共查询到18条相似文献,搜索用时 125 毫秒
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土地资源优化配置是新农村建设过程中面临的重要问题。文章从土地资源优化配置的基本内涵入手,探讨土地资源优化配置与新农村建设的关系;阐述了喀什市土地资源利用现状及存在问题;提出要制定科学的土地利用总体规划和新村规划。创新投入机制,加大投入力度,合理配置农业土地类型,尝试土地流转,集约节约用地,建设农村中心村,统筹土地利用,探索城乡一体化发展新模式。通过优化喀什市土地资源配置,确保新农村高效、迅速发展。 相似文献
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主要研究新疆生产建设兵团在屯垦戍边新型团场建设中土地的节约和集约利用问题。分析了土地利用的特点及存在的问题,指出土地节约集约利用的影响因素,并提出了加快新型团场建设的土地节约和集约利用对策与措施。 相似文献
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高速公路项目由于其线路长、工程量大等特点,不可避免会对生态环境、土地资源、水土流失、人居环境等造成不利影响,本文根据四川各区域的地形地貌、水文地质、生物多样性等环境特点,提出了在不同地区高速公路建设中的环境影响评价要点,从而使环境影响评价内容更具有针对性。 相似文献
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城市土地集约利用与土地供需关系研究 总被引:1,自引:0,他引:1
用地供需矛盾在我国社会经济快速发展时代是一个突出的问题。伴随土地集约利用概念的提出,城市土地的节约集约利用成为化解建设用地供需矛盾的主要手段。但是由于土地的供给与需求影响因素较多,而且相互之间交错关联,有必要将土地供需与土地集约利用作为一个系统来考虑。在充分考虑各要素之间的局部关系与系统整体功能关系的基础上,构建了土地供需与集约用地的模拟系统。分析发现,城市建设用地的供给量由城市土地储备量、城市建设用地供需差、城市总体节约度共同决定。建设用地供给量在土地储备足够的情况下是由建设用地供需差决定的,并与城市总体集约度呈现抛物线关系。通过分析验证,该结果可为土地主管部门制定供地计划提供科学依据。 相似文献
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国家经贸委资源节约与综合利用司 《中国环保产业》2001,(2):14-15
2001年是进入新世纪的第一年,也是我国“十五”计划的开局之年。党的十五大提出,在现代化建设中必须实施可持续发展战略,要坚持“资源开发与节约并举,把节约放在首位,提高资源利用效率”。党的十五届五中全会,把水资源和油气资源问题作为维护国家经济安全和长远发展的战略问题。这是今后一个时期我国资源节约综合利用工作重要的指导思想。 相似文献
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土地开发整理项目中的权属调整研究 总被引:1,自引:0,他引:1
土地开发整理是在我国现阶段土地资源日益稀缺的严峻情况下,国家为了缓和经济与土地之间的矛盾提出的,目的是实现土地的可持续利用.在此背景下,土地开发整理类型越来越多样化和复杂化,随之带来的土地权属问题日益突出.在对土地开发整理权属问题的本质认识基础上,阐述了权属争议问题的类型,提出了土地开发整理中权属调整的工作措施和技术方案,以及规范化、科学化土地开发整理权属调整的建议. 相似文献
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随着我国城镇化水平的提高,农村居民点用地与耕地、城市建设用地的矛盾日益突出.在综述农村居民点土地整理研究现状的基础上,结合国家农村建设用地标准对德州市农村居民点用地潜力进行了测算,对居民点土地整理的效益进行了评价,并对德州市合村并居中农村居民点土地整理提出了建议. 相似文献
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引黄济青工程创造了惊人的经济效益和社会效益,但大量的黄河淤泥沉积,却危害了当地生态环境,造成土地资源浪费.通过分析黄河淤泥的化学成分、颗粒组成、塑性指数,对沉淀池堆场的淤泥和黄河河床的淤泥进行比较和筛选,最后进行了成型和煅烧,试验结果表明:2号堆场的黄河淤泥完全可以替代粘土作原料生产新型墙体材料,其技术指标完全符合国家产品质量要求,每年可节约土地约13.3公顷. 相似文献
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Hans Schreier Sandra Brown George Kennedy Pravakar B. Shah 《Environmental management》1991,15(6):815-822
A GIS-based land evaluation model was developed to determine the food, feed, and fuelwood sufficiency of all districts in
Nepal. Resource surpluses or deficits were calculated for each district for 1981, the year for which the national land resource
data were available. Of the three resources, feed supplies were found to be the most critical. Feed deficits occurred in 57%
of all districts in 1981, while food and fuelwood deficits occurred in less than 10% of all districts. Different scenarios
were carried out for the year 2000 to estimate the magnitude of future resource deficits, assuming resource use and yields
in Nepal remain constant in the face of growing population and livestock numbers. Linking resource data with spreadsheet and
GIS systems provides a new way to understand and evaluate resources at the district and national levels. To more fully capture
the usefulness of this approach, information on rates of change in productivity and land use is needed. 相似文献
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京珠高速粤境北段通过区地形地质复杂,该区是广东植物种类、植被类型最丰富的地区,生态系统比较脆弱。本文通过总悬浮颗粒物数据分析了高速公路施工阶段所造成的扬尘污染,并且对改善高速公路施工期的环境大气质量提出了建议。 相似文献
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Robert Mc Morran Martin F. Price Charles R. Warren 《Journal of Environmental Planning and Management》2008,51(2):177-199
Concepts of wild land have recreational, ecological and cultural dimensions, and place varying emphasis on physical landscape attributes and the perceptions of users. In Scotland, national and NGO policies show reasonable consistency in interpreting and defining ‘wild land’, emphasising the (perception of) lack of current human influence as a key criterion. This research used semi-structured interviews with key individuals and a questionnaire survey of land managers to evaluate concepts and perceptions of wild land in Scotland. Recognising that the conceptual and spatial definition of wild land is a key issue, a new typology is proposed. Weaknesses in the policy framework, as well as key potential threats to, and opportunities associated with, wild landscapes are identified. Management initiatives are fitted to the typology and divided into four management themes. Key recommendations are: (i) that national policy for wild landscapes needs to incorporate criteria, which recognise the multiple values deriving from such areas; and (ii) that future research should combine user group preferences with physical attribute information in determining what constitutes wild landscapes. 相似文献
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耕地资源安全是保障我国国民经济发展的重要条件之一,又关系到我国的粮食安全。借用生物学的承载力分析方法,设定耕地资源安全测度指标,建立了耕地资源安全测度模型,对郑州市1996—2005年10年来耕地资源安全进行了测算,并分析了耕地资源的时空特征。 相似文献
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A. Parviz Koohafkan 《Natural resources forum》2000,24(2):69-81
