首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 31 毫秒
1.
The Khasia ethnic community of Bangladesh has been a population of forest villagers in the north-eastern hill forests of Bangladesh since the early 1950s, practicing a betel leaf-based agroforestry system on land granted by the Forest Department. Taking a sample forest village of the Sylhet forest division as a case study, this article examines the sustainability attributes of betel leaf production in the agroforestry system. The presence of several positive attributes of sustainability including the composition of agroforestry, disease control, soil fertility management, profitability, socio-cultural acceptability and institutional support indicate that betel leaf production within the agroforestry system is stable under the prevailing traditional management system. Income from the sale of betel leaf is the principal livelihood means and villager’s reciprocal contributions help to conserve forest resources. However, problems with land ownership and regular agreement renewal need to be resolved for the sake of their livelihoods and forest conservation.
Tapan Kumar NathEmail:
  相似文献   

2.
A study was conducted in Kullu district in the province of Himachal Pradesh in Indian Western Himalaya, to investigate the perceptions of Indian foresters about aspects of forest management relevant for effective Joint Forest Management (JFM). A lack of uniform understanding was found amongst forestry staff about almost all the studied issues pertaining to JFM. A need is identified to emphasise social aspects in the training of the foresters (including in-service training), along with the existing silvi-technical aspects. For JFM success, measures need to be devised to reduce the political interference in JFM, reduce hierarchical rigidity, and increase interaction between field staff and the administrative hierarchy. Strategies should be devised to make JFM participants as well as forestry staff equally responsible to honour their commitments with respect to JFM.
Kamal Kishor SoodEmail:
  相似文献   

3.
This paper describes a conceptual framework that was developed to integrate livestock, human, cultivation and forest constraints to model community fuelwood consumption over a 25-year planning horizon. This framework was constructed as an energy balance based on human caloric requirements in order to examine the effects of household-level decisions for nutrition, fuelwood and land use. A scenario from a virtual community in Uganda is presented to illustrate the utility of this model to allow rapid policy and scenario evaluation. User-defined inputs combined with published research data are used in simulating resource responses and energy consumption rates. This model is a potential tool to monitor fuelwood consumption and to understand the implications of various land-use practices.
Joel HartterEmail:
  相似文献   

4.
A new forest policy of allocating forestland to individual households for management and development, has been applied in Vietnam since the early 1990s. This study was designed to examine how local forest-related people have used forestland and forest resources under the new policy, and to determine their level of dependency on forests. An upland forest-related community in northern central Vietnam, where the policy was introduced in 2002, was chosen as a case study. It was found that local residents in the community have not complied with the forest allocation policy well, in that they violated the policy to freely lend forestland to and borrow from villagers for cropping purposes, regardless of whether they were rich or poor, had enough land or not, or were legally forest recipients. Regarding forest dependency, all households studied lived on forest resources (forestland and forest products). More than 65% of the total annual income of poorer households was derived from the forest, compared to less than 40% for the richer households. Forest-derived income accounted for more than 75% in their total income in some of the poorest households.
Nguyen Vinh QuangEmail:
  相似文献   

5.
The state-level distribution of the size of family forest holdings in the contiguous United States was examined using data collected by the USDA Forest Service in 1993 and 2003. Regressions models were used to analyze the factors influencing the mean size and structural variation among states and between the two periods. Population density, percent of the population at least 65 years of age, percent of the population residing in urban areas, per capita income, income inequality, and per capita private forestland were found to be significantly correlated with the structure of landholding size. This paper suggests that the number and proportion of small-scale family forest owners in the United States are both increasing due to the increasing importance of non-timber amenities to forest landowners.
Y. ZhangEmail:
  相似文献   

6.
This article studies the possibility of using auctions as a policy instrument in conservation programs. In particular, it provides insight into the main concerns that need to be dealt with when implementing conservation auctions. To show the cost saving potential of this policy instrument, we also calculate the social welfare improvement that can be obtained for an afforestation project in Flanders. When developing conservation policies, it is thus worthwhile to consider auctions as an alternative policy instrument.
Sandra RousseauEmail:
  相似文献   

