共查询到20条相似文献,搜索用时 15 毫秒
1.
P. N. Pali M. Schut P. Kibwika L. Wairegi M. Yami P. J. A. van Asten 《国际农业可持续发展杂志》2018,16(3):272-285
Agricultural policies in sub-Saharan Africa have paid insufficient attention to sustainable intensification. In Uganda, agricultural productivity has stagnated with aggregate increases in crop production being attributed to expansion of cultivated land area. To enhance sustainable crop intensification, the Ugandan Government collaborated with stakeholders to develop agricultural policies using an evidence-based approach. Previously, evidence-based decision-making tended to focus on the evidence base rather than evidence and its interactions within the broader policy context. We identify opportunities and pitfalls to strengthen science engagement in agricultural policy design by analysing the types of evidence required, and how it was shared and used during policy development. Qualitative tools captured stakeholders' perspectives of agricultural policies and their status in the policy cycle. Subsequent multi-level studies identified crop growth constraints and quantified yield gaps which were used to compute the economic analyses of policy options that subsequently contributed to sub-national program planning. The study identified a need to generate relevant evidence within a short time 'window' to influence policy design, power influence by different stakeholders and quality of stakeholder interaction. Opportunities for evidence integration surfaced at random phases of policy development due to researchers’ ’embededness’ within co-management and coordination structures. 相似文献
2.
目的 实现小农户与现代农业发展有机衔接是我国农业现代化建设的重要内容。方法 文章基于解构计划行为理论,利用甘肃省348户农户调查数据,采用多群组结构方程模型分析小农户参与现代农业行为的影响因素。结果 (1)小农户参与现代农业行为意愿模型中,农户家庭禀赋是最主要的影响因素,行为态度、感知行为控制次之,交易费用和主观规范的影响力最小。(2)小农户参与现代农业的意愿显著正向影响参与行为。(3)感知绩效对小农户行为态度的影响强于感知风险;小农户对同伴的信任度明显高于对上级政府和村集体的信任度;缔约条件对小农户参与意愿的影响更有效,农户较为重视进入门槛高低;劳动力数量、农户受教育水平以及对收购产品中介的熟悉程度对小农户行为意愿均具有重要影响。(4)多群组分析得出不同类型小农户参与现代农业意愿与行为的影响因素存在显著差异;家庭禀赋对自给型、兼业型和退出型农户的参与意愿具有显著的负向影响,对发展型农户参与意愿具有显著的正向影响;行为态度、主观规范、感知行为控制等变量对不同类型小农户参与意愿与行为存在显著的正向影响,且这些变量在不同类型农户参与现代农业意愿与行为路径中具有调节效应。结论 要加强现代农业宣传力度,改善农户行为态度;积极营造社会氛围,发挥周围人群的示范效应;提供技术、资金以及市场信息支持,增强农户对现代农业的掌控力;大力培育和发展新型农业经营主体,为小农户融入现代农业设计差异化的政策支持体系。 相似文献
3.
Russell L. Lamb 《Agricultural Economics》2000,22(3):271-298
The response of agriculture to changes in relative prices is an important factor in the success of structural adjustment programs in Africa. In this paper I estimate supply functions for total agricultural output, food crops and export crops in 14 African countries for the years 1975 to 1990. Food and export crops are substitutes in production in the short run. Total agricultural output responds negatively to increases in export prices and positively to increases in food prices. A plausible explanation is that as farmers shift resources to export crop production, food supply falls in the short run, while the increase in export supply may take several years to materialize. The exchange rate is significant in explaining both food and export crop production and aggregate agricultural supply, suggesting that the exchange rate is acting as a proxy for excluded macroeconomic variables or that changes in the exchange rate are not passed immediately through to prices. 相似文献
4.
[目的]文章利用2007—2016年联合国贸易统计数据,从贸易总量、贸易结构等相关数据切入,研究“一带一路”倡议下,中国与东南亚11国①农产品贸易的现状,双边农产品的出口比较优势与贸易互补性以及潜在合作空间,挖掘中国与东南亚国家农产品贸易潜力,为双边农产品贸易的进一步拓展提出建议。[方法]采用显示性比较优势指数、贸易强度指数进行实证分析。[结果]“一带一路”倡议下,中国与东南亚农产品贸易关系更加紧密; “一带一路”倡议有效促进了中国农产品出口东南亚,改善了中国在与东南亚国家农产品贸易中的逆差地位。[结论]东南亚农产品出口优势整体强于中国,双方农产品出口优势存在较大差异,农产品贸易存在较强的互补性且具有一定的增长潜力。 相似文献
5.
