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1.
The recent rise of institutional timberland ownership has led to a significant change in the structure and conduct of the timber industry in the United States. In this study, we apply a two‐period harvest model to assess the timber harvesting behavior of various landowners at the stand level by utilizing USDA Forest Service Forest Inventory and Analysis data for nine southern states. Forest industry and institutional timberland owners were found to be more likely to conduct partial and final harvests than nonindustrial private forest landowners. Aggregately, Timberland Investment Management Organizations were found to be most, and timberland Real Estate Investment Trusts to be least, price‐responsive among ownership groups.  相似文献   

2.
Previous studies have reported significant gains from adopting the adaptive harvest strategy under conditions of timber price uncertainty. For the final harvest decision in even-aged stand management, the adaptive strategy typically means that a stand is harvested when the timber price is sufficiently high, whereas low prices are avoided by postponing the harvest. Such a harvest behavior may have significant impacts on the future price process, which in turn affects the landowner's profits. Moreover, it would certainly affect the timber-based industry and consumers. This paper assesses these impacts in a hypothetical timber market, using the Faustmann rule (FR) as a benchmark. The results show that changing from the FR to the reservation price strategy (RPS) reduces the supply of timber, thereby pushes up the price level. The RPS significantly reduces the short-run random variation of timber price. In the long run, both the mean and the variance of the timber price tend to stabilize. Depending on the anticipated price variation underlying the RPS, the expected timber price may be close to, or much higher than, the benchmark level, and the variance of price can be very large or very small. The welfare effect of the RPS is small if the anticipated variance of timber price used to optimize the RPS is small. If the anticipated variance of price is large, then the RSP leads to significant increase in the landowners’ profits and at the same time reduces the consumer surplus by a much larger amount.  相似文献   

3.
This study presents a model that determines the effect of current and future payments for carbon sequestration, proportion of wood that sequesters carbon in long-lived product and landfills, and amount of carbon in the wood, on the optimal current forest harvest age. Increased current and future prices of carbon would lead to a longer and shorter harvest age, respectively. Higher current prices of carbon could increase the supply of carbon at a decreasing rate due to longer harvest ages. Moderate prices of carbon would encourage landowners to maintain standing timber. Policies focused then on stimulating landowners to hold timber on forestlands may not necessarily imply higher amounts of sequestered carbon. Increased future values of carbon could imply a reduction of the current supply of carbon.  相似文献   

4.
The price of timber stumpage is one of the few natural-resource rents that can be directly observed as a market price. Rules for optimal timber harvesting under uncertainty have been found to depend on whether the timber rent price is non-stationary or stationary. In this study we extend previous research by Hultkrantz (1995) that tested for unit-root with an exogenous break point in Swedish stumpage prices from 1909 to 1990, employing data up to 2012, hence for 104 years, and unit-root tests with endogenously selected break points. We find support for a structural level break at the end of WW2 and that non-stationarity can be rejected. We show that this is a robust conclusion. There is thus no sign of a new break in the extended recent time period and no signal of a secular increase of timber resource scarcity.  相似文献   

5.
Bequest Intentions of Forest Landowners: Theory and Empirical Evidence   总被引:2,自引:0,他引:2  
This article studies in an overlapping generations forest economy the conditions under which money and/or timber bequests occur across generations, assuming the usual case of one–sided altruism. We assume nonindustrial landowners have preferences for consumption and for amenities from unharvested forest stock. Within this framework, we examine conditions under which landowners choose to leave timber or money bequests, and we show how taxation is important to these conditions. Empirical evidence from bequests decisions for a cross–section sample of nonindustrial landowners in Virginia is then used to investigate the hypotheses suggested by the model with regard to the motive to leave bequests. The results are broadly consistent with the theoretical findings.  相似文献   

6.
This paper presents an efficient and flexible approach of determining optimal thinning strategies for mixed-species stands with stochastic timber prices. The approach aims to determine the optimal stock of each species to be maintained in the stand conditional on the observed stand state and timber prices, whereas thinning intensity is given by the difference between the existing and the optimal stocks. For demonstration purpose, the approach is applied to determine the optimal thinning strategies for an example stand of Scots pine (Pinus Sylvestris L.) and Norway spruce (Picea abies L. Karst.) in northern Sweden. The optimal stock of each species is formulated as a parametric function of stand age and stumpage prices of the respective species. A reservation price function is constructed to determine the optimal time of clearcut based on the observed stand state and timber prices. The parameters of the optimal stock-level and reservation price functions are determined by maximizing the expected present value of the stand. The results indicate that using the optimal stock-level function approach can significantly improve the thinning decisions for mixed species stand with stochastic timber prices.  相似文献   

7.
Our purpose is to estimate a model of non-industrial forest landowner behavior that considers certain types of behavior that have escaped discussion and rigorous investigation in the literature, yet which are critical to future policy making. Our focus on the many different but related decisions landowners make broadens the typical understanding of landowner behavior to show how bequest motives, debt and participation in non-timber activities, and harvesting decisions are interrelated and dependent on landowner preferences, market, and land characteristics.  相似文献   

