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1.
塔里木河下游已经干涸断流多年,其"绿色走廊"濒临消失.自2000年5月至2001年11月,先后3次实施向塔里木河下游输水,使下游的水文状况得到了改善,生态得到了一定程度恢复.根据塔里木河下游3次应急输水的有关资料,在输水过程的分析与模拟方面进行了研究,重点是第2次输水过程的分析模拟.从流量沿程损失率及水头前进速度出发,模拟了历次输水的流量沿程分布、输水距离、输水历时及输水水量,为评价输水的水文效应及选择适当的输水方案提供了初步依据. 相似文献
2.
《Geoforum》2017
This article examines the relationship between the human right to water and indigenous water rights as articulated in the legal strategies of indigenous Yaqui (Yoemem) leadership in Mexico, and in the jurisprudence of the Inter-American Human Rights System. Accelerated urban growth and climate change in the area of study are rekindling historical water conflicts between rural indigenous communities and state authorities encouraging urban development. This configuration is not unique to Northwestern Mexico and, thus, offers an instructive case for exploring contradictions and alignments between indigenous right claims and the human right to water. This article addresses the following questions: What role does the human right to water play in the competing claims of state authorities and indigenous Yaqui leadership in Mexico? To what extent can the human right to water be reconciled with the collective rights of indigenous peoples? And in particular, what can be learned from international jurisprudence in this regard? Through content analysis of legal documents and media sources I show that even when Yaqui claims over water are advanced in the arena of international human rights, the human right to water does not have a primary role in framing their demands. In fact, I show that the human right to water was primarily mobilized to uphold rural-to-urban water transfers and undermine indigenous opposition to large-scale infrastructure development. This article produces new empirical knowledge to contribute to scholarship examining what a human right to water means in practice. This line of research is particularly timely as the human right to water becomes institutionalized in the context of growing public debate and legal discussions on collective indigenous rights. 相似文献
3.
Local groundwater governance in Yemen: building on traditions and enabling communities to craft new rules 总被引：1，自引：1，他引：0
Taha Taher Bryan Bruns Omar Bamaga Adel Al-Weshali Frank van Steenbergen 《Hydrogeology Journal》2012,20(6):1177-1188
Local groundwater management in Yemen and the means by which stakeholders can work together to improve water governance are discussed. In the last few decades the discourse on groundwater management in Yemen has increasingly been cast in terms of crisis, triggered by rapidly declining water tables around cities and in the main agricultural areas. However, in some places in Yemen, communities have responded by implementing local rules that have reduced conflict and provided more reliable and equitable access to water. This trend towards development of local groundwater governance is described, and could make a major contribution in realizing the goals of national water-sector policies and strategies. Twenty-four cases have been identified from different parts of the country and five cases are presented in detail. The article discusses how the process of local management could be nurtured and how it could contribute to rebalancing water use in several parts of Yemen. 相似文献
4.
This paper examines a Rajasthan (India) drinking water supply project that relied on hybrid governance reforms in its original design. Decentralization and marketization, combined with a participatory approach, were intended to facilitate an empowering shift in state-citizen relationships. Paying citizens were expected to make quantity and quality demands of the state as consumers, not welfare beneficiaries. Research on the project 3 years after its completion revealed that although payment for water and community participation were intended to compel the state to provide clean water, they failed in this regard. The problem of an unreliable state supply was solved through small scale privatization, a decision ‘independently’ reached at the local scale, but one that served to further undermine the state’s ability to provide clean water.In this paper, we trace the shifts in regulation that evolved in the post-project phase at both the state and village scale that resulted in the delivery of contaminated water. Ethnographic research indicates that community participation was introduced as a set of institutions that would govern how villagers interacted with the state and its water supply, but villagers altered community participation by introducing reforms in water governance as a way of coping with an unresponsive state and increased work burden. Community participation evolved in contradictory ways as the impacts of neoliberal environmental governance were felt. The paper contributes to understandings of neoliberalization processes’ local impacts by analyzing their ongoing hybridization at multiple scales. It further calls into question foundational notions that community participation in resource governance is the appropriate solution to drinking water supply. 相似文献
5.
