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1.
唐常春  樊杰  陈东  胡望舒 《人文地理》2013,28(2):98-103
以长株潭结合部暮云镇为例,主要采用2004与2010年土地利用数据,从动态变化与多维综合视角,对行政边界区域土地利用与空间发展的特征、机制及问题进行系统分析,在此基础上归纳理论模式。研究表明:①暮云镇土地利用结构由农村型向城镇型快速转变,城镇用地比重年均约增加2个百分点,其中居住、教育科研、交通和工业等用地增加显著;②受主体功能定位、过境通道建设、周边城市辐射差异和规划管理制度变迁等因素影响,暮云镇空间格局与扩张模式快速演变,芙蓉大道沿线新增城镇用地占全镇82.78%,北、中、南区域开发强度分别上升20.95%、7.96%和1.58%,城镇用地平均图斑面积增长2.04倍。③研究区土地利用与空间发展存在诸多阶段性和结构性问题,应加强综合路网建设、公共设施用地供给、建设用地优化布局与集约利用以及生态环境保护。  相似文献   

2.
This article addresses the future of freshwater resources in the Palestinian West Bank through a discussion of contemporary issues that each plays a vital role in determining the long‐term sustainability of freshwater reserves, such as water resource availability, trans‐boundary water issues, water reuse and conservation, changes in land use, and the potential impact of climate change on long‐term water management. Climate change and changing land use patterns are already altering this region's water resources. Future predictions regarding the long‐term effects of these changes are complex and therefore inherently uncertain. However, the consensus among most studies on this subject indicates that currently water‐poor regions such as the Middle East will experience even greater water stress in the future. Nearly all of the freshwater consumed in the West Bank is obtained from local groundwater supplies that are suffering overdraft as well as decreasing water quality. Climate change will exacerbate water stress by increasing overall temperatures, decreasing and fluctuating precipitation, and reducing overall aquifer replenishment. Expanding urbanization will continue to strain freshwater supplies by negatively impacting the quality and quantity of available freshwater. Water management in the West Bank is further complicated by total Israeli control over water resources, which often causes water delivery to Palestinians in this region to be marginalized. This article finds that Palestinian and Israeli water managers must plan for future water crises, which will likely be a result of the combined effects of increasing urbanization and climate change coupled with exponential population growth.  相似文献   

3.
Despite being a major site of recent population growth and, arguably, a key arena for sustainability concerns, the rural‐urban fringe has received relatively little attention in the literature concerning Australian cities and urban policy. To address this shortcoming the authors review post‐World War II efforts to plan the rural‐urban fringes of Sydney and Adelaide and find a number of issues for contemporary policy‐makers. First, the fringe is becoming increasingly complex due to multi‐faceted demographic change, a broadening economic base and demands for better environmental management, all within the context of an evolving understanding of sustainability. Second, water resource management, partly under the auspices of integrated natural resource management, is assuming a much higher priority than in early fringe planning endeavours, which emphasised urban containment, agricultural land protection and landscape conservation. Third, and partly as a consequence of this shift of priorities, there is also evidence of changes to the nature and focus of policy tools used in the fringe, with land management concerns now cutting across traditional land use planning. Finally, and fundamentally, these observations raise questions about how future governance of the fringe should be organised. Together these four themes pose an enthralling series of challenges for policy‐makers for which much more research and discussion are needed.  相似文献   

4.
樊新民 《攀登》2010,29(6):86-90
本文以个体生活资源基本需求为计算单位,探讨青海生态总资源的人口承载力,预测青海人口发展与生态资源的关系。根据本文给出的计算方式,青海耕地资源与人口数量关系将在5年后基本饱和,牧草地资源与牧业人口关系8年后达到饱和,森林资源与人口关系缺口较大,水资源与人口关系富足有余,但工业污水排放问题突出。面对这一现实,青海要进一步推行控制人口增长的计划生育政策;加大保持草场生态平衡的意识和力度;保护好现有森林,充分利用林业用地资源;保护好水资源。  相似文献   