8.
采伐限额管理制度对农户抚育采伐行为的影响分析   总被引:3,自引:0,他引:3  
依据农户理性人假设和实际调研数据,深入地分析了森林采伐限额管理制度对农户抚育采伐行为的影响,研究结论认为:森林采伐限额管理制度不影响农户抚育采伐决策,农户抚育采伐决策主要受到抚育采伐技术规程、抚育采伐的木材生产成本和短小材和小径材市场价格的影响,在抚育采伐技术规程的严格约束下,农户往往会推迟抚育采伐的开始期,并在采伐木的选择上做出"砍中留大留小"的决策,这说明严格的抚育采伐技术规程并未达到提高森林质量、促进森林资源增长的政策设计初衷,政府需要对森林抚育采伐的技术规程进行调整。  相似文献   

9.
Optimizing harvesting decisions has been a matter of concern in the forestry literature for centuries. However, in some tropical countries, growth models for fast-growing tree species have been developed only recently. Additionally, environmental services of forests gain importance and should be integrated in forest management decisions. We determine the impact of a joint production of timber and carbon sequestration on the optimal rotation of a fast-growing species in north-western Ecuador, comparing different optimization approaches and taking the latest developments of the Kyoto Protocol into account. We find that payments for carbon sequestration have substantial impact on the rotation length: in contrast to an optimum of 15 years when focusing on timber production only, joint production leads to a doubling of the rotation length, which means that timber harvest should be postponed until the end of the carbon project.  相似文献   

10.
In resource accounting, simple theoretical models built upon efficiency prices have been developed to capture changes in social welfare generated by natural resources. We examine whether changes in market stumpage prices, as proxies for efficiency prices, have actually reflected changes in the physical timber inventories in Finland and Sweden during the past seventy years. Cointegration and unit root tests show that no long-term equilibrium relationships exist between the timber prices and stocks. After identifying a potential reason for the result, the basic theoretical growth model is slightly elaborated to provide a more appropriate framework for measuring net domestic product for the forest sector.  相似文献   

11.
A solution is demonstrated to an infinite-horizon, discrete-time utility model describing the consumption and cutting behavior of a nonindustrial private landowner who is managing a multiple age-class forest and who values both consumption derived from harvesting the trees and amenity derived from the standing trees. A policy rule is derived to attain a normal forest from any initial age-class distribution. It is demonstrated that a noncyclical forest allowing a constant periodic harvest is typically not a normal forest. Therefore, an even-flow timber harvesting is not tied to the existence of a normal forest structure.  相似文献   

12.
This study evaluated the potential effectiveness of future carbon reserve scenarios, where U.S. forest landowners would hypothetically be paid to sequester carbon on their timberland and forego timber harvests for 100 years. Scenarios featured direct payments to landowners of $0 (baseline), $5, $10, or $15 per metric ton of additional forest carbon sequestered on the set aside lands, with maximum annual expenditures of $3 billion. Results indicated that from 1513 to 6837 Tg (Teragrams) of additional carbon (as carbon dioxide equivalent, CO2e) would be sequestered on U.S. timberlands relative to the baseline case over the next 50 years (30–137 Tg CO2e annually). These projected amounts of sequestered carbon on timberlands take into account projected increases in timber removal and forest carbon losses on other timberlands (carbon leakage effects). Net effectiveness of carbon reserve scenarios in terms of overall net gain in timberland carbon stocks from 2010 to 2060 ranged from 0.29 tCO2e net carbon increase for a payment of $5/tCO2e to the landowner (71% leakage), to 0.15 tCO2e net carbon increase for a payment of $15/tCO2e to the landowner (85% leakage). A policy or program to buy carbon credits from landowners would need to discount additions to the carbon reserve by the estimated amount of leakage. In the scenarios evaluated, the timber set-asides reduced timberland area available for harvest up to 35% and available timber inventory up to 55%, relative to the baseline scenario over the next 50 years, resulting in projected changes in timber prices, harvest levels, and forest product revenues for the forest products sector.  相似文献   

13.
The profitability of forestry depends on the future trend of timber prices. Three plausible price predictions placed the margin of profitability at three widely differing levels of physical productivity. A good estimate of the elevation at which marginal profitability could be expected under each price prediction was given by productivity/elevation regressions for existing plantations in each of three localities in North Wales. Cartographic sampling enabled the cumulative area of rough grazings below this elevation to be estimated. By combining empirical relationships between price trend, profitability, productivity, elevation and cumulative area, a heavy dependence of afforestable area on future price trend can be demonstrated for North Wales; similar results would be expected throughout Britain. Inclusion of land products other than timber complicates the exercise. The significance of price trend for many forestry decisions justifies much more research on price prediction.  相似文献   