In order to counter water shortages in the agricultural regions along the lower Volga and in Kazakhstan and Central Asia and to alleviate falling water levels in southern seas, the Soviet Union proposes to transfer substantial quantities of water south from its northern Arctic-flowing rivers. We describe the background to these proposals, the need for greater agricultural production in the Soviet Union, current irrigation practice, and the development of schemes for large-scale water transfers. We discuss the Soviet philosophy of the transformation of nature, the problems encountered in implementing irrigation schemes, and the likely time scale of larger water transfers. The Soviet authorities consider the transfers essential. Even if the efficiency of existing irrigation schemes is improved, demand will surpass supply in many southern agricultural regions within the next 10 to 15 years. Work is to proceed on the first of the second, the Siberian scheme, is unlikely to be taken until any problems encountered in the implementation of the European scheme are assessed. Finally, we consider the potential impact of the diversions. There will certainly be local ecological and environmental consequences and it is considered that the net impact will, on balance, be adverse. There is also concern that the diversion of water away from higher latitudes may affect the Arctic ice cover and, possibly, global climate. 相似文献
6.
Sam Scott 《Geoforum》2007,38(4):655-676
Research into skilled migrant communities tends to emphasize the grounding of identities through transnationalism and mobility. Less research has been conducted into how skilled migrants actually ground their identities within the city through everyday social networks. The paper addresses this imbalance by examining the changing significance of British voluntary and community organisations (VCOs) in Paris, France. Combining qualitative and quantitative data, findings show local migrant networks to be important focal points for the British even though migrants’ lives may increasingly be transnational in orientation. The research also shows that in situ social networks are evolving. Specifically, traditional forms of elite expatriate communality are not as omnipotent as they once were, with the popularity of some high-profile British VCOs in Paris declining over recent decades. The paper argues that the link between social dynamism and communal morphology helps explain this shift: as British middle-class lifestyles have fragmented, and as the British migrant population in Paris has grown in scale and scope, so the range of VCOs and associated informal networks has grown. Whilst some skilled migrants still embed within traditional expatriate organisations, Britishness is increasingly grounded elsewhere; both within the city through alternative social networks, and located beyond the city through transnational ties. 相似文献
7.
《Geoforum》2015
Private sector actors are playing an increasingly significant role in the definition and governance of ‘sustainable’ agri-food practices. Yet, to date little attention has been paid by social scientists to how greenhouse gas (GHG) emissions are addressed as part of private agri-food governance arrangements. This paper examines how private actors within agri-food supply chains respond to emerging pressure for measures to reduce GHG emissions from agriculture. Drawing upon the Anglo-Foucauldian governmentality literature, we introduce the notion of the corporate carbon economy to conceptualise the practical techniques that enable private agri-food actors to make GHG emissions thinkable and governable in the context of existing market, regulatory, and supply chain pressures. Using a case study of the Australian dairy industry, we argue that private agri-food actors utilise a range of techniques that enable them to respond to existing government environmental regulations, balance current market pressures with future supply chain requirements, and demonstrate improved eco-efficiency along food supply chains. These techniques – which include environmental self-assessment instruments, tools for measuring GHG emissions, and sustainability reporting – have little direct relevance to the ‘international climate regime’ of carbon trading, and carbon markets more broadly, yet individually and in combination they are crucial in enacting an alternative regime of GHG governance. In concluding, we contend that the growing use of sustainability metrics by international food companies is likely to have the most powerful implications for GHG governance in the agri-food sector, with potentially far-reaching consequences for how future action on climate change is rendered thinkable and practicable. 相似文献
8.
