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1.
The nonindustrial private forest (NIPF) owner's consumption and harvesting decisions are investigated under inheritance and capital income taxes using a two-period model. The impact of the forest-owner's age is introduced into the analysis through a parameter of perceived probability of surviving through a future period. This allows us to study the impacts of ageing on consumption and harvesting decisions as well as to see how the impact of taxes changes among different age groups of forest-owners. The results show that current consumption first decreases and then increases when moving from younger to older individuals regardless of whether non-timber assets are more or less heavily taxed through bequests than consumption. In general, we find that tax effects are dependent on the forest-owner's age. Age tends to intensify the increasing effect of the forest bequest tax on harvesting. The same is true with respect to the decreasing effect on harvesting of the inheritance tax imposed on non-forest assets. Furthermore, the forest-owner's age tends to intensify the effect on harvesting of the capital income tax imposed on forest assets, but diminishes the effect on harvesting of the capital income tax imposed on non-forest assets.  相似文献   

2.
Recognizing the absence of up-to-date empirical data on the economic life, the annual use and the residual value of dedicated cut-to-length (CTL) harvesting machinery, the authors gathered a large database of second-hand machine sale offers containing over 1000 records, coming from Europe and North America. The statistical analysis of these data pointed at an economic life in the vicinity of 18,000 h for both harvesters and forwarders, which confirms previous assumptions. The average annual use for the machines in the database is 1424 and 1581 h year−1, respectively for the harvesters and the forwarders. Nordic users achieve a higher annual use than central European users, and the difference is statistically significant. Nevertheless, the average annual use recorded for both groups falls below the levels commonly adopted in current estimates, which may therefore represent ideal reference figures rather than actual averages. Residual value is strongly related to machine age, and the authors calculated some simple functions for estimating it. The study points at a better retention of the original value, compared to the figures reported in previous literature. At 5 years of age the harvesters and forwarders in the study keep respectively 38% and 44% of the new value. The information contained in the study is crucial to machine rate calculation, which has often been based on rule-of-thumb assumptions, in the absence of empirical data.  相似文献   

3.
The assessment of alternative forest management strategies should account not only for the private benefits to forest landowners but also for the ecological, environmental and economic benefits valued by society. There are a number of empirical valuation methods that may contribute to that assessment. These methods involve several steps: data acquisition, model specification and estimation. In this paper, this approach is illustrated in the context of a survey regarding alternative management strategies for a forest area in Central Portugal by implementing a contingent valuation experiment where an advanced landscape visualisation technique is employed to generate the visual information conveyed in the valuation scenarios. Several econometric model specifications are considered as well as alternative approaches to handle zero willingness to pay values and protest responses. The results obtained suggest the potential of the proposed approach for an effective comparison of alternative forest management strategies.  相似文献   

4.
This paper examines agrarian issues in civil wars in Côte d’Ivoire and Sierra Leone. Attention is paid to two different ways in which lineage society evolved during the colonial and post‐colonial periods. The motivations of fighters are related to these different trajectories of agrarian social change. In Côte d’Ivoire youth militia fought to uphold a lineage‐based social order, but in Sierra Leone a comparable group of young fighters sought to overturn it. Large migrant populations on a forest frontier are an important factor in Côte d’Ivoire, while in Sierra Leone significance attaches to an excluded agrarian underclass. Not all African conflicts are ethnic conflicts; autochthony is shown to be a factor in one conflict and class in the other. Approaches to post‐war reconstruction based on undifferentiated notions of community should be resisted.  相似文献   

5.
The Endangered Species Act (ESA) has been a source of litigation and subject to court interpretation during the past several decades. In this study, event analysis was employed to examine the impact of six court decisions related to the ESA on the financial performance of U.S. forest products firms. The finding of abnormal returns revealed that all six events generated the expected positive or negative returns, and among them, four were statistically significant. Changes in systematic risk reflected the reaction of the stock market to the verdict announcements. Programs designed for habitat conservation can be implemented to compensate private landowners or firms for costs associated with protecting species on private forestlands.  相似文献   

