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91.
Emily A. Botts Genevieve Pence Stephen Holness Kerry Sink Andrew Skowno Amanda Driver Linda R. Harris Philip Desmet Boyd Escott Mervyn Lötter Jeanne Nel Tammy Smith Fahiema Daniels Samuel Sinclair Warrick Stewart Jeffrey Manuel 《Conservation biology》2019,33(6):1235-1246
Systematic conservation planning is intended to inform spatially explicit decision making. Doing so requires that it be integrated into complex regulatory and governance processes, and there are limited instances where this has been achieved effectively. South Africa is a global leader in the application of conservation plans, the outputs of which are widely used for spatial planning and decision making in many spheres of government. We aimed to determine how conservation planning in the country progressed from theory to implementation, and to identify practical actions that enabled this transition, by assessing temporal trends in the characteristics of conservation plans (1990–2017, n = 94). Since 2010 conservation planning has entered an operational period characterized by government leadership of plans, administrative rather than ecological planning domains, decreasing size of planning units, increasing emphasis on end-user products, and scheduled revision of plans. Key actions that enabled this progression include transitioning leadership of plans from scientists to practitioners, building capacity within implementing agencies, creating opportunities to integrate plans in legislative processes, establishing a strong community of practice, adopting implementation-focused methods, and balancing standardization with innovation. Learning from this model will allow other countries, particularly those with a similar megadiverse, developing context, to operationalize conservation planning into spatial planning and decision making. 相似文献
92.
Academic understandings of environmental discourses are primarily based on global and national accounts, despite widespread acceptance of the local as an essential site of environmental action. Local water issues have been studied in a number of ways, including interviews and ethnographies that show the impacts of water scarcity, examine the role of mediating technologies, and provide diverse perspectives on governance. An overarching impression of key narratives and concerns at local scales, however, is lacking. In this paper, we examine water coverage in The Sowetan, a South African newspaper known for its distinctive voice, as a (albeit imperfect) proxy for local discourse. We identify key themes, location and scale, trigger events, actors, authors, and provide initial insights into the problem frames used in these texts. Our findings show distinct differences from the results of environmental media analyses at other scales, including strong individual citizen voices, emphasis on the politics of water, and rare use of language that accords with global environmental discourses; this also differs from results based on interviews and ethnographies at the local scale. Our findings raise important questions about the resonance of global discourse with local views and practices and how local discourses are produced, and suggest a need to more carefully examine the myriad ways of talking about justice and the environment at different scales and through different methodologies. 相似文献
93.
River basins provide a wide range of ecosystem services important for human well-being. Ecosystem functions and their value to humans have been thoroughly studied. However, the role of governance characteristics for the sustainable management of ecosystem services has been largely ignored up to now. To close this gap, this article introduces the latest modifications to a database building on the Management and Transition Framework (MTF) that serve to study the relationship between water governance and management systems and their performance with regard to impacts on ecosystem services. This comprehensive approach facilitates structured data collection and representation in order to analyze single case studies or compare case studies regarding the governance and management of water resources and associated ecosystem services. It allows the user to investigate whether certain water governance characteristics, such as stakeholder involvement or vertical integration of governance levels, are associated with a change in the management of ecosystem services or a measurable change in their state. A simplified case from South Africa shows how the database modifications allow addressing links between governance and management processes on the one side and ecosystem services and the way they are handled on the other side. Applying the MTF database leads to evidence-based insights into best practices as well as failed management approaches and interventions. This in turn provides knowledge that can be transferred from science to practice supporting sustainable governance of ecosystem services. 相似文献
94.