The hafnium isotope composition of Pacific Ocean water 总被引：1，自引：0，他引：1
The first Hf isotope data for seawater are reported for a series of stations in the Northwestern Pacific and define a range from εHf = 3.5 ± 1.4 to 8.6 ± 1.6. Most samples have values within error of the average of εHf = 5.9, but significant variations are found in intermediate waters at a depth of 600 m, as well as in deep waters. The Nd and Hf isotope compositions of the deep waters fall within the range of values found for surfaces of hydrogenetic ferromanganese crusts in the region, confirming that Hf in the Fe-Mn crusts has been derived from the overlying water column, which thus provide an archive of past seawater compositions. Although the seawater samples are generally close to the global εNd-εHf correlation obtained from ferromanganese crusts, there are significant deviations from this correlation indicating that there is some additional decoupling between Nd and Hf isotope signals, most likely caused by local water mass mixing and differences in residence times. This is not resolved in the crust samples, which integrate seawater signals over 104 years. The combined use of these two isotope systems in seawater therefore provides an additional dimension for tracing water masses in the oceans. Studies of the distribution of oceanic Hf isotope compositions that have been confined to deep water and boundary waters, as recorded in seafloor ferromanganese crusts, can now be extended and aimed at characterising the entire present-day water column. Average Hf concentrations measured in this study are somewhat lower than previously reported, suggesting a shorter residence time for Hf in the global oceans, although the uncertainty in the extent of Hf removal from the water column during estuarine mixing as well as a lack of data on hydrothermal and dust inputs remains a limit on how well the residence time can be defined. 相似文献
9.
Florida Bay is a shallow, semi-enclosed lagoon that has recently experienced significant changes to its ecosystem. These include increased turbidity and the occurrence of cyanobacteria blooms in the central region of the bay. To accurately understand these changes we need to understand the spatial and temporal patterns in observed water quality parameters. To this end, we have used empirical orthogonal functions (EOFs) to analyze both the spatial and temporal variability in an 8-yr record of water quality variables. We have used the EOFs in two ways, one highlighting local changes occurring in the bay, the other emphasizing changes occurring on a bay-wide scale. The local analysis shows that the central region of the bay has the greatest variability in water quality parameters, especially with respect to chlorophyll and nutrient concentrations. The bay-wide analysis shows a different picture. The chlorophyll blooms in the central bay are not apparent bay-wide indicating that they are a local manifestation of processes occurring on a bay-wide scale. The spatial and temporal patterns for nitrate are dissimilar from the other nutrients raising the possibility that the mechanisms controlling nitrate differ from those controlling other nutrients. On a bay-wide scale, spatial patterns are similar to distributions of sediment type and show the significance of interactions between the water column and benthos. Time-series analysis of the EOFs shows that the dominant variation of many water quality parameters is seasonal, even though a system-wide shift occurred between 1994–1995 corresponding to an increase in rainfall and runoff from the Everglades. 相似文献
10.
全球变化影响下,水危机位列未来10年世界风险之首,以国际河流区的跨境水纠纷及其导致的地缘战略竞争最受关注。科学调控跨境水安全,保障国家水权益,面临诸多科学与技术难题。回顾了国际河流水安全与水权益保障的研究进展,判识了存在的问题及面临的挑战。围绕创建全球变化下跨境水资源利益共享理论与方法体系研究目标,提出了需要解决的关键科学问题、技术瓶颈和创新思路;设置了主要研究目标与内容、总体方案与技术路线。这些研究,将推进国际河流水科学研究发展,提升全球变化下中国管控跨境水安全风险、保障国家水权益的科技支撑能力。 相似文献
11.