6.
Starting in the mid 2000s, a financial asset management company and institutional investors began to invest in timberlands in British Columbia, Canada's most western province. In a period of political economic crisis, investors looked to real assets—“dirt and trees” in the words of one research participant—as a means of accumulating capital through securing access to huge parcels of the most productive and valuable forestland in North America. This article analyses these investments as a socioecological fix for finance capital suggesting that investments in land represent a means for capital and the state to negotiate moments of crisis. The article complicates existing accounts of fixes by demonstrating how the survival of capital in a settler context is fully dependent on an ongoing settler‐colonial project of separating Indigenous people from their land base. The article focuses on the explicitly “private” nature of the land under examination and how this is central to the strategies of investors, the state's deregulation of forest policies, and the marginalization of First Nations' claims to land. The article demonstrates that in settler contexts, discussions of fixes need to be much more attentive to the historic and enduring colonial threads woven through investments in land.  相似文献   

7.
The question of under what settings locally managed forests will lead to successful conservation without frustrating the local people’s subsistence outcomes remains contested. This research investigates the relationship between attributes of locally managed forest SES and its forest and livelihood outcomes using data from 83 forest SESs across seven countries. The data were obtained from the International Forestry Resources and Institutions (IFRI) database. Thirteen predicators that were selected from the attributes of forest, user group and governance of the local forest SES were used to evaluate their influence on SES sustainability. Our results showed that sustainable forest SES was significantly associated with forest size, diversity of the NTFP that is extracted from the forest, networks among the forest users, rule making by external non-forest harvest organizations in dispute resolution, and benefits sharing. On the other hand, the distance of forest users’ settlements in the forest, rule making for forest protection and harvest quantity as well as sanctions by external non-forest harvest organizations were found to be significantly associated with unsustainable forest SESs. Our findings have important implications for the ongoing discourse on how to promote sustainable forest management at local level. The results on the success factors can assist decision makers to improve the chances for the success of forest governance that rely on local people who depend upon forests.  相似文献   

8.
The multiple effects of carbon values on optimal rotation   总被引:2,自引:0,他引:2  
Non-consumptive benefits which increase with crop age, like keeping carbon sequestered, lengthen optimal rotation compared with rotation for timber alone. High proposed carbon prices may extend rotation indefinitely. Carbon storage in wood products reduces this tendency. Biomass as an energy source displacing fossil fuels favours rotations near those of maximum biomass productivity. Use of sawn timber to displace structural materials with high embodied carbon favours somewhat longer rotations. Effects of rotation on soil carbon, and fossil carbon volatilised in harvesting operations, are further complications. Including all carbon effects results in optimal rotations somewhat longer than those based only on timber value, but shorter than those based on timber plus forest carbon. To include all factors intuitively is not possible: balanced appraisal needs economic calculations.  相似文献   

9.
Provisioning Ecosystem Services (PS) from the forests contribute much to peoples’ livelihoods as well as to the national economy. Previous studies have been constrained by their primary focus on biophysical quantification of PS through modelling and mapping or aggregated monetary valuation, while little attention has been paid to the issues of the distribution of financial benefits among the different forest subgroups. Using market price and substitute good price methods, this paper assesses how local users exploit financial benefits and emit carbon from the use of PS in two dominant community-based forest management systems (community forestry—CF and collaborative forestry—CFM) based on proximity (nearby vs. distant users) and socio-economic class (rich vs. poor users) in the Siwalik region, Nepal. Results indicated that the wealth level of the users plays a key role in the amount of financial benefits generated from the use of PS: (1) users living near forests receive the highest economic benefits compared to those living long distances from the forest area. However the distribution of benefits differs according to management modality and socioeconomic status; (2) CF users, on average, receive higher economic benefits than CFM users; and (3) compared to poor households, rich households receive higher benefits. On average, a rich household adjacent to CF receives USD 1214/year while a poor household living in the same area receives almost half of that (USD 630/year). Similarly, a poor household living far from a forest area generates USD 189/year, slightly higher than that of a rich household in the same area (USD 109/year); and (4) an average CF user emits more carbon (7.4 tCO2/HH/year) from the consumption of PS than an average CFM user (5 tCO2/HH/year). Finally, we discuss the reasons behind these differences and draw policy implications for developing and refining constitutions and operational plans of forest user groups.  相似文献   

