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1.
At present, China has the highest afforestation rate of any country or region in the world, with 47,000 km2 of tree plantations undertaken in 2008. While the prominent role of the central government’s afforestation programs is well-known, little is understood of how the system of tree seedling production and distribution supports afforestation efforts. More importantly, little attention is paid to how small-scale farmers access high quality tree germplasm in the afforestation programs. This paper examines the seedling supply system in the west of Yunnan Province in China by focusing on the three types of tree nurseries (state, collective and individual) that are being operated for the development of smallholder forestry especially in the context of decentralization. The research reveals that forestry decentralization has provided support for smallholder access to high quality planting materials and improved the effectiveness of nursery management. The reform has enabled the engagement of various forms of nurseries and created a hybrid system of state nursery operations. However, the state monopoly over the major seedling supply system using its inherent technical, market, policy and institutional advantages has limited the development of small-scale nurseries. The policy implication of this research is that improvements to the governance structure in the supply system of tree seedling may require more investment in nursery techniques, market information and provision of incentives to enhance small-scale nurseries and to contribute to seedling production. 相似文献
2.
Nestor Gregorio John Herbohn Steve Harrison Arturo Pasa Angela Ferraren 《Small-Scale Forestry》2017,16(1):83-102
The use of low quality planting material is one of the major reasons for the limited success of past reforestation programs in the Philippines and elsewhere in the tropics. In the Philippines, a national policy has been in place since 2010, which regulates the quality of seedlings. As part of the policy, government reforestation programs are required to use only high quality seedlings from accredited seedling suppliers. A survey of nurseries producing seedlings for the National Greening Program in Eastern Visayas and Northern Mindanao regions was carried out to determine the effectiveness and challenges in implementing the forest nursery accreditation policy. The survey identified factors that limit the effectiveness of seedling quality regulation including lack of auditing of seedling quality in accredited nurseries, insufficient monitoring of the seedling supply chain among the network of nurseries supplying seedlings for reforestation programs, inadequate seedling production schedules, and inappropriate criteria for seedling quality assessment. The limited sources of high quality germplasm, nursery operators’ limited information on the attributes of high quality planting materials and lack of knowledge about high quality seedling production technologies contributed to the widespread production of low quality seedlings. The lack of seedling quality checks makes the government’s bidding scheme of seedling purchases prone to favouring the proliferation of low quality seedlings that are usually sold at lower prices. Nursery accreditation represents a major initiative in promoting the success of Philippine reforestation but our study found that considerable improvement of the policy and of its implementation is necessary. From our study, key lessons can be learned for the implementation of forest landscape restoration initiatives in other tropical developing countries. 相似文献
3.
A decentralized seedling production is regarded as the most effective means of providing smallholders with planting materials. However, the sustainability of smallholder nursery operation is constrained by several factors, including the limited availability of germplasm, lack of technical skills and low seedling demand low viability of seedling market. The government nursery sector could complement the weaknesses of the smallholder nursery group but government nurseries are not operating effectively to enhance the availability of high quality seedlings of a wide species base for smallholder forestry. Seedling production in government nurseries is quantity-orientated with low emphasis on the production of high quality planting materials. Germplasm used in seedling production is mostly collected from unselected sources and seedlings produced are mostly of low physical quality. The species selection in government nurseries is heavily based on the availability of germplasm which resulted in the production of a few species which are commonly raised on private nurseries. The duplication of species of most seedlings raised in government nurseries with those produced in private nurseries and the far distance of government nurseries from the villages has resulted in low uptake of seedlings by smallholder tree farmers. For the government nursery sector to become more effective in providing support in the present paradigm of decentralized seeding production, a change from its production system and a broadening of the role it plays is needed. The social mobilization on seedling production as a scheme of implementing the Green Philippines Program has led the Department of Environment and Natural Resources to acknowledge the seedling production activity of private individual and communal nursery groups. This can be an opportunity for organizing the private and government nursery sectors to promote the operational effectiveness of the overall forest nursery industry. 相似文献
4.
