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1.
The relationship between population mobility and farming is complex and has been the focus of numerous studies. Despite differing perspectives on the subject, there is an increasing realization that migration sustains farming in many rural communities, but with contradictory effects. Notwithstanding this conclusion, there is a paucity of village level studies that explain the precise ways in which migration in its various forms affects the survival of small farms. This paper reports on the results of a village level study of migration and small farming in the Rio Grande Valley of Jamaica. Apart from highlighting the various ways in which migration affects small farming at the local level, the study confirms the contradictory impact of migration on small farming in this remote agricultural community. It is noted, however, that the net effect is positive and the capital and labour resources, which are made available as a result of migration, play pivotal roles in the survival of small-scale farming as an economic activity in the area.  相似文献   

2.
There has been particular interest in 'alternative' food over the last 10 years, with many policymakers and researchers throughout the Minority World following a growing number of consumers and producers in supporting organic farming and a host of 'alternative' food networks. To date, there has been a tendency for theory and policy to emerge somewhat divorced from the grounded practices and experiences of producer-suppliers themselves within these networks. Urging a shift from 'alternativity' to 'sustainability' as a more critical and valuable tool to analyse food networks, this paper draws upon in-depth ethnographic research with small-scale producer-supplier case studies in south Wales and southern Ontario. In so doing it explores often overlooked voices and stories within sustainable food discourses. Focusing on the value of farmer-led understandings and responses, the paper highlights important implications for policymakers and consumers and outlines future research on sustainable food networks.  相似文献   

3.
In Sub-Saharan Africa, efforts to formalize the artisanal and small-scale gold mining (ASGM) sector under legal frameworks and to improve its environmental and health practices have largely failed as a result of top-down policy measures that make change complicated and burdensome for low-resource miners. Using evidence from a case study of the ASGM sector within areas of Senegal, this article demonstrates that ASGM has become an important source of income for many traditionally agricultural rural populations. The findings point toward the embedded nature of ASGM within customary management structures in Senegal, and demonstrate that customary authority is an important component of ASGM operations and development, and should be recognized and integrated into innovative formalization policies and better practices initiatives.  相似文献   

4.
吴寅姗  刘云刚  周雯婷 《地理科学》2019,39(7):1072-1081
在社会建构视角下,边界并非固化的界线,各种社会力量亦在持续塑造着边界的功能与特性。采用深度访谈、实地调查和文本分析研究方法,从社会建构的视角,探讨了不同主体基于日常跨境实践对中英街边界的社会建构,以及在此基础上的边境空间管控应对策略。结果发现,在20世纪80年代改革开放背景下,中英街的边贸旅游经济发展为居民参与跨境小额贸易提供了契机,中英街居民的身份与水客的身份由此实现了高度的融合;而在20世纪90年代内地实行市场经济及香港回归的背景下,中英街边贸旅游经济衰落,中英街地区居民的身份与水客的身份逐渐分离。在此过程中,各主体响应边界管控政策变化,塑造了不同的边界生活空间。未来边界管控政策的制定与实施,需要以理解边界空间的历史和现状为前提。  相似文献   

5.
Shio Segi 《社会与自然资源》2014,27(12):1227-1241
In Southeast Asia, resource competition causes conflicts between small-scale and industrial fishers. This article focuses on interactions between small-scale and industrial fishers and the power dynamics that are expressed through their behaviors. Taking a Philippine fishing village as a case, this article shows that even under conditions of severe resource competition and in a context of antagonistic relationships, small-scale fishers may choose, as a survival strategy, to collaborate with illegal industrial fishers. It demonstrates that accounting for power differentiations and dynamics among actors is key to understanding this seemingly contradictory collaboration, one that will likely result, over the long run, in negative consequences for the sustainability of small-scale fishers’ livelihoods. In order to effectively control industrial fishers and mitigate conflict with small-scale fishers, better understanding of social–economic and sociopolitical relations is required.  相似文献   