Cathy Rozel Farnworth Frédéric Baudron Jens A. Andersson Michael Misiko Lone Badstue Clare M. Stirling 《国际农业可持续发展杂志》2016,14(2):142-165
It is remarkable that despite wide-ranging, in-depth studies over many years, almost no conservation agriculture (CA) studies consider gender and gender relations as a potential explanatory factor for (low) adoption rates. This is important because CA demands new ways of working with the farm system. Implementation will inevitably involve a reallocation of men's and women's resources as well as having an impact upon their ability to realize their gender interests. With respect to intra-household decision-making and the distribution of benefits, CA interventions have implications for labour requirements and labour allocation, investment decisions with respect to mechanization and herbicide use, crop choice, and residue management. CA practice may impact upon the ability of households to source a wide variety of crops, wild plants, and insects and small animals for household nutrition. Gender biases in extension service design can sideline women. This paper examines the limited research to date on the interactions between CA interventions and gender in East and Southern Africa, and, based on the gaps observed, sets out a research agenda. It argues that attention to gender in CA is particularly timely given the increasing interest in CA as a means of adapting to climate change. 相似文献
6.
加强农业国际合作开发是中国特色农业现代化道路的重要组成部分,东南亚与我国合作开发地缘优势明显,是我国农业海外合作开发的重要首选区域。在国家\"一带一路\"的全球战略格局指导下,通过区域比较优势分析等方法,立足我国对粮食等大宗战略农产品的发展需求、东南亚各国的农业资源禀赋与合作意向,从提升我国农业国际竞争力和话语权的高度,系统谋划了东南亚地区农业合作开发的战略重点领域,确定以稻谷、天然橡胶、油棕榈、木薯、甘蔗和林业六大行业为合作重点,以提升原料掌控权和贸易话语权为关键环节,根据东南亚重要交通物流通道、资源禀赋和产业基础的区域差异,提出\"三线两区\"的合作开发总体布局。围绕各种合作有力推进,提出设立专项基金、加强金融支持、提升政府服务等政策建议保障,为我国政府与企业在东南亚地区长远战略合作的顶层设计提供重要依据和支撑。 相似文献
7.
New Rice for Africa (NERICA) was developed by the Africa Rice Center by crossing high-yielding Asian rice (Oryza sativa L.) with locally adapted African rice (Oryza glaberrima Steud.). Community-based seed production of NERICA varieties was introduced in a village in central Benin in 2006 through seed dissemination projects. It was reported that high-adoption rates of these varieties were mainly due to high demand by development projects for seed dissemination, and to incentives (i.e. selling the rice seed at a higher than local market price to a local extension service) for farmers to grow NERICA varieties. A follow-up survey was undertaken after the seed dissemination projects ended to examine the change in the cultivation of NERICA varieties. About half of the farmers had ceased cultivation of NERICA varieties in 2011. The reasons for abandonment were the combined effects of reduced seed demand and low yields, which were attributed to a lack of access to credit and training on NERICA cultivation practices. The majority of the farmers did not abandon rice cultivation, but grew other high-yielding varieties, including one aromatic variety for which there was market demand. We conclude that to avoid immediate reductions in the adoption of new varieties after projects are terminated and to enhance agricultural sustainability, the varieties should be introduced in conjunction with appropriate group training on their cultivation, and the project should target farmers who do not have off-farm businesses. Furthermore, access to credit should also be enhanced, and the marketability of the varieties should be assessed. 相似文献
8.
Commodity markets have become key forces transforming upland livelihoods, social relations and landscapes in Vietnam and throughout Southeast Asia. This paper examines the processes of market formation and their effects on local livelihoods and social relations in a village of Vietnam's north-western uplands. The results indicate that villagers' reactions to new opportunities arising from decollectivization and market liberalization wove them into an increasingly intricate 'commodity web'. Differences among households widened as households with an initial advantage accumulated further advantages. Yet the relations governing access to land and product markets also provided a floor of subsistence for the disadvantaged. The findings demonstrate the need to interrogate commodity markets, investigate the practices and relations constituting them, and analyse how they distribute income and risks among the actors involved. The nature of commodity markets, together with the relations governing access to productive resources, influences processes of social differentiation in the uplands. 相似文献
9.
A major driver of change in the Mekong River basin relates to hydropower development and the consequent changes in landscape and natural resource access regime that it induces. In this paper, we examine how the livelihoods of resettlers evolve following resettlement, and examine the determinants of that process. The study takes place in the context of the Theun Hinboun Expansion Project in Lao PDR. Based on longitudinal household surveys conducted before resettlement as well as 1, 2, and 3 years after resettlement, we identify the process of livelihood adaptation in resettled communities. Results show varying capacity to absorb shocks and cope with change even within a small village with seemingly equal conditions. Our results suggest that a more detailed understanding of this adaptation process is key to improving interventions for rebuilding the livelihoods of those resettled by development projects in rural areas. 相似文献
10.
