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71.
In South Africa, interventions in communal rangelands proposed by most agriculture-sector institutions are still dominated by the belief that communal herders have little technical skills and by the tenets of “the tragedy of the Commons”, assuming that individual livestock keepers are selfish, norm free, and aiming at maximising short-term offtake and that there is no consistent management of the commons. In this study we show that practices of a diversity of livestock keepers on the Leliefontein Commons of Namaqualand are at odds with this viewpoint: access to rangeland and its use are structured by collective norms and concerns regarding both the sharing of resources and their long-term sustainability. We also show that part of the management of the commons relies on grazing practices which involve tacit and formalised technical knowledge that can be described and modelled. Livestock keepers assess the heterogeneity of the grazing quality of the commons. They are aware of the toxicity and unpalatability of some plants, of the way this differs according to the amount ingested and the availability of other forage, and of the variations of these two factors over seasons of grazing. They classify grazing areas and decide on daily grazing routes according to a complex set of criteria. Carrying capacity of each area is not considered as a fixed parameter but rather as a variable dependant on rainfall. Seasonal movements between areas are designed accordingly. These findings offer a new perspective for research agendas on technical models and extension measures for communal rangeland management particularly in arid and semi-arid areas.  相似文献   
72.
土壤侵蚀引起的农业非点源污染研究进展   总被引:22,自引:5,他引:22       下载免费PDF全文
土壤侵蚀引起的农业非点源污染是造成水体污染的主要污染源。详细介绍了近20年来土壤侵蚀引起的农业非点源污染的研究进展,包括污染物迁移过程、影响因素、预报模型以及防治措施等;提出了我国开展农业非点源污染的研究重点,包括侵蚀过程对非点源污染物运移和水质的影响,污染物运移的预测预报模型,全国统一的不同污染物危险性评价指标体系制定等。  相似文献   
73.
为全面贯彻落实中央领导和国家有关节约集约用地的要求,同时配合栖霞市争创山东省国土资源节约集约模范市,栖霞市国土资源局创新思路,积极适应新常态,走节约集约利用土地的内涵挖潜式路子,有效缓解了建设用地供需矛盾、有力保证了栖霞市经济社会的更好更快发展。  相似文献   
74.
When climate change policies are implemented in practice, they travel through the hands of a range of practitioners who not only mediate but also potentially transform climate interventions. This article highlights the role of a group of actors whose practices have so far received little attention in the study of climate change governance, namely the public servants who are responsible for the everyday implementation of national climate change policies and associated programmes on the ground. Situated at the frontline of the state and often engaging directly with citizens, these “interface bureaucrats” occupy a complex position in which they must balance their role as representatives of the state with the need to accommodate the pressures, interests and practical challenges associated with everyday policy implementation. In this article we examine how interface bureaucrats in Zambia seek to navigate this role as they go about implementing national climate change adaptation policies in practice, and what this means for the nature and outcome of these interventions. We identify key dilemmas of the interface bureaucrats in our study areas, namely (i) intervening with limited reach, (ii) implementing generic policies, and (iii) managing conflicting interests. We show how they address these dilemmas through highly pragmatic practices involving informal agreements with community members, discretionary adjustments of official policies, and negotiation of contested interventions. As a result, the nature and outcomes of climate change adaptation interventions end up differently from the official policies and the underlying governance interests of the central state. Our findings suggest a need for greater attention to the role of interface bureaucrats as everyday climate policy makers and point to the significance of pragmatism and compromise in the interaction between state actors and citizens in environmental interventions.  相似文献   
75.
The purpose of this paper is to examine how individuals define ethical consumption (EC) and then how they negotiate ethical consumption as they move from one country to another. The authors explore these questions by reporting on and interpreting the evolution of their understanding of EC and their own ethical consumption behavior, the EC practices that have endured over time and national contexts, the tensions they encountered in maintaining EC practices in these transitions and the adaptive strategies they used to manage those tensions. While there has been research on the tensions faced by individuals practicing EC, there has been a paucity of research investigating those tensions from a cross-country and longitudinal perspective. Moreover, although several studies have focused on EC purchase practices of specific goods (e.g., athletic shoes, fair-trade commodities), none has considered this question in the context of purchases of basic needs categories – food, water, energy, transportation and housing. Each of the three authors has been able to maintain his or her own personal consumption ethic in spite of living in different countries. Whenever consumption practices emanate from, and are imbedded within, a strong ethical framework of values that informs EC, each was able to make the necessary adjustments to overcome the obstacles and points of resistance across countries. Even in those situations involving considerable inconvenience and discomfort, each used adaptive strategies that allowed retention of their consumption practices. Among those strategies employed by the authors were choice of community in which to live, self-regulation and self-reliance.  相似文献   
76.
