen H. Kolison

Abstract This study investigated the characteristics of minority forest landowners and their forest resources in Macon and Bullock counties in Alabama through a landowner survey. The size of forestland held by these landowners was relatively small, with a mean of 113 ac. Most of their forests were mixed pine and hardwood stands. The top ranked management objectives of these landowners were for timber production and wildlife (hunting). About two-thirds of these landowners have thinned or harvested their forests. However, the forestland has not significantly contributed to the landowners' income. The lack of capital, labor, and knowledge of forest management and marketing impeded the landowners from generating more benefits from their forestland. South. J. Appl. For. 23(3):175-178.


2010 ◽  
Vol 40 (4) ◽  
pp. 597-610 ◽  
Author(s):  
Anne-Hélène Mathey ◽  
Harry Nelson

We explore how forest resource managers can respond to a potential outbreak of mountain pine beetle ( Dendroctonus ponderosae Hopkins, 1902) by assessing how well different forest management strategies achieve various management objectives over time. Strategies include targeting at-risk stands as well as increasing harvest levels. Outcomes are evaluated on the basis of volume flows, net revenues, and the age class structure of the ending inventory. We use a spatially and temporally explicit model to simulate forest management outcomes and consider two different scenarios, one in which the attack occurs early and one where it is delayed. The model utilizes a planning with recourse approach in which the firm can reevaluate its harvesting schedule following the attack. We use company data from west-central Alberta for a 40-year planning exercise. The timing of the attack resulted in small differences in timber supply. However, most strategies performed better financially under an early attack, which limits the harvest of marginal stands. Increasing harvest levels performed better in economic terms but resulted in a very young growing stock with little old forest. The success of any strategy is linked to the timing of the attack and how it affects the growing stock, subsequently impacting timber and revenue flows.


2020 ◽  
Vol 77 (2) ◽  
Author(s):  
Tero Heinonen ◽  
Timo Pukkala ◽  
Antti Asikainen

Abstract Key message Forest owners who maximize profitability with a low discount rate or whose management goals are related to conservation and recreation, rarely sell timber. These owners make it difficult to achieve the high harvesting targets of the growing bioeconomy sector of Finland. To increase timber supply, these landowners should be informed about alternative silvicultural methods. Context The round wood harvests from Finnish forests are increasing and approaching to the level of maximum sustainable cut. Cutting budget calculations assume that forests are harvested in an optimal way for national timber supply. The calculations ignore the variability of landowners’ forest management preferences. Aims This study analyzed the effect of variation in the management objectives and silvicultural preferences of forest landowners on the forecasted timber supply from Finnish forests. Methods Forest owners were divided into savers (net present value maximized with a 1% discount rate), average owners (3% discount rate), and investors (5% discount rate). The owners of each group were further divided into three groups: those who allow only continuous cover management (12%), owners who use only rotation forest management (10%), and indifferent landowners who may use both silvicultural systems (78%). Scenarios were composed of management prescriptions that were optimized separately for the different groups of forest landowners. Results Compared to the even-flow timber drain scenario for rotation forest management (calculated without acknowledging the varying preferences of landowners), the scenario where the owners’ preferences varied decreased harvested volume by 15–19% during a 100-year calculation period. The main reason for the difference was the saver type of landowners who rarely sell timber. Conclusion It was concluded that variation of the preferences of forest landowners may make it challenging to meet the increasing harvesting targets of the growing bioeconomy of Finland.


1999 ◽  
Vol 75 (6) ◽  
pp. 945-954 ◽  
Author(s):  
Thom A. Erdle

A key forest management challenge in Canada, and elsewhere, is to strike an acceptable balance between the various values for which forests are to be managed. Striking that balance between commodity, aesthetic, environmental, and other values is difficult because (a) what defines an acceptable balance varies between parties who weight such values differently, and (b) some values are incompatible, in that managing for the betterment of one occurs at the expense of another. Timber supply is an important economic value in Canada, but there is clear evidence of an increasing social demand to favour non-timber values in forest management to a greater extent than has occurred in the past. Accommodating this demand often has negative timber supply consequences, thus forcing difficult decisions involving tradeoffs between values. Such tradeoffs occur when management decisions affect any of three primary factors of timber production, namely, landbase size, stand growth rates, and treatment timing choices. In New Brunswick, where aggressive industrial development has resulted in intensive use of the forest for timber production, the tradeoffs between timber and non-timber values are particularly difficult to make. Using New Brunswick as an example, this paper explores the mechanisms by which forest values conflict. It employs a simple land allocation schematic to illustrate the nature of that conflict, to identify plausible future scenarios in which that conflict is likely to intensify, and to discuss possible mitigating strategies. Key words: forest management, land zoning, nontimber values, trade-offs, New Brunswick forestry


2011 ◽  
Vol 35 (2) ◽  
pp. 87-92 ◽  
Author(s):  
Omkar Joshi ◽  
Sayeed R. Mehmood

Abstract This study segments nonindustrial private forest (NIPF) landowners in Arkansas, Florida, and Virginia on the basis of their forest management objectives and their willingness to supply wood-based biomass for bioenergy. A two-step cluster analysis was used to segment NIPF landowners of all three states into three distinct groups, namely bioenergy conservationists, multiple-objective landowners, and passive landowners. The results revealed that there was notable variation among NIPF landowners in terms of their interest in wood-based bioenergy and forest management objectives. A solid majority of bioenergy conservationists (58%) were familiar with the concept of producing alternative fuels from wood. Similarly, multiple-objective landowners' willingness to supply wood-based biomass (63%) was highest among all three segments. Bioenergy-friendly conservationists and multiple-objective landowners were more likely to be receptive to outreach activities. Further, given low motivation scores for passive managers, this group of landowners would require focused outreach programs to increase their interest in bioenergy. This study suggested appropriate outreach and educational strategies to communicate with each audience segment.


Forests ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 245
Author(s):  
Nguyen Dang Cuong ◽  
Köhl Michael ◽  
Mues Volker

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.


Britain possesses a forest area which is one of the smallest in Europe in relation to its population and land area. In the past, forests have been felled to make way for farming and to supply timber for ships, houses, fuel and metal smelting. Timber was a key to sea power, and repeatedly the availability of home timber supplies has proved crucial in time of war. The nation’s dwindling reserves of timber have been a source of anxiety since Tudor times and periodic surges of planting for timber production by private landowners took place until about 1850. Thereafter, interest faded with the advent of the iron ship, the Industrial Revolution and the availability of cheap timber imports. Govern­ ment activity was minimal until a national forest authority was formed in 1919 to create a strategic timber reserve. Since 1958 there have been frequent policy reviews to assess the changing needs of the nation for timber and the new values associated with the social and environmental benefits of forests.


Author(s):  
Ibnu Budiman

This chapter analyzes whether the current policy for climate-smart agriculture meets the demands of climate justice and respects the rights of smallholders, and if not, how it should be amended. The study is based on a literature review and several interviews with climate-smart agriculture actors from diverse backgrounds: (1) consultant or practitioner, (2) farmer, (3) business or entrepreneur, (4) scientist. To examine the climate-smart agriculture concept and its implementation, the following ethical positions are mainly considered: (1) maximalist, (2) minimalist, (3) Pogge´s intermediate position, (4) Nussbaum's capability approach, (5) Kantian, (t) altruism. This study found that the current climate-smart agriculture approaches are not fairly implemented, due to the unjust sharing of benefits of income and burdens of emission reduction costs, among smallholders and big industries. According to the principles of climate justice, this sharing proportion should be equally distributed based on an individual's capacities and poverty should also be taken into consideration.


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