Alex F. McCalla 《Agricultural Economics》1999,20(2):95-103
Food security for the world in 2025 is possible and probable if the right set of things are done, starting now. But the task will not be easy. It is both a technology and a political/economic challenge. The challenge for sub-Saharan Africa is even greater. While other regions improved per capita food availability over the last 30 years, Africa's availability declined. But food security is about more than supply. It is also about access which means income generating employment is critical. Meeting future requirements in Africa and the world will require sustainable intensification of complex production systems, appropriate national and international policies and continued investments in agricultural research. Without these conditions and increased employment intensive growth, prospects for the future are less bright. 相似文献
11.
A participatory rural appraisal (PRA) conducted in East Timor in 2004 as part of an agricultural development project provided the basis for a number of community-based participatory extension initiatives. The PRA involved several communities throughout a watershed and also served as a training exercise for local agriculture ministry staff. Despite the poverty of many of the communities involved, and in contrast to published literature on the local agricultural situation, farmers clearly expressed their need for more marketable crops and alternative sources of livelihoods. Their desires contrasted with the project's initial assumption that the major need was for increased production of staple crops to alleviate food scarcity. The project consequently branched out from concentrating on basic agronomy of staple crops into developing marketable crops, improving livestock production and facilitating development of a local business. Farmers' groups were set up to allow farmers to develop their own agricultural enterprises. Some ministry staff who participated in the project welcomed the opportunity to move from the traditional authoritarian extension system set up under Indonesian colonial rule to a more collegial and educational system. The breakdown of institutions and lines of authority following independence may create new opportunities for participatory development in newly independent states. 相似文献
12.
《国际农业可持续发展杂志》2013,11(1):171-185
This paper reports on how the farmer field school (FFS) approach has been used to successfully catalyse important changes among stakeholders in the savannah zones of West Africa. Improved agronomic practices, better decision-making skills and diversification of smallholder farms in developing countries are shown to provide farmers the opportunity to rebuild soil fertility, optimize input use and introduce new sources of food and nutrition and marketable products for local populations. This is a knowledge-intensive endeavour best addressed through community-based processes of education. By the end of 2010, approximately 116,000 rice, vegetable, cotton and other farmers would have been involved in season-long FFS in four West African countries, resulting in improved yields and incomes and ushering substantial progress in both reducing the use of chemical pesticides and improving the use of fertilizers and organic amendments. The programme is increasingly being successfully integrated into local, provincial and national structures. Experienced personnel are being employed to initiate similar programmes in nearby countries. The evolving network of experienced actors and committed countries provides a platform for collaboration by a growing set of partners and represents a large-scale, long-term programmatic approach to helping sustainably intensify and develop agriculture in Africa. 相似文献
13.
In more developed societies the concept of land tenure security is implicit and backed by long standing institutions. In contrast, the concept is less recognised and carries divergent meanings in developing countries. In these contexts past conceptualisation efforts have favoured reductionist approaches: the concept is narrowed to one aspect or another, but, no shared agreement on a definition prevails. The absence of this basic theoretical knowledge impedes discourse on land policy formulation, implementation, and evaluation. This paper contributes to this issue by revisiting and refining the concept of tenure security in the context of Sub-Saharan Africa's rural poor. Using a systematic review, scientific evidence on the conceptualization issue is provided. A typology of different schools of thought is developed: land tenure security is shown to be understood through (1) economic, (2) legal or (3) adaptation lenses. Generic constructs from these viewpoints tend to dominate the notion of tenure security and subsequent land policy formulation; however, it is argued that none adequately describe the totality of the concept. Using the review results and a systems approach a new inclusive concept of tenure security for rural poor in Sub-Saharan Africa is developed. The refined concept of security is defined as an emergent property of a land tenure system. The content of such security is explained by interactions between all elements of a land tenure system as a whole. It is concluded that rural poor in Sub-Saharan Africa can enjoy the total security when interactions between all elements occur in a dynamic equilibrium. 相似文献
14.
Agricultural productivity in 41 Sub-Saharan Africa (SSA) countries from 1960 to 1999 is examined by estimating a semi-nonparametric Fourier production frontier. Over the four decades the estimated rate of productivity change was 0.83% per year, although the average rate from 1985 to 1999 was a strong 1.90% per year. Former UK colonies exhibited significantly higher productivity gains than others, while Liberia and countries that had been colonies of Portugal or Belgium exhibited net reductions in productivity. We measure a significant reduction in productivity during political conflicts and wars, and a significant increase in productivity among those countries with higher levels of political rights and civil liberties. 相似文献
15.