6.
Small-scale livelihood projects are widely used in forest conservation and Reducing Emissions from Deforestation and Degradation (REDD)+ initiatives; however, there is limited information on how effective these projects are at delivering livelihood and conservation benefits. We explored local perceptions of the effectiveness of small-scale livelihood projects in delivering livelihood and conservation benefits in eastern Madagascar. Our results suggest that small-scale livelihood projects vary greatly in their ability to deliver livelihood benefits, and that the type of livelihood project (e.g., agriculture, beekeeping, fish farming, or livestock production) has a significant impact on which livelihood benefits are delivered. Many small-scale livelihood projects, regardless of project type, are perceived to contribute to forest conservation efforts. Our study highlights that small-scale livelihood projects have the potential to contribute to both improved livelihoods and enhanced forest conservation, but also illustrates the need for more information on the factors that lead to project success.  相似文献   

7.
阐述了近年来出现的破纪录高温现象,列举了全球暖化的实例证据;指出了影响全球气温变化的重要事件;从温室效应方面讨论地表温度变化和全球暖化问题;从南太平洋海平面的变化来证明全球暖化是否存在的问题;从热岛效应出发论证了全球暖化与土地利用间的关系;用实例和历史数据讨论有关全球暖化的6个威胁问题.提出了几个值得深思的问题,认为很难令人相信全球暖化有愈来愈烈的趋势.全球暖化是否存在?目前的资料并不充分.全球暖化与热岛效应的影响有着密切的关系,气候变迁的灾难说法尚有许多疑义.  相似文献   

8.
Small-scale spatial events are situations in which elements or objects vary in such a way that temporal dynamics are intrinsic to their representation and explanation. Some of the clearest examples involve local movement, from conventional traffic modeling to disaster evacuation where congestion, crowding, panic, and related safety issues are key features. We propose that such events can be simulated using new variants of pedestrian model, which embody ideas about how behavior emerges from the accumulated interactions between small-scale objects. We present a model in which the event space is first explored by agents using ‘swarm intelligence’. Armed with information about the space, agents then move in unobstructed fashion to the event. Congestion and problems over safety are then resolved through introducing controls in an iterative fashion, rerunning the model until a ‘safe solution’ is reached. The model has been developed to simulate the effect of changing the route of the Notting Hill Carnival, an annual event held in west central London over 2 days in August each year. One of the key issues in using such simulation is how the process of modeling interacts with those who manage and control the event. As such, this changes the nature of the modeling problem from one where control and optimization is external to the model to one where it is intrinsic to the simulation.  相似文献   

9.
The paper focuses on information flows and the need for change in cottage industries in rural Indonesia. The context for small-scale business entrepreneurs has changed dramatically during the last decade of economic liberalisation and crisis. Emerging market opportunities, as well as national and international competition, now challenge indigenous businesses in their different geographical settings, and new information is indispensable for survival and growth. The principal question in the paper is whether small-scale agribusiness entrepreneurs are able to identify and utilise existing knowledge for the purpose of improving their competitive strength. By using case studies taking an actor's perspective, the empirical data give insight into the small entrepreneurs' perceptions of their business environments and the hindrances to innovation. Theories on dual economies, path dependence and information asymmetry form the basis for analysing two cases of Javanese agribusiness. The paper concludes that a gap prevails between "traditional" and "modern" sectors of this society, and that cottage industries have much to gain from linking up with external agencies. Regional universities may play a crucial role in enhancing information flows and disseminating competence.  相似文献   

