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1.
Particularly in developing countries, forests provide feed for livestock in the form of fodder for stall-feeding and grazing in forest areas. Extraction of fodder resources from forests often leads to forest degradation. An attempt has been made to qualify extend of biomass extraction from forests and to compare forest fodder dependence of households in a number of forest density classes in the mountainous region of Himalayas, in Uttarakhand state in India, according to livestock owners’ perspectives. Information was obtained from a survey of livestock feed and fodder collection and utilization from 316 randomly selected households distributed across four government-defined forest density classes, namely very dense forest, moderately dense forest, open forest and scrub. Households obtained feed and fodder for livestock from three sources, i.e. forest areas, non-forest areas and local markets. Daily feed consumption per adult cattle unit varied according to source, ranging from 9.85 to 14.70 kg from forest areas, 7.40 to 11.14 kg from non-forest areas, and less than 1 kg from local markets. The dependency of households on fodder for livestock differed significantly between households located in each forest density classes. The current forest fodder extraction rate is likely to be unsustainable. Measures identified to reduce the extraction rate include greater use of alternative fodder sources and managing small patches of the natural forests adjoining dependent villages for fodder production through community participation.  相似文献   

2.
Biomass plays a vital role in the energy supply of many developing countries. It is the major energy source for the rural population of Nepal, where 70 % of the total energy is derived from woody plant biomass in the form of fuelwood. The main aim of this study is to describe the fuelwood consumption pattern and the role of community forests and trees on private farmland in biomass supply to rural households in Nepal. The study investigates whether demography and socioeconomic attributes of households affect fuelwood consumption. A household survey was conducted, along with measurements of fuelwood mass for six community forest user groups in Dolakha district of Nepal. Average daily household fuelwood consumption was estimated to be 8.4 kg, giving a mean annual consumption of 3060 kg per household. Per capita fuelwood consumption per day was found to be 1.7 kg. Total fuelwood consumption of households is significantly correlated with household size, ownership of cultivated irrigated terraces and number of livestock per household, and negatively significantly correlated with ownership of cultivated rain-fed terraces. Fuelwood consumption varies significantly between seasons. Among various sources of biomass energy, fuelwood from community forests contributes 23 % and trees on private farmland contribute 12 %. The rest is provided from other biomass sources, including the remains of fodder collected from private farmland vegetation, wood previously used for fences and trellises in private farmland, crop residues, and purchased fuelwood.  相似文献   

3.
The purpose of natural fallow in bush-fallow cultivaton systems is to improve soil fertility following a phase of cultivation and to provide useful forest products, including livestock feed. When natural fallow fails to serve these purposes, it can be supplemented or replaced by planted trees. This paper describes the development and function ofAcacia fallow in the Soli tribal land of central Zambia and examines the supplementary role of planted trees.The 31 woody species at five fallow sample sites were dominated byAcacia polyacantha. Thirty-nine percent of the species are leguminous and N-fixing while 42% are fodder plants. These species make thisAcacia fallow suitable for regeneration of soil fertility and production of fodder. The dominant species,A. polyacantha, has an extensive lateral root system and may attain a mean maximum girth at breast height (BH) of 125 cm within 20 years. In the study areaAcacia fallow regenerates from seed and root-stocks and with a maximum annual stem basal area increment of 0.87 m2ha–1 at BH can acumulate a total of 17.4 m2ha–1 in 20 years.However,Acacia fallow is poor in edible wild fruits and durable construction wood. The scarcity of fruits in the study area has been compensated by widespread planting of exotic fruit trees. Ninety percent of households have fruit trees (mean 2.3 fruit species per household). However, in spite of the scarcity of good construction wood in the Soli tribal land, no local initiative has developed to plant timber trees. A clear opportunity therefore exists to promote timber tree planting. Such a tree planting programme was started in the study area during the 1985/86 planting season (December-February) when 25,100 seedlings ofEcualyptus grandis, Gmelina arborea andLeuceana leucocephala were distributed, free of charge and the programme will continue until 1988. A survey carried out five to seven months after planting revealed that the survival ofE. grandis, L. leucocephala andG. arborea seedlings was 65%, 90% and 92%, respectively. The high mortality ofE. grandis seedlings was due to termite damage.  相似文献   