Mersie Ejigu 《Natural resources forum》2008,32(2):152-162
The past few years have seen a phenomenal rise in the production and consumption of biofuels and biodiesel at the global level. This development is of special significance to Africa, where about 550 million people (75% of the total population in Sub‐Saharan Africa) depend on traditional biomass (wood, charcoal, cow dung, etc.) and lack access to electricity or any kind of modern energy service. Derived from plants and agricultural crops, biofuels and biodiesel represent modern forms of bioenergy and more efficient use of biomass energy. Beyond efficiency, modern bioenergy offers tremendous opportunities to meet growing household energy demands, increase income, reduce poverty, and mitigate environmental degradation. In the African setting, energy and livelihoods security are indeed inseparable. This paper argues economic, social, and environmental benefits of modern bioenergy can be realized through a strategy that centres on smallholder production and processing schemes and pursuit of a livelihood approach to energy development. Such a scheme opens up new domestic markets, generates new cash incomes, improves social wellbeing, enhances new technology adoption, and lays the ground for rural economic transformation and sustainable land use. The paper concludes by underlining the vital importance of considering sound property rights and strategic planning of sustainable development as tools for sustainable energy and livelihoods security. 相似文献
95.
John J. Hidore 《Journal of the American Water Resources Association》1977,13(4):783-794
ABSTRACT: Drought has been a hazard in parts of Africa throughout historic times, and in all likelihood prior to that time as well. In recent years the hazard of drought has been increasing in frequency and areal extent. A drought that occured from 1968 to 1974 in Sub-Saharan Africa directly affected millions of people, and directly or indirectly cost the lives of tens of thousands of people. The mechanism involved in the widespread problem is the manner of adjustment of the human population to climatic cycles of short duration, in the face of rapidly growing human and animal numbers. A rapid collapse of the grasslands and an expansion of the Sahara Desert southward into more humid areas has resulted from the increasing pressure on the land from largely subsistance farming and herding. Present social, economic, and political conditions indicate that the process is going to continue to accelerate, affecting ever-increasing numbers of people in the Sub-Saharan Africa region. 相似文献
96.
The relationship between migration and deforestation in the developing world continues to receive significant attention. However beyond direct population increase, the precise mechanisms that operate within the intersection of migrant/host land rights remain largely unexamined. Where migrants are provided with land and rights by the State and/or local communities, how such rights are perceived by the migrants is of primary importance in their interaction with land resources, and in aggregate it impacts the development opportunities and environmental repercussions of migration. The authors analyze the operative aspects of land rights reception (as opposed to provision) by migrant populations, and the relationship between this reception and deforestation. The article examines a case in Zambia to analyze how tenurial constructs, emerging from the way rights are perceived by migrants, lead to the continued clearing of areas much larger than needed for cultivation, even when the arrangement appears counter‐productive in terms of land rights provision and labour allocation. While valuable policy efforts have focused on providing resource rights to migrants, how such rights are received and the relationship of this reception to resource management needs greater policy attention. 相似文献
97.
Innovative approaches to rural development: Moving from state-controlled towards market-based land reform 总被引:1,自引:0,他引:1
Frederico Neto 《Natural resources forum》2004,28(1):50-60
Among the world's poor, approximately 75% of those in extreme poverty live and work in rural areas and two‐thirds of them depend mainly on farming or farm labour for their livelihood. Policies to grant the rural poor secure access to land and water for irrigation — and to improve the economic efficiency of small‐scale agriculture — can thus play a critical role in the implementation of rural development strategies, including efforts to combat rural poverty. Since inadequate access to arable land is probably the most important cause of rural poverty, redistributive land reform is increasingly seen as crucial for socio‐economic development and poverty alleviation in many developing countries with substantial amounts of (unused) arable state land or (under‐utilized) large private landholdings. This article argues that market‐based land redistribution schemes, such as the one being implemented in South Africa, can be considered one of the most innovative approaches to land reform that have emerged over the last decade. These schemes thus provide a useful alternative to more conventional, state‐controlled land redistribution programmes. The article concludes, however, that when countries opt for market‐based approaches to land redistribution, the State still has an important role to play, without necessarily deciding which land parcels change hands. 相似文献
98.