This paper examines seedling production systems for small-scale forestry in northern Mindanao, particularly the constraints and opportunities to sustain the operation of smallholder nurseries. Various types of nurseries were identified to examine issues and concerns operators face, and data collected through a survey of nursery operators, discussion with government and NGO personnel, and literature review. Many smallholders in northern Mindanao have been engaged in seedling production, for farm needs and sale in local markets. The interest of smallholder to sustain seedling production depends on market demand and incentives, which translates to financial benefit on sound nursery practices and of reliable access to profitable markets. Activities that will assist smallholder nurseries to achieve full potential have been identified as: available nursery technologies to produce high quality planting materials in sufficient quantity; building farmer groups to facilitate seedling production and enhance the scale of product marketing; building partnerships with various service providers and other stakeholders to address technical, institutional, marketing and policy issues that may hamper the operation of smallholder nurseries; access to markets and market information; and provision of incentives and policy support. Associated benefits from small-scale seedling production accrue to the government, wood processors and to the public in general. 相似文献
5.
Bertin Takoutsing Zacharie Tchoundjeu Ann Degrande Ebenezar Asaah Amos Gyau Frederick Nkeumoe Alain Tsobeng 《Small-Scale Forestry》2014,13(1):65-77
In developing countries seedlings are often produced in small-scale nurseries as a means to raise tree planting materials and, provided they are of high quality, these can form the basis for successful forest plantation initiatives. This study uses morphological characteristics to assess the quality of seedlings of three tree species (Persea americana, Cola acuminata and Dacryodes edulis) in the Western Highlands of Cameroon. The growth characteristics and quality indicators of seedlings produced in two nursery categories were compared—three nurseries collaborating with the tree domestication program implemented by the World Agroforestry Centre (Category 1) and three nurseries collaborating with government and non-governmental projects (Category 2). Seedlings produced in nurseries in the first nursery category were found to be uniform in terms of growth characteristics and quality indicators. In the second category, there were relatively higher seedling proportions having measured parameters out of threshold standards for root to shoot ratio and for sturdiness quotient. Significant differences between nursery categories (at α = 0.05) were detected in root collar diameter of C. acuminata and D. edulis and in shoot dry weight of D. edulis. These differences could be attributed to better nursery management as a results of training and technical backstopping received by nursery operators in Category 1. The level of experience of nursery operators in both categories was found to be insufficient and greater exposure to skills and knowledge could enhance the production of high quality seedlings. 相似文献
6.
Gudeta Weldesemayat Sileshi Elias Kuntashula Patrick Matakala Philip O. Nkunika 《Agroforestry Systems》2008,72(2):87-101
Pest management research within the context of agroforestry is in its infancy, and it is often difficult to say when a particular
pest justifies investment in research to establish facts. Understanding the potentials and drawbacks of farmers’ indigenous
ecological knowledge (ethnoecology) may form the basis for constructive collaboration between farmers, agroforestry scientists
and extension staff. Therefore, the objectives of the study were to (1) assess farmers’ knowledge and perceptions of pests,
(2) prioritize pest problems that limit tree planting and maize production based on farmers’ own criteria and (3) to identify
farmers’ indigenous pest management practices for priority pests. Data were collected using community meetings, individual
interviews and direct observation by the first author. The farmers involved in this study in eastern Zambia had over ten years
of experience, while most of the farmers in Mozambique and parts of southern Malawi were new to agroforestry. Farmers perceived
insects as the major causes of tree mortality, followed by drought, bush fires and browsing by livestock. Among the biological
constraints to maize production, insects (particularly termites and stalk bores) and weeds (particularly Striga asiatica) were more important in farmers’ minds than crop diseases. Fundamentally, the farmers’ perception of the causes of tree mortality
and crop pests agreed with researchers’ perceptions and the literature. Both termite and witch weed problems were associated
with low soil quality, and farmers use various indigenous control practices to control these pests. Some farmers did not know
the causes of tree mortality, and hence do not take action. Farmer’s perception of tree mortality was found to be a function
of operator-specific variables such as sex, level of education and years of experience with tree species. 相似文献
7.