Land degradation continues to be a major threat to local and national food security. With limited potential to develop new land, any increase in agricultural production must be sought largely through the better use of land already under cultivation. Concerns for the global environment associated with agriculture worldwide have also increased in recent years and require more coordinated efforts at global and national levels with decentralisation of activities at the local level.
This article presents an overview of land resources potential for food production, the processes and extent of land degradation and its economic and environmental costs and impacts, and highlights some macro-economic policies and institutional measures for the prevention of land degradation and rehabilitation of degraded lands. A people-centred programme is presented as a basis for decentralising activities for sustainable land use and land management. Finally, the need for better coordinated efforts of concerned UN, multinational agencies and NGOs for the implementation of Agenda 21 and related conventions is stressed. 相似文献
This article presents an overview of land resources potential for food production, the processes and extent of land degradation and its economic and environmental costs and impacts, and highlights some macro-economic policies and institutional measures for the prevention of land degradation and rehabilitation of degraded lands. A people-centred programme is presented as a basis for decentralising activities for sustainable land use and land management. Finally, the need for better coordinated efforts of concerned UN, multinational agencies and NGOs for the implementation of Agenda 21 and related conventions is stressed. 相似文献
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Dilemmas of natural resources governance have been a central concern for scholars, policy makers, and users. Major debates occur over the implications of property rights for common resources management. After the Mexican Revolution (1910–1917), land was distributed mainly as ejidos conceived as a hereditary but unalienable collective form of property. In 1992, a new Agrarian Law was decreed that allows individual ownership by removing various restrictions over the transfer of land. Scholars have examined the reform mainly focusing on land-tenure changes and environmental fragmentation. This study examines how the new ownership regime is affecting collective decision-making in ejidos located in a tropical dry forest (TDF) ecosystem. Information on decision-making processes before and after the 1992 reform was gathered through 52 interviews conducted in four ejidos selected along a gradient including agricultural, cattle-raising, and TDF use. The new individualized land property system reduced collective action in ejidos but did not trigger it. Collective action responses to the 1992 reform were buffered by self-organization each ejido already had. Heterogeneous users who shared a short history and showed little understanding of TDF and low dependence on its resources seemed to explain why ejidos have not been able to share a sense of community that would shape the construction of institutions for the collective management of forest resources. However, when a resource is scarce and highly valuable such as water the same users showed capacities for undertaking costly co-operative activities. 相似文献
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ALEXANDER STEVENSON 《Natural resources forum》1977,2(1):53-62
In many countries, an increasing amount of attention is being paid to the economic and environmental repercussions of mineral resources development, and in particular to the problems of industrialisation of an agricultural society. In Botswana, the discovery of and planning for the development of nickel deposits is an important element of national policy. However, often overlooked is the basic and continuing role that has to be provided by the agricultural sector. The pressure of people and of livestock on the land, and the extension of cultivation into increasingly fragile environments where the availability of water is a critical constraint, pose serious problems for policy makers. The author examines the dilemma in a case study of Botswana, showing how changes in the agricultural sector have precipitated problems of water supply and of environmental stress. The need for inter-disciplinary approaches to policy making is underscored, together with detailed and integrated studies of the dimensions of these inter-related problems. The problem of the availability of water in adequate quantities and of appropriate quality has become a serious policy concern. Later this year the United Nations Conference on Desertification will address the broad scope of the relationships between man, land and water. This article examines one example of these changing relationships. 相似文献