5.
A large proportion of American Indian reservation lands are owned by non‐Indian entities. A Geographic Information System (GIS) is a powerful tool for visualising land tenure changes, and public participation GIS (PPGIS) is one approach for using spatial technologies to facilitate the identification and reacquisition of reservation lands by tribes. While some tribes have successfully harnessed GIS for land management and for systematically identifying lands for reacquisition, others struggle to implement land management systems such as GIS for these purposes. This paper situates PPGIS in relation to other forms of participatory action research and outlines our use of a PPGIS framework to engage undergraduate geography students in the mapping of land tenure status on ten rural Minnesota Indian reservations as part of a collaborative partnership with the Indian Land Tenure Foundation (ILTF). A PPGIS framework allowed us to collaboratively define research goals in response to tribal community needs and provided structure for student work with partner reservations to develop and implement tailored mapping and analysis techniques. Two sets of findings are significant. First, the assembly of a standardised set of maps for American Indian reservations in Minnesota provides a tremendous visual and analytical resource for ILTF and individual tribes to pursue land reacquisition within reservation boundaries. Second, from a PPGIS perspective, we found that working with a coordinating or ‘bridging’ organisation provided key benefits by enabling education of both the student–faculty partners and the individual tribes. The PPGIS model empowered both partners by allowing tribes to harness a powerful technology to assist in visualising land‐based assets and allowing students to contribute to native land reacquisition efforts through application of their GIS skills. This mapping helps facilitate economic and cultural viability in tribal communities by providing an important visual catalogue of existing land‐based assets, in support of future land acquisition and economic development planning.  相似文献   

6.
关于当前土地管理若干问题的探讨   总被引:1,自引:0,他引:1  
加入世界贸易组织(WTO)以后,我国土地管理的哲学思想已经发生重大变化:从资源管理到资源资产管理并重,从传统管理向现代管理的进步,从生存性管理进入生存性管理和发展性管理并重阶段。全国土地管理的战略重点转移到公开公平公正问题、牢固树立切实保护耕地资源的思想和加快土地资源市场配置的进程等,城市(镇)土地规范经营成为热点。在这样的条件下,具有中国特色的土地管理理论与方法创新日益迫切。  相似文献   

7.
Land is intertwined with politics: both as a sine qua non for the territorial state, as well as a spatially limited natural resource through which geopolitical power and advantage are articulated and enacted. This remains the case, notwithstanding the emergence of global and planetary frameworks for land management towards collective environmental and developmental goals. Indeed, such frameworks contend with narratives and practices that not only treat land as a strategic national resource, but entangle it with the very ontology of statehood itself. This study examines such state-natures through the case of Russian agricultural land use. Analyzing governmental discourse from 2000 to 2020, it examines how in the extensive cultivation of agricultural land has come to be a hallmark of twenty-first century vertical and horizontal symbolic state-making: both as an instrumental means of enhancing the state's geopolitical power, as well as a means by which state is reified as environmentally sovereign and self-subsistent. So doing, the study complements a growing body of work in critical environmental geopolitics that has tended to eschew state-based analysis, or else leave the state underproblematized. As I argue, considering how the state is made natural, in turn helps to understand how nature is politically if not ontologically entangled in geopolitical thought and practice—in ways that attempts to act upon and indeed bring about wider-scale environmental subjects must contend.  相似文献   

8.
The economic, social, and environmental limits of supplying water to metropolitan areas through conventional means (reservoirs, water transfers, etc.) have resulted in growing consideration of demand management actions as well as in the use of non-conventional sources of supply. In terms of demand management, economic instruments (pricing and taxes), domestic water-saving technologies, and educational campaigns to encourage water saving during periods of drought have received special attention. While demand management policies have an effect on conserving water and therefore should be welcome, they present problems and uncertainties as well. Using the example of the metropolitan region of Barcelona, in this article I argue that water demand management policies may be insufficient for reaching their ultimate goal of controlled water consumption when confronted with structural changes in urban development such as the expansion of low-density growth, the multiplication of the number of households, or gains in income, all of which lead to a potentially greater demand for water. This calls for more integration of water policies with land use and urban development policies.  相似文献   

9.
Drought, increased population, war, air pollution, climate change, industrial and agricultural production, sanctions, inefficient water and natural resource use, and lack of enforcement of existing environmental regulations have contributed to Iran’s current environmental crisis. Insufficient water resources are forcing people to migrate, putting pressure on others. Aquifers are being drained. Air pollution has made living conditions in Iran’s cities increasingly challenging. Wind erosion is furthering the desertification of agricultural land, creating greater production demand on remaining arable areas. Biodiversity is under threat. On the other hand, Iran’s environmental future can be positively influenced by the collaboration of the public, private and non-profit sectors. Awareness and education, along with greater financial and human resources, will be necessary to tackle the problem.  相似文献   