Farm Level Tree Planting in Pakistan: The Role of Farmers’ Perceptions and Attitudes 总被引：1，自引：0，他引：1
The low proportion of forested land and continuing degradation of existing forest cover are serious threats to the sustainability
of forestry in Pakistan. Farm forestry has been identified as a feasible solution, particularly in the plain areas. Applying
the Theory of Planned Behaviour in a survey of 124 farmers in Dera Ismail Khan district of Pakistan’s North West Frontier
Province showed that farmers’ willingness to grow trees on their farms is a function of their attitudes towards the advantages
and disadvantages of growing trees, their perception of the opinions of salient referents and factors that encourage and discourage
farm level tree planting. Farmers viewed farm forestry as economically beneficial and environmentally friendly. Tree planting
was perceived as increasing income, providing wood for fuel and furniture, controlling erosion and pollution and providing
shade for humans and animals. Farmers saw hindrance in agricultural operations and the harbouring of insects, pests and diseases
as negative impacts of tree planting; however, these were outweighed by their perceptions of positive impacts. Tree growing
decisions of farmers were influenced by the opinions of family members, owners/tenants, fellow farmers and village elders.
The factors that significantly predicted farm level tree planting were availability of barren land, lack of markets, lack
of nurseries and damage caused by animals and humans. Farm forestry programmes are more likely to be successful if they acknowledge
and address the factors which underlie farmers’ reasons for planting or not planting trees. 相似文献
8.
The influence of farmers’ mental models on the success of an agroforestry extension program on Leyte Island in the Philippines
was investigated. Knowledge of farmers’ mental models and hence the likely acceptance of technology was used to inform the
design of a hypothetically expanded program. To gain an insight into the reasons behind differing acceptance of extension
assistance, data were collected and analysed from formal interviews, translated conversations and visual observations. The
data provided a chain of evidence and triangulation between farmers’ stated intentions and their actions. Farmers had little
prior knowledge of nursery technology and were highly receptive to extension assistance which enabled them to develop high
self-efficacy in seedling production. However, farmers’ rejection of silvicultural advice to thin and prune existing plantations
was predicated by existing attitudes to forest resource management. Farmers also expressed a strong preference for a low-cost
and low-input approach to establishing timber trees. Visual observations of farmers’ tree establishment practices indicated
the existence of gaps in their knowledge of tree growth processes. This investigation illustrates the need to elicit farmers’
mental models as a parallel enquiry to extension activities. If agroforestry extension is to be constructivist and participatory,
accommodation of farmers’ mental models and modification of program goals may be necessary. Relatively little is known about
the reasons for farmers’ acceptance or rejection of silviculture in Leyte and these results indicate that further research
into the way that farmers’ mental models filter and guide acceptance of advice may be worthwhile. 相似文献
9.
10.
Ann Degrande Patrick Tadjo Bertin Takoutsing Ebenezar Asaah Alain Tsobeng Zac Tchoundjeu 《Small-Scale Forestry》2013,12(3):403-420
Availability of high quality tree planting material within proximity of farmers and at affordable prices is one of the prerequisites for larger uptake of tree cultivation. This study examines whether rural small-scale nurseries can produce a diversity of tree planting material and whether resource-poor farmers have access to it. Twelve nurseries supported by the tree domestication program in the West and North-west regions of Cameroon were compared to 12 nurseries in similar conditions, but not in contact with the program. Nurseries using the domestication approach were found to provide tree planting material that responds better to farmers’ needs in terms of quantities, species and propagation methods used. Their clientele is more diverse including farmers from the communities where the nurseries are located, but also from far beyond. However, prices of vegetatively propagated material were considered the most prohibitive factor. It is concluded that tree planting initiatives should refocus efforts towards technical training and business support to small-scale nurseries to increase efficiency. Research efforts should look for ways of reducing production costs and improving nursery productivity. 相似文献
11.