4.
One of the features of the forest dwellers in the Zagros region of Iran is their dependence on non-timber forest products (NTFPs). These products can play an important role in the livelihood of households located in the forest. The present study aims to determine the most important sources of forest dwellers’ incomes in the northern Zagros in terms of three income groups (lower, middle, and higher), to assess how changes in income are related to types of NTFPs harvested, and to investigate the most significant socio-economic factors determining absolute and relative household revenue from NTFPs. Income in higher- and middle-income groups come predominantly from border trade between Iran and Iraq, comprising 50 and 44 % of relative income, respectively. The main source of income for the lower-income group is remittance and government interest (such as cash subsidies), comprising 31 % of total household annual income. The relative income from NTFPs depends on the income group, varying between 10 and 21 %. Relative income from NTFPs (such as oak acorns, firewood, Gazoo, and Mazooj) for lower-income households is significantly higher than in middle- and higher-income households (p < 0.05). Feed used for grazing livestock in the forest is the most important type of NTFPs in this area, and its benefit in the higher-income group is significantly higher than that for groups with middle and lower income. A similar result is achieved for tree fodder. Relative income from the NTFPs is positively related to number of household members and negatively related to the average education of adult members of the household, the relative income from border trade, and the relative income from agriculture. Our results support our hypothesis that if there is access to other sources of income for forest dwellers, their dependence on forests would be reduced.  相似文献   

5.
Agroforestry is one of the most sustainable land management systems practiced around the world due to the socioeconomic benefits that it brings to farmers. In Bangladesh, farmers practice agroforestry, applying indigenous knowledge. The present study was designed to identify the present status, management practices and its role in improving the livelihoods of farmers in northern Bangladesh. Data for the study were collected through quantitative and qualitative methods. A total of 29 tree and 38 agricultural crop species were planted by the102 farmers interviewed. Mangifera indica (relative prevalence 49%) is the most predominant species, followed by Eucalyptus camaldulensis (relative prevalence 35.4%). Farmers of northern Bangladesh plant trees in cropland for fruits (90%), fuel wood (87%) and timber production (79%). Fruit trees were planted with wider spacing while forest and fuel wood species were planted with narrower spacing. Farmer’s livelihoods improved enormously by practicing agroforestry as they have more access to food, fodder and fuel wood which is reflected by greater access to livelihood capitals (except social capital). However, farmers have experienced increased incidences of pests and diseases to the annual crops and trees. Agroforestry practices increases species diversity, ensure economic return and sustain farmer’s livelihoods.  相似文献   

6.
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7.
Communities in the Yuksam-Dzongri trekking corridor of Sikkim use a wide variety of plant species as firewood and fodder with species preferences based on their local knowledge. Current practices are increasing harvest pressures on good quality firewood and fodder plants leading to deteriorating forest condition along the trekking corridor. To help develop management strategies and to ensure the long term sustainability of forest resources in this region, it is important to understand local peoples’ basis for their species preferences. In this paper, we compared people's preferences for species used as firewood and fodder using Participatory Rural Appraisal (PRA) tools with data on these species’ chemical constituent properties to better understand the rationale for local preferences. Sixteen woody trees species (Rhododendron arboreum, Rhododendron falconeri, Rhododendron barbatum, Quercus lamellosa, Q. lineate, Schima wallichii, Prunus cerasoides, Prunus nepalensis, Castanopsis hystrix, Beilschmiedia sikkimensis, Acer oblongum, Betula alnoides, Eurya acuminate, Symplocos ramosissima, Alnus nepalensis and Litsaea elongate) and twenty-three fodder plants (including Thysanolaena maxima, Ficus nemoralis, Q. lamellosa, Imperata cylindrical, and Saurauia nepaulensis), the most widely used species in the area, were selected for study. The tree species were evaluated for their wood properties (calorific value, wood density, moisture and ash content) based on the Firewood Value Index (FVI), and fodder species for their nutritional qualities (dry matter, nitrogen and crude protein, and fat content). Most of the highly preferred species were found to have high values for firewood or fodder properties, and a significant correlation was found between the community scores and the FVI and some fodder attributes, namely dry matter and protein content. The study illustrates the applicability of local knowledge in relation to the chemical properties of species used for firewood and fodder.  相似文献   