Conservation and community in the new South Africa: A case study of the Mahushe Shongwe Game Reserve 总被引：1，自引：0，他引：1
Brian H. King 《Geoforum》2007,38(1):207-219
The idealization of natural landscapes and peoples during colonialism, coupled with the popularity of sustainable development in the postcolonial era, has contributed to the expansion of conservation planning throughout the African continent. Concerns surrounding the promotion of national and international conservation agendas at the expense of local livelihood needs have generated interest in community conservation projects that attempt to include local participation and knowledge in natural resource management. The early excitement associated with community conservation has waned in light of recent assessments that it has been unsuccessful in meeting its ecological and social goals. This parallels other research that suggests communities are understood in generic or homogenous ways that influence how these initiatives are understood. Using a case study of the Mahushe Shongwe Game Reserve, this paper evaluates how rural households access environmental and economic resources to produce livelihoods, and how these access patterns impact their views of the project. It is argued that there are significant livelihood variations within the community that shape the ways households engage with, and benefit from, conservation planning. Rather than strictly viewing Mahushe Shongwe as a constraint to environmental resource access or site for limited employment, community members identify a number of benefits from its existence including education and development opportunities. Additionally, transformations in governance systems in the region impact community views of the project since younger residents are less likely to engage with the Matsamo Tribal Authority, which participates in managing the reserve. The consequence is that conservation has various impacts and meanings within a specific community that remain tied to the livelihood and governance systems being renegotiated in the post-apartheid era. 相似文献
12.
《Geoforum》2016
First Nations in British Columbia (BC), Canada, have historically been—and largely continue to be—excluded from colonial governments’ decision-making and management frameworks for fresh water. However, in light of recent legal and legislative changes, and also changes in water governance and policy, there is growing emphasis in scholarship and among legal, policy and advocacy communities on shifting water governance away from a centralized single authority towards an approach that is watershed-based, collaborative, and involves First Nations as central to decision-making processes. Drawing on community-based research, interviews with First Nations natural resource staff and community members, and document review, the paper analyzes the tensions in collaborative water governance, by identifying First Nations’ concerns within the current water governance system and exploring how a move towards collaborative watershed governance may serve to either address, or further entrench, these concerns. This paper concludes with recommendations for collaborative water governance frameworks which are specifically focused on British Columbia, but which have relevance to broader debates over Indigenous water governance. 相似文献
13.
Ian G. Baird 《Geoforum》2010,41(2):271-281
On December 6, 1904 the present international border between Laos and Cambodia was unilaterally established when the French colonial government extracted Stung Treng Province from Laos and transferred it to Cambodia. The ethnic Brao people living in the border region were not well known to the French, and in any case, their views were not deemed important. But since then the Brao have utilised this state administrative boundary in ways not intended by its designers, or governments since then, to give them more power to create new spaces. When conditions in Cambodia have been deemed unfavourable, the Brao have often crossed into Laos, and similarly, when circumstances have been less advantageous in Laos they have moved to Cambodia.This paper traces the history of the Brao as it specifically relates to the international border between Laos and Cambodia. While this administrative boundary was created to help national governments keep populations confined within nation-states, Brao human agency has sometimes confounded these efforts, through transforming its significance and role. The boundary has separated Brao populations in ways that are sometimes upsetting to them, but it has also allowed the Brao to position themselves at the margins of different nation-states, in spaces where they have been able to, at least temporarily, avoid or reduce state control over them. These are not non-state spaces; they are fundamentally constituted by a state-established boundary, even if the Brao have been able to mobilise this resource to empower themselves, and sometimes to resist the state itself. 相似文献
14.
《Geoforum》2014
The EU biofuels market is stimulating expansion of oil palm plantations in Indonesia. Little research has yet examined the impacts on water resources arising from this large-scale land use conversion to cultivation of biofuel feedstock or positioned contextual water resource governance in Indonesian locales in a wider political ecology of European climate politics. Through the concept of ‘hybrid accountability’, we examine primary evidence from an extensive action research process in Central Kalimantan Province, Indonesian Borneo, to assess whether the EU’s Renewable Energy Directive and existing certification schemes offer a way to improve the accountability of market actors and promote sustainable water resource management. We conclude that these initiatives have had no bearing on safeguarding local livelihoods and the water resources they depend on, with governance mechanisms largely failing to address people’s grievances. Rather, the EU’s policies on biofuels have supported a de-politicisation of what needs to be seen as ‘distributional water politics’. Furthermore, certification schemes such as the Roundtable for Sustainable Palm Oil offer, at present, only cosmetic tools and are insufficient to address deep structural governance issues. We argue that further hybridisation of market-based certification and governmental regulation should be designed with the purpose of providing new transnational recourse mechanisms and remedies for affected communities. 相似文献
15.