This paper presents results of survey research into the role of the forestry nursery sector in the development of smallholder
forestry in Leyte, Philippines. Seedling production in the province is basically carried out by three categories of nurseries:
individual, communal and the government. Seedlings in the government nurseries are primarily raised for free distribution
to landholders but the extension scheme fails to reach the majority of the smallholder farmers. Seedling demand of landholders
is mostly catered for by the more numerous and accessible individual and communal nurseries. However, problems of capital
outlay, sources and supply of germplasm, technical knowledge in nursery management for both timber and fruit trees and low
sales are among the major impediments in the sustainability of small-scale nurseries. Most of the communal nurseries fail
to sustain the operation after the withdrawal of supporting agencies. Knowledge on site-species matching is needed not only
by small-scale nursery operators but also by the managers of government nurseries. It is concluded that the seedling industry
in the province is not well established and there is a need to organise better the overall nursery system so as to improve
the availability of seedlings and promote appropriate site and species combinations. 相似文献
12.
Fernando Santos Martín Manuel Bertomeu Meine van Noordwijk Rafael Navarro 《Small-Scale Forestry》2012,11(1):47-60
The ‘when, where and how’ of decisions by smallholder upland farmers to plant trees as part of their use of natural, human
and capital resources needs to be understood if policy support is to result in actual recovery of tree cover as part of a
‘forest transition’ trajectory. In large parts of the Philippines the turning point may be close. Data on resource access
and tree planting decisions were gathered from a household survey, with a total of 148 respondents in four rural communities
in Leyte Province in Central Philippines. Data were analysed using logistic regression analysis. Household-level results reveal
that the outcomes of the decision-making processes primarily depend on the availability of land and access to remaining forest
resources rather than socio-cultural or economic factors. The total area of land and number of parcels managed by the household
plus security of land tenure through ownership was found to have a statistically significant effect on farmers’ decision to
plant native timber trees. Access to surrounding natural forest is negatively associated with farmer tree planting. 相似文献
13.
Kiyoshi Miyakuni 《Journal of Forest Research》1999,4(2):67-74
Shifting cultivation is one of the main factors that has caused forest degradation in many tropical countries. In Sabah, Malaysia,
the government has granted land titles to local farmers outside the Forest reserve, and introduced tree cash crops to reduce
farmers’ dependence on shifting cultivation. Granting land titles, however, was not always an incentive for farmers to plant
tree cash crops. Farmers often planted tree cash crops on land without secure legal rights. The Land Ordinance and illegal
logging had introduced exclusive and (semi-)permanent rights to land into this region, and the Forest reserve also was divided
among villagers. The Land Ordinance stipulates that planting trees confers permanent heritable and transferable rights of
use and occupancy but not within Forest reserves. Local farmers who were anxious about their land rights believed that they
could obtain those rights even within the Forest reserve, and applied for land titles. Farmers planted tree cash crops not
only for future income but also to secure their land rights. At present, the policy of Forest reserve has nearly collapsed
in this region and it is impossible to neglect or remove local farmers if the government utilizes Forest reserves for any
purpose. Lands in the interior regions will be reclassified in the near future out of necessity. 相似文献
14.
The response of farmers to personalised forestry and agroforestry extension assistance has not been well documented in the
Philippines, thus providing the impetus for this research in which the effectiveness of extended on-farm assistance was compared
with more limited assistance. In four municipalities in Leyte Island, farmers responded positively to an extended program
which helped them overcome problems in germinating and growing seedlings and establishing trees on their land. A limited assistance
program which sought to make use of farmers’ familiarity with growing and raising plants was relatively unsuccessful, with
less preparation of tree planting sites and a higher rate of abandonment. Allowing farmers freedom to select planting sites
and aspects of technical advice which suited their personal circumstances, encouraged a high degree of cooperation between
extension staff and farmers, but 38% of farmers neglected post-planting weed control and 35% of sites were inappropriate for
growing trees. Destruction of sites by flooding and grazing also caused farmers to blame extension staff even though these
risks had been discussed with them beforehand. This suggested that a more interventionist approach would be appropriate for
site selection although it may reduce recruitment. The number of farmers recruited through local government staff was low,
but attendance by neighbours at locally held demonstrations was high, suggesting an avenue for further recruitment. Overall,
the program was successful in shifting the initiative for further planting from extension staff to those farmers who received
extended extension assistance. 相似文献
15.