10.
The 1990s saw a resurgence of interest in land‐use reform in the arid and semi‐arid rangelands of Australia. Scientists and conservationists called for a reassessment of land use in areas now used for extensive grazing of cattle and sheep. Landcare groups formed by pastoralists were criticised for deflecting resources away from questions of land‐use reform. While Landcare groups in agricultural regions of Australia have been subject to considerable assessment, analysis of rangelands Landcare has tended to revolve around questions of land use to the neglect of analysis of the operation of the groups themselves. Based on a case study of a pastoral Landcare group in the rangelands, the research reported in this paper found that pastoral Landcare in the rangelands has comparable outcomes to Landcare elsewhere in terms of the creation of opportunities for improved communication and learning among landholders. In addition, this group has developed from an emphasis on single‐issue projects towards multi‐faceted projects focussed on social as well as ecological sustainability. The analysis also found that political considerations were significant in the forma‐tion of the group and remained important for some pastoralists at the time of fieldwork. Finally, rangelands Landcare in this case study has provided a vehicle for reformist pastoralists and their associates to work actively towards influencing their peers to acknowledge land management problems and to reflect on their management practices.  相似文献   

11.
对2000年、2005年及2010年的遥感影像图进行解译,得到3个时期的土地利用分类图,运用景观指数法和空间分析法等方法,对长株潭地区聚落的空间演化特征及动因进行分析,并分析了聚落与耕地之间的空间关系。结果表明:长株潭地区聚落的面积、数量规模和分布密度加速扩大,集中分布在高程200 m以下;聚落空间演化的自然动因是低地平原指向,而社会动因是人口规模的变化;提出耕地与聚落面积比指数(K)概念,根据K值的大小可以将耕地与聚落的空间组合关系分为3类地区:耕地资源紧缺区、耕地资源平衡区、耕地资源盈余区;聚落与耕地的空间转移关系可以分为两大类:持续稳定型和动态变化型;长沙市周边耕地转为聚落的趋势十分明显;聚落空间扩张对耕地的影响存在一个空间临界点,城市化速度越快,临界点的位置距离聚落越远。  相似文献   

12.
Caitlin E. Craven 《对极》2016,48(3):544-562
Starting from the contention that exercising a “right to tour” is predicated on the work of producing tourability, I examine how tourability itself is a contested process involving relations of land and labour. Examining the current “resource boom” of ecotourism in the Colombian Amazon, I use an analysis of work and capital accumulation to unravel a seemingly small act of refusal by the community of Nazaret that has barred tourists’ entry to their land. I argue that this act of refusal opens up space for critically examining the relationships of land and labour, especially through the production of “life”, in the accumulation of tourable places in contemporary global capitalism. Engaging literature on both tourism studies and land politics in the Amazon region, I contribute to the scholarship on tourism and work while examining how Indigenous landscapes are being made productive towards the ends of capitalism.  相似文献   

13.
谢红彬  钟巍 《人文地理》2002,17(2):67-69,66
纵观极端干旱地区生态环境与人类活动关系的全过程,可以看出:在气候环境自然演化的背景下,人地关系存在着时间与空间上的两种变迁。从历史时期看,从原始社会、农业社会到工业社会,人地关系大致经历了依附自然、干预顺应自然、干预自然、回归自然四个阶段。从空间上看,表现出人类"逐水而徙","依水而居"的相互关系。各个阶段以气候环境变化为背景,以水资源为主线,表现出人地关系演变的时空特征。塔里木水系的瓦解和塔里木盆地的沙漠化以及胡杨林植被面积的缩小,说明近100年来人类活动对人地关系的演化逐步起主导作用  相似文献   

14.
Research and policy concerning the Southeast Asian uplands have generally focused on issues of cultural diversity, conservation and community resource management. This article argues for a reorientation of analysis to highlight the increasingly uneven access to land, labour and capital stemming from processes of agrarian differentiation in upland settings. It draws upon contrasting case studies from two areas of Central Sulawesi to explore the processes through which differentiation occurs, and the role of local histories of agriculture and settlement in shaping farmers’ responses to new market opportunities. Smallholders have enthusiastically abandoned their diversified farming systems to invest their land and labour in a new global crop, cocoa, thereby stimulating a set of changes in resource access and social relations that they did not anticipate. The concept of agency drawn from a culturally oriented political economy guides the analysis of struggles over livelihoods, land entitlements, and the reconfiguration of community, as well as the grounds on which new collective visions emerge.  相似文献   