8.
This community forestry case study examines village forest councils (van panchayat) in India’s northern state of Uttarakhand. We describe forest stocking levels of 20 community forests and address the question of whether these forests are in a position to provide commodity resources, such as fuelwood and fodder, on a sustainable basis. In addition, we report on the perceptions of the villagers on whether their respective community forest is meeting their fuelwood and fodder needs. At the biophysical level, none of the community forests were in a position to provide fuelwood and fodder on a sustainable basis. Most forests did not have adequate overstory stocking, and there was no evidence of deliberate management to improve the situation. Interviews with 400 villagers (20 in each village) supported the field findings. Villagers unanimously reported that their respective community forest was inadequate in supplying commodity needs. Furthermore, they wished the Forest Department would provide more technical and financial assistance to guide them with forest management needs. Women are a critical part of community forestry as they are the primary gatherers of fuelwood and fodder. Although the perceptions of women toward forest management issues are important, our interviews with female villagers indicate they play a passive role in decision-making. Decentralization in natural resources management sounds good at the theoretical level as it provides villagers with some authority and autonomy, but it cannot be effectively implemented without professional guidance coupled with resources. The villagers are ready and willing to improve the situation, but they do not have the resources to make change unilaterally—they need professional and financial support from the Forest Department.  相似文献   

9.
Two main roles are identified in the review: the productive one, where woody perennials yield a material output (fuel, fodder, etc.), and the ‘service’ type, with no tangible product (shelter, nutrient recycling, etc.). In their productive role trees and shrubs may supply fodder in browsing systems, or industrial material, wood products and food in forest and plantation grazing systems. Service roles, rarely divorced from productive ones, arise mainly from relationships between woody perennials and the herbaceous vegetation growing in their vicinity. As a fodder source, the relatively low productivity and palatability of high protein content foliage from most woody perennials would indicate a supplementary role, particulary during dry seasons in arid and semiarid zones. In these type of lands pod-bearing trees seem to have a greater potential for improving fodder production in silvopastoral systems. The negative effect of trees on pasture production in forest and plantation grazing is compensated by their contribution to the system through other products. Available data would support the potential of certain species of woody perennials to foster pasture growing underneath, mainly through soil enrichment. Windbreaks can also indirectly benefit pasture growth, by decreasing water loss from the soil. It is postulated that research efforts in animal agroforestry should be focused on woody perennials for browsing systems, particularly on pod-bearing trees having beneficial effects on the herbaceous layer growing underneath.  相似文献   

10.
Natural forests offer numerous benefits to indigenous communities and society at large. Incomes from forest sources play an important role in rural households. In addition to this, environmental sources in the forests contribute significantly to rural households’ livelihoods and economic well-being. This paper examines the contributions of forests to the livelihoods of the Chakma tribe in Bangladesh. Using the data from 60 randomly sampled households from three villages, it measured forest-resource use with a monetary yardstick. As revealed through analyses, natural forest-sourced income occupies the second-largest share in total average household income next to shifting cultivation income in the study area. Forest products represent an important component in the local livelihoods, with a direct forest income of 11,256?tk?year?1?household?1 (tk = taka, the national currency of Bangladesh; US$1?=?tk70), or 11% of the total income, in addition to the households receiving monetary benefits of 18,951?tk?year?1?household?1, or 21% of the total income, through the consumption of forest products. The remaining income came from shifting cultivation practice. It was also observed that larger families with more people gathering forest products realized more forest income. This study will be relevant to forest and environmental policy-makers as well as indigenous community development practitioners.  相似文献   