Increasing attention has been paid to the question of whether and how community forestry links with poverty reduction in the
mountainous regions in developing countries. Household-based community forestry was first implemented in Yunnan and spread
over other parts of China in the 1980s. In this forestry management system, rural households are the main actors. Household
forestry is a form of small-scale community forestry and suits the rural areas of China, where social overhead capital and
skilled human resources are lacking. Community forestry has played a remarkable role in guiding and facilitating rural poverty
alleviation in Huoshan County, Anhui Province. This paper describes how the community forestry project in Huoshan County has
helped the farmers improve their livelihoods through the creation of a forestry model involving science and technology demonstration
households and independent farmers’ organisations. The sustainable poverty alleviation model developed in Huoshan has proved
to be effective in poverty alleviation and environmental protection, featuring the participatory forestry components of the
project, namely household forestry, science and technology demonstration households, and independent farmers’ organisations.
With technological and financial aid from government, the local farmers were able and willing to establish this small-scale
forestry management system, planting fast-growing multiple-use tree species with substantial economic benefits. 相似文献
16.
In the Philippines, smallholder farmers have become major timber producers. But the systems of timber production practiced
have several limitations. In intercropping systems, the practice of severe branch and/or root pruning reduces tree-crop competition
and increases annual crop yields, but is detrimental to tree growth and incompatible with commercial timber production. In
even-aged woodlots, lack of regular income and poor tree growth, resulting from farmers’ reluctance to thin their plantations,
are major constraints to adoption and profitable tree farming. In the municipality of Claveria, Misamis Oriental, the recent
practice of planting trees on widely spaced (6–8 m) contour grass strips established for soil conservation suggests ways to
improve the adoptability (i.e., profitability, feasibility and acceptability) of timber-based agroforestry systems. Assuming
that financial benefits are the main objective of timber tree farmers, we develop a simple linear programming (LP) model for
the optimal allocation of land to monocropping and tree intercropping that maximizes the net present value of an infinite
number of rotations and satisfies farmers’ resource constraints and regular income requirements. The application of the LP
model to an average farmer in Claveria showed that cumulative additions of widely spaced tree hedgerows provides higher returns
to land, and reduce the risk of agroforestry adoption by spreading over the years labour and capital investment costs and
the economic benefits accruing to farmers from trees. Therefore, incremental planting of widely spaced tree hedgerows can
make farm forestry more adoptable and thus benefit a larger number of resource-constrained farmers in their evolution towards
more diverse and productive agroforestry systems. 相似文献
17.
Direct payments offered as compensation for adopting practices which increase carbon sequestration have implications for biodiversity
conservation. This study analyzed changes in carbon stocks and tree diversity on carbon and non-carbon farmers’ plots in a
pilot carbon offset project implemented by smallholder farmers in south western Uganda. On carbon farms, results indicate
a respective decline and an increase in carbon density on farmlands and grasslands. On non-carbon farmers’ plots, there was
an increase in both farmland and grassland carbon density. Carbon densities in farmland were significantly (t = −2.38; P = 0.023) higher than those in grasslands. There were no significant differences in tree diversity on farmlands but significant
differences (species richness t = 2.18; P = 0.04; Shannon Index t = 2.92; P value = 0.0077) in grasslands. Tree diversity on carbon farmers’ plots decreased in farmlands, but increased in grasslands,
while for non-carbon farmers there was a decline in tree diversity in both grasslands and farmlands. There were strong positive
correlations between carbon density and tree diversity. 相似文献
18.