Young adults in the Global North occupy a contradictory environmental identity: they are purportedly more environmentally concerned than older generations, but are also labelled hedonistic consumers. Most studies have focused on young adults still residing in parental homes, neglecting that Generation Y (born between 1975 and 1991) has ‘grown up’. The consumption patterns and environmental implications of their newly established households demand scholarly attention. Through a large-scale household sustainability survey, conducted in Australia, we have uncovered important inter-generational differences in environmental attitudes and everyday domestic practices. We found that generational cohorts hold distinct environmental attitudes. Younger households were most concerned with climate change, and least optimistic about future mitigation. However, generational differences influenced everyday domestic practices in more complex ways. All households engaged extensively with those ‘pro-environmental’ practices that reflected established cultural norms, government regulations and residential urban form. For other pro-environmental practices there were clear differences, with Generation Y households being the least engaged. A widening ‘value-action gap’ was apparent across our sample population, from oldest to youngest. However, rather than reflecting Generation Y’s supposed hedonism, we argue that this gap reflects generational geographies: how lifecourse intersects with housing and labour markets and norms of cleanliness to shape everyday domestic practices. Our research illuminates the shortcomings of a one-size-fits-all approach to household sustainability. The young adult stage is a time of transition during which homes and independent lifestyles are established, and practices are altered or become entrenched, for better or worse.  相似文献   
77.
Australia's border enforcement strategies and immigration control policies operate in distant geographies, concealed from human rights groups, media and the public. From offshore detention to militarised maritime defence operations, Australia's exclusion of asylum seekers is increasingly dependent upon geographical processes that ensure asylum seekers do not have access to the state's systems of protection. This article explores a critically overlooked geopolitical strategy of mobility regulation that relies on processes simultaneously expanding geographies of control, while contracting spaces of rights. The outcome of these rapidly evolving bordering practices is the exaggeration of the distance separating asylum seekers from the state, suspending them within a space devoid of an operational system of rights, and emphasising a new and restructured maritime legal geography.  相似文献   
78.
Using the case of Berlin, this article examines civil society actors in relation to local bordering practices following the large number of refugee arrivals in 2015. Combining critical border, migration, and urban studies and adopting a Foucauldian lens, the article aims to illustrate to what extent civil society actors have challenged and transformed local bordering practices vis‐à‐vis refugees within a specific urban space. The analysis illustrates that civil society actors have created new spaces of inclusion for refugees and brought new political and normative challenges to the established notions of belonging. On the other hand, they have also reproduced bordering practices either by their integration into formal state structures or by reinforcing hierarchical categorizations and unequal power relations embedded in the notion of humanitarianism. Finally, the article argues that these de/re‐bordering practices of civil society actors should be understood in line with the constraints that established bordering processes and the existing political and structural dynamics placed on them.  相似文献   
79.
解佳  孙九霞  王学基 《地理研究》2020,39(7):1640-1653
随着道路旅行的兴起,中国背包客将涂鸦活动的阵地转移至道路和停泊点等非城市空间。背包客的道路涂鸦与城市涂鸦、景区涂鸦都存在着较大差别,它所具有的时空特殊性为剖析旅游过程中通道与停泊点的意义、理解旅游者如何参与地方生成、探索处于移动中的人群如何构建共同体提供了生动案例。本研究以川藏公路为案例地,采用移动民族志与多点民族志相结合的方法,探索背包客涂鸦作为空间实践的意义。研究发现,涂鸦实践使得川藏公路及其沿线的节点成为背包客旅程甚至人生经历的见证者,原本功能性、政治性的空间被改写成私人的、情感的空间,涂鸦实践还参与构建了一个后现代的流动新部落。因此,涂鸦重塑了川藏公路的空间意义,在川藏公路独特旅行文化的形成中扮演了重要角色。  相似文献   
80.
Land use is changing at accelerated rates in Taiwan, and illegal land use change practices (ILP) are regularly observed within conservation areas. For this reason, we map high-potential areas of ILP within the Soil and water conservation zone (SWCZ) as an aid for effective land management and conducted an exploratory analysis of explanatory variables to evaluate their variability within ILP hot spots. We used variables relevant to hot spots to develop a logistic regression model and identified seven statistically significant variables. We re-applied the logistic regression approach to produce spatially explicit predictions of ILP. High probability areas are distributed along the coastal regions, covering 26% of the SWCZ, and their major drivers are related to accessibility and topography. The results from this research provide relevant information on the major drivers of ILP and high-potential areas, which can support officials in monitoring efforts for better planning and governance within the SWCZ.  相似文献   
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