10.
Concern about the environment in colonial northern Nigeria developed out of a series of controversies and practices, particularly those relating to agriculture. Increasingly, local practices that have sustained the population and the environment for centuries are subjected to “scientific” scrutiny. Though many of these practices were either misunderstood or not understood at all, this did not stop the subjugation of local practices to “science”. However, this “scientific” enterprise was often conflict-ridden, with important questions being resolved only after the intervention of political authorities. The resulting colonial practices in the fields of irrigation, forest management and the application of chemical fertilizer continue to dominate the thinking of state officials in post-colonial Nigeria, leading to unsustainable policies. An earlier colonial tradition of investigating the practices of local farmers and the constraints therein would have been a more appropriate basis for post-colonial policy.  相似文献   

11.
High altitude spruce fir forests are typical around the world and are often subjected to multiple forms of recreational use. In this paper, we use household and recreation group data for a spruce fir forest high in the Appalachian Mountains of the U. S. to evaluate the benefits from forest protection (i. e., from improving the forest condition). Our benefits estimation procedures use the referendum-type, contingent valuation (CV) approach of Cameron (1988). We modify the usual practice of obtaining a single willingness-to-pay (WTP) value by using alternative questionnaire scenarios and conducting tests to examine i) household and recreation group value sensitivity to forest condition, and ii) recreation group differences in WTP for forest protection. A first sample of southeastern U. S. households was asked to value a forest protection program for a spruce-fir forest showing no impact from insect disturbance or atmospheric deposition. The second sample was asked to value a protection program for a forest already experiencing impact from insect infestation and air pollution. Logit analysis of the two samples revealed no statistically significant difference in household WTP between the two forest protection programs. Further analysis indicated that consumptive forest users (i. e., hunters and anglers) held forest protection values that were sensitive to a change forest condition, while nonconsumptive forest users (i. e., campers and hikers) held values that were insensitive to the same condition change. Recreation group comparisons revealed that consumptive forest users also held lower values for forest protection than nonconsumptive recreationists. These results demonstrate the importance of estimating public values for forest protection in terms of heterogeneous groups rather than as a homogeneous whole.  相似文献   

12.
This paper analyses the historical trajectories of both British colonial rule and independent India to categorise scheduled tribes and to appropriate and legalise forests in tribal areas. It builds upon Foucault's notion of governmentality to argue that the history of the scheduled tribes’ subject-making and the related history of forest demarcation is indispensable for understanding the current politics of decentralised forest management in India. Three dimensions of ‘forest governmentality’ - the history of categorisation, the politics of social identity, and the technologies of forest governance - are discussed to show how recent efforts to politicise forest tenure rights have reinforced political control over the scheduled tribes through new forms of authority, inclusion and exclusion. However, to claim their individual and community right to forestland and resources, the scheduled tribes have internalised their ‘new’ ethnic identity, thereby creating countervailing power and room to manoeuvre within the current forest governance regime. This is supported by a case study of the Bhil, a predominantly forest-dependent scheduled tribe in the semi-arid region of western India.  相似文献   