10.
Agricultural shows in Australia are typically depicted as celebrations of colonisation and scientific and technical modernisation in food production. The historical focus of shows is on competition to maximise perceived quality and yield of goods, from wheat to cattle. Through these frameworks, shows are often understood as supporting industrial-scale agricultural practices that promote an ecologically-blind approach to food production. However, we suggest that competitions in contemporary agricultural shows play a role in contesting the limits of such anthropocentric thinking. We focus on a hitherto unexplored aspect of agricultural shows: small-scale growers who exhibit produce in their annual local show competitions. Through a case study drawing on interviews with exhibitors and judges, combined with participant observation at the 2012 Royal Canberra Show, we highlight the complex relationships between people, place and more-than-humans in this unique cultural site. In so doing, we suggest that exhibiting in the show can intensify urban and peri-urban small-scale producer engagement in practices of ‘tinkering’. This facilitates embodied encounters with the limits of both human mastery and those of the materiality of non-humans involved in food production. Through the ongoing, adaptive processes of tinkering encouraged by such competitions, we suggest that exhibiting in agricultural shows can support the growth of ecologically informed, place-based understandings of the food system and challenge binaries of the rural/city divide.  相似文献   

11.
Flagship buildings are promoted as a good strategy to stimulate economic development. Pushed by a range of actors, “best practice” examples are being copied from place to place around the globe. Flagship buildings are accompanied by a discourse of place branding that stresses a need for cities to improve their attractiveness. Drawing on this discourse and ongoing discussions on deterritorialization and reterritorialization in urban and economic geography, the author argues that there is an overly deterritorialized approach to flagship buildings in the place-branding literature. Using a conceptual framework inspired by the reterritorialization debate, she introduces the concept of “flagship space,” emphasizing a dualism in place branding encompassing both deterritorialized and territorial processes that in interplay create best-practice examples. The empirical analysis examines the development of five flagship hotels in Sweden. The author concludes that the five hotels have both created and are constantly reproducing their statuses as flagship developments. However, the creation and reproduction of status is not only upheld by the operators of the hotels but is also a joint effort of actors in the local community. Through these processes and practices the understanding of the hotels is broadened from merely being flagship buildings to creators of flagship space.  相似文献   

12.
This paper examines the environmental impacts of small-scale gold mining in Ghana, and prescribes a series of recommendations for improving environmental performance in the industry. Since the enactment of the Small Scale Gold Mining Law in 1989, which effectively legalized small-scale gold mining in the country, industrial operations, collectively, have made important contributions to national gold output, foreign exchange earnings and employment. Accompanying this pattern of socio-economic growth, however, have been increased environmental complications – namely, mercury pollution and land degradation. The Ghanaian Minerals Commission has been burdened with most of the jurisdictional responsibilities related to small-scale mining, but with a staff of only 35–40 people working with a pool of highly obsolete research resources, it is clearly incapable of facilitating sufficient environmental improvement on its own. It is concluded that marked environmental improvements can only be achieved if: (1) assistance is provided to the Minerals Commission from local governmental bodies and academic units; (2) industry-specific environmental management tools and strategies are designed and implemented; (3) concerted effort is made to prospect for deposits suitable for small-scale gold mining, a key to preventing unnecessary exploration; and (4) a nation-wide industrial mercury study is commissioned, and a mercury retorting programme is implemented.  相似文献   

13.
The article examines an alternative food network evolution in the post-communist context in Czechia in general and farm shop developments in particular. The study is based on semi-structured interviews with farm shopkeepers operating in Czechia. The results revealed that the development of the farm shop network was significantly shaped by the communist past of the country. While consumers’ demand for quality food contributed to the initiation of developments in local food movements such as farm shops in Czechia, the inconvenient structure of the farming sector, comprising a limited number of small-scale farmers, hindered the development. Although the farm shops usually operate as middlemen by reselling goods produced by a range of farmers, farm shopkeepers expressed significant awareness of the sustainability principles of the local food concept and dissociated themselves from unethical practices of large retailers. Nevertheless, the author finds that the local concept is used in a flexible manner to meet customers’ demands. Despite obstacles faced by farmers when developing their own farm shops, there is significant potential in ‘Czech-type’ farm shops operating solely as retailers. However, the author concludes that the threat of the diversion from the sustainability principles of the local food concept should not be neglected.  相似文献   

