首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   68篇
  免费   2篇
测绘学   5篇
大气科学   42篇
地质学   10篇
综合类   1篇
自然地理   12篇
  2021年   3篇
  2020年   2篇
  2019年   6篇
  2018年   2篇
  2017年   10篇
  2016年   6篇
  2015年   7篇
  2014年   14篇
  2013年   16篇
  2012年   2篇
  2011年   1篇
  2010年   1篇
排序方式: 共有70条查询结果,搜索用时 15 毫秒
51.
Indonesia has turned its alleged role as global leader of land-based carbon emissions into a role as a global trailblazer exploring modalities for Reducing Emissions from Deforestation and Forest Degradation (REDD+). REDD+ readiness is largely about improving forest governance, but this itself is a multilayered concept. This article analyses how the processes and practices of REDD+ readiness are leading to various forest governance reforms in Indonesia. We analysed six dimensions of REDD+ readiness progress over the past six years and the way these interact with land tenure reform and land-use planning. We found evidence that (1) tenure issues are taken more seriously, as evidenced by the development of social safeguard mechanisms and efforts to accelerate the gazettement of forest boundaries, although a constitutional court recognition in 2013 for customary forest management is, however, yet to be operationalized; (2) spatial planning relates forests more clearly to other parts of the landscape in terms of compliance with Nationally Appropriate Mitigation Actions (NAMAs) commitments; and (3) the forest and peatland conversion moratorium initiative led to a revamping of forest management. Despite progress, there are still major obstacles to full REDD+ implementation in Indonesia. The discussion focuses on the weaker part of readiness and possible ways forward.  相似文献   
52.
Norwegian funded REDD+ projects in Tanzania have attracted a lot of attention, as has the wider REDD+ policy that aims to reduce deforestation and degradation and enhance carbon storage in forests of the developing countries. One of these REDD+ projects, managed by WWF Tanzania, was criticised in a scientific paper published in GEC, and consequently in the global media, for being linked to attempted evictions of communities living in the Rufiji delta mangroves by the Government of Tanzania, allegedly to make the area ‘ready for REDD’. In this response, we show how this eviction event in Rufiji mangroves has a history stretching back over 100 years, has nothing to do with REDD+ or any policy changes by government, and is not in any way linked to the work of any WWF project in Tanzania. We also outline some of the broader challenges faced by REDD+ in Tanzania.  相似文献   
53.
Production of commodities for global markets is an increasingly important factor of tropical deforestation, taking over smallholders subsistence farming. Measures to reduce deforestation and convert shifting cultivation systems towards permanent crops have recently been strengthened in several countries. But these changes have variable environmental and social impacts, including on ethnic minorities. In Vietnam, although a forest transition – i.e. shift from shrinking to expanding forest cover – occurred at the national scale, deforestation fronts and agricultural colonization for commodity crops – a.o. coffee – still dominated the Central Highlands plateaus. Previous studies suggested that the dominant land use changes in that region were on the one hand the acquisition and conversion of agricultural lands to perennial crops for external markets by capital-endowed Kinh households – the majority ethnic group in Vietnam – and on the other hand the corresponding displacement of poor households of ethnic minorities relying on shifting cultivation towards the forest margins. This study tested this hypothesis by using remote sensing to analyze land use and cover changes and deforestation trajectories in the coffee-growing area in Dak Lak and Dak Nong provinces over 2000–2010. Land use changes were linked with socioeconomic dynamics using secondary statistics and spatial modelling. Net deforestation reached ?0.31% y?1 of the total area between 2000 and 2010. Deforestation was indeed mainly directly caused by shifting cultivation for annual crops, but this was partly driven indirectly by expansion of coffee and other perennial crops over agricultural lands. Displacement of shifting cultivation into the forest margins, pushed by market crops expansion, was the spatial manifestation of the marginalization of local ethnic minorities and poor migrants, pushed by capital-endowed migrants. This marginalization is a long-standing process rooted in the colonization and development strategy for the highlands followed since colonial times. Over the late 2000s, rapid deforestation was strongly reducing the benefits of national-scale forest recovery, and might shift the country back to net losses of natural forest. Implications for policies that may affect deforestation are discussed.  相似文献   
54.