13.
The main forest transitions that took place in south-central Chile from the end of the last glaciation to the present are reviewed here with the aim of identifying the main climatic and socio-economic drivers of land cover change. The first great transition, driven primarily by global warming, is the postglacial expansion of forests, with human populations from about 15,000 cal. yr. BP, restricted to coastlines and river basins and localized impact of forest fire. Charcoal evidence of fire increased in south-central Chile and in global records from about 12,000 to 6000 cal. yr. BP, which could be attributed at least partly to people. The subsequent expansion of agriculture led to much clearing of forests and the spread of weeds and other indicators of open habitats. The Spanish colonial period in America may have been followed by a transient expansion of forest cover into abandoned land, as indigenous population declined rapidly due to disease and slaughter. The 18th and 19th centuries brought about extensive loss of forests due to the massive impact of lumber extraction for mining operations both in central Chile and in western North America. Two centuries of intensive deforestation, coupled to grazing by cattle and extremely variable rainfall had long-lasting effects on forest cover in south-central Chile, which persist until today. The transition from a preindustrial to an industrial society brought about the “golden age” of timber harvest, assisted by mobile sawmills and railway transportation since the late 1800s. These advances led to the exhaustion of native commercial timber by the late 20th century in south-central Chile. In North America, harvestable stands were exhausted in New England and the Midwest around 1920. Settlement of the independent territories in the late 1800s and early 1900s implied vast burning and clearing of land and mounting soil erosion. Industrial forestry, based on government-subsidized massive plantations of short-rotation exotic trees, developed in the late 20th century, in connection with postindustrial displacement of exploitative activities from developed to third-world nations. In the last two decades, economic globalization and free trade promoted the expansion of new crops and further decline of woodlands, despite modest increases in forest cover. These patterns are repeated in many Latin American countries. To prevent further depletion of native forest resources and to provide an insurance against climate change, in the 21st century developing nations should aim at: (1) relocating subsidies from fiber farms to restoring diverse forest cover, (2) promoting ecosystem management of diverse forest and crops within landscapes, and (3) fostering diverse cultural relationships between people and their land.  相似文献   

14.
以中国知识基础设施工程(CNKI)数据库为数据源,通过Note Express软件,分别从文献发表时间及数量、文献类型、研究人员、研究机构、刊登期刊以及关键词6个方面对我国森林公园文化建设领域的相关文献进行统计。结果表明:(1)2013年以后,我国森林公园文化建设研究进入快速发展时期,但2018年研究成果较少;(2)规划院和高校是森林公园文化建设的主要研究机构,林业类期刊对森林公园文化建设研究关注度最高,但森林公园文化建设研究亟需与其他学科融合;(3)生态文化、森林文化、地域文化是森林公园文化建设的研究热点,研究方向比较陈旧。针对以上研究结果,提出了强化研究;加强交流、兼收并蓄和结合时代推进创新的建议。  相似文献   

15.
The extension of rotation lengths in forests has been proposed as an option for increasing carbon storage and contributing to climate change mitigation. This paper presents the results of a case study conducted on forests located in the southwest of France. The aim of this research was to assess the cost effectiveness of a subsidy/tax system on carbon fluxes. First, it is shown that such a mechanism leads forest owners to extend rotation lengths. However, cost effectiveness analysis shows that: (1) marginal social costs are more expensive than the private marginal costs of carbon sequestration; (2) marginal costs are higher when carbon stocks are discounted, ranging from 170.1 €/tC to 719.8 €/tC with discounted carbon stocks; and from 38.8 €/tC to 78.4 €/tC with undiscounted carbon stocks; (3) marginal costs are in the range of measures of the social value of carbon for France; (4) marginal costs increase with timber prices and increase with discount rate.  相似文献   

16.
以江西省境内的森林公园旅游经营收入为研究对象,运用灰色关联分析理论,系统分析了2004年~2014年江西省森林公园旅游经营收入结构特征及其动态变化,得到了有意义的结果:江西省森林公园旅游收入中,食宿收入的平均关联度最大(r=0.841 8),与旅游相关的其他收入的平均关联度最小(r=0.688 9)。门票收入的关联度呈现出先调整性增长,后较稳定下调,而后持续增加的趋势;食宿收入的关联度一直稳定下调,而后又报复性增长;娱乐收入的关联度在调整中呈现出平稳的下降趋势;而与旅游相关的其他收入在调整中呈现出不断增长的态势。基于灰色动态关联分析,提出了增加旅游服务范围、调整旅游门票价格、丰富娱乐活动特色、重视林下经济发展等建议。  相似文献   