研究目的:考察东南亚地区海外耕地投资市场主体之间的竞合关系,为科学规划指导海外耕地投资布局提供政策参考。研究方法:Lotka-Volterra模型。研究结果:(1)海外耕地投资规模的增长符合Logistic规律,2008年以来东南亚7国陆续迎来引资增长拐点,现有耕地投资存量已接近东南亚最大可投资规模。(2)从东南亚引资格局来看,各国捕食关系占据半数而互惠共生关系占比较低,引资关系有待进一步改善。(3)从投资国视角来看,中国和东南亚本地国家在东南亚耕地投资市场上表现为相互促进的互惠关系,与亚洲其他国家和欧美国家形成竞争关系,同时欧美国家、东南亚本地国家、亚洲其他国家之间表现出激烈的捕食关系。研究结论:目前东南亚地区海外耕地投资市场环境复杂,不利于海外耕地投资的持续发展,中国在后续海外耕地投资布局过程中应充分考虑市场竞合关系,为全球粮农治理贡献中国智慧。 相似文献
16.
Population growth, increasing wealth and changing diets require agriculture in Sub-Saharan Africa to intensify to meet future food demand and ensure food security in the region. Conservation agriculture can increase yields in the long run and reduce the negative environmental impacts of intensive farming. In changing the mix of resources used and how they are managed, the adoption of conservation agriculture can have a direct impact on farm labour. We study the relationship between conservation agriculture and labour input requirements as observed in five Sub-Saharan African countries. We focus on the amount of work required and the source of the work employed (household or hired, by gender, by children and by production stage). We apply multinomial endogenous switching regression models on a panel of household and farm data from Ethiopia, Kenya, Malawi, Mozambique and Tanzania. We find that conservation agriculture increases farms’ labour input requirements. Higher demand is driven by more work during the harvesting and threshing stages. Increases in labour requirements are usually met by household labour, not paid work. The workload change is also higher for women than for men, and, in certain cases, is met by children. 相似文献
17.
[目的]为清晰识别农业资金投入对新疆农民收入的影响程度,并给予地方政府进一步优化调整农业资金使用效能提供参考依据。[方法]文章选取1978~2013年新疆统计数据,采用协整分析、误差修正模型等方法对财政支农、农业贷款、农民自主投资与新疆农民人均纯收入进行了实证探究。[结果]新疆地区财政支农、农业信贷、农民自主投资与农民人均纯收入之间存在长期均衡关系;而短期内财政支农、农业信贷以及农户自主投资的促进效应不如长期明显,其中农业贷款的收入效应远低于财政支农和农民自主投资;财政支农、农民自主投资与农民人均纯收入在短期内具有格兰杰因果关系,长期则格兰杰因果关系解释力逐渐减弱,而农业贷款在短期内不是新疆农民人均纯收入增长的格兰杰原因,长期则互为格兰杰因果关系。[结论]该文提出加大财政支农投入力度,提高财政资金配置效率;推动农村金融改革,提高农村金融效率;提振农民自主积累资金投资的积极性等政策含义,以期为新疆\"三农问题\"有效解决提供坚实可靠的资本基础。 相似文献
18.
Conservation Agriculture (CA) is advocated as an agricultural innovation that will improve smallholder famer resilience to future climate change. Under the conditions presented by the El Niño event of 2015/16, the implementation of CA was examined in southern Malawi at household, district and national institutional levels. Agricultural system constraints experienced by farming households are identified, and in response the technologies, structures and agency associated with CA are evaluated. The most significant constraints were linked to household health, with associated labour and monetary impacts, in addition to the availability of external inputs of fertiliser and improved seed varieties. Our findings show that such constraints are not adequately addressed through current agricultural system support structures, with the institutions surrounding CA (in both Government extension services and NGO agricultural projects) focusing attention predominantly at field level practice, rather than on broader system constraints such as education and health support systems. Limited capacity within local institutions undermines long term efforts to implement new technologies such as CA. It is vitally important that the flexibility of farmers to adapt new technologies in a locally-appropriate manner is not closed down through national and institutional aims to build consensus around narrow technical definitions of a climate-smart technology such as CA. To enable farmers to fully utilise CA programmes, interventions must take a more holistic, cross-sectoral approach, understanding and adapting to address locally experienced constraints. Building capacity within households to adopt new agricultural practices is critical, and integrating healthcare support into agricultural policy is a vital step towards increasing smallholder resilience to future climate change. 相似文献
19.
The article reviews the development of smallholder farming in Central Asia's former Soviet republics. One of the striking features of the agricultural transition in Central Asia (and Commonwealth of Independent States [CIS] in general) is the dramatic shift, since 1992, from the predominance of large corporate farms to individual or family agriculture based on a spectrum of small farms. Evidence shows that individualization of agriculture is associated with the observed posttransition recovery in Central Asia (and in CIS in general) and that small family farms outperform the large enterprises. This clashes with the traditional philosophy of economies of scale and with the inherited view of small family farms as an undesirable aberration. We discuss the policies that helped smallholder farms in Kazakhstan, Kyrgyzstan, and Tajikistan and severely restricted their growth and development in Uzbekistan and especially Turkmenistan. 相似文献