This paper investigates the increasing provision of ‘community benefits’ – i.e. financial or material benefits to communities affected by wind energy development – with a focus on on-shore wind projects in Wales. The paper argues that as community benefits are becoming more significant in scale, so pressures are mounting on what have hitherto been largely ad hoc arrangements for their disbursement. The paper finds that previously dominant definitions of communities as places directly affected by and within close proximity to wind farm development, are being challenged by the tendency to define ‘affected’ communities as broader entities characterised by more indirect and widely dispersed claims to benefit entitlement. This redefinition of the recipient community is causing conflict, much of it focused on debates about how community benefits should be governed. Evidence suggests that any re-scaling of relations around community benefits – from local compensation towards wider development goals – may be more consensually achieved in communities with previous experience in handling these funds, and where growing income streams allow multiple constituencies to be satisfied. 相似文献
16.
《Geoforum》2017
Entitlements are generally defined as the commodities/resources (material and non-material), through which one can establish ownership or command access to resources. Applying this analytic to a case study of everyday water access in Accra, Ghana, we evaluate community water entitlements in two low-income communities with different locational and socio-cultural characteristics. We also evaluate how different entitlements to water map against variable dimensions of vulnerability. The study uses a mixed methods approach including a 200 household survey, focus groups with community members, and semi-structured interviews with local opinion leaders. Our results indicate that in both study communities, an entitlements approach provides a significantly richer portrait of water access beyond availability of piped water infrastructure. Among other factors that are important to everyday negotiations and entitlements related to water access, it is important to consider familial and kin networks, water storing options available to households and vendors, the distance and waiting time to fetch water, and local leaders' perceptions of water issues, particularly how these compare with broader citizen understandings. In this way, an entitlements approach broadens the perspective beyond infrastructural endowments (e.g. piped water), to include a range of other socioeconomic, socio-cultural and local institutional characteristics. Drawing on the empirical examples, as well as related conceptual debates, the study questions how water access is defined, and how water governance processes might benefit from a broader understanding of entitlements, as well as links to differentiated vulnerabilities, notably in times of water-related stress or scarcity. 相似文献
17.
The importance of the El Niño-Southern Oscillation (ENSO) on regional-scale climate variability is well recognized although the associated effects on local weather patterns are poorly understood. Little work has addressed the ancillary impacts of climate variability at the community level, which require analysis at a local scale. In coastal communities water quality and public health effects are of particular interest. Here we describe the historical influence of ENSO events on coastal water quality in Tampa Bay, Florida (USA) as a test case. Using approximate randomized statistics, we show significant ENSO influences on water quality particularly during winter months, with significantly greater fecal pollution levels during strong El Niño winters and significantly lower levels during strong La Niña winters as compared to neutral conditions. Similar significant patterns were also noted for El Niño and La Niña fall periods. The success of the analysis demonstrates the feasibility of assessing local effects associated with large-scale climate variability. It also highlights the possibility of using ENSO forecasts to predict periods of poor coastal water quality in urban region which local agencies may use to make appropriate prepations. 相似文献
18.