7.
Parcelization and shifting landownership are critical forces reshaping forested ecosystems in the USA and elsewhere. These forces create a mosaic of new and long-time landowners as well as differences in residency. Using survey data (n = 879) of landowners in Massachusetts and Vermont, USA, we begin the process of sorting out time (i.e., length of landownership) and distance (i.e., distance of primary residence from forest holding), and their relationships to motivations for continued landownership and management. Both time and distance, and their interaction were significant in explaining three motivations for landownership: enjoyment, production, and protection as well as the number of neighbors with which respondents were acquainted. Distance is the statistically more important factor—negatively related to all dependent variables, but time and its interaction with distance offer the more useful insights for intervention.
David B. KittredgeEmail:
  相似文献   

8.
The paper examines the interactions between the demands of society, the restrictions due to recreational and protective functions of forests and the intensity and kind of forest management in the various ownership classes in Switzerland (CH) and Baden–Württemberg (BW) in south–west Germany. A survey was carried out among owners of communal forests, private forest landholders owning more than 200 ha of forest land and small-scale forest enterprises with up to 200 ha of forest land. The survey adopted a two-dimensional approach, using regions and comparable ownership classes in order to identify basic differences and underlying key drivers. It became obvious that there are relevant distinctions between the two countries. The paper highlights the present use of forests, the restrictions perceived by their owners, and the underlying management strategies in terms of structure of the forests, tree species composition and thinning activities. In BW the financial function is the dominant motivation for the majority of the private owners. The communities emphasize both timber and non-timber functions of their forests. Except for the protection function (avalanches, rockslides) the utilisation and importance of the forest in CH is lower than in BW. Profitability of forests continues to be a key-driver of intensity of forest management activities, but there is less influence on the choice of basic silvicultural strategies. The results of this comparative survey are placed in the context of a forest policy framework and the medium-term financial situation in the two countries.
Christoph HartebrodtEmail:
  相似文献   

9.
Since the early 1980s, Myanmar Forest Department has been recruiting shifting cultivators, establishing plantation villages and applying the taungya method in establishing teak plantations. From the beginning, there has been an argument about whether the program is creating ‘forest protective groups’ or ‘forest destructive groups’. A key determinant to that question from the research viewpoint is the socio-economic situation; knowing the present situation of the plantation villagers can help to understand their forest management practices. Interview surveys were carried out in three villages in Bago Yoma, the main region of the special teak plantation program, to examine the current economic benefits to plantation villagers. Questions were designed mainly to explore the incentives for people participation and the socio-economic situations of the plantation villagers. Principal component analysis was used to group landholder types. It was found that local people are willing to participate in the initial establishment of plantations. However, all the incentives relating to plantation projects are temporary, with no long-term consideration for taungya farmers, which jeopardizes the plan to create forest protective groups. It is concluded that the time has come for the Myanmar Forest Department to change its main aim of earning foreign exchange from establishment of teak plantations through the taungya method to redressing deforestation through people participation based on rural socio-economic development.
Tin Min MaungEmail:
  相似文献   

10.
In light of the increasing realisation of the importance of all forest resources, the dichotomisation of forest resources into timber and non-timber is proving to be overly simplistic. Furthermore, at present there is no satisfactory operational definition for non-wood forest products and considering the tremendous variety of forest products it may be doubted that such a definition is possible. This paper examines this inadequacy and its consequences for a productive, holistic approach to the analysis of forest resources and their management. In an attempt to address these problems, a system for dealing with forest resources in a more meaningful, holistic manner is proposed. A clear distinction is made between systems of terms for classification, and terms used for comparison, of forest products. Classifying terms distinguish between classes or groups of objects with similar characteristics while comparative terms serve to highlight differences. Definitions are best served by classifying terms and this paper proposes both logical targets for definitions of forest products and a pragmatic typology for such products.
Udo MantauEmail:
  相似文献   