14.
The soil conservation campaigns that have been a prominent feature of Jamaican agricultural policy since the 1950s are frequently presented as having failed to ameliorate the problem of soil erosion in hillside agriculture. A case study of a small farming community in the Blue Mountains explores the development of the soil conservation practices currently employed by farmers. The use of trash barriers in carrot farming is described and the origins of this technology and its subsequent adaptation are considered. The study concludes that extension interventions and government policy have influenced the development of current soil conservation practices; practices which have their roots in indigenous techniques. Other factors such as the adaptation of trash barriers to suit local conditions and their importance in soil fertility management also play a role in their widespread use in the study area. The study demonstrates that to understand the process of technical change in farming communities, it is necessary to consider a range of factors, external and internal, technical and social, that have over time influenced farmers' decision making.  相似文献   

15.
The shoreline of beaches in the lee of coastal salients or man-made structures, usually known as headland-bay beaches, has a distinctive curvature; wave fronts curve as a result of wave diffraction at the headland and in turn cause the shoreline to bend. The ensuing curved planform is of great interest both as a peculiar landform and in the context of engineering projects in which it is necessary to predict how a coastal structure will affect the sandy shoreline in its lee. A number of empirical models have been put forward, each based on a specific equation. A novel approach, based on the application of artificial neural networks, is presented in this work. Unlike the conventional method, no particular equation of the planform is embedded in the model. Instead, it is the model itself that learns about the problem from a series of examples of headland-bay beaches (the training set) and thereafter applies this self-acquired knowledge to other cases (the test set) for validation. Twenty-three headland-bay beaches from around the world were selected, of which sixteen and seven make up the training and test sets, respectively. As there is no well-developed theory for deciding upon the most convenient neural network architecture to deal with a particular data set, an experimental study was conducted in which ten different architectures with one and two hidden neuron layers and five training algorithms – 50 different options combining network architecture and training algorithm – were compared. Each of these options was implemented, trained and tested in order to find the best-performing approach for modelling the planform of headland-bay beaches. Finally, the selected neural network model was compared with a state-of-the-art planform model and was shown to outperform it.  相似文献   

16.
Public participatory geographic information systems (PPGIS) have been advanced as a means to include those who have been traditionally excluded from numerous place-specific governance activities, including planning and policymaking and as a way to resolve some of the long-standing tensions between critical traditions in human geography and the ever-expanding field of GIS. Despite the rapid adoption of participatory GIS by academics, government officials, and planning professionals, there are few guidelines of best practices for PPGIS researchers and practitioners to draw on and little effort has been made to understand how and in what ways PPGIS efforts are (or perhaps are not) effective. This article contributes to these important debates by evaluating the geography of participation in a recent participatory planning project undertaken in Muncie, Indiana. Using the mapped information that was generated from a series of public meetings, we have identified the presence of significant spatial bias in the process of participation that affected the resulting plan. This was an unexamined source of bias during this process and an example of why any emerging conversations about the best practices for PPGIS must include a consideration of the geography of participation.  相似文献   

17.
This paper explores the environmental knowledge of small-scale rural landholders and comments on the implications of this for environmental policy. The paper draws on conceptualisations of knowledge as 'know what', 'know why', 'know how' and 'know who', recognises a distinction between tacit and codified environmental knowledges and highlights the need to consider the politics of knowledge surrounding environmental issues. Both quantitative and qualitative data are reported, and are derived from structured interviews with 30 small-scale landholders who were participants in a nature and landscape conservation initiative – the Landscape Heritage Scheme – within South Devon, England. These data are used to explore the place of environmental concerns within the land management objectives of respondents; the nature and extent of their environmental knowledge; how a range of factors alongside their environmental knowledge shaped the environmental practices of respondents; and the politics of knowledge associated with the Landscape Heritage Scheme. The paper suggests that small-scale landholders should be of interest to environmental policy, prioritising environmental objectives in their land management, being relatively knowledgeable about the environment and highly responsive to environmental advice and financial incentives that support environmental management. A case is made for developing research in this area, given ongoing processes of rural demographic change and the rising importance within this of an increasingly diverse landholding population.  相似文献   