17.
[目的]随着经济社会的高速发展,土壤污染、大气污染、水污染等问题开始严重威胁着人类的生存活动。森林作为陆地生态系统中物质交换和能量流动的主体部分,森林生态系统的健康和安全就成为人类生存发展的重要保障,也是国家生态安全的重要指标之一,系统地评价森林生态安全是提升生态文明建设的有效途径。[方法]基于Pressure-State-Response (PSR)模型建立中部地区森林生态安全评价体系,选择熵权法对各指标进行权重分配,采用模糊物元模型对中部地区2005年、2010年、2015年森林生态安全进行动态评价。[结果]评价期内该地区森林生态安全水平总体上呈现良好状况且提升稳健,但区域发展不均衡,北部省份(山西、河南)森林生态安全状况较佳,中部省份(湖北、安徽)森林生态安全状态良好,南部省份(湖南、江西)森林生态安全状态有待提升。[结论]评价期内森林生态安全状态提升较为缓慢,且省份间存在较大差别;河南、湖北、安徽3省承受了较大的森林生态安全压力;单位GDP工业污染治理投资额普遍偏低,成为阻碍地区森林生态安全响应的主要因素。中部6省森林生态安全提升重点应在于减轻人类活动对森林环境的负面干扰,增强森林的营造、管护力度。  相似文献   

18.
Most industrial countries have experienced a transformation of land use: from decreasing to expanding forest areas, the so-called forest transition. Outside closed forests, European rural landscapes exhibit a diversity of tree-based agricultural systems, but the question of whether this forest transition has also affected ‘trees outside forests’ has rarely been studied. The aim of this study is to analyze the spatial-temporal dynamics of farm trees and woodlands in an agricultural landscape in Eastern Germany from 1964 to 2008, based on aerial photographs and digital orthophotos. Taking a landscape ecological perspective, we quantify farm tree dynamics, disentangle processes of gain and loss in the socialist and post-socialist periods of Eastern Germany, and assess differences in ecosystem services provided by farm trees. A substantial increase of overall tree cover by 24.8% was observed for the selected time period, but trajectories have been disparate across different farm tree classes. The increase in tree cover was stronger in steep valleys than on hills and plateaus, indicating a significant interdependence between topography and trajectories of change. Patch numbers of farm trees did not increase, which suggests that the expansion of tree cover is mostly due to a spatial expansion of previously existing tree patches. Overall net gains in tree cover were rather similar during the socialist and post-socialist eras. The general increase in tree cover was accompanied by increase in agriculture-related ecosystem service provision, but the increase in pollination and pest control services was much lower than that in water purification services. These findings present the first empirical evidence from an industrialized country that there is also an ongoing ‘forest transition’ outside closed forests. Potential, partially counteracting drivers of change during the socialist and post-socialist periods have mainly been related to farm policies and the environmental consciousness of land users and society as a whole.  相似文献   

19.
游客环境行为对森林公园生态环境的影响日益凸显,一方面通过大熊山国家森林公园的实证分析,以问卷调查方式实地调研了该森林公园游客环境行为及其管理的现状,运用SPSS软件的相关性分析发现游客不良环境行为发生的频度和公园游客管理现状存在显著相关性;另一方面结合"刺激-反应"原理以及"破窗效应"的理论研究,尝试性的构建了森林公园游客环境行为管理模型,并以此为框架提出了大熊山国家森林公园游客环境行为管理的优化建议,如管理资源层面的突破,管理原则层面的提升等,以期为改进森林公园游客环境行为管理实践提供借鉴参考。  相似文献   

20.
The purpose has been to determine to what extent differences in net trade and revealed comparative advantage between EU member states could be explained by differences in forest endowments, domestic demand, energy policies and other country specific characteristics. An adopted model of the Heckscher–Ohlin theory, suggesting a direct relationship between a country's trade, forest endowments and income (HOV model), has been empirically estimated for three forest products (roundwood, chips & particles and wood fuel), 19 European countries and for the period 1994–2006. Both net export and an index of revealed comparative advantages was constructed and used as dependent variables. Moreover, different model specification was estimated using different measures of forest endowments. The results suggest that forest endowments are an important determinant for explaining differences in net trade of the included forest commodities. However, domestic demand, measured by income level, is not. Thus, the results provide mixed support for the HOV model.  相似文献   

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