15.
Water supply has long been regarded as a limiting resource in the further development of Australia. Active management has been necessary in both more densely settled areas and in areas of moderate settlement density but low rainfall such as the Murray-Darling system. The recently released Water 2000 Report details current knowledge about the quality and distribution of these resources. Following on from this Report this article presents perceived problems with water quantity and quality (in particular, salinisation) obtained from a survey sent to rural local governments in late 1982. The survey requested information on the relevance of twenty-two land use issues, known from earlier work to be representative of common concerns throughout Australia. Public perceptions were remarkably similar to the results of the Water 2000 Report. Water quantity/quality and salinisation issues were the sixth and seventh most commonly cited issues throughout Australia, but were of much greater concern in specific areas. Tasmanian local governments reported major problems of water supply, those in southwest Western Australia exhibited a very high level of concern with dry land salinisation, local governments in the Murray-Darling Drainage Division reported concern with salinisation, droughts, floods and general water quality, while local governments in the Gulf of Carpentaria Drainage Division consistently cited flooding as being a major problem. Information from surveys such as this, and others where the respondents are the end-users, need to be combined with expert opinion in order to increase the effectiveness of the management of our water resources.  相似文献   

16.
土地资源是作为中国二元城市化道路之一的农村城市化最基础性和最受关注的生产力要素,其协同效应驱动农村土地利用模式的全方位变革与重构,并由此引发农村和城市持续、协调发展以及区域土地资源合理利用的系列问题。本文以长江三角洲地区为例,阐述农村城市化运行机制及农村城市化驱动下的区域土地利用方式、结构、模式变革,进而探讨农村城市化进程中土地资源持续利用障碍,并寻求合理的解决途径。它对区域土地资源持续利用和城乡一体化发展具有理论价值和现实意义  相似文献   

17.
Economic and social considerations in natural resource management include the need for community participation and a greater appreciation of social and economic processes in understanding environmental problems. It is anticipated that new frameworks will guide these inclusions and redirect planning and management activities to achieve environmental sustainability. This paper examines issues of participation and the nature of ‘community’ through an analysis of relevant natural resource management policy documents and a case study of a public drinking water supply catchment in Western Australia. The findings indicate that if NRM strategies are to be successful, then a much wider and more inclusive view of community is needed, one that fully captures the different stakeholder groups beyond farmers, such as town residents, indigenous people, and those involved in other land uses. We need strategies that can accommodate differences within and between communities.  相似文献   

18.
Actors,Decisions and Policy Changes in Local Urbanization   总被引:1,自引:0,他引:1  
Land-use policies have long been recognized as important driving forces of urbanization, but little research has been conducted on the interrelationship of actors, policy decision processes and changes in the built environment. In this paper, we use the advocacy coalition framework to analyse policy decisions that affected the development of the built environment in three Swiss municipalities between 1970 and 2007. We found that all three municipalities experienced the same major policy changes, namely a new definition of the role of urban management (1970s); the adoption of an environment- and problem-oriented approach in land-use planning (1980s) as well as an increased emphasis on public participation and intra-municipal coordination (1990s). Although national laws and actors have shaped the crucial driving forces of urban change, local actors, their coalitions and the local distribution of resources crucially determined these decisions in the study period. Our findings suggest that a stronger focus on local actors, their coalitions and resources could greatly improve our understanding of spatial development processes in Switzerland. For instance, as land ownership turned out to be a crucial resource, Swiss municipalities could benefit from engaging more actively in the land market.  相似文献   

19.
明清时期,福州西湖水环境总体趋劣。明代西湖水源较为充足,水质状况良好;万历以降,受民间占垦等社会因素影响,湖域面积缩减,水质日渐趋下;清代中后期,福州城内水道淤浅,江潮渐绝,西湖水源趋向单一。明清时期西湖水环境的变动,除了受区域气候干湿变化、山地森林水土保持以及湖泊含沙量的影响之外,还与人为的水地之争密切相关。由于人地关系紧张,加之水资源权属不清、新垦湖田税赋征收模糊等,获取湖利的必然性刺激了民间占湖为地的行为。地方官府也曾采取如修闸筑坝护堤、追返侵地还湖、清理粪秽淤泥等治理措施,并取得阶段性成效,但受区域人口、土地资源与生存环境等社会经济因素的影响,西湖历经多次治理仍积弊难除。  相似文献   

20.
土地资源是人类生存的基本资料和劳动对象 ,是人地关系系统中一个重要的物质信息载体 ,是评价人类生境的一个重要对象。土地利用是人类在现阶段生产力水平下 ,对区域土地资源的开发程度和利用情况。土地资源的现状评价 ,是反映人地关系协调程度的一个重要手段。本文采用目前广泛使用的GIS先进技术手段 ,对青海省海北藏族自治州土地资源的利用现状进行了评价。表明了GIS技术对该区域土地利用评价起到了缩小工作量 ,提高精确度的作用。并且从土地利用角度对海北州人地关系现状进行了描述。  相似文献   

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