14.
In this paper, we developed a mixed-integer non-linear programming model that integrates access road development and a utility theoretic spatial choice model of hunters into a strategic forest harvest-scheduling model. The model was applied to an operationally sized Forest Management Agreement (FMA) area in central Alberta, Canada. The resulting behavioral model had approximately 2.6 million decision variables and about 96,000 constraints, and was used to examine the impacts of timber harvesting on hunters’ preference for hunting sites. We also evaluated the impacts of various levels of hunter welfare on: (i) the degree of tradeoff between timber and hunting benefits, (ii) timber harvest schedules, and (iii) the marginal costs of producing timber products. The results showed significant tradeoffs between timber and hunting benefits and a clear link between landscape characteristics and changes and behavioral responses by hunters.  相似文献   

15.
Under the Clean Development Mechanism (CDM) of the Kyoto Protocol, forest projects can receive returns for carbon sequestration via two crediting instruments: temporary or long‐term certified emission reductions (tCERs or lCERs). This study shows the effect of lCERs on the private owner’s forest rotation intervals decision and carbon credit generation in afforestation and reforestation projects. A credit verification mechanism with a harvest penalty implemented under the lCERs policy distorts the timber harvesting decision and the corresponding carbon credit supply. Two opposing incentives are created by the lCERs mechanism which leads to either longer or shorter rotations compared to the Faustmann rotation, depending on which incentive prevails. Our numerical results show that both lCERs and tCERs seem to have similar impacts on harvesting incentives, but the resulting carbon supply differs among the instruments owing to the credit verification mechanism. The tCERs carbon supply curve is monotonically increasing in the carbon price, while a lCERs carbon supply is non‐monotonic and may have a backward bending region over a range of carbon prices.  相似文献   

16.
Various public financial assistance programs are available to nonindustrial private forest (NIPF) landowners in the United States. Many landowners have limited knowledge of these programs and have not utilized them. This study employed a two-step sample selection model to examine the determinants of NIPF landowner knowledge of three regeneration programs, and conditional on their knowledge, the determinants of the application frequency to these programs since 1996. Data were collected using a phone survey of NIPF landowners in Mississippi. The survey revealed that among these qualified landowners who had clearcut in the past 10 years, about 50% knew of one or more of the programs. Their application frequencies to individual programs ranged from 0 to 5. Landowner knowledge of the programs was positively related to land size, regeneration experience, gender, and membership in forestry associations. For landowners who knew of these programs, application frequencies were higher for those that had less acreage, had lower education or income, were fully employed, were female, or had no membership in forestry organizations.  相似文献   

17.
A vegetable producer often faces complex harvest decisions where yield increases through time and varies across crop area, price is determined in erratic seasonal markets, and harvest rate is constrained. In this paper, a simplified two-period potato harvest problem is developed to define a set of marginal conditions for an optimum. The model is then extended to the multi-period case and numerical solutions are generated for a representative farm in South Wales using dynamic programming. The model provides a general framework for analysing crop harvesting systems and prescribing marginal changes, such as adjustments in the harvest capacity, which improve profitability over myopic harvest patterns.  相似文献   

18.
Among the most complex decisions in forestry is the decision of when to harvest a stand. Many investment theories have been established and adjusted to maximize profit, yet limited knowledge is available regarding the predictive power of theories. Understanding foresters’ harvesting behavior, however, is important for forest management and policy support. Thus, the question arises as to what extent risky harvesting decisions comply with economic theories. Therefore, we conduct an incentive-based economic experiment with 107 forestry decision makers in order to analyze this research question. This approach is well-established in the field of behavioral economics since it has the advantage of analyzing certain economic parameters isolated from further aspects of the decision situation. We use the Faustmann–Pressler–Ohlin theorem and a real options approach as normative benchmarks. The present study provides evidence that none of the examined theories fully comply with the observed behavior. However, the harvesting behavior coincides significantly more with the real options theory than with the Faustmann–Pressler–Ohlin theorem. It can thus be stated that a higher degree of education leads to decisions that are more in accordance with the real options theory.  相似文献   

19.
This study aimed to explore how producers’ reference prices are formed and adapt over time, and how they affect marketing decisions. Results indicate that producers focus on three major variables to form their reference prices: the current market price, the highest price to date, and their expectation about price behavior. Further, they update their reference prices during the marketing season mainly in response to changes in current market prices, their own expectations about price behavior, and the general price trend. Finally, our findings suggest that producers’ marketing decisions are based on the spread between current market price and reference price, the general market trend and price expectation.  相似文献   

20.
Timber and lumber markets are linked and integrated through prices at several stages along timber supply chain. In this study, the degree of vertical integration and the presence of asymmetric price transmission are investigated for sawtimber and lumber products in the southern and western United States. The data utilized are quarterly stumpage price, delivered timber price, and lumber price of softwood between 1977 and 2011. Linear and threshold cointegration models are used for long-term price analyses, and symmetric and asymmetric error correction models are used for short-term price analyses. The integration in the early stage (i.e., stumpage/delivered timber price pair) is found to be stronger than that in the latter stage (i.e., delivered/lumber price pair). The South shows slightly stronger market cointegration than the West. Asymmetric price transmission is found along the timber supply chain. In the long term, prices are more responsive when the price margin is increased than decreased.  相似文献   

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