Cheryl McEwan 《Geoforum》2003,34(4):469-481
This paper considers the ongoing political transformations in South Africa in the context of debates about good governance and participatory democracy. It first appraises the current transformations of local government in South Africa, focusing specifically on relationships between gender equality and citizenship on the one hand, and local government policy, legislation, and community participation on the other, and then explores meanings of participation and how they inform approaches towards local socio-economic development. The findings of primary research conducted with civil society organisations and black women in communities in the Cape Town metropolitan area are explored through three interrelated themes. First, the model of structured participation that is central to South Africa’s democratic transformation is assessed from the perspective of black women. Second, cultures of alienation, both within local governance structures and amongst black women and the extent to which recent restructuring is combating or contributing to these are explored. Third, how participation policies are dealing with conflict within and between target groups are analysed, whether stakeholder group politics obliterate important differences in interests and whether alternative structures might be more effective in terms of women’s participation and empowerment. Finally, the findings are interpreted in relation to theoretical concepts of good governance and participatory democracy, and the potential and problems of realising South Africa’s transformation process toward developmental local government are assessed. 相似文献
19.
Trevor Birkenholtz 《Geoforum》2008,39(1):466-482
The world is facing a severe water crisis. According to the UN, by 2025 50% of the world’s population will face water scarcity. In India, where 70% of irrigation and 80% of domestic needs are met with groundwater, demand for this resource is expected to exceed supply by 2020. This has led to recent calls for groundwater governance reforms within India, and specifically within the state of Rajasthan, where no regulation exists today. The success of these reforms hinges on the interaction of the state and its agents with local users and managers of groundwater resources. Underpinning these encounters, though, are tensions between local and state forms of groundwater knowledges. The question analyzed here is in what ways do conflicting environmental knowledges adversely affect the management of overexploited groundwater resources in water-scarce India? To address this question, I examine the coevolution of pre-colonial, colonial, and post-independence groundwater and irrigation knowledges and technologies in Rajasthan, India to expose the ways that they are produced, contested, legitimated, and hybridized. The paper argues the following three claims. First, the relationship between the state and local producers of groundwater knowledge practices is non-linear and porous. For instance, the way that state subjects experience the state is uneven because within and in-between historical moments the state may attempt to assimilate, reorganize, plagiarize, or disparage local knowledge. Second, these attempts produce or exacerbate existing historically rooted tensions between farmers and state groundwater engineers. But in response, farmers often seek out non-state avenues of expertise, such as tubewell drilling firms. This results in the further hybridization of knowledge practices and also in the present-day marginalization of the state. Third, the relationship between farmers and the state is further strained because of a current lack of state visibility in the study area and also because the state continues to “see like a state”. These shifting meanings and power relations around groundwater and irrigation knowledges produce tensions that will undoubtedly negatively impact future groundwater governance strategies. 相似文献
20.
《Geoforum》2016
Environmental conservation is increasingly operated through partnerships among state, private, and civil society actors, yet little is known empirically about how such collectives function and with what livelihood and governance outcomes. The landscape approach to conservation (known also as the ecosystem approach) is one such hybrid governance platform. Implemented worldwide over the past decade by international NGOs, the landscape approach employs the ‘ecosystem principles’ of the Convention on Biological Diversity (CBD). In spite of its prominence as a conservation and development strategy, little political ecology scholarship has considered the landscape approach. This article offers a case study of a conservation landscape in the Congo Basin, the Tri-National de la Sangha (TNS), which connects tropical forests in Cameroon, Republic of Congo, and Central African Republic. Led by NGOs, the TNS has since 2001 relied on partnerships among logging companies, safari hunters, the state, and local communities. Although the landscape approach purports to facilitate re-negotiations of user rights, resource access patterns in the TNS appear to have molded to pre-existing power relations. Rather than incorporating local concerns and capabilities into management, local knowledge is discredited and livelihoods are marginalized. As a result, management occurs through spatially-demarcated zones, contrasting the fluidity of interactions among diverse groups: both human (loggers, hunter-gatherers, safari guides, NGOs) and non-human (trees, elephants). These findings are situated within a burgeoning literature on neoliberal environmental governance, and suggest that ensuring ecologically and socially positive outcomes will require careful and iterative attention to linkages between ecological processes and evolving power dynamics. 相似文献