江南水乡古镇旅游开发战略初探--浙江乌镇实证分析 总被引:21,自引:2,他引:19
我国长江以南地区分布着为数众多的水乡古镇,它们多以水建镇,以水成市,创造了人类与自然和谐相处的居住环境.具有较高社会学、经济学、历史学、古建筑学等方面研究价值。20世纪80年代以来,水乡古镇旅游日益受到人们青睐,并已成为华东地区旅游的特色品牌之一。然而,随着旅游的发展,一些问题也逐渐暴露出来。浙江乌镇历史悠久.人文荟萃,为浙江省历史文化名镇。其优美的人居环境、深厚的文化底蕴,体现了较高的资源品味;优越的地理区位、精品战略和高投人高产出战略的实施,使得乌镇旅游开发在较短时间内取得了巨大的成功,经济、社会效益显著.知名度迅速扩大,乌镇也因此成为旅游界一匹异军突起的“黑马”,其发展倍受国内外游客及历史文化界人士的瞩目。同时由于开发历史较短,乌镇旅游开发还存在着旅游产品单一、缺乏亮点和特色、社区参与不够、旅游设施难以满足旅游快速发展的需要等现实问题。鉴于此,对江南水乡古镇旅游开发战略进行了初步探讨。 相似文献
99.
Marine sediment toxicity tests are widely applied in monitoring programs, yet relatively little is known about the comparability of data from different laboratories. The need for comparability information is increased in cooperative monitoring programs, where multiple laboratories (often with variable skill levels) perform toxicity tests. An interlaboratory comparison exercise was conducted among seven laboratories in order to document the comparability of sediment toxicity measurements during the Bight'98 regional sediment survey in southern California. Sediments from four stations in Los Angeles and Long Beach Harbors were tested using a 10-day survival test of the amphipod Eohaustorius estuarius. All laboratories successfully performed the sediment test and associated reference toxicant test. Statistically significant differences were found in mean amphipod survival rates among some laboratories for the field-collected sediments, but there was little evidence of a consistent bias among laboratories. Although the reference toxicant test indicated a five-fold variation in test sensitivity among laboratories, these results were not accurate predictors of interlaboratory performance for the sediment tests. The laboratories demonstrated excellent concordance (Kendall's W = 0.91) in ranking the field-collected sediments by toxicity. Agreement on classifying the sediments into categories (nontoxic, moderately toxic, and highly toxic) based upon the percent of survival was best for highly toxic sediments. An analysis of test precision based upon the variance among replicates within a test indicated that the measured survival rate for a sample may vary by up to 12 percentage points from the actual response. 相似文献
100.
The value of indigenous knowledge in climate change mitigation and adaptation strategies in the African Sahel 总被引:6,自引:0,他引:6
A. Nyong F. Adesina B. Osman Elasha 《Mitigation and Adaptation Strategies for Global Change》2007,12(5):787-797
Past global efforts at dealing with the problem of global warming concentrated on mitigation, with the aim of reducing and
possibly stabilizing greenhouse gas (GHG) concentrations in the atmosphere. With the slow progress in achieving this, adaptation
was viewed as a viable option to reduce the vulnerability to the anticipated negative impacts of global warming. It is increasingly
realized that mitigation and adaptation should not be pursued independent of each other but as complements. This has resulted
in the recent calls for the integration of adaptation into mitigation strategies. However, integrating mitigation and adaptation
into climate change concerns is not a completely new idea in the African Sahel. The region is characterized by severe and
frequent droughts with records dating back into centuries. The local populations in this region, through their indigenous
knowledge systems, have developed and implemented extensive mitigation and adaptation strategies that have enabled them reduce
their vulnerability to past climate variability and change, which exceed those predicted by models of future climate change.
However, this knowledge is rarely taken into consideration in the design and implementation of modern mitigation and adaptation
strategies. This paper highlights some indigenous mitigation and adaptation strategies that have been practiced in the Sahel,
and the benefits of integrating indigenous knowledge into formal climate change mitigation and adaptation strategies. Incorporating
indigenous knowledge can add value to the development of sustainable climate change mitigation and adaptation strategies that
are rich in local content, and planned in conjunction with local people. 相似文献