Do socio-psychological factors matter in agroforestry planning? Lessons from smallholder traditional agroforestry systems 总被引：1，自引：0，他引：1
Most of the well planned rural development forestry programs of the 1970s, and agroforestry in particular, were either not
adopted by the intended beneficiaries or failed to meet the needs and aspirations of the rural people, particularly in the
developing countries. The reasons for non-adoption in some cases appear to be technical, bio-physical, social and economic
(termed as rational reasons by the planners), but in other situations the reasons are not so easily recognisable and comprehended
(termed irrational reasons). These irrational reasons are the perceptions and attitude of the farmer towards farm practices,
and their role in agroforestry planning has remained almost completely neglected. The present study is based on a household
survey of the farmers in traditional agroforestry systems of Western Himalaya and investigates the importance of perceptional
and attitudinal aspects of the farmers with regard to agroforestry adoption and extension. In the present study, farmers’
perceptions of restrictions on felling of trees from their own land and attitudes towards agroforestry were the most important
sociopsychological factors which influenced tree growing. This study implies a need to take into account the socio-psychological
factors of the farmers for planning socially acceptable agroforestry programs. The importance of study of various de jure rules and regulations controlling the use of on-farm tree resources and related exemptions and their association with farmers’
perceptions and tree growing is highlighted to develop policies to encourage tree growing in agroforestry. 相似文献
19.
Woody plants diversity and possession in small-scale tree and shrub growing practices among farmers of central highland Ethiopia
were assessed by using a complete census of the trees and shrubs existing on farmers’ lands. The future prospects of diversity
and possession of woody plants in the agricultural landscapes were also investigated by using the farmers’ species preferences
and seedling demands as indicators. Comparisons were made across wealth classes, proximity clusters to a nearby state forest
and land uses. It was found that 27 tree and 21 shrub species exist on lands of the studied households. With increasing wealth
status of the households, the tree and shrub species richnesses increased. Tree and shrub species richnesses were highest
in boundary plantings and homesteads respectively. Small-scale woodlots had the highest number of tree stems while homesteads
contained the highest number of shrub stems. The number of tree stems a household possesses is strongly influenced by distance
from the state forest, family size, educational level of the household head and number of iron-roofed houses owned. And, the
shrub stems possession is significantly influenced by wealth status, distance from the state forest, land holding size, family
size, livestock holding, age of wife and possession of off-farm income sources. The species preference analysis and seedling
demand computations indicated that the woody species diversity is less likely to change in the future because there is no
difference between the currently existing species and the preferred ones. Nonetheless, the number of tree and shrub stems
on the farmers’ holdings could increase if the seedling demands of the preferred woody species are met. 相似文献
20.
Folaranmi D. Babalola 《Small-Scale Forestry》2008,7(3-4):263-273
Small-scale private nurseries in Ibadan, Oyo state, Nigeria, are examined with the purpose of identifying policy options that could further enhance development of the enterprises. A random sample of nurserymen operating in the city was interviewed about their reasons for engaging in the nursery business, types of services rendered by the nurserymen to seedling buyers, duration of nursery establishment, mode of land acquisition, species of seedling produced, factors affecting price of the seedling species, and source and cost of labour. Most of the private nurseries were owned by private individuals engaging in the business for reasons including income generation, as a hobby, and for research. Landscaping was the most common service rendered by the nurserymen; other services included maintenance of private gardens, and supply of seedling to individuals and landscaping contractors. Most of the land used for establishing the nurseries was obtained through lease from the government, with some through purchase and family land. Most of the labour was provided by the nurseries operators, employment of family members and some hired labourers. Seedlings of ornamental plants were in highest demand followed by seedlings of horticultural crops, and forest trees. Requirements for the nursery industry to develop further were identified, including land availability and at affordable price, and affordable interest rates charged by financial institutions on businesses loans. Training programs including workshops and seminars are necessary to keep nursery operators abreast with current techniques of seedling propagation as well as record keeping and business principles. Further, the nurserymen need to embark on strategies that add value to their products. 相似文献