In Vietnam, initial programs to Reduce Emissions from Deforestation and Forest Degradation (REDD+) have proliferated through international finance and new governance regimes for climate change mitigation. National capacity and legal frameworks have been adjusted to make the country eligible for REDD+ financing. In some local areas, activities have been implemented to ‘produce’ carbon credits intended for the international voluntary carbon market. Through a case study of a pilot REDD+ project in the Central Highlands of Vietnam, we examine how REDD+ has intersected with property rights institutions and agrarian change to influence changing property relations and commodity markets. Our findings show that REDD+ implemented through state and local institutions has articulated with the local political economy to coproduce conditions that embody local norms, needs, and desires. Specifically, local actors negotiate state-sanctioned tenurial instruments used for REDD+ governance, not for the purposes of carbon sequestration but instead in order to reassert their rights to land and forest for the cultivation of boom crops—the antithesis of REDD+ objectives. In the fine balancing act of adjusting local forestland holdings, REDD+ implementation has effectively facilitated increased opportunities for upland villagers to strategically claim land titles from local political authorities in the form of communal land certificates for forests called ‘Red Books’. In securing communal Red Books, villagers redefine or co-constitute the purpose of REDD+ to secure land for cash crop and commercial timber production. As with other forms of environmental governance, REDD+ is thus co-constituted locally in line with state and local institutions and histories and present day realities.  相似文献   
55.
Swidden agriculture is often deemed responsible for deforestation and forest degradation in tropical regions, yet swidden landscapes are commonly not visible on land cover/use maps, making it difficult to prove this assertion. For a future REDD+ scheme, the correct identification of deforestation and forest degradation and linking these processes to land use is crucial. However, it is a key challenge to distinguish degradation and deforestation from temporal vegetation dynamics inherent to swiddening. In this article we present an approach for spatial delineation of swidden systems based on landscape mosaics. Furthermore we introduce a classification for change processes based on the change matrix of these landscape mosaics. Our approach is illustrated by a case study in Viengkham district in northern Laos. Over a 30-year time period the swidden landscapes have increased in extent and they have degraded, shifting from long crop-fallow cycles to short cycles. From 2007 to 2009 degradation within the swidden system accounted for half of all the landscape mosaics change processes. Pioneering shifting cultivation did not prevail. The landscape mosaics approach could be used in a swidden compatible monitoring, reporting and verification (MRV) system of a future REDD+ framework.  相似文献   
56.
Financing REDD+ is complex, due to the need to seek answers not only to the question of who should finance REDD+, but also who should benefit from it. This paper examines the perceptions of REDD+ stakeholders in Brazil, Indonesia and Vietnam on different aspects of financing: who should finance REDD+ and who should receive REDD+ benefits for what. Our findings show these issues are political, driven by economic considerations at national level and – despite the narrative of inclusive, participatory decision making – are largely determined by governments. Lack of finance was thereby not always considered by national policy actors to be the most significant challenge during 2010–2019; rather other issues – like lack of knowledge on REDD+ by relevant actors; ineffective coordination between state agencies, the private sector and civil society; unclear tenure rights; ineffectively addressing the main deforestation drivers; low law enforcement capacity; and unclear benefit-sharing mechanisms – have also been perceived to impede REDD+ implementation and payment distributions.  相似文献   
57.
Successful efforts of indigenous groups to reduce emissions from deforestation and forest degradation in developing countries (REDD+) will likely vary with how the initiatives are designed and implemented. Whether REDD+ initiatives are carried out by national governments or decentralized to sub-national or project-level institutions with a nested approach could be of great consequence. I describe the Suruí Forest Carbon Project in Amazonian Brazil, one of the first REDD+ pilot projects implemented with indigenous people in the world. I emphasize (1) how enfranchisement of community members in the policy-planning process, fund management, and carbon baseline establishment increased project reliability and equity, and (2) how the project's quality would have likely been diminished if implemented under a centralized REDD+ scheme.