11.
In Ethiopia, environmental degradation leads to a reduction of forest areas with economically important tree species like Boswellia papyrifera. In an attempt to reverse this development and assist natural rehabilitation, closing degraded forest from free grazing, fuel wood collection and other interference is practiced in Tigray. Sustainability of this management will, among other things, depend on the resources' tangible benefits. This study aimed to determine and compare net benefits (in Ethiopian Birr (ETB) per ha) from the closed and open Boswellia papyrifera forestlands. Production and household surveys were carried out in Jijike and Siye tabias of Abergelle woreda in northern Ethiopia. Data on costs and benefits of frankincense production were collected from firms trading the product. Net benefits from forestlands and croplands were determined using the Net Present Value criterion. The estimated mean frankincense productions were 127 kg/ha/yr for closed forestland and 84.54 kg/ha/yr for open forestland. A significant difference (p < 0.05) was observed between per tree mean frankincense yield of closed and open sites. The average grass harvest from closed area was 2851 kg/ha/yr. The financial Net Present Values were 8622 ETB/ha for closed and 6468 ETB/ha for open forestlands. These values were by 4574 ETB and 2005 ETB higher than the sum of NPV from crop and crop residuals of a hectare of cropland in the study area of the two sites, respectively. Exporting frankincense could generate foreign exchange of 53.28 and 39.05 USD/ha/yr from closed and open sites, respectively. Rural households earn about 74% of the annual total revenue (ETB/ha) from closed and open area as wage for tapping and collecting frankincense and using of grass. Sensitivity analysis showed that managing degraded Boswellia papyrifera forestland as closed area always generates a higher NPV than the open one in case of changes in discount rate and prices of inputs and outputs. Thus, managing the forest through closed areas is a competitive land-use alternative and provides higher net benefits than both open forestland and agricultural croplands.  相似文献   

12.
Forests have conventionally been seen as a source of products for sustaining resource-poor households. Nonetheless, forest management strategies have often not been designed to meet these pressing needs. The objectives of this research were to examine the contribution of forest products to household income and determine the level of forest dependence among poor households in four sectors selected from the Musanze and Nyabihu districts of Rwanda. A multistage sampling process was used to select 165 households in a questionnaire-based survey. Data analysis was mainly based on a binary probit regression model checked for multicollinearity, hetero- scedasticity and specification bias. Forest products accounted for 31% of annual household income. Household location, number of cattle owned, and household size had a positive and significant effect on dependence on forest resources (p < 0.05). However, gender was significant at the 10% level (p < 0.1). Forests have a plural role for the rural poor and this justifies the implementation of sustainable forest management strategies. There is a need to improve the use of agroforestry innovations to enhance the contribution of forests to rural incomes. This can be achieved through a multisectoral approach involving training of rural farmers in appropriate technologies.  相似文献   

13.
通过对保山市高黎贡山周边社区森林能源现状调查分析 ,结果表明 :该区现有森林资源 192 3万m3 ,每年的薪材消耗量为 16万m3 ,占总资源量的 0 83%。目前可能提供的薪材量为 7 6万m3 ,仅为需求量的 4 7 5%。作为主要薪材来源的杂灌木林 ,每公顷产柴量只有 4m3 ,仅为一般薪炭林产量的 4 3%。依据该区的经济及资源状况、消费结构、薪材供需和经营现状认为 ,要解决社区薪材供需矛盾 ,需要增加科技投入 ,加大低产林分改造力度 ,提高单位面积产柴量 ,限额开山采樵利用 ,加强经营管理技术  相似文献   