18.
自然保护区是生态旅游最主要的实践场地。在可持续发展的大背景下,全球各地大量的自然保护区开展了生态旅游实践探索,并且取得了丰富的实践经验。生态旅游在自然保护区实践中的主要经验包括:建立生态旅游认证体系,成立促进社区参与的管理机构和构建生态旅游实践标准。本研究中以辽宁省的白石砬子、医巫闾山和海棠山三个国家级自然保护区为例,采用问卷调查、田野调查、访谈等方法对当地居民、游客、景区工作人员、自然保护区工作人员、当地媒体等群体进行调查,获取一手资料。通过综合分析发现,当前生态旅游在自然保护区可持续发展的阻碍因素包括两大方面,第一个方面是普遍性阻碍因素,具体包括:(1)环境教育的缺失;(2)社区参与的不足;(3)游客管理的不规范;(4)自然保护区管理机构与当地政府的矛盾冲突(条块矛盾)。第二个方面的阻碍因素是由于每个自然保护区具体的自然环境、社会文化等不同而引起的千差万别的各个自然保护区生态旅游发展的具体性阻碍因素。针对生态旅游在自然保护区实践面临的阻碍因素,本研究提出了五项措施:(1)正确认识并且尽力满足利益相关者的合理利益诉求;(2)完善自然保护区生态旅游的协调机制体系;(3)增加自然保护区管理机构的社会效益职责;(4)自然保护区生态旅游经营权、监督权分离;(5)加强对自然保护区生态旅游游客的环境教育。  相似文献   

19.
中国泥石流形成环境剖析   总被引:2,自引:0,他引:2  
丰富的松散固体物质、充沛的水源和陡峻的地形,作为泥石流形成的三个基本条件,已得到学者们的认同。就本质而言,这三者可归纳为能量和物质两大因素。本文从中国泥石流区域分布着眼,从不同尺度的自然环境因素和人为活动,探讨中国泥石流形成发展的基本规律。研究结果表明,大尺度的区域地质背景、大地貌单元和犬气候系统是控制泥石流形成发育的主导因素;不稳定斜坡因子、小尺度水文气象因子、流域形态因子、森林植被因子等,在大尺度因素的基础上,对泥石流的形成有重要影响;历史上,特别是近期人类经济活动对环境的不良影响,加剧了泥石流的发展。泥石流灾害非单一因子所致,而是诸多因子综合作用的结果,是山地环境退化的产物。泥石流活动具有开放性、内外营力作用的共同性以及自然因素和人为因素的复合性这三大特点。  相似文献   

20.
曹妃甸滨海湿地生态系统支持服务价值空间分异研究   总被引:1,自引:1,他引:0  
基于条件价值法和随机效应logit模型对曹妃甸湿地生态系统支持服务价值进行了评估,并应用距离衰减模型对支持服务价值的空间演化和区域差异进行了研究。结果表明,在曹妃甸滨海湿地生态系统支持服务的构成要素中,湿地植被恢复对支持服务保护行为选择的影响效应最高,其次为湿地面积恢复影响效应,而生物多样性保护的影响效应最低;根据随机效应logit模型得到的2个滨海湿地生态系统支持服务保护方案每年可分别产生人均44.54元和46.57元的经济价值,该价值作为支持服务的“源价值”会随着与曹妃甸滨海湿地之间空间距离的增加而呈现出逐渐衰减的变化;不同空间范围下支持服务价值的衰减过程存在显著差异,空间范围越小,价值的衰减速率越快;支持服务价值依据衰减过程构建经济管辖范围,经济管辖范围与行政区边界不重合,同一行政区内的支持服务价值仍存在明显差异。  相似文献   

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