Policy relevance

This article explores a decentralized REDD+ intervention established in an indigenous land in Brazil. It expands the theoretical discussions on REDD+ governance and highlights how centralized REDD+ programmes are likely to be less effective than project-level interventions assisted by NGOs in terms of social benefits and community engagement. Additionally, the case study described can serve as reference for the design of critical social and technical components of REDD+.  相似文献   

58.
One of the most significant impacts of the United Nations Framework Convention on Climate Change (UNFCCC) has been the establishment of a participatory process for Reducing Emissions from Deforestation and Forest Degradation (REDD+). We analyse the case of Brazil, the country whose land-use emissions from deforestation and forest degradation have declined the most. Through semi-structured interviews with 29 country policy experts – analysed in full text around 7 categories of activities that existing literature identifies as central elements of an effective governance system – we find weak links between the international REDD+ system and what actually happens on the ground inside Brazil. The greatest weaknesses are rooted in the absence of any formal learning system, which prevents higher-level efforts from obtaining useful feedback from lower-level entities responsible for implementation. Analytically our approach is rooted in the idea of ‘experimentalist governance’ in which local policy experiments map the space of what is possible and effective with transformative land policy. These experiments provide information to broader international initiatives on how local implementation shapes the ability and strategy to reach global goals. The Brazilian experience suggests that even when international funding is substantial, local implementation remains a weak link. REDD+ reforms should focus less on the total amount of money being spent and much more on how those funds are used to generate useful local policy experiments and learning.

Key policy insights

  • A nascent system of experimentalist governance to implement REDD+ is taking shape in Brazil. However, the potential for experimentalism to improve policy reforms within Brazil is far from realized;

  • Experimentalist problem-solving approaches could have a big impact on REDD+ with stronger incentives to promote experimentation and learning from experience;

  • Reforms to REDD+ incentive schemes should focus less on the total amount of money being spent and more on whether those funds are actually generating experimental learning and policy improvement – in Brazil and in other countries struggling with similar challenges.

  相似文献   
59.
Carbon markets have gained traction worldwide as an ostensibly win–win solution to climate change, providing low-cost emission reductions in the Global North and sustainable development in the Global South. However, sustainable development and livelihood co-benefits have largely failed to materialize in a range of carbon offset projects, particularly those in forest communities. While some scholars explain this failure as an outcome of fundamental tradeoffs between market efficiency and sustainable development, others argue that institutions of common property land tenure can resolve tradeoffs and generate important co-benefits for local communities. Using a political ecology approach, integrating insights of Karl Polanyi and Noel Castree on the commodification of nature and evidence from a carbon forestry project in Chiapas, Mexico, this article grapples with the ways in which carbon market requirements shape forest governance within common property tenure arrangements. I argue that the centralization of forest governance and decision making into the hands of project implementers and brokers, the necessity for legible land rights and boundaries, and the technical requirements for measurement, calculation, and monitoring of carbon have reshaped forest governance in ways that have undermined the social and ecological benefits often associated with common property management schemes. This research therefore demonstrates that so-called tradeoffs between market efficiency and equitable sustainable development goals may not be inherent to carbon forestry and calls into question the reliance on disembedding market mechanisms for climate change mitigation in forest ecosystems. As such, this work has important implications for REDD+.  相似文献   
60.
The Reduction of Deforestation and Forest Degradation initiative (REDD+) was initially hailed widely as a smart and cost-effective way to mitigate climate change and has moved quickly compared to other strands of the United Nations Framework Convention on Climate Change (UNFCCC) negotiations. Much of the initiative’s original appeal – and a good deal of subsequent controversy around it – relates to framing the world’s tropical forests as carbon sinks and compensating developing countries that manage to reverse or avoid deforestation. REDD+ negotiations can thus be seen a site where the standard divisions between Annex 1 and non-Annex 1 (‘developed’ and ‘developing’) were being challenged and interrogated by the negotiating parties and the broader network of actors around the climate regime. This article suggests that such complex and changing global governance policy fields need to be analysed as ‘places’ in their own right, populated by actors engaged in field-specific power relations that may not reflect international hierarchies or power relations manifested in other international settings. Based in a unique set of interviews supplemented by primary data analysis, this article unpacks the power relations of REDD+ negotiations by examining how those involved seek to assume competence, designate and recognize leadership, and shape outcomes. In tracing the dynamics of claiming competence, the ‘competition’ between two disciplinary milieus around forests as an international policy object and also delegates’ shifting between reliance on expert knowledge and political ‘know-how’ in the negotiations themselves are identified. To understand the politics of recognition – that is to have a claim to competence or position acknowledged by others – the perceived qualities and resources of recognized leadership are examined and the absence of global superpowers amongst REDD+ leadership is problematized and discussed. Finally, in terms of wielding influence over outcomes, the fate of two quite similar ideas – one that has become incorporated into REDD+ methodology and another that is failing to be – further illustrate how the field is marked by internal power practices and that not all actors are equally well-positioned to achieve desired outcomes.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号