14.
Collaborative forest management (CFM) is a joint forest management approach between government and community. It covers distant communities too, who live out of 5-km periphery of the forest and involves them in forest management. This paper assesses whether the distant communities are deriving benefits from CFM in the form of timber, fuelwood and fodder. A total of 350 households was surveyed using a structured questionnaire. The result indicated that distant users were getting more timber compared to the users who lived close to collaborative forest and it was opposite in case of fuelwood and fodder. About 75% and 85% of fuelwood and fodder needs was fulfilled from the private source- trees grown on private farmland. Although CFM approach is able to supply timber to distantly located households, rich and male-headed households are disproportionately receiving high benefits. Provisioning small timber to the poor for house construction in place of sawn timber which is very expensive, may enhance welfare of the poor.  相似文献   

15.
This study examines the species composition, diversity and economic importance of homestead forests in the household economy of central Bangladesh. The study documents 57 homestead forest species and their main usage in 90 households across three villages of Gazipur Sadar Upazila. Homestead forests in Bangladesh comprise a mixture of fruit, timber and bamboo species. While superficially homestead forestry appears unimportant in rural livelihoods, in reality the contribution is huge, both as a source of food security and for other necessary household materials. A clear understanding of the physical characteristics and economic role of homestead forests in rural livelihoods is vital for ensuring sustainable resource management. Income and production of homestead forestry on a per hectare basis are found to vary widely between landholding size classes. Significant relationships are identified between forest performance (production and income) and species richness and education level. Homestead forestry appears to be a potential subsistence income generating land-use practice in the study area. The economic scope of homestead forestry can be further enhanced provided the appropriate species composition of the forest is achieved and the education of forest owners is ensured through targeted management and policy interventions.  相似文献   

16.
In most African countries, forest-based climate change intervention initiatives such as nationally appropriate mitigation actions (NAMAs) and national adaptation programmes of action (NAPAs) are widely accepted. This is mainly due to the fact that they are relevant in addressing multiple challenges associated with rural development, mitigation and adaptation to climate change, and sustainable forest management. However, there are concerns about the implications of strategic and practical steps taken in this context on forest-dependent communities. Thus, there is need to reconcile local socio-economic vulnerabilities and forest-based climate change intervention initiatives. In the current study, socio-economic factors influencing households’ dependence on forest resources and associated implications on climate change interventions were investigated. Proportionate stratified random sampling was used to select 366 households from forest-based rural communities in Vhembe District of South Africa. A structured questionnaire was administered to household heads in 21 villages. The Pearson’s chi-square test was used to analyse the factors that influence household dependence on forest. The effects of household socio-economic characteristics on households’ forest dependence influencing factor were determined using the binary logit model. Up to 97% of the respondents depended on the forest resources predominantly because of low costs associated with using them. It was observed that socio-economic characteristics of households such as farm husbandry skills, years of residence (53–65) in the community and age of respondents (≤38–65) significantly (P < 0.05) influenced use of the forest resources. Thus, effectiveness and sustainability of forest-based climate change intervention initiatives can be promoted if the socio-economic conditions prevailing within households in areas next to forests are improved.  相似文献   

17.
This study examines the importance of mangrove resources to the livelihoods of people living beside the world's largest contiguous mangrove forest. Median annual household income was USD 1122, based on household survey data from 264 households in six villages adjacent to the Sundarbans, in Khulna, Bangladesh. Forest income represented 74% and 48% of the total household income for the lower and middle income households respectively, but just 23% for higher income households. Although higher income households derived a larger absolute income from forest resources than the lower income households, the addition of forest income to household income reduces measured income inequality by 27% suggesting that forests offer a more egalitarian source of income than most other sources at the study sites. Thus reducing forest income as a result of reduced access to forest resources would greatly affect the livelihood outcomes for the rural poor and increase wealth discrepancies among households near the forest margins.  相似文献   

18.
Parkia biglobosa is an important traditional economic tree legume of considerable multipurpose potentials that has not been well researched. It is used for fodder, human food, fuel wood, timber, green manure, medicine, provides shade for forage grasses and livestock and protects soil from heat and it is important in soil nutrient cycling.The objective of this study was to determine the effect of management regimes (cutting frequency and height) on the coppicing ability, fodder production, and nutritive value potentials of cultivated Parkia trees. This initial study has shown that the tree has a potential as fodder for livestock as well as human food and should be further studiedto fully understand its biology, agronomy and feeding value under various agroforestry or silvopastoral systems of humid tropics in West Africa.  相似文献   

19.
Recent studies point to the promise of rain forest extraction for more sustainable rural development in Amazonia but often overlook important differences within traditional communities in terms of relative economic reliance upon specific forest resources. This paper reports on a study of charcoal production among forest peasants in an Amazonian river community, near Iquitos, Peru. In-depth household interviews (n=36) provided information on household economic activity, demographic composition, and access to land, labor and capital as well as on the nature, role and economic importance of charcoal in the household economy. Our results indicate that peasant charcoal production — often cast as a rapacious, wasteful use of the forest — can provide significant cash income for forest peoples and high returns per hectare, particularly when integrated into swidden-fallow agroforestry systems, without causing notable forest destruction. Low returns to labor, however, limit prospects for peasants to prosper by charcoal production. Variations in household output of charcoal are explained by differential access to intra- and extra-household labor. Among those households most reliant upon charcoal, two subgroups are found — ‘charcoal-dependent’ households and ‘charcoal-specialized’ households — both of which rely on charcoal production, but for different reasons and with distinct outcomes. These two sub-groups are divided by differences in non-market mediated access to local land and labor. Clearly, to be successful, initiatives aimed at promoting rain forest conservation and management among ‘resource-reliant’ households must be informed by careful attention to the underlying conditions that give rise to differential rain forest reliance.  相似文献   

20.
Summary The objectives of this research were to investigate the proportion of decayed wood in mature aspen stems, its chemical composition and its potential utility as a fuel or as a substrate for conversion to fine chemicals as part of an integrated utilization scheme. Three sound and ten decayed aspen stems were sampled from a boreal forest site. Stem analysis indicate that on average, 20% of the merchantable stem volume was in advanced decay and that considerable sound wood recovery was possible. Wood specific gravity and chemical composition were determined. The holocellulose content (volumetric basis) in advanced decayed wood was reduced by 67%. Thermal analysis of the wood using a differential scanning calorimeter provided graphical evidence of a different sequence of events occurring during the combustion of decayed wood and a resulting heat content per unit weight that was 40% higher than that of sound aspen wood. A higher degree of enzymatic hydrolysis was attainable with white-rotted aspen wood. Approximately 62% of the theoretical glucose yield was obtained from decayed aspen wood after alkali-peroxide pretreatment followed by a 12 hour hydrolysis using technical grade enzymes. The above information is used to elucidate future opportunities for wood recovery and energy production from decayed wood resources.The authors would like to thank the Ontario Ministry of Natural Resources, Kirkland Lake for their cooperation; and for the technical assistance by Sally Krigstin, John Leigh, Samir Konar, Ganesh Deka and Doug Charles. We would also like to thank Dr. Morris Wayman, University of Toronto, for his advice and inspiration. We are especially grateful to the following persons and companies for supplying us with enzymes and their associated technical literature: Mr. John Bayard of Van Waters & Rogers Ltee, Canada, representing NOVO Industri, Denmark; Mr. Ian Hodge representing the Miles Biotechnology Group, Canada; and Dr. Gunther Eckert, B.A.S.F., Germany for obtaining and forwarding the products and information of Rohm GmbH, Germany. This work has been partially funded by the Edward Johnson Fellowship, University of Toronto  相似文献   

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