11.
The role of European forests and forest management in the carbon balance has received much attention in research recently. This was particularly motivated by the recognition of forest management as one possible measure countries may adopt in the framework of the Kyoto Protocol to reduce the concentration of greenhouse gases in the earth’s atmosphere. The main method to assess carbon budget in forests is based on traditional forest inventories. This method requires the conversion of measured stem volume to carbon pools. This conversion has been identified as a large source of uncertainty in past assessments. Over the last 5 years, intensive research efforts have resulted in significant advances in the reliability of forest inventory based carbon budgets. In parallel, the impact of forest management on the carbon balance of forest ecosystems has been investigated and the carbon mitigation potential of these activities has been analysed. This paper reviews the progress that was made in these two fields of research with a particular focus on European forests.
Marcus LindnerEmail:
  相似文献   

12.
The domestication of non-timber forest species (NTFS) is receiving increasing attention from developing economies. However, little is known about the selection of NTFS in Nepal for commercial uses. Sixteen selection criteria were developed and NTFS were ranked for community and private plantations in both low altitude and high altitude areas of Makawanpur district, Nepal, by workshops of multiple NTFS stakeholders. The rigorous scoring of 12 ecologically screened NTFS against the 16 selection criteria revealed that kurilo and sarpagandh are highly preferred NTFS for low altitude areas whereas chiraito and jatamanshi are highly preferred for high altitude. This finding coincides with the general perception of participants and contemporary literature. These are the species being rapidly depleted from the natural forests. Rapid decline of valuable species creates strong motivation from stakeholders for planting them on community and private land.
Tek N. MaraseniEmail:
  相似文献   

13.
The assessment of a forest resource in national inventories provides a firm basis for the calculation of biomass and carbon (C) stocks of forests. Biomass expansion factors (BEFs) and conversion factors provide a robust and simple method of converting from forest tree stem volume to total forest biomass. These factors should be constructed on the basis of nationally specific data in order to take account of regional differences in growth rates, management practices, etc. The objective of this study is to improve the accuracy of biomass estimation by calculating a range of age-dependant BEFs from representative data that more accurately describe the allometry of present forests. The results from this study show that the allocation of biomass to compartments in forest stands and throughout a rotation varies considerably, and that the use of BEFs for the calculation of C stocks in forests of sub-timber dimensions is highly impractical.
Brian TobinEmail:
  相似文献   

14.
This research utilises a contingent behaviour valuation technique to value a number of improvements to recreational facilities in small-scale forests in Ireland. Willingness-to-pay estimates have previously been made for Coillte (Ireland’s state-owned forestry company) trails and forests. The total non-market value of Irish forests has also been examined. This paper adds to the literature by being the first to estimate the consumer surplus associated with recreational enhancements to Irish small-scale forest resources. The results presented indicate that community owned small-scale forestry can contribute enormously to the wellbeing of nearby urban residents, through the provision of outdoor recreational services.
Stephen HynesEmail:
  相似文献   

15.
Forests in north-eastern New South Wales have often been the focus of controversy. The tension between production and preservation continues and hampers current negotiations for a code of practice for private native forestry. The structure of many private forests reflects past mismanagement, and silvicultural intervention would benefit both conservation and production objectives, but such intervention is rarely financially viable. This paper sets out the economic and ecological basis for private native forestry. Both the timber industry and nature-based tourism are major contributors to the local economy, and both rely in part on private native forests. Draft regulations currently under negotiation do not offer incentives for improved private forest management.
V. Alex JayEmail:
  相似文献   

16.
Small and medium enterprises are a key driver of current double-digit industrial growth of India; however, the shrinking domestic log supply has created a unique market opportunity for global forest-based industries. This paper examines the major obstacles to investment in forests at the national and individual firm level and also the policy steps needed to overcome these obstacles. Forest-based small-scale enterprises cite finance as their principal constraint in maintaining their competitive position and developing their activities, with shortages of raw material often taking second place. India has extensive tracts of land suitable and available for forestry; afforestation, although economically viable, requires massive initial investment by both the government and private sectors. India is promoting public–private partnerships in order to increase forest cover to ensure entitlement for the investor over forest produce, along with necessary safeguards for protection of and compensation for the rights of village dwellers and communities, besides providing them additional benefits and livelihood. Governments need to tackle corruption and other forms of rent-seeking, in order to build credibility with firms, foster public trust and legitimacy and ensure their policy interventions are crafted to fit local conditions. Competition requires the Indian forest products industry to accomplish a strong improvement in its economic and technological capabilities. The challenge for forest policy-makers in India is to find the right mix of policies and incentives to attract private investment.
Parag DubeyEmail:
  相似文献   

17.
Research into the effects of seven management techniques on survival and growth of eucalypt seedlings planted on farmland is reviewed. The techniques include: pre- and post-planting weed control; soil cultivation; fertiliser; mulch; tree guards/shelters; and irrigation. The initial and ongoing effects of each technique are discussed—including the effects of timing, type and quantity. Consideration is given to site, species and climatic influences. A statistical analysis of the published survival rates is then presented, to provide information on the relative importance of, and interactions between, practices. The analysis shows that maximum survival may be achieved by using one or two management techniques. Combining this result with the insights gained from the review suggests that the use of soil cultivation and post-planting weed control are likely to achieve the greatest improvements in early eucalypt survival and growth.
Sonia GrahamEmail:
  相似文献   

18.
Changes in small-scale forest governance as a reaction to global changes are viewed from the system dynamics perspective, focused on two levels of dynamic systems: the policy system with sets of interactions at the national level and the management system at the local level. These interactions are considered through permanent adaptation and re-shaping of stakeholders’ networks and positions provoking further changes in the systems. Empirical evidence has been obtained from two case studies related to small-scale rural forestry in distinct contexts—France (the Territorial Forestry Charters) and Kyrgyzstan (collaborative forest management and leasing of forest plots)—and viewed through a theoretical framework of social-political systems dynamics. The changes caused by the systems’ capacity for adaptability and resilience are expressed through a double spiral of decision-making, characterising the interactions between national policies and local management practices. The analysis leads to a conclusion that changes are basically determined by the formal and informal stakeholders’ strategies developed in a specific context and their mutual adaptation aimed at system resilience.
Irina Kouplevatskaya-ButtoudEmail:
  相似文献   

19.
Indirect methods of large-scale forest biomass estimation   总被引:11,自引:2,他引:9  
Forest biomass and its change over time have been measured at both local and large scales, an example for the latter being forest greenhouse gas inventories. Currently used methodologies to obtain stock change estimates for large forest areas are mostly based on forest inventory information as well as various factors, referred to as biomass factors, or biomass equations, which transform diameter, height or volume data into biomass estimates. However, while forest inventories usually apply statistically sound sampling and can provide representative estimates for large forest areas, the biomass factors or equations used are, in most cases, not representative, because they are based on local studies. Moreover, their application is controversial due to the inconsistent or inappropriate use of definitions involved. There is no standardized terminology of the various factors, and the use of terms and definitions is often confusing. The present contribution aims at systematically summarizing the main types of biomass factors (BF) and biomass equations (BE) and providing guidance on how to proceed when selecting, developing and applying proper factors or equations to be used in forest biomass estimation. The contribution builds on the guidance given by the IPCC (Good practice guidance for land use, land-use change and forestry, 2003) and suggests that proper application and reporting of biomass factors and equations and transparent and consistent reporting of forest carbon inventories are needed in both scientific literature and the greenhouse gas inventory reports of countries.
Z. SomogyiEmail:
  相似文献   

20.
Commercial afforestation of agricultural land is often associated with social conflict over the perceived environmental, economic and social impacts of the plantations being established. One of the most common solutions suggested to this conflict is a shift from large-scale afforestation by companies and government agencies to small-scale afforestation by individual landholders. Small-scale afforestation by farmers is argued by many to have more positive and fewer negative impacts than large-scale afforestation by non-farmers. However, few studies have examined whether small-scale afforestation is associated with less social conflict than large-scale afforestation. This paper reports results of a recent study that compared afforestation conflicts in two regions: County Leitrim in the Republic of Ireland and the Great Southern region of Western Australia. Considerable afforestation has occurred in both regions in recent decades, and both have also experienced major shifts in the scale and ownership of the plantations being established over time. For both regions, establishment of small-scale farm forest plantations was found to be associated with considerably less social conflict than establishment of large-scale plantations by non-farmers. Some tentative explanations may be given for this pattern, based on comparisons between the two case study regions.
Jacki